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<li class="toctree-l4"><a class="reference internal" href="../get-started/bootable-usb/bootable-usb.html#create-a-bootable-usb-drive-on-linux">Create a bootable USB drive on Linux*</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/bootable-usb/bootable-usb.html#create-a-bootable-usb-drive-on-macos">Create a bootable USB drive on macOS*</a></li>
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<li class="toctree-l3"><a class="reference internal" href="../get-started/bare-metal-install-server/bare-metal-install-server.html">Install Clear Linux* OS on bare metal with live server</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../get-started/bare-metal-install-server/bare-metal-install-server.html#system-requirements">System requirements</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/bare-metal-install-server/bare-metal-install-server.html#download-the-latest-cl-live-server-image">Download the latest Clear Linux OS live server image</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/bare-metal-install-server/bare-metal-install-server.html#install-cl-on-your-target-system">Install Clear Linux OS on your target system</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/bare-metal-install-server/bare-metal-install-server.html#launch-the-cl-installer">Launch the Clear Linux OS Installer</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/bare-metal-install-server/bare-metal-install-server.html#minimum-installation-requirements">Minimum installation requirements</a></li>
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<li class="toctree-l3"><a class="reference internal" href="../get-started/virtual-machine-install/gce.html">Launch Clear Linux* OS Compute Engine on Google Cloud Platform*</a><ul>
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<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/gce.html#setup-cl-vm-on-gcp">Setup Clear Linux OS VM on GCP</a></li>
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<li class="toctree-l3"><a class="reference internal" href="../get-started/virtual-machine-install/hyper-v.html">Use Hyper-V*</a><ul>
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<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/hyper-v.html#enable-hyper-v">Enable Hyper-V</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/hyper-v.html#create-a-virtual-network">Create a virtual network</a></li>
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<li class="toctree-l3"><a class="reference internal" href="../get-started/virtual-machine-install/kvm.html">Run Clear Linux* OS as a KVM guest OS</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/kvm.html#install-qemu-kvm">Install QEMU-KVM</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/kvm.html#download-and-launch-the-virtual-machine">Download and launch the virtual machine</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/kvm.html#ssh-access-into-the-virtual-machine">SSH access into the virtual machine</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/kvm.html#optional-add-the-gnome-display-manager-gdm">Optional: Add the GNOME Display Manager (GDM)</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../get-started/virtual-machine-install/virtualbox-cl-installer.html">Install a Clear Linux* OS VM in VirtualBox*</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/virtualbox-cl-installer.html#prerequisites">Prerequisites</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/virtualbox-cl-installer.html#download-and-extract-the-cl-installer-iso">Download and extract the Clear Linux OS installer ISO</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/virtualbox-cl-installer.html#create-a-new-vb-virtual-machine">Create a new VirtualBox virtual machine</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/virtualbox-cl-installer.html#install-cl-on-the-vb-vm">Install Clear Linux OS on the VirtualBox VM</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/virtualbox-cl-installer.html#troubleshooting">Troubleshooting</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../get-started/virtual-machine-install/vmw-player.html">Install Clear Linux* OS as a VMware* Workstation Player guest OS</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/vmw-player.html#overview">Overview</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/vmw-player.html#install-the-vmware-workstation-player-hypervisor">Install the VMware Workstation Player hypervisor</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/vmw-player.html#download-the-latest-cl-installer">Download the latest Clear Linux OS installer</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/vmw-player.html#create-and-configure-a-new-vm">Create and configure a new VM</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/vmw-player.html#install-cl-into-the-new-vm">Install Clear Linux OS into the new VM</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/vmw-player.html#detach-the-cl-installer-iso-from-the-vm">Detach the Clear Linux OS installer ISO from the VM</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/vmw-player.html#enable-uefi-boot-support">Enable UEFI boot support</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/vmw-player.html#related-topics">Related topics</a></li>
</ul>
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<li class="toctree-l3"><a class="reference internal" href="../get-started/virtual-machine-install/vmw-player-preconf.html">Run pre-configured Clear Linux* OS image as a VMware* Workstation Player guest OS</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/vmw-player-preconf.html#overview">Overview</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/vmw-player-preconf.html#install-the-vmware-workstation-player-hypervisor">Install the VMware Workstation Player hypervisor</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/vmw-player-preconf.html#download-the-latest-cl-vmware-image">Download the latest Clear Linux OS VMware image</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/vmw-player-preconf.html#image-types">Image types</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/vmw-player-preconf.html#create-and-configure-a-new-vm">Create and configure a new VM</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/vmw-player-preconf.html#attach-the-pre-configured-cl-vmware-image">Attach the pre-configured Clear Linux OS VMware image</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/vmw-player-preconf.html#enable-uefi-boot-support">Enable UEFI boot support</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/vmw-player-preconf.html#power-on-the-vm">Power on the VM</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/vmw-player-preconf.html#related-topics">Related topics</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../get-started/virtual-machine-install/vmware-esxi-install-cl.html">Install Clear Linux* OS as a VMware* ESXi guest OS</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/vmware-esxi-install-cl.html#overview">Overview</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/vmware-esxi-install-cl.html#download-the-latest-cl-installer-iso">Download the latest Clear Linux OS installer ISO</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/vmware-esxi-install-cl.html#upload-the-cl-installer-iso-to-the-vmware-server">Upload the Clear Linux OS installer ISO to the VMware server</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/vmware-esxi-install-cl.html#create-and-configure-a-new-vm">Create and configure a new VM</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/vmware-esxi-install-cl.html#install-cl-into-the-new-vm">Install Clear Linux OS into the new VM</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/vmware-esxi-install-cl.html#reconfigure-the-vm-s-settings-to-boot-the-newly-installed-cl">Reconfigure the VM’s settings to boot the newly-installed Clear Linux OS</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/vmware-esxi-install-cl.html#power-on-the-vm-and-boot-cl">Power on the VM and boot Clear Linux OS</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/vmware-esxi-install-cl.html#related-topics">Related topics</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../get-started/virtual-machine-install/vmware-esxi-preconfigured-cl-image.html">Run preconfigured Clear Linux* OS image as a VMware* ESXi guest OS</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/vmware-esxi-preconfigured-cl-image.html#overview">Overview</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/vmware-esxi-preconfigured-cl-image.html#download-the-latest-cl-vmware-image">Download the latest Clear Linux OS VMware image</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/vmware-esxi-preconfigured-cl-image.html#upload-the-cl-image-to-the-vmware-server">Upload the Clear Linux OS image to the VMware server</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/vmware-esxi-preconfigured-cl-image.html#convert-the-cl-image-to-an-esxi-supported-format">Convert the Clear Linux OS image to an ESXi-supported format</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/vmware-esxi-preconfigured-cl-image.html#create-and-configure-a-new-vm">Create and configure a new VM</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/vmware-esxi-preconfigured-cl-image.html#power-on-the-vm-and-boot-cl">Power on the VM and boot Clear Linux OS</a></li>
<li class="toctree-l4"><a class="reference internal" href="../get-started/virtual-machine-install/vmware-esxi-preconfigured-cl-image.html#related-topics">Related topics</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="maintenance/increase-virtual-disk-size.html">Increase virtual disk size of an image</a><ul>
<li class="toctree-l4"><a class="reference internal" href="maintenance/increase-virtual-disk-size.html#determine-the-partition-order-and-sizes-of-the-prebuilt-image">Determine the partition order and sizes of the prebuilt image</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/increase-virtual-disk-size.html#id1">Increase virtual disk size</a></li>
</ul>
</li>
</ul>
</li>
</ul>
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<li class="toctree-l1"><a class="reference internal" href="../about.html">About</a><ul>
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<li class="toctree-l1 current"><a class="reference internal" href="guides.html">Guides</a><ul class="current">
<li class="toctree-l2"><a class="reference internal" href="guides.html#clear-linux">Clear Linux</a><ul>
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<li class="toctree-l4"><a class="reference internal" href="clear/autoproxy.html#description">Description</a></li>
<li class="toctree-l4"><a class="reference internal" href="clear/autoproxy.html#how-it-works">How it works</a></li>
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<li class="toctree-l3"><a class="reference internal" href="clear/autospec.html">autospec</a><ul>
<li class="toctree-l4"><a class="reference internal" href="clear/autospec.html#description">Description</a></li>
<li class="toctree-l4"><a class="reference internal" href="clear/autospec.html#how-it-works">How it works</a></li>
<li class="toctree-l4"><a class="reference internal" href="clear/autospec.html#examples">Examples</a></li>
<li class="toctree-l4"><a class="reference internal" href="clear/autospec.html#test-packaged-software">Test packaged software</a></li>
<li class="toctree-l4"><a class="reference internal" href="clear/autospec.html#references">References</a></li>
<li class="toctree-l4"><a class="reference internal" href="clear/autospec.html#related-topics">Related topics</a></li>
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<li class="toctree-l3"><a class="reference internal" href="clear/compatible-kernels.html">Kernels</a><ul>
<li class="toctree-l4"><a class="reference internal" href="clear/compatible-kernels.html#bare-metal-only">Bare metal only</a></li>
<li class="toctree-l4"><a class="reference internal" href="clear/compatible-kernels.html#also-compatible-with-vms">Also compatible with VMs</a></li>
<li class="toctree-l4"><a class="reference internal" href="clear/compatible-kernels.html#vm-only">VM only</a></li>
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<li class="toctree-l3"><a class="reference internal" href="clear/debug.html">Debug system</a><ul>
<li class="toctree-l4"><a class="reference internal" href="clear/debug.html#background">Background</a></li>
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</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="clear/ister.html">ister.py image builder</a><ul>
<li class="toctree-l4"><a class="reference internal" href="clear/ister.html#description">Description</a></li>
<li class="toctree-l4"><a class="reference internal" href="clear/ister.html#examples">Examples</a></li>
<li class="toctree-l4"><a class="reference internal" href="clear/ister.html#related-topics">Related topics</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="clear/mixer.html">mixer</a><ul>
<li class="toctree-l4"><a class="reference internal" href="clear/mixer.html#description">Description</a></li>
<li class="toctree-l4"><a class="reference internal" href="clear/mixer.html#how-it-works">How it works</a></li>
<li class="toctree-l4"><a class="reference internal" href="clear/mixer.html#examples">Examples</a></li>
<li class="toctree-l4"><a class="reference internal" href="clear/mixer.html#references">References</a></li>
<li class="toctree-l4"><a class="reference internal" href="clear/mixer.html#related-topics">Related topics</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="clear/security.html">OS Security</a><ul>
<li class="toctree-l4"><a class="reference internal" href="clear/security.html#security-in-updates">Security in updates</a></li>
<li class="toctree-l4"><a class="reference internal" href="clear/security.html#security-in-software">Security in software</a></li>
<li class="toctree-l4"><a class="reference internal" href="clear/security.html#security-in-system-design">Security in system design</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="clear/stateless.html">Stateless</a><ul>
<li class="toctree-l4"><a class="reference internal" href="clear/stateless.html#file-level-separation">File-level separation</a></li>
<li class="toctree-l4"><a class="reference internal" href="clear/stateless.html#software-configuration">Software configuration</a></li>
<li class="toctree-l4"><a class="reference internal" href="clear/stateless.html#system-reset">System reset</a></li>
<li class="toctree-l4"><a class="reference internal" href="clear/stateless.html#additional-information">Additional information</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="clear/swupd-guide.html">swupd</a><ul>
<li class="toctree-l4"><a class="reference internal" href="clear/swupd-guide.html#description">Description</a></li>
<li class="toctree-l4"><a class="reference internal" href="clear/swupd-guide.html#how-it-works">How it works</a></li>
<li class="toctree-l4"><a class="reference internal" href="clear/swupd-guide.html#examples">Examples</a></li>
<li class="toctree-l4"><a class="reference internal" href="clear/swupd-guide.html#quick-reference">Quick reference</a></li>
<li class="toctree-l4"><a class="reference internal" href="clear/swupd-guide.html#related-topics">Related topics</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="telemetrics/telem-guide.html">Telemetrics</a><ul>
<li class="toctree-l4"><a class="reference internal" href="telemetrics/telem-guide.html#overview">Overview</a></li>
<li class="toctree-l4"><a class="reference internal" href="telemetrics/telem-guide.html#how-to-use">How to use</a></li>
<li class="toctree-l4"><a class="reference internal" href="telemetrics/telem-guide.html#examples">Examples</a></li>
<li class="toctree-l4"><a class="reference internal" href="telemetrics/telem-guide.html#reference">Reference</a></li>
</ul>
</li>
</ul>
</li>
<li class="toctree-l2 current"><a class="reference internal" href="guides.html#maintenance">Maintenance</a><ul class="current">
<li class="toctree-l3"><a class="reference internal" href="maintenance/architect-lifecycle.html">Architect the life-cycle of Clear Linux* OS</a><ul>
<li class="toctree-l4"><a class="reference internal" href="maintenance/architect-lifecycle.html#prerequisites">Prerequisites</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/architect-lifecycle.html#description">Description</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/architect-lifecycle.html#content-workflow">Content Workflow</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/architect-lifecycle.html#release-workflow">Release Workflow</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/architect-lifecycle.html#implementation">Implementation</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="maintenance/assign-static-ip.html">Assign a static IP address</a><ul>
<li class="toctree-l4"><a class="reference internal" href="maintenance/assign-static-ip.html#identify-which-program-is-managing-the-interface">Identify which program is managing the interface</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/assign-static-ip.html#using-networkmanager">Using NetworkManager</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/assign-static-ip.html#using-systemd-networkd">Using systemd-networkd</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="maintenance/bulk-provision.html">Bulk provision</a><ul>
<li class="toctree-l4"><a class="reference internal" href="maintenance/bulk-provision.html#overview">Overview</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/bulk-provision.html#prerequisites">Prerequisites</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/bulk-provision.html#configuration">Configuration</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="maintenance/cpu-performance.html">CPU Power and Performance</a><ul>
<li class="toctree-l4"><a class="reference internal" href="maintenance/cpu-performance.html#overview">Overview</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/cpu-performance.html#cpu-power-saving-mechanisms">CPU power saving mechanisms</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/cpu-performance.html#linux-cpu-clock-frequency-scaling">Linux CPU clock frequency scaling</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/cpu-performance.html#thermal-management">Thermal management</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="maintenance/developer-workstation.html">Developer Workstation</a><ul>
<li class="toctree-l4"><a class="reference internal" href="maintenance/developer-workstation.html#workstation-setup">Workstation Setup</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/developer-workstation.html#swupd-search">swupd search</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/developer-workstation.html#core-concepts">Core Concepts</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="maintenance/download-verify-decompress.html">Download, verify, and decompress a Clear Linux* OS image</a><ul>
<li class="toctree-l4"><a class="reference internal" href="maintenance/download-verify-decompress.html#linux-os-steps">Linux OS steps</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/download-verify-decompress.html#macos-steps">macOS* steps</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/download-verify-decompress.html#windows-os-steps">Windows* OS steps</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/download-verify-decompress.html#image-types">Image types</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="maintenance/enable-user-space.html">Create and enable a new user space</a><ul>
<li class="toctree-l4"><a class="reference internal" href="maintenance/enable-user-space.html#create-a-new-user">Create a new user</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/enable-user-space.html#add-the-new-user-to-the-wheel-group">Add the new user to the <em>wheel</em> group</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/enable-user-space.html#install-and-update-the-os-software-to-its-current-version">Install and update the OS software to its current version</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/enable-user-space.html#add-a-bundle">Add a bundle</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/enable-user-space.html#next-steps">Next steps</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="maintenance/fix-broken-install.html">Fix a broken installation</a><ul>
<li class="toctree-l4"><a class="reference internal" href="maintenance/fix-broken-install.html#overview">Overview</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/fix-broken-install.html#prerequisites">Prerequisites</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/fix-broken-install.html#boot-a-live-desktop-image-to-fix-target-system">Boot a live desktop image to fix target system</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/fix-broken-install.html#install-from-live-image">Install from live image</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/fix-broken-install.html#mount-root-partition-verify-and-fix">Mount root partition, verify, and fix</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="maintenance/hostname.html">Modify hostname</a><ul>
<li class="toctree-l4"><a class="reference internal" href="maintenance/hostname.html#overview">Overview</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/hostname.html#set-your-hostname">Set your hostname</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/hostname.html#view-your-hostname">View your hostname</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="maintenance/increase-virtual-disk-size.html">Increase virtual disk size of an image</a><ul>
<li class="toctree-l4"><a class="reference internal" href="maintenance/increase-virtual-disk-size.html#determine-the-partition-order-and-sizes-of-the-prebuilt-image">Determine the partition order and sizes of the prebuilt image</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/increase-virtual-disk-size.html#id1">Increase virtual disk size</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="maintenance/query-upstream.html">Query package info from upstream repository</a><ul>
<li class="toctree-l4"><a class="reference internal" href="maintenance/query-upstream.html#overview">Overview</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/query-upstream.html#prerequisites">Prerequisites</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/query-upstream.html#configure-dnf">Configure DNF</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/query-upstream.html#dnf-command-usage-examples">DNF command usage examples</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="maintenance/resource-limits.html">Resource limits</a><ul>
<li class="toctree-l4"><a class="reference internal" href="maintenance/resource-limits.html#system-wide-limits">System-wide limits</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/resource-limits.html#per-user-limits">Per-user limits</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/resource-limits.html#service-limits">Service limits</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="maintenance/restart.html">Restart system services after an OS update</a><ul>
<li class="toctree-l4"><a class="reference internal" href="maintenance/restart.html#overview">Overview</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/restart.html#how-it-works">How it works</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/restart.html#basic-options">Basic options</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/restart.html#monitor-options">Monitor options</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/restart.html#example">Example</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/restart.html#telemetry">Telemetry</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/restart.html#conclusion">Conclusion</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="maintenance/time.html">Set the time</a></li>
<li class="toctree-l3"><a class="reference internal" href="maintenance/validate-signatures.html">Validate signatures</a><ul>
<li class="toctree-l4"><a class="reference internal" href="maintenance/validate-signatures.html#overview">Overview</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/validate-signatures.html#image-content-validation">Image content validation</a></li>
<li class="toctree-l4"><a class="reference internal" href="maintenance/validate-signatures.html#update-content-validation">Update content validation</a></li>
</ul>
</li>
<li class="toctree-l3 current"><a class="current reference internal" href="#">Deploy at Scale</a><ul>
<li class="toctree-l4"><a class="reference internal" href="#overview">Overview</a></li>
<li class="toctree-l4"><a class="reference internal" href="#pick-a-usage-and-update-strategy">Pick a usage and update strategy</a></li>
<li class="toctree-l4"><a class="reference internal" href="#pick-an-image-distribution-strategy">Pick an image distribution strategy</a></li>
<li class="toctree-l4"><a class="reference internal" href="#considerations-with-stateless-systems">Considerations with stateless systems</a></li>
</ul>
</li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="guides.html#network">Network</a><ul>
<li class="toctree-l3"><a class="reference internal" href="network/custom-clear-container.html">Build a custom Clear Linux* OS based Docker container image</a><ul>
<li class="toctree-l4"><a class="reference internal" href="network/custom-clear-container.html#prerequisites">Prerequisites</a></li>
<li class="toctree-l4"><a class="reference internal" href="network/custom-clear-container.html#build-the-base-container-image">Build the base container image</a></li>
<li class="toctree-l4"><a class="reference internal" href="network/custom-clear-container.html#manage-bundles-in-a-container">Manage bundles in a container</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="network/dpdk.html">Use DPDK to send packets between platforms</a><ul>
<li class="toctree-l4"><a class="reference internal" href="network/dpdk.html#overview">Overview</a></li>
<li class="toctree-l4"><a class="reference internal" href="network/dpdk.html#prerequisites">Prerequisites</a></li>
<li class="toctree-l4"><a class="reference internal" href="network/dpdk.html#install-dpdk-and-build-l3fwd-example-platform-b">Install dpdk and build l3fwd example (Platform B)</a></li>
<li class="toctree-l4"><a class="reference internal" href="network/dpdk.html#build-pktgen-platform-a">Build pktgen (Platform A)</a></li>
<li class="toctree-l4"><a class="reference internal" href="network/dpdk.html#bind-nics-to-dpdk-kernel-drivers-platforms-a-and-b">Bind NICs to DPDK kernel drivers (Platforms A and B)</a></li>
<li class="toctree-l4"><a class="reference internal" href="network/dpdk.html#set-hugepages-platforms-a-and-b">Set hugepages (Platforms A and B)</a></li>
<li class="toctree-l4"><a class="reference internal" href="network/dpdk.html#set-up-the-physical-environment-platforms-a-and-b">Set up the physical environment (Platforms A and B)</a></li>
<li class="toctree-l4"><a class="reference internal" href="network/dpdk.html#run-l3fwd-application-platform-b">Run l3fwd application (Platform B)</a></li>
<li class="toctree-l4"><a class="reference internal" href="network/dpdk.html#run-pktgen-application-platform-a">Run pktgen application (Platform A)</a></li>
<li class="toctree-l4"><a class="reference internal" href="network/dpdk.html#appendix-a-use-pass-through-for-virtual-machines">Appendix A: Use pass-through for virtual machines</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="network/ipxe-install.html">Install over the network with iPXE</a><ul>
<li class="toctree-l4"><a class="reference internal" href="network/ipxe-install.html#overview">Overview</a></li>
<li class="toctree-l4"><a class="reference internal" href="network/ipxe-install.html#prerequisites">Prerequisites</a></li>
<li class="toctree-l4"><a class="reference internal" href="network/ipxe-install.html#configuration">Configuration</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="network/network-bonding.html">Combine multiple interfaces with network bonding</a></li>
<li class="toctree-l3"><a class="reference internal" href="network/vnc.html">Remote-desktop to a host using VNC</a><ul>
<li class="toctree-l4"><a class="reference internal" href="network/vnc.html#install-the-vnc-server-and-misc-components-on-your-host">Install the VNC server and misc. components on your host</a></li>
<li class="toctree-l4"><a class="reference internal" href="network/vnc.html#configure-a-vnc-server-start-method-on-your-host">Configure a VNC-server-start method on your host</a></li>
<li class="toctree-l4"><a class="reference internal" href="network/vnc.html#install-a-vnc-viewer-app-and-an-ssh-client-on-your-client-system">Install a VNC viewer app and an SSH client on your client system</a></li>
<li class="toctree-l4"><a class="reference internal" href="network/vnc.html#establish-a-vnc-connection-to-your-host">Establish a VNC connection to your host</a></li>
<li class="toctree-l4"><a class="reference internal" href="network/vnc.html#terminate-a-vnc-connection-to-your-host">Terminate a VNC connection to your host</a></li>
<li class="toctree-l4"><a class="reference internal" href="network/vnc.html#encrypt-vnc-traffic-through-an-ssh-tunnel">Encrypt VNC traffic through an SSH tunnel</a></li>
</ul>
</li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="guides.html#kernel">Kernel</a><ul>
<li class="toctree-l3"><a class="reference internal" href="kernel/kernel-development.html">Kernel development</a><ul>
<li class="toctree-l4"><a class="reference internal" href="kernel/kernel-development.html#overview">Overview</a></li>
<li class="toctree-l4"><a class="reference internal" href="kernel/kernel-development.html#request-changes-be-included-with-the-cl-kernel">Request changes be included with the Clear Linux OS kernel</a></li>
<li class="toctree-l4"><a class="reference internal" href="kernel/kernel-development.html#set-up-kernel-development-environment">Set up kernel development environment</a></li>
<li class="toctree-l4"><a class="reference internal" href="kernel/kernel-development.html#customize-the-linux-kernel-source">Customize the Linux kernel source</a></li>
<li class="toctree-l4"><a class="reference internal" href="kernel/kernel-development.html#build-and-install-the-kernel">Build and install the kernel</a></li>
<li class="toctree-l4"><a class="reference internal" href="kernel/kernel-development.html#related-topics">Related topics</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="kernel/kernel-modules.html">Add kernel modules manually</a><ul>
<li class="toctree-l4"><a class="reference internal" href="kernel/kernel-modules.html#overview">Overview</a></li>
<li class="toctree-l4"><a class="reference internal" href="kernel/kernel-modules.html#description">Description</a></li>
<li class="toctree-l4"><a class="reference internal" href="kernel/kernel-modules.html#kernel-module-availability">Kernel module availability</a></li>
<li class="toctree-l4"><a class="reference internal" href="kernel/kernel-modules.html#build-install-and-load-an-out-of-tree-module">Build, install, and load an out-of-tree module</a></li>
<li class="toctree-l4"><a class="reference internal" href="kernel/kernel-modules.html#examples">Examples</a></li>
<li class="toctree-l4"><a class="reference internal" href="kernel/kernel-modules.html#related-topic">Related topic</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="kernel/kernel-modules-dkms.html">Add kernel modules with DKMS</a><ul>
<li class="toctree-l4"><a class="reference internal" href="kernel/kernel-modules-dkms.html#overview">Overview</a></li>
<li class="toctree-l4"><a class="reference internal" href="kernel/kernel-modules-dkms.html#description">Description</a></li>
<li class="toctree-l4"><a class="reference internal" href="kernel/kernel-modules-dkms.html#kernel-module-availability">Kernel module availability</a></li>
<li class="toctree-l4"><a class="reference internal" href="kernel/kernel-modules-dkms.html#install-dkms">Install DKMS</a></li>
<li class="toctree-l4"><a class="reference internal" href="kernel/kernel-modules-dkms.html#build-install-and-load-an-out-of-tree-module">Build, install, and load an out-of-tree module</a></li>
<li class="toctree-l4"><a class="reference internal" href="kernel/kernel-modules-dkms.html#examples">Examples</a></li>
<li class="toctree-l4"><a class="reference internal" href="kernel/kernel-modules-dkms.html#related-topics">Related topics</a></li>
</ul>
</li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="guides.html#stacks">Stacks</a><ul>
<li class="toctree-l3"><a class="reference internal" href="stacks/dars.html">Data Analytics Reference Stack</a><ul>
<li class="toctree-l4"><a class="reference internal" href="stacks/dars.html#the-data-analytics-reference-stack-release">The Data Analytics Reference Stack release</a></li>
<li class="toctree-l4"><a class="reference internal" href="stacks/dars.html#using-the-docker-images">Using the Docker images</a></li>
<li class="toctree-l4"><a class="reference internal" href="stacks/dars.html#building-dars-images">Building DARS images</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="stacks/greengrass.html">Enable AWS Greengrass* and OpenVINO™ toolkit</a><ul>
<li class="toctree-l4"><a class="reference internal" href="stacks/greengrass.html#overview">Overview</a></li>
<li class="toctree-l4"><a class="reference internal" href="stacks/greengrass.html#supported-platforms">Supported platforms</a></li>
<li class="toctree-l4"><a class="reference internal" href="stacks/greengrass.html#install-the-os-on-the-edge-device">Install the OS on the edge device</a></li>
<li class="toctree-l4"><a class="reference internal" href="stacks/greengrass.html#configure-aws-greengrass-group">Configure AWS Greengrass group</a></li>
<li class="toctree-l4"><a class="reference internal" href="stacks/greengrass.html#create-and-package-lambda-function">Create and package Lambda function</a></li>
<li class="toctree-l4"><a class="reference internal" href="stacks/greengrass.html#configure-lambda-function">Configure Lambda function</a></li>
<li class="toctree-l4"><a class="reference internal" href="stacks/greengrass.html#deploy-lambda-function">Deploy Lambda function</a></li>
<li class="toctree-l4"><a class="reference internal" href="stacks/greengrass.html#references">References</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="stacks/dlrs/dlrs.html">Deep Learning Reference Stack</a><ul>
<li class="toctree-l4"><a class="reference internal" href="stacks/dlrs/dlrs.html#overview">Overview</a></li>
<li class="toctree-l4"><a class="reference internal" href="stacks/dlrs/dlrs.html#tensorflow-single-and-multi-node-benchmarks">TensorFlow single and multi-node benchmarks</a></li>
<li class="toctree-l4"><a class="reference internal" href="stacks/dlrs/dlrs.html#pytorch-single-and-multi-node-benchmarks">PyTorch single and multi-node benchmarks</a></li>
<li class="toctree-l4"><a class="reference internal" href="stacks/dlrs/dlrs.html#kubeflow-multi-node-benchmarks">Kubeflow multi-node benchmarks</a></li>
<li class="toctree-l4"><a class="reference internal" href="stacks/dlrs/dlrs.html#use-jupyter-notebook">Use Jupyter Notebook</a></li>
<li class="toctree-l4"><a class="reference internal" href="stacks/dlrs/dlrs.html#uninstallation">Uninstallation</a></li>
<li class="toctree-l4"><a class="reference internal" href="stacks/dlrs/dlrs.html#related-topics">Related topics</a></li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="../tutorials/tutorials.html">Tutorials</a><ul>
<li class="toctree-l2"><a class="reference internal" href="../tutorials/wordpress/wordpress.html">WordPress* on Clear Linux* OS</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/wordpress/web-server-install.html">Set up a LAMP web server on Clear Linux* OS</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../tutorials/wordpress/web-server-install.html#install-apache">Install Apache</a></li>
<li class="toctree-l4"><a class="reference internal" href="../tutorials/wordpress/web-server-install.html#change-the-default-configuration-and-data-directory">Change the default configuration and data directory</a></li>
<li class="toctree-l4"><a class="reference internal" href="../tutorials/wordpress/web-server-install.html#install-php">Install PHP</a></li>
<li class="toctree-l4"><a class="reference internal" href="../tutorials/wordpress/web-server-install.html#install-mariadb">Install MariaDB</a></li>
<li class="toctree-l4"><a class="reference internal" href="../tutorials/wordpress/web-server-install.html#install-phpmyadmin">Install phpMyAdmin</a></li>
<li class="toctree-l4"><a class="reference internal" href="../tutorials/wordpress/web-server-install.html#use-phpmyadmin-to-manage-a-database">Use phpMyAdmin to manage a database</a></li>
<li class="toctree-l4"><a class="reference internal" href="../tutorials/wordpress/web-server-install.html#next-steps">Next steps</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/wordpress/wp-install.html">Set up WordPress* on a LAMP web server</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../tutorials/wordpress/wp-install.html#before-you-begin">Before you begin</a></li>
<li class="toctree-l4"><a class="reference internal" href="../tutorials/wordpress/wp-install.html#create-a-wordpress-server">Create a WordPress server</a></li>
</ul>
</li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../tutorials/flatpak/flatpak.html">Use Flatpak* to install applications on Clear Linux* OS</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/flatpak/flatpak.html#before-you-begin">Before you begin</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../tutorials/flatpak/flatpak.html#install-flatpak-on-your-host-system">Install Flatpak on your host system</a></li>
<li class="toctree-l4"><a class="reference internal" href="../tutorials/flatpak/flatpak.html#install-and-run-the-libreoffice-flatpak-image">Install and run the LibreOffice Flatpak image</a></li>
<li class="toctree-l4"><a class="reference internal" href="../tutorials/flatpak/flatpak.html#launch-libreoffice">Launch LibreOffice</a></li>
</ul>
</li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../tutorials/machine-learning/machine-learning.html">TensorFlow* machine learning on Clear Linux* OS</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/machine-learning/machine-learning.html#prerequisites">Prerequisites</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/machine-learning/machine-learning.html#set-up-a-jupyter-notebook">Set up a Jupyter notebook</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/machine-learning/machine-learning.html#run-the-jupyter-machine-learning-example-code">Run the Jupyter machine learning example code</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/machine-learning/machine-learning.html#related-topics">Related topics</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../tutorials/docker/docker.html">Run Docker* on Clear Linux* OS</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/docker/docker.html#prerequisites">Prerequisites</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/docker/docker.html#install-the-containers-basic-bundle">Install the containers-basic bundle</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/docker/docker.html#integration-with-kata-containers-optional">Integration with Kata Containers* (optional)</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/docker/docker.html#additional-docker-configuration">Additional Docker configuration</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/docker/docker.html#pulling-and-running-an-image-from-docker-hub">Pulling and running an image from Docker Hub</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/docker/docker.html#creating-a-docker-swarm-cluster">Creating a Docker swarm cluster</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/docker/docker.html#related-topics">Related topics</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../tutorials/azure.html">Run Clear Linux* OS using Microsoft Azure CLI 2.0</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/azure.html#install-ms-azure-cli-2-0-on-cl">Install MS Azure CLI 2.0 on Clear Linux OS</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/azure.html#log-into-your-microsoft-azure-account">Log into your Microsoft Azure account</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/azure.html#create-a-ms-azure-resource-group">Create a MS Azure resource group</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/azure.html#create-and-log-into-the-cl-virtual-machine">Create and log into the Clear Linux OS virtual machine</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/azure.html#stop-and-deallocate-the-cl-vm-and-resources">Stop and deallocate the Clear Linux OS VM and resources</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/azure.html#next-steps">Next steps</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../tutorials/hadoop.html">Set up a single node cluster with Hadoop*</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/hadoop.html#prerequisites">Prerequisites</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/hadoop.html#install-apache-hadoop">Install Apache Hadoop</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/hadoop.html#configure-apache-hadoop">Configure Apache Hadoop</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/hadoop.html#configure-your-ssh-key">Configure your SSH key</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/hadoop.html#run-the-hadoop-daemons">Run the Hadoop daemons</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/hadoop.html#run-the-mapreduce-wordcount-example">Run the MapReduce wordcount example</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../tutorials/fmv.html">Use the function multi-version patch generator</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/fmv.html#install-and-configure-a-cl-host-on-bare-metal">Install and configure a Clear Linux OS host on bare metal</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/fmv.html#detect-loop-vectorization-candidates">Detect loop vectorization candidates</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/fmv.html#generate-the-fmv-patch">Generate the FMV patch</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/fmv.html#fft-project-example-using-fftw">FFT project example using FFTW</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../tutorials/aws-web/aws-web.html">Create and launch Clear Linux* OS from Amazon Web Services</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/aws-web/aws-web.html#prerequisites">Prerequisites</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/aws-web/aws-web.html#locate-select-and-launch-the-cl-basic-ami">Locate, select, and launch the Clear Linux OS Basic AMI</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/aws-web/aws-web.html#connect-to-your-clear-linux-os-basic-instance">Connect to your Clear Linux OS Basic instance</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/aws-web/aws-web.html#update-the-cl-instance">Update the Clear Linux OS instance</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/aws-web/aws-web.html#stop-the-cl-instance">Stop the Clear Linux OS instance</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../tutorials/smb/smb.html">Enable simple file sharing with a Windows* machine using Samba*</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/smb/smb.html#prerequisites">Prerequisites</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/smb/smb.html#set-up-file-sharing">Set up file sharing</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/smb/smb.html#map-cl-drive-in-windows">Map Clear Linux OS drive in Windows</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../tutorials/smb/smb-desktop.html">Connect to Windows* shared location from Clear Linux* OS desktop</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/smb/smb-desktop.html#prerequisites">Prerequisites</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/smb/smb-desktop.html#connect-to-windows-shared-location-with-nautilus">Connect to Windows shared location with Nautilus</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../tutorials/spark.html">Set up a standalone cluster system using Apache* Spark*</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/spark.html#prerequisites">Prerequisites</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/spark.html#install-apache-spark">Install Apache Spark</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/spark.html#configure-apache-spark">Configure Apache Spark</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/spark.html#start-the-master-server-and-a-worker-daemon">Start the master server and a worker daemon</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/spark.html#run-the-spark-wordcount-example">Run the Spark wordcount example</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../tutorials/kata.html">Install Kata Containers*</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/kata.html#prerequisites">Prerequisites</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/kata.html#id1">Install Kata Containers</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/kata.html#run-kata-containers">Run Kata Containers</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/kata.html#more-information-about-docker">More information about Docker</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../tutorials/kata.html#troubleshooting">Troubleshooting</a></li>
</ul>
</li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../tutorials/kata_migration.html">Migrate Clear Containers to Kata Containers*</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/kata_migration.html#stop-clear-containers-instances">Stop Clear Containers instances</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/kata_migration.html#manually-migrate-customized-configuration-files">Manually migrate customized configuration files</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/kata_migration.html#enable-kata-containers-as-default">Enable Kata Containers as default</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/kata_migration.html#run-kata-containers">Run Kata Containers</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../tutorials/kubernetes/kubernetes.html">Run Kubernetes*</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/kubernetes/kubernetes.html#prerequisites">Prerequisites</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/kubernetes/kubernetes.html#install-kubernetes-and-cri-runtimes">Install Kubernetes and CRI runtimes</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/kubernetes/kubernetes.html#configure-kubernetes">Configure Kubernetes</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/kubernetes/kubernetes.html#configure-and-run-kubernetes">Configure and run Kubernetes</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../tutorials/kubernetes/kubernetes.html#configure-and-run-cri-o-kata-runtime">Configure and run CRI-O + kata-runtime</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/kubernetes/kubernetes.html#install-pod-network-add-on">Install pod network add-on</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/kubernetes/kubernetes.html#use-your-cluster">Use your cluster</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/kubernetes/kubernetes.html#related-topics">Related topics</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/kubernetes/kubernetes.html#cloud-native-setup-automation-optional">Cloud native setup automation (optional)</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/kubernetes/kubernetes.html#package-configuration-customization-optional">Package configuration customization (optional)</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/kubernetes/kubernetes.html#proxy-configuration-optional">Proxy configuration (optional)</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/kubernetes/kubernetes.html#next-steps">Next steps</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/kubernetes/kubernetes.html#troubleshooting">Troubleshooting</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../tutorials/kubernetes/kubernetes-bp.html">Kubernetes Best Practices on Clear Linux OS</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/kubernetes/kubernetes-bp.html#use-swupd-to-update-clusters">Use swupd to update clusters</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/kubernetes/kubernetes-bp.html#prerequisites">Prerequisites</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/kubernetes/kubernetes-bp.html#update-the-control-plane">Update the control plane</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/kubernetes/kubernetes-bp.html#update-worker-nodes">Update worker nodes</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../tutorials/yubikey-u2f.html">Enable YubiKey U2F Support</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/yubikey-u2f.html#prerequisites">Prerequisites</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/yubikey-u2f.html#enable-linux-udev-rules-for-yubikey">Enable Linux udev rules for YubiKey</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/yubikey-u2f.html#enable-u2f-in-mozilla-firefox">Enable U2F in Mozilla Firefox</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/yubikey-u2f.html#related-topics">Related topics</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../tutorials/nvidia.html">Install NVIDIA* Drivers</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/nvidia.html#prerequisites">Prerequisites</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/nvidia.html#install-dkms">Install DKMS</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/nvidia.html#download-and-install-the-nvidia-drivers">Download and install the NVIDIA drivers</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../tutorials/nvidia.html#download-the-nvidia-drivers-for-linux">Download the NVIDIA drivers for Linux</a></li>
<li class="toctree-l4"><a class="reference internal" href="../tutorials/nvidia.html#disable-the-nouveau-driver">Disable the nouveau driver</a></li>
<li class="toctree-l4"><a class="reference internal" href="../tutorials/nvidia.html#configure-alternative-software-paths">Configure alternative software paths</a></li>
<li class="toctree-l4"><a class="reference internal" href="../tutorials/nvidia.html#install-the-nvidia-drivers">Install the NVIDIA drivers</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/nvidia.html#updating-the-nvidia-drivers">Updating the NVIDIA drivers</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/nvidia.html#uninstalling-the-nvidia-drivers">Uninstalling the NVIDIA drivers</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/nvidia.html#debugging-installation-of-nvidia-drivers">Debugging installation of NVIDIA drivers</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/nvidia.html#additional-resources">Additional resources</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../tutorials/redis.html">Run Redis on Clear Linux* OS</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/redis.html#prerequisites">Prerequisites</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/redis.html#install-the-redis-bundle">Install the redis bundle</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/redis.html#start-the-redis-server">Start the redis-server</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/redis.html#example-1-use-the-redis-cli-and-try-commands">Example 1: Use the redis-cli and try commands</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/redis.html#example-2-run-the-cl-redis-docker-image">Example 2: Run the Clear Linux OS redis docker image</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/redis.html#next-steps">Next Steps</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../tutorials/tutorial-proxy.html">Setting up proxy</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/tutorial-proxy.html#prerequisites">Prerequisites</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/tutorial-proxy.html#shells-and-programs-in-a-desktop-session">Shells and programs in a desktop session</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../tutorials/tutorial-proxy.html#terminal">Terminal</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/tutorial-proxy.html#wget">wget</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/tutorial-proxy.html#system-service-docker">System service (Docker)</a></li>
<li class="toctree-l3"><a class="reference internal" href="../tutorials/tutorial-proxy.html#git-over-ssh">git over ssh</a></li>
</ul>
</li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="../reference/reference.html">Reference</a><ul>
<li class="toctree-l2"><a class="reference internal" href="../reference/compatible-hardware.html">Compatible Hardware</a></li>
<li class="toctree-l2"><a class="reference internal" href="../reference/bundle-commands.html">Useful bundle commands</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../reference/bundle-commands.html#additional-information">Additional information</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../reference/bundles/bundles.html">Available bundles</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../reference/bundles/bundles.html#bundle-list">Bundle list</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../reference/bundles/openssh-server.html">openssh-server</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../reference/bundles/openssh-server.html#prerequisites">Prerequisites</a></li>
<li class="toctree-l3"><a class="reference internal" href="../reference/bundles/openssh-server.html#change-default-port">Change default port</a></li>
<li class="toctree-l3"><a class="reference internal" href="../reference/bundles/openssh-server.html#enable-sftp">Enable SFTP</a></li>
<li class="toctree-l3"><a class="reference internal" href="../reference/bundles/openssh-server.html#enable-root-login">Enable root login</a></li>
<li class="toctree-l3"><a class="reference internal" href="../reference/bundles/openssh-server.html#enable-x11-forwarding">Enable X11-forwarding</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../reference/collaboration/collaboration.html">Documentation guidelines</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../reference/collaboration/collaboration.html#contribution-guidelines">Contribution guidelines</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../reference/collaboration/writing-guide.html">Writing guide: Describes the style we use to keep our documents clear and concise.</a></li>
<li class="toctree-l4"><a class="reference internal" href="../reference/collaboration/structure-formatting.html">Structure and formatting guide: Explains how we organize and format content, using reStructuredText and Sphinx.</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="../reference/collaboration/collaboration.html#how-to-contribute">How to contribute</a></li>
<li class="toctree-l3"><a class="reference internal" href="../reference/collaboration/collaboration.html#contribute-via-github">Contribute via GitHub</a></li>
<li class="toctree-l3"><a class="reference internal" href="../reference/collaboration/collaboration.html#references">References</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../reference/system-requirements.html">Recommended minimum system requirements</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../reference/system-requirements.html#installer-requirements">Installer requirements</a></li>
<li class="toctree-l3"><a class="reference internal" href="../reference/system-requirements.html#id1">System requirements</a></li>
<li class="toctree-l3"><a class="reference internal" href="../reference/system-requirements.html#recommended-configurations">Recommended configurations</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../reference/image-types.html">Clear Linux* OS image types</a></li>
<li class="toctree-l2"><a class="reference internal" href="../reference/reference.html#clear-linux-concepts">Clear Linux concepts</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../concepts/autospec-about.html">Autospec</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../concepts/autospec-about.html#how-autospec-works">How autospec works</a></li>
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<li class="toctree-l4"><a class="reference internal" href="../concepts/autospec-about.html#related-topics">Related topics</a></li>
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<li class="toctree-l4"><a class="reference internal" href="../concepts/bundles-about.html#next-steps">Next steps</a></li>
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<li class="toctree-l3"><a class="reference internal" href="../concepts/mixer-about.html">Mixer</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../concepts/mixer-about.html#create-a-mix">Create a mix</a></li>
<li class="toctree-l4"><a class="reference internal" href="../concepts/mixer-about.html#related-topics">Related topics</a></li>
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<li class="toctree-l3"><a class="reference internal" href="../concepts/swupd-about.html">swupd: software updater</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../concepts/swupd-about.html#versioning">Versioning</a></li>
<li class="toctree-l4"><a class="reference internal" href="../concepts/swupd-about.html#updating">Updating</a></li>
<li class="toctree-l4"><a class="reference internal" href="../concepts/swupd-about.html#bundles">Bundles</a></li>
</ul>
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<li class="toctree-l3"><a class="reference internal" href="../concepts/telemetry-about.html">Telemetrics</a><ul>
<li class="toctree-l4"><a class="reference internal" href="../concepts/telemetry-about.html#architecture">Architecture</a></li>
<li class="toctree-l4"><a class="reference internal" href="../concepts/telemetry-about.html#next-steps">Next steps</a></li>
</ul>
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<li class="toctree-l3"><a class="reference internal" href="clear/stateless.html">Stateless</a><ul>
<li class="toctree-l4"><a class="reference internal" href="clear/stateless.html#file-level-separation">File-level separation</a></li>
<li class="toctree-l4"><a class="reference internal" href="clear/stateless.html#software-configuration">Software configuration</a></li>
<li class="toctree-l4"><a class="reference internal" href="clear/stateless.html#system-reset">System reset</a></li>
<li class="toctree-l4"><a class="reference internal" href="clear/stateless.html#additional-information">Additional information</a></li>
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<li class="toctree-l3"><a class="reference internal" href="clear/security.html">OS Security</a><ul>
<li class="toctree-l4"><a class="reference internal" href="clear/security.html#security-in-updates">Security in updates</a></li>
<li class="toctree-l4"><a class="reference internal" href="clear/security.html#security-in-software">Security in software</a></li>
<li class="toctree-l4"><a class="reference internal" href="clear/security.html#security-in-system-design">Security in system design</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../FAQ/faq.html#general">General</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../FAQ/faq.html#why-did-you-make-another-distro">Why did you make another distro?</a></li>
<li class="toctree-l3"><a class="reference internal" href="../FAQ/faq.html#can-other-distros-copy-cl-improvements">Can other distros copy Clear Linux OS improvements?</a></li>
<li class="toctree-l3"><a class="reference internal" href="../FAQ/faq.html#how-often-do-you-update">How often do you update?</a></li>
<li class="toctree-l3"><a class="reference internal" href="../FAQ/faq.html#is-telemetry-required">Is telemetry required?</a></li>
<li class="toctree-l3"><a class="reference internal" href="../FAQ/faq.html#what-is-the-default-firewall">What is the default firewall?</a></li>
<li class="toctree-l3"><a class="reference internal" href="../FAQ/faq.html#where-are-the-files-that-i-usually-see-under-etc-like-fstab">Where are the files that I usually see under /etc like fstab?</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../FAQ/faq.html#software-packages">Software packages</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../FAQ/faq.html#how-is-software-installed-and-updated">How is software installed and updated?</a></li>
<li class="toctree-l3"><a class="reference internal" href="../FAQ/faq.html#does-cl-use-rpms-like-other-distros">Does Clear Linux OS use RPMs like other distros?</a></li>
<li class="toctree-l3"><a class="reference internal" href="../FAQ/faq.html#can-i-install-a-software-package-from-another-os-on-cl">Can I install a software package from another OS on Clear Linux OS?</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../FAQ/faq.html#software-availability">Software availability</a><ul>
<li class="toctree-l3"><a class="reference internal" href="../FAQ/faq.html#what-software-is-available-on-cl">What software is available on Clear Linux OS?</a></li>
<li class="toctree-l3"><a class="reference internal" href="../FAQ/faq.html#is-google-chrome-available">Is Google* Chrome* available?</a></li>
<li class="toctree-l3"><a class="reference internal" href="../FAQ/faq.html#is-ffmpeg-available">Is FFmpeg available?</a></li>
<li class="toctree-l3"><a class="reference internal" href="../FAQ/faq.html#is-zfs-available">Is ZFS* available?</a></li>
<li class="toctree-l3"><a class="reference internal" href="../FAQ/faq.html#can-you-add-a-driver-that-i-need">Can you add a driver that I need?</a></li>
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<div class="section" id="deploy-at-scale">
<span id="id1"></span><h1>Deploy at Scale</h1>
<p>This guide describes deployment considerations and strategies when deploying
Clear Linux* OS at scale in your environment.</p>
<div class="contents local topic" id="contents">
<ul class="simple">
<li><a class="reference internal" href="#overview" id="id3">Overview</a></li>
<li><a class="reference internal" href="#pick-a-usage-and-update-strategy" id="id4">Pick a usage and update strategy</a></li>
<li><a class="reference internal" href="#pick-an-image-distribution-strategy" id="id5">Pick an image distribution strategy</a></li>
<li><a class="reference internal" href="#considerations-with-stateless-systems" id="id6">Considerations with stateless systems</a></li>
</ul>
</div>
<div class="section" id="overview">
<h2><a class="toc-backref" href="#id3">Overview</a></h2>
<p>In this guide the term <em>endpoint</em> refers to a system targeted for Clear Linux OS
installation, whether that is a datacenter system or unit deployed in field.</p>
<div class="admonition note">
<p class="first admonition-title">Note</p>
<p>This guide is not a replacement or blueprint for designing your own IT
operating environment.</p>
<p>Implementation details for a scale deployment are beyond the scope of this
guide.</p>
<p class="last">Your Clear Linux OS deployment should complement your existing environment and
available tools. It is assumed core IT dependencies of your environment,
such as your network, are healthy and scaled to suit the deployment.</p>
</div>
</div>
<div class="section" id="pick-a-usage-and-update-strategy">
<h2><a class="toc-backref" href="#id4">Pick a usage and update strategy</a></h2>
<p>Different business scenarios call for different deployment methodologies.
Clear Linux OS offers the flexibility to continue consuming the upstream Clear Linux OS
distribution or the option to fork away from the Clear Linux OS distribution and
act as your own <abbr title="Operating System Vendor">OSV</abbr>.</p>
<p>Below is an overview of some considerations.</p>
<div class="section" id="create-your-own-linux-distribution-mix">
<h3>Create your own Linux distribution (mix)</h3>
<p>This approach forks away from the Clear Linux OS upstream and has you act as your own
<abbr title="Operating System Vendor">OSV</abbr> by leveraging the <a class="reference internal" href="clear/mixer.html#mixer"><span class="std std-ref">mixer</span></a> process to
create customized images based on Clear Linux OS. This is a level of responsibility
that requires having more infrastructure and processes to adopt. In return,
this approach <em>offers you a high degree of control and customization</em>. Consider:</p>
<ul>
<li><p class="first">Development systems that generate bundles and updates should have
sufficient performance for the task and be separate from the swupd update
webservers that serve update content to production machines.</p>
</li>
<li><p class="first">swupd update webservers that serve update content to production machines
should be appropriately scaled. Specific implementation details for a scalable,
resilient web server are beyond the scope of this document.</p>
<p>(See <a class="reference internal" href="clear/mixer.html#mixer"><span class="std std-ref">mixer</span></a> for more information about update servers.)</p>
</li>
</ul>
</div>
<div class="section" id="adopt-an-agile-methodology">
<h3>Adopt an agile methodology</h3>
<p>The cloud, and other scaled deployments, are all about flexibility and speed.
It only makes sense that any Clear Linux OS deployment strategy should follow suit.</p>
<p>Manually rebuilding your own bundles or mix for every release is not
sustainable at a large scale. A Clear Linux OS deployment pipeline should be agile
enough to validate and produce new versions with speed. Whether or not those
updates actually make their way to your production can be separate
business decision. However this <em>ability to frequently roll new versions</em> of
software to your endpoints is an important prerequisite.</p>
<p>You own the validation and lifecycle of the OS and should treat it like any
other software development lifecycle. Below are some pointers:</p>
<ul class="simple">
<li>Thoroughly understand the custom software packages that you will need to
integrate with Clear Linux OS and maintain along with their dependencies.</li>
<li>Setup a path to production for building Clear Linux OS based images. At minimum this
should include:<ul>
<li>A development clr-on-clr environment to test building packages and
bundles for Clear Linux OS systems.</li>
<li>A pre-production environment to deploy Clear Linux OS versions to before
production</li>
</ul>
</li>
<li>Employ a continuous integration and continuous deployment (CI/CD)
philosophy in order to:<ul>
<li>Automatically pull custom packages as they are updated from their
upstream projects or vendors.</li>
<li>Generate Clear Linux OS bundles and potentially bootable images with your
customizations, if any.</li>
<li>Measure against metrics and indicators which are relevant to your
business (e.g. performance, power, etc) from release to release.</li>
<li>Integrate with your organization’s governance processes, such as change
control.</li>
</ul>
</li>
</ul>
</div>
<div class="section" id="versioning-infrastructure">
<h3>Versioning infrastructure</h3>
<p>Clear Linux OS version numbers are very important as they apply to the whole
infrastructure stack from OS components to libraries and applications.</p>
<p>Good record keeping is important, so you should keep a detailed registry and
history of previously deployed versions and their contents.</p>
<p>With a glance at the Clear Linux OS version numbers deployed, you should be able to
tell if your Clear systems are patched against a particular security
vulnerability or incorporate a critical new feature.</p>
</div>
</div>
<div class="section" id="pick-an-image-distribution-strategy">
<h2><a class="toc-backref" href="#id5">Pick an image distribution strategy</a></h2>
<p>Once you have decided on a usage and update strategy, you should understand
<em>how</em> Clear Linux OS will be deployed to your endpoints. In a large scale deployment,
interactive installers should be avoided in favor of automated installations
or prebuilt images.</p>
<p>There are many well-known ways to install an operating system at scale. Each
have their own benefits, and one may lend itself easier in your environment
depending on the resources available to you.</p>
<p>See the available <a class="reference internal" href="../reference/image-types.html#image-types"><span class="std std-ref">Clear Linux* OS image types</span></a>.</p>
<p>Below are some common ways to install Clear Linux OS to systems at scale:</p>
<div class="section" id="bare-metal">
<h3>Bare metal</h3>
<p>Preboot Execution Environments (PXE) or other out-of-band booting options are
one way to distribute Clear Linux OS to physical bare metal systems on a LAN.</p>
<p>This option works well if your customizations are fairly small in size
and infrastructure can be stateless.</p>
<p>The Clear Linux OS <a class="reference external" href="https://clearlinux.org/downloads/">Downloads</a> page offers a live image that can be deployed as
a PXE boot server if one doesn’t already exist in your environment. Also see
documentation on how to <a class="reference internal" href="../get-started/bare-metal-install-server/bare-metal-install-server.html#bare-metal-install-server"><span class="std std-ref">Install Clear Linux* OS on bare metal with live server</span></a>.</p>
</div>
<div class="section" id="cloud-instances-or-virtual-machines">
<h3>Cloud instances or virtual machines</h3>
<p>Image templates in the form of cloneable disks are an effective way to
distribute Clear Linux OS for virtual machine environments, whether on-premises or
hosted by a Cloud Solution Provider (CSP).</p>
<p>When used in concert with cloud VM migration features, this can be a good option
for allowing your applications a degree of high availability and workload
mobility; VMs can be restarted on a cluster of hypervisor host or moved between
datacenters transparently.</p>
<p>The Clear Linux OS <a class="reference external" href="https://clearlinux.org/downloads/">Downloads</a> page offers example prebuilt VM images and is readily
available on popular CSPs. Also see documentation on how to
<a class="reference internal" href="../get-started/get-started.html#virtual-machine-install"><span class="std std-ref">Install in a virtual machine</span></a>.</p>
</div>
<div class="section" id="containers">
<h3>Containers</h3>
<p>Containerization platforms allow images to be pulled from a repository and
deployed repeatedly as isolated containers.</p>
<p>Containers with a Clear Linux OS image can be a good option to blueprint and ship
your application, including all its dependencies, as an artifact while
allowing you or your customers to dynamically orchestrate and scale
applications.</p>
<p>Clear Linux OS is capable of running a Docker host, has a container image which can
be pulled from DockerHub, or can be built as a customized container.
For more information visit the <a class="reference external" href="https://clearlinux.org/downloads/containers">Containers</a> page.</p>
</div>
</div>
<div class="section" id="considerations-with-stateless-systems">
<h2><a class="toc-backref" href="#id6">Considerations with stateless systems</a></h2>
<p>An important Clear Linux OS concept is statelessness and partitioning of system data
from user data. This concept can change the way you think about an at scale
deployment.</p>
<div class="section" id="backup-strategy">
<h3>Backup strategy</h3>
<p>A Clear Linux OS system and its infrastructure should be considered a commodity and
be easily reproducible. Avoid focusing on backing up the operating system
itself or default values.</p>
<p>Instead, focus on backing up what’s important and unique - the application
and data. In other words, only focus on backing up critical areas like
<code class="file docutils literal notranslate"><span class="pre">/home</span></code>, <code class="file docutils literal notranslate"><span class="pre">/etc</span></code>, and <code class="file docutils literal notranslate"><span class="pre">/var</span></code>.</p>
</div>
<div class="section" id="meaningful-logging-telemetry">
<h3>Meaningful logging &amp; telemetry</h3>
<p>Offload logging and telemetry from endpoints to external servers, so it is
persistent and can be accessed on another server when an issue occurs.</p>
<ul>
<li><p class="first">Remote syslogging in Clear Linux OS is available through the
<a class="reference external" href="https://www.freedesktop.org/software/systemd/man/systemd-journal-remote.service.html">systemd-journal-remote.service</a></p>
</li>
<li><p class="first">Clear Linux OS offers a <a class="reference internal" href="telemetrics/telem-guide.html#telem-guide"><span class="std std-ref">Telemetrics</span></a>, which can be a powerful tool
for a large deployment to quickly crowdsource issues of interest. Take
advantage of this feature with careful consideration of the target audience
and the kind of data that would be valuable, and expose events
appropriately.</p>
<p>Like any web server, the telemetry server should be appropriately scaled and
resilient. Specific implementation details for a scalable, resilient web
server are beyond the scope of this document.</p>
</li>
</ul>
</div>
<div class="section" id="orchestration-and-configuration-management">
<h3>Orchestration and configuration management</h3>
<p>In cloud environments, where systems can be ephemeral, being able to
configure and maintain generic instances is valuable.</p>
<p>Clear Linux OS offers an efficient cloud-init style solution, <a class="reference external" href="https://github.com/clearlinux/micro-config-drive">micro-config-drive</a>,
through the <em>os-cloudguest</em> bundles which allow you to configure many Day 1
tasks such as setting hostname, creating users, or placing
SSH keys in an automated way at boot. For more information on
automating configuration during deployment of Clear Linux OS endpoints see the
<a class="reference internal" href="maintenance/bulk-provision.html#bulk-provision"><span class="std std-ref">Bulk provision</span></a> guide.</p>
<p>A configuration management tool is useful for maintaining consistent system
and application-level configuration. Ansible* is offered through the
<em>sysadmin-hostmgmt</em> bundle as a configuration management and automation
tool.</p>
</div>
<div class="section" id="cloud-native-applications">
<h3>Cloud-native applications</h3>
<p>An Infrastructure OS can design for good behavior, but it is ultimately up
to applications to make agile design choices. Applications deployed
on Clear Linux OS should aim to be host-aware but not depend on any specific host to
run. References should be relative and dynamic when possible.</p>
<p>The application architecture should incorporate an appropriate tolerance for
infrastructure outages. Don’t just keep stateless design as a noted feature.
Continuously test its use; Automate its use by redeploying Clear Linux OS and
application on new hosts. This naturally minimizes configuration drift,
challenges your monitoring systems, and business continuity plans.</p>
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