mirror of
https://github.com/clearlinux/cloud-native-setup.git
synced 2026-08-28 21:35:38 +00:00
David Lyle
50553aa7bb
As part of the existing json file, there is a 'kubectl get nodes' json dump. Instead of collecting this information each pod launch, use the data already gathered. This data is immutable during the test runs. This greatly improves the overall runtime of the test script by preventing expensive kubectl execs per node per iteration. Signed-off-by: David Lyle <dklyle0@gmail.com>
47 lines
1.5 KiB
Bash
47 lines
1.5 KiB
Bash
#!/bin/bash
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# Copyright (c) 2019 Intel Corporation
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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THIS_FILE=$(readlink -f ${BASH_SOURCE[0]})
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COLLECTD_DIR=${THIS_FILE%/*}
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collectd_pod="collectd"
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init_stats() {
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local wait_time=$1
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# create collectd-config configmap
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kubectl create configmap collectd-config --from-file=${COLLECTD_DIR}/collectd.conf
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# Launch our stats gathering pod
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kubectl apply -f ${COLLECTD_DIR}/${collectd_pod}.yaml
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kubectl rollout status --timeout=${wait_time}s daemonset/${collectd_pod}
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# attempting to provide buffer for collectd to be installed and running,
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# and CPU collection to build adequate history
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sleep 12
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}
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cleanup_stats() {
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local delete_wait_time=$1
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# attempting to provide buffer for collectd CPU collection to record adequate history
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sleep 6
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# get logs before shutting down stats daemonset
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while read -u 3 name node; do
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kubectl exec -ti $name -- sh -c "cd /opt/collectd; tar -czvf localhost.tar.gz localhost"
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# make a backup on the host in-case collection fail
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kubectl exec -ti $name -- sh -c "mkdir -p /mnt/opt/collectd"
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kubectl exec -ti $name -- sh -c "cp /opt/collectd/localhost.tar.gz /mnt/opt/collectd/localhost.tar.gz"
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kubectl cp $name:/opt/collectd/localhost.tar.gz ${RESULT_DIR}/${node}.tar.gz
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done 3< <(kubectl get pods --selector name=collectd-pods -o json | jq -r '.items[] | "\(.metadata.name) \(.spec.nodeName)"')
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kubectl delete daemonset --wait=true --timeout=${delete_wait_time}s "${collectd_pod}" || true
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# remove configmap
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kubectl delete configmap collectd-config
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}
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