mirror of
https://github.com/edgelesssys/constellation.git
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91 lines
3.5 KiB
YAML
91 lines
3.5 KiB
YAML
name: Constellation recover
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description: "Recover a Constellation cluster with an unavailable control plane."
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inputs:
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controlNodesCount:
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description: "The amount of control plane nodes in the cluster."
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required: true
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kubeconfig:
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description: "The kubeconfig for the cluster."
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required: true
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runs:
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using: "composite"
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steps:
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- name: Restart worker node
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shell: bash
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env:
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KUBECONFIG: ${{ inputs.kubeconfig }}
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run: |
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WORKER_NODE=$(kubectl get nodes --selector='!node-role.kubernetes.io/control-plane' -o json | jq '.items[0].metadata.name' -r)
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echo "Disabling the join-service and waiting for the node to be unresponsive"
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kubectl patch daemonset -n kube-system join-service -p '{"spec":{"template":{"spec":{"nodeSelector":{"some-tag":""}}}}}'
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kubectl debug node/$WORKER_NODE --image=ubuntu -- bash -c "echo reboot > reboot.sh && chroot /host < reboot.sh"
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kubectl wait --for=condition=Ready=Unknown --timeout=10m node/$WORKER_NODE
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echo "Re-enabling the join-service and waiting for the node to be back up"
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kubectl patch daemonset -n kube-system join-service --type=json -p='[{"op": "remove", "path": "/spec/template/spec/nodeSelector/some-tag"}]'
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kubectl wait --for=condition=Ready=true --timeout=10m --all nodes
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- name: Restart all control plane nodes
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shell: bash
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env:
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KUBECONFIG: ${{ inputs.kubeconfig }}
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run: |
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CONTROL_PLANE_NODES=$(kubectl get nodes --selector='node-role.kubernetes.io/control-plane' -o json | jq '.items[].metadata.name' -r)
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for CONTROL_PLANE_NODE in ${CONTROL_PLANE_NODES}; do
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kubectl debug node/$CONTROL_PLANE_NODE --image=ubuntu -- bash -c "echo reboot > reboot.sh && chroot /host < reboot.sh"
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done
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- name: Constellation recover
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shell: bash
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run: |
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timeout=600
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start_time=$(date +%s)
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recovered=0
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while true; do
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output=$(constellation recover)
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if echo "$output" | grep -q "Pushed recovery key."; then
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echo "$output"
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i=$(echo "$output" | grep -o "Pushed recovery key." | wc -l | sed 's/ //g')
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recovered=$((recovered+i))
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if [[ $recovered -gt ${{ inputs.controlNodesCount }}/2 ]]; then
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break
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fi
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fi
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current_time=$(date +%s)
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if ((current_time - start_time > timeout)); then
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echo "Control plane recovery timed out after $timeout seconds."
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exit 1
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fi
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echo "Did not recover a quorum (>${{inputs.controlNodesCount}}/2) of control-plane nodes yet, retrying in 5 seconds [$recovered/${{ inputs.controlNodesCount }}]"
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sleep 5
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done
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- name: Wait for control plane to get back up
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shell: bash
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env:
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KUBECONFIG: ${{ inputs.kubeconfig }}
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run: |
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timeout=600
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start_time=$(date +%s)
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while true; do
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output=$(kubectl wait --for=condition=Ready --timeout=10m --all nodes || true)
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if echo "$output" | grep -q "condition met"; then
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echo "$output"
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exit 0
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fi
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current_time=$(date +%s)
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if ((current_time - start_time > timeout)); then
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echo "Waiting for control plane to get back up timed out after $timeout seconds."
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exit 1
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fi
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echo "Cannot reach control plane, retrying in 10 seconds"
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sleep 10
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done
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