eecd44d335
This commit adds support for cri-o by changing the binary initially used to run CNI plugin to runc and falling back to docker only in case it's not available. Also DevStack support for installing and configuring Kubernetes with cri-o is added. Implements: blueprint crio-support Depends-On: Ib049d66058429e499f5d0932c4a749820bec73ff Depends-On: Ic3c7d355a455298f43e37fb2aceddfd1e7eefaf2 Change-Id: I081edf0dbd4eb57826399c4820376381950080ed
70 lines
2.0 KiB
Bash
Executable File
70 lines
2.0 KiB
Bash
Executable File
#!/bin/bash -ex
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function cleanup() {
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rm -f "/etc/cni/net.d/10-kuryr.conf"
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rm -f "/opt/cni/bin/kuryr-cni"
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}
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function deploy() {
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POD_NAMESPACE=$(</var/run/secrets/kubernetes.io/serviceaccount/namespace)
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# Write the script to a file.
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cat > /kuryr-cni << EOF
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#!/bin/bash -x
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finder="
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import json
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import sys
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mode = 'docker' if len(sys.argv) == 1 else sys.argv[1]
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if mode == 'docker':
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label_key = 'Labels'
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id_key = 'Id'
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else:
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label_key = 'annotations'
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id_key = 'id'
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containers=json.load(sys.stdin)
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# Looping over all the containers until we find the right one. We print it.
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for container in containers:
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if (label_key in container and
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container[label_key].get('io.kubernetes.pod.name') == '${KURYR_CNI_POD_NAME}' and
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container[label_key].get('io.kubernetes.pod.namespace') == '${POD_NAMESPACE}' and
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container[label_key].get('io.kubernetes.container.name') != 'POD'):
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print(container[id_key])
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break
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"
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envs=(\$(env | grep ^CNI_))
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if command -v runc > /dev/null; then
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# We have runc binary, let's see if that works.
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CONTAINERID=\`runc list -f json 2> /dev/null | python -c "\${finder}" runc\`
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if [[ ! -z \${CONTAINERID} ]]; then
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exec runc exec \${envs[@]/#/--env } "\${CONTAINERID}" kuryr-cni --config-file /etc/kuryr/kuryr.conf
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fi
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fi
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# Fall back to using Docker binary.
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# TODO(dulek): We might want to fetch socket path from config.
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CONTAINERID=\`curl --unix-socket /var/run/docker.sock http://v1.24/containers/json 2> /dev/null | python -c "\${finder}" docker\`
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docker exec \${envs[@]/#/--env } -i "\${CONTAINERID}" kuryr-cni --config-file /etc/kuryr/kuryr.conf
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EOF
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# Copy the script into the designated location
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cp /kuryr-cni "/opt/cni/bin/kuryr-cni"
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chmod +x /opt/cni/bin/kuryr-cni
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cp /opt/kuryr-kubernetes/etc/cni/net.d/* /etc/cni/net.d
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}
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cleanup
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deploy
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# Start CNI daemon if required
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if [ "$CNI_DAEMON" == "True" ]; then
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exec kuryr-daemon --config-file /etc/kuryr/kuryr.conf
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else
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exec sleep infinity
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fi
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