Hugh Hackman
bf5614f268
The PVC had a stale headlamp-polaris directory from a previous install. Headlamp loads plugins by scanning the plugins dir and reading package.json from each subdirectory — it was loading the old build from headlamp-polaris/ while the deploy script was writing to polaris/. The settings registration name needs to match the plugin name Headlamp identifies. Changes: - Deploy script now uses headlamp-polaris as the directory name (matching package.json name field) - Deploy pod cleans up both polaris/ and headlamp-polaris/ before deploying to ensure no stale copies remain - registerPluginSettings uses headlamp-polaris to match Headlamp's plugin identifier Co-Authored-By: Paperclip <noreply@paperclip.ing>
136 lines
4.7 KiB
Bash
Executable File
136 lines
4.7 KiB
Bash
Executable File
#!/usr/bin/env bash
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# deploy-plugin-via-volume.sh
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#
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# Copies the built plugin into the shared PVC so Headlamp picks it up.
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# Uses a temporary Kubernetes Job to write to the PVC — the CI runner
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# does NOT need the PVC mounted locally.
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#
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# Usage:
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# scripts/deploy-plugin-via-volume.sh
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#
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# Environment:
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# HEADLAMP_NAMESPACE — namespace where Headlamp runs (default: kube-system)
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# HEADLAMP_DEPLOY — Headlamp deployment name (default: headlamp)
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set -euo pipefail
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REPO_ROOT="$(cd "$(dirname "$0")/.." && pwd)"
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HEADLAMP_NAMESPACE="${HEADLAMP_NAMESPACE:-kube-system}"
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HEADLAMP_DEPLOY="${HEADLAMP_DEPLOY:-headlamp}"
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# The deployed directory name must match the package.json name and
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# the registerPluginSettings name. Headlamp identifies plugins by
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# reading package.json from each subdirectory of the plugins dir.
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PLUGIN_DIR_NAME="headlamp-polaris"
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DIST_DIR="$REPO_ROOT/dist"
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if [ ! -d "$DIST_DIR" ]; then
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echo "ERROR: dist/ not found. Run 'npm run build' first." >&2
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exit 1
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fi
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echo "Deploying plugin to shared volume via temporary job..."
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echo " Source: $DIST_DIR"
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echo " PVC: headlamp-plugins"
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echo " Plugin: $PLUGIN_DIR_NAME"
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# Create tarball of plugin dist + package.json
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TAR_FILE=$(mktemp /tmp/plugin-XXXXXX.tar.gz)
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tar -czf "$TAR_FILE" -C "$DIST_DIR" . -C "$REPO_ROOT" package.json
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echo " Tarball: $TAR_FILE ($(du -h "$TAR_FILE" | cut -f1))"
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# Find the node where Headlamp is running — the PVC is ReadWriteOnce so
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# the deploy job must land on the same node to mount it.
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HEADLAMP_NODE=$(kubectl get pods -n "$HEADLAMP_NAMESPACE" \
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-l "app.kubernetes.io/name=headlamp" \
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-o jsonpath='{.items[0].spec.nodeName}' 2>/dev/null || true)
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if [ -z "$HEADLAMP_NODE" ]; then
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HEADLAMP_NODE=$(kubectl get pods -n "$HEADLAMP_NAMESPACE" \
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-l "app.kubernetes.io/instance=headlamp" \
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-o jsonpath='{.items[0].spec.nodeName}' 2>/dev/null || true)
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fi
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if [ -n "$HEADLAMP_NODE" ]; then
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echo " Headlamp node: $HEADLAMP_NODE (scheduling deploy job there)"
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fi
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# Clean up any previous deploy resources
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kubectl delete pod plugin-deploy -n "$HEADLAMP_NAMESPACE" --ignore-not-found --wait=true 2>/dev/null || true
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kubectl delete configmap plugin-tarball -n "$HEADLAMP_NAMESPACE" --ignore-not-found 2>/dev/null || true
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sleep 2
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# Store the tarball in a ConfigMap (binary-safe via --from-file)
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echo "Creating ConfigMap with plugin tarball..."
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kubectl create configmap plugin-tarball \
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-n "$HEADLAMP_NAMESPACE" \
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--from-file=plugin.tar.gz="$TAR_FILE"
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# Build the Pod manifest as a temp file to avoid heredoc YAML escaping issues
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POD_FILE=$(mktemp /tmp/plugin-deploy-pod-XXXXXX.yaml)
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cat > "$POD_FILE" <<'YAMLDOC'
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apiVersion: v1
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kind: Pod
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metadata:
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name: plugin-deploy
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spec:
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restartPolicy: Never
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containers:
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- name: deploy
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image: busybox:1.36
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command: ["sh", "-c"]
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args:
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- |
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echo "Cleaning up stale plugin directories..."
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rm -rf /plugins/polaris /plugins/headlamp-polaris
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echo "Extracting plugin to shared volume..."
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mkdir -p /plugins/PLUGIN_DIR_PLACEHOLDER
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tar -xzf /tarball/plugin.tar.gz -C /plugins/PLUGIN_DIR_PLACEHOLDER
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echo "Files deployed:"
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ls -la /plugins/PLUGIN_DIR_PLACEHOLDER/
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volumeMounts:
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- name: plugins
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mountPath: /plugins
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- name: tarball
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mountPath: /tarball
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readOnly: true
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volumes:
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- name: plugins
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persistentVolumeClaim:
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claimName: headlamp-plugins
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- name: tarball
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configMap:
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name: plugin-tarball
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YAMLDOC
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# Substitute plugin dir name
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sed -i "s/PLUGIN_DIR_PLACEHOLDER/${PLUGIN_DIR_NAME}/g" "$POD_FILE"
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# Add nodeName if we know which node Headlamp is on
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if [ -n "$HEADLAMP_NODE" ]; then
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sed -i "/restartPolicy: Never/i\\ nodeName: ${HEADLAMP_NODE}" "$POD_FILE"
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fi
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echo "Starting deploy pod..."
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kubectl apply -n "$HEADLAMP_NAMESPACE" -f "$POD_FILE"
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rm -f "$POD_FILE"
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# Wait for the pod to complete (Succeeded phase)
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echo "Waiting for deploy pod to complete..."
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kubectl wait --for=jsonpath='{.status.phase}'=Succeeded pod/plugin-deploy \
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-n "$HEADLAMP_NAMESPACE" --timeout=120s
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# Show logs
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kubectl logs plugin-deploy -n "$HEADLAMP_NAMESPACE" 2>/dev/null || true
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# Clean up
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kubectl delete pod plugin-deploy -n "$HEADLAMP_NAMESPACE" --ignore-not-found 2>/dev/null || true
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kubectl delete configmap plugin-tarball -n "$HEADLAMP_NAMESPACE" --ignore-not-found 2>/dev/null || true
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rm -f "$TAR_FILE"
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# Restart Headlamp to pick up the new plugin
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echo "Restarting Headlamp deployment to load plugin..."
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kubectl rollout restart "deployment/$HEADLAMP_DEPLOY" -n "$HEADLAMP_NAMESPACE"
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kubectl rollout status "deployment/$HEADLAMP_DEPLOY" -n "$HEADLAMP_NAMESPACE" --timeout=120s
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echo "Plugin deployed successfully."
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