Hugh Hackman
8aaa82663c
Variable expansion inside heredocs breaks YAML parsing when values contain colons and quotes (like nodeName). Write the Job manifest to a temp file with literal YAML, then sed-substitute the dynamic values. Co-Authored-By: Paperclip <noreply@paperclip.ing>
138 lines
4.7 KiB
Bash
Executable File
138 lines
4.7 KiB
Bash
Executable File
#!/usr/bin/env bash
|
|
# deploy-plugin-via-volume.sh
|
|
#
|
|
# Copies the built plugin into the shared PVC so Headlamp picks it up.
|
|
# Uses a temporary Kubernetes Job to write to the PVC — the CI runner
|
|
# does NOT need the PVC mounted locally.
|
|
#
|
|
# Usage:
|
|
# scripts/deploy-plugin-via-volume.sh
|
|
#
|
|
# Environment:
|
|
# HEADLAMP_NAMESPACE — namespace where Headlamp runs (default: kube-system)
|
|
# HEADLAMP_DEPLOY — Headlamp deployment name (default: headlamp)
|
|
set -euo pipefail
|
|
|
|
REPO_ROOT="$(cd "$(dirname "$0")/.." && pwd)"
|
|
HEADLAMP_NAMESPACE="${HEADLAMP_NAMESPACE:-kube-system}"
|
|
HEADLAMP_DEPLOY="${HEADLAMP_DEPLOY:-headlamp}"
|
|
|
|
# The deployed directory name must match the plugin's registered name.
|
|
# PR #56 aligns registerPluginSettings to "polaris"; the directory must match.
|
|
PLUGIN_DIR_NAME="polaris"
|
|
DIST_DIR="$REPO_ROOT/dist"
|
|
|
|
if [ ! -d "$DIST_DIR" ]; then
|
|
echo "ERROR: dist/ not found. Run 'npm run build' first." >&2
|
|
exit 1
|
|
fi
|
|
|
|
echo "Deploying plugin to shared volume via temporary job..."
|
|
echo " Source: $DIST_DIR"
|
|
echo " PVC: headlamp-plugins"
|
|
echo " Plugin: $PLUGIN_DIR_NAME"
|
|
|
|
# Create tarball of plugin dist + package.json
|
|
TAR_FILE=$(mktemp /tmp/plugin-XXXXXX.tar.gz)
|
|
tar -czf "$TAR_FILE" -C "$DIST_DIR" . -C "$REPO_ROOT" package.json
|
|
echo " Tarball: $TAR_FILE ($(du -h "$TAR_FILE" | cut -f1))"
|
|
|
|
# Find the node where Headlamp is running — the PVC is ReadWriteOnce so
|
|
# the deploy job must land on the same node to mount it.
|
|
HEADLAMP_NODE=$(kubectl get pods -n "$HEADLAMP_NAMESPACE" \
|
|
-l "app.kubernetes.io/name=headlamp" \
|
|
-o jsonpath='{.items[0].spec.nodeName}' 2>/dev/null || true)
|
|
if [ -z "$HEADLAMP_NODE" ]; then
|
|
HEADLAMP_NODE=$(kubectl get pods -n "$HEADLAMP_NAMESPACE" \
|
|
-l "app.kubernetes.io/instance=headlamp" \
|
|
-o jsonpath='{.items[0].spec.nodeName}' 2>/dev/null || true)
|
|
fi
|
|
if [ -n "$HEADLAMP_NODE" ]; then
|
|
echo " Headlamp node: $HEADLAMP_NODE (scheduling deploy job there)"
|
|
fi
|
|
|
|
# Clean up any previous deploy resources
|
|
kubectl delete job plugin-deploy -n "$HEADLAMP_NAMESPACE" --ignore-not-found 2>/dev/null || true
|
|
kubectl delete configmap plugin-tarball -n "$HEADLAMP_NAMESPACE" --ignore-not-found 2>/dev/null || true
|
|
sleep 2
|
|
|
|
# Store the tarball in a ConfigMap (binary-safe via --from-file)
|
|
echo "Creating ConfigMap with plugin tarball..."
|
|
kubectl create configmap plugin-tarball \
|
|
-n "$HEADLAMP_NAMESPACE" \
|
|
--from-file=plugin.tar.gz="$TAR_FILE"
|
|
|
|
# Build the Job manifest as a temp file to avoid heredoc YAML escaping issues
|
|
JOB_FILE=$(mktemp /tmp/plugin-deploy-job-XXXXXX.yaml)
|
|
|
|
cat > "$JOB_FILE" <<'YAMLDOC'
|
|
apiVersion: batch/v1
|
|
kind: Job
|
|
metadata:
|
|
name: plugin-deploy
|
|
spec:
|
|
backoffLimit: 0
|
|
ttlSecondsAfterFinished: 60
|
|
template:
|
|
spec:
|
|
restartPolicy: Never
|
|
containers:
|
|
- name: deploy
|
|
image: busybox:1.36
|
|
command: ["sh", "-c"]
|
|
args:
|
|
- |
|
|
echo "Extracting plugin to shared volume..."
|
|
rm -rf /plugins/PLUGIN_DIR_PLACEHOLDER
|
|
mkdir -p /plugins/PLUGIN_DIR_PLACEHOLDER
|
|
tar -xzf /tarball/plugin.tar.gz -C /plugins/PLUGIN_DIR_PLACEHOLDER
|
|
echo "Files deployed:"
|
|
ls -la /plugins/PLUGIN_DIR_PLACEHOLDER/
|
|
volumeMounts:
|
|
- name: plugins
|
|
mountPath: /plugins
|
|
- name: tarball
|
|
mountPath: /tarball
|
|
readOnly: true
|
|
volumes:
|
|
- name: plugins
|
|
persistentVolumeClaim:
|
|
claimName: headlamp-plugins
|
|
- name: tarball
|
|
configMap:
|
|
name: plugin-tarball
|
|
YAMLDOC
|
|
|
|
# Substitute plugin dir name
|
|
sed -i "s/PLUGIN_DIR_PLACEHOLDER/${PLUGIN_DIR_NAME}/g" "$JOB_FILE"
|
|
|
|
# Add nodeName if we know which node Headlamp is on
|
|
if [ -n "$HEADLAMP_NODE" ]; then
|
|
sed -i "/restartPolicy: Never/i\\ nodeName: ${HEADLAMP_NODE}" "$JOB_FILE"
|
|
fi
|
|
|
|
echo "Starting deploy job..."
|
|
kubectl apply -n "$HEADLAMP_NAMESPACE" -f "$JOB_FILE"
|
|
rm -f "$JOB_FILE"
|
|
|
|
# Wait for the job to complete
|
|
echo "Waiting for deploy job to complete..."
|
|
kubectl wait --for=condition=complete job/plugin-deploy \
|
|
-n "$HEADLAMP_NAMESPACE" --timeout=120s
|
|
|
|
# Show logs
|
|
kubectl logs job/plugin-deploy -n "$HEADLAMP_NAMESPACE" 2>/dev/null || true
|
|
|
|
# Clean up
|
|
kubectl delete job plugin-deploy -n "$HEADLAMP_NAMESPACE" --ignore-not-found 2>/dev/null || true
|
|
kubectl delete configmap plugin-tarball -n "$HEADLAMP_NAMESPACE" --ignore-not-found 2>/dev/null || true
|
|
|
|
rm -f "$TAR_FILE"
|
|
|
|
# Restart Headlamp to pick up the new plugin
|
|
echo "Restarting Headlamp deployment to load plugin..."
|
|
kubectl rollout restart "deployment/$HEADLAMP_DEPLOY" -n "$HEADLAMP_NAMESPACE"
|
|
kubectl rollout status "deployment/$HEADLAMP_DEPLOY" -n "$HEADLAMP_NAMESPACE" --timeout=120s
|
|
|
|
echo "Plugin deployed successfully."
|