diff --git a/openjdk/README.md b/openjdk/README.md index 9247bff..54c215f 100644 --- a/openjdk/README.md +++ b/openjdk/README.md @@ -1,37 +1,91 @@ -openjdk -========== -This provides a Clear Linux* openjdk container +# Clear Linux* OS `openjdk` container image -Build ------ -``` -docker build -t clearlinux/openjdk . -``` + +## What is this image? -Or just pull it from Dockerhub ---------------------------- -``` -docker pull clearlinux/openjdk -``` +`clearlinux/openjdk` is a Docker image with `openjdk` running on top of the +[official clearlinux base image](https://hub.docker.com/_/clearlinux). -Compile your java app inside the Docker container ------------------------ -``` -docker run --rm -it --name myapp -v "$PWD":/usr/src/myapp -w /usr/src/myapp clearlinux/openjdk javac myapp.java -``` + +> [OpenJDK](https://openjdk.java.net/) is a free and open-source implementation of the +> Java Platform, Standard Edition (Java SE). -Run your java app instance ------------------------ -``` -docker run --rm -it --name myapp -v "$PWD":/usr/src/myapp -w /usr/src/myapp clearlinux/openjdk java myapp -``` +For other Clear Linux* OS +based container images, see: https://hub.docker.com/u/clearlinux -Details of how-to ---------------------- -- Please refer to the docker official openjdk image [page](https://hub.docker.com/_/openjdk). +## Why use a clearlinux based image? -Extra Build ARGs ----------------- -- ``swupd_args`` Specifies [SWUPD](https://github.com/clearlinux/swupd-client/blob/master/docs/swupd.1.rst#options) flags + +> [Clear Linux* OS](https://clearlinux.org/) is an open source, rolling release +> Linux distribution optimized for performance and security, from the Cloud to +> the Edge, designed for customization, and manageability. -Default build args in Docker are on: https://docs.docker.com/engine/reference/builder/#arg +Clear Linux* OS based container images use: +* Optimized libraries that are compiled with latest compiler versions and + flags. +* Software packages that follow upstream source closely and update frequently. +* An aggressive security model and best practices for CVE patching. +* A multi-staged build approach to keep a reduced container image size. +* The same container syntax as the official images to make getting started + easy. + +To learn more about Clear Linux* OS, visit: https://clearlinux.org. + + +## Deployment: + +### Deploy with Docker +The easiest way to get started with this image is by simply pulling it from +Docker Hub. + +*Note: This container uses the same syntax as the [official openjdk image](https://hub.docker.com/_/openjdk). + + +1. Pull the image from Docker Hub: + ``` + docker pull clearlinux/openjdk + ``` + +2. Start a container using the examples below: + + ``` + docker run --rm -it --name myapp -v "$PWD":/usr/src/myapp -w /usr/src/myapp clearlinux/openjdk java myapp + ``` + + +### Deploy with Kubernetes + + +## Build and modify: + +The Dockerfiles for all Clear Linux* OS based container images are available at +https://github.com/clearlinux/dockerfiles. These can be used to build and +modify the container images. + +1. Clone the clearlinux/dockerfiles repository. + ``` + git clone https://github.com/clearlinux/dockerfiles.git + ``` + +2. Change to the directory of the application: + ``` + cd openjdk/ + ``` + +3. Build the container image: + ``` + docker build -t clearlinux/openjdk . + ``` + + Refer to the Docker documentation for [default build arguments](https://docs.docker.com/engine/reference/builder/#arg). + Additionally: + + - `swupd_args` - specifies arguments to pass to the Clear Linux* OS software + manager. See the [swupd man pages](https://github.com/clearlinux/swupd-client/blob/master/docs/swupd.1.rst#options) + for more information. + + +## Licenses + +All licenses for the Clear Linux* Project and distributed software can be found +at https://clearlinux.org/terms-and-policies