60 lines
2.1 KiB
Bash
60 lines
2.1 KiB
Bash
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#!/bin/bash
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# Script to install kubestack CNI on a Kubernetes host.
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# - Expects the host CNI binary path to be mounted at /host/opt/cni/bin.
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# - Expects the host CNI network config path to be mounted at /host/etc/cni/net.d.
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# - Expects the desired CNI config in the /host/etc/cni/net.d/10-kubestack.conf.
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# - Expects the desired kubestack config in the KUBESTACK_CONFIG env variable.
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# Ensure all variables are defined.
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set -u
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# Clean up any existing binaries / config / assets.
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rm -f /host/opt/cni/bin/kubestack
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rm -f /host/etc/cni/net.d/10-kubestack.conf
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rm -f /etc/kubestack.conf
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# Place the new binaries if the directory is writeable.
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if [ -w "/host/opt/cni/bin/" ]; then
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cp /opt/cni/bin/kubestack /host/opt/cni/bin/
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echo "Wrote kubestack CNI binaries to /host/opt/cni/bin/"
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echo "CNI plugin version: $(/host/opt/cni/bin/kubestack -v)"
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fi
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# Place the new CNI network config if the directory is writeable.
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if [ -w "/host/etc/cni/net.d/" ]; then
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cp /etc/cni/net.d/10-kubestack.conf /host/etc/cni/net.d/
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echo "Wrote CNI network config to /host/etc/cni/net.d/"
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echo "CNI config: $(cat /host/etc/cni/net.d/10-kubestack.conf)"
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fi
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TMP_CONF='/kubestack.conf.tmp'
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# Check environment variables before any real actions.
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for i in 'AUTH_URL' 'USERNAME' 'PASSWORD' 'TENANT_NAME' 'REGION' 'EXT_NET_ID' 'PLUGIN_NAME' 'INTEGRATION_BRIDGE';do
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if [ "${!i}" ];then
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echo "environment variable $i = ${!i}"
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else
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echo "environment variable $i has not been setted or is empty,exit..."
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exit
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fi
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done
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# Insert parameters.
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sed -i s~_AUTH_URL_~${AUTH_URL:-}~g $TMP_CONF
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sed -i s/_USERNAME_/${USERNAME:-}/g $TMP_CONF
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sed -i s/_PASSWORD_/${PASSWORD:-}/g $TMP_CONF
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sed -i s/_TENANT_NAME_/${TENANT_NAME:-}/g $TMP_CONF
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sed -i s/_REGION_/${REGION:-}/g $TMP_CONF
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sed -i s/_EXT_NET_ID_/${EXT_NET_ID:-}/g $TMP_CONF
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sed -i s/_PLUGIN_NAME_/${PLUGIN_NAME:-}/g $TMP_CONF
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sed -i s/_INTEGRATION_BRIDGE_/${INTEGRATION_BRIDGE:-}/g $TMP_CONF
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# Move the temporary kubestack config into place.
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KUBESTACK_CONFIG_PATH='/host/etc/kubestack.conf'
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mv $TMP_CONF $KUBESTACK_CONFIG_PATH
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echo "Wrote kubestack config: $(cat ${KUBESTACK_CONFIG_PATH})"
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while true; do
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sleep 3600;
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done
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