Initial commit
This commit is contained in:
Zhongwei Li
244
skills/helm-chart-scaffolding/scripts/validate-chart.sh
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244
skills/helm-chart-scaffolding/scripts/validate-chart.sh
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#!/bin/bash
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set -e
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CHART_DIR="${1:-.}"
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RELEASE_NAME="test-release"
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echo "═══════════════════════════════════════════════════════"
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echo " Helm Chart Validation"
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echo "═══════════════════════════════════════════════════════"
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echo ""
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# Colors
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GREEN='\033[0;32m'
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YELLOW='\033[1;33m'
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RED='\033[0;31m'
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NC='\033[0m' # No Color
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success() {
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echo -e "${GREEN}✓${NC} $1"
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}
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warning() {
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echo -e "${YELLOW}⚠${NC} $1"
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}
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error() {
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echo -e "${RED}✗${NC} $1"
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}
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# Check if Helm is installed
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if ! command -v helm &> /dev/null; then
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error "Helm is not installed"
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exit 1
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fi
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echo "📦 Chart directory: $CHART_DIR"
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echo ""
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# 1. Check chart structure
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echo "1️⃣ Checking chart structure..."
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if [ ! -f "$CHART_DIR/Chart.yaml" ]; then
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error "Chart.yaml not found"
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exit 1
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fi
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success "Chart.yaml exists"
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if [ ! -f "$CHART_DIR/values.yaml" ]; then
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error "values.yaml not found"
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exit 1
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fi
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success "values.yaml exists"
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if [ ! -d "$CHART_DIR/templates" ]; then
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error "templates/ directory not found"
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exit 1
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fi
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success "templates/ directory exists"
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echo ""
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# 2. Lint the chart
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echo "2️⃣ Linting chart..."
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if helm lint "$CHART_DIR"; then
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success "Chart passed lint"
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else
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error "Chart failed lint"
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exit 1
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fi
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echo ""
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# 3. Check Chart.yaml
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echo "3️⃣ Validating Chart.yaml..."
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CHART_NAME=$(grep "^name:" "$CHART_DIR/Chart.yaml" | awk '{print $2}')
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CHART_VERSION=$(grep "^version:" "$CHART_DIR/Chart.yaml" | awk '{print $2}')
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APP_VERSION=$(grep "^appVersion:" "$CHART_DIR/Chart.yaml" | awk '{print $2}' | tr -d '"')
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if [ -z "$CHART_NAME" ]; then
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error "Chart name not found"
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exit 1
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fi
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success "Chart name: $CHART_NAME"
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if [ -z "$CHART_VERSION" ]; then
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error "Chart version not found"
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exit 1
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fi
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success "Chart version: $CHART_VERSION"
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if [ -z "$APP_VERSION" ]; then
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warning "App version not specified"
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else
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success "App version: $APP_VERSION"
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fi
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echo ""
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# 4. Test template rendering
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echo "4️⃣ Testing template rendering..."
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if helm template "$RELEASE_NAME" "$CHART_DIR" > /dev/null 2>&1; then
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success "Templates rendered successfully"
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else
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error "Template rendering failed"
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helm template "$RELEASE_NAME" "$CHART_DIR"
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exit 1
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fi
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echo ""
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# 5. Dry-run installation
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echo "5️⃣ Testing dry-run installation..."
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if helm install "$RELEASE_NAME" "$CHART_DIR" --dry-run --debug > /dev/null 2>&1; then
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success "Dry-run installation successful"
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else
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error "Dry-run installation failed"
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exit 1
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fi
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echo ""
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# 6. Check for required Kubernetes resources
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echo "6️⃣ Checking generated resources..."
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MANIFESTS=$(helm template "$RELEASE_NAME" "$CHART_DIR")
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if echo "$MANIFESTS" | grep -q "kind: Deployment"; then
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success "Deployment found"
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else
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warning "No Deployment found"
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fi
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if echo "$MANIFESTS" | grep -q "kind: Service"; then
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success "Service found"
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else
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warning "No Service found"
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fi
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if echo "$MANIFESTS" | grep -q "kind: ServiceAccount"; then
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success "ServiceAccount found"
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else
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warning "No ServiceAccount found"
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fi
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echo ""
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# 7. Check for security best practices
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echo "7️⃣ Checking security best practices..."
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if echo "$MANIFESTS" | grep -q "runAsNonRoot: true"; then
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success "Running as non-root user"
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else
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warning "Not explicitly running as non-root"
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fi
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if echo "$MANIFESTS" | grep -q "readOnlyRootFilesystem: true"; then
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success "Using read-only root filesystem"
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else
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warning "Not using read-only root filesystem"
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fi
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if echo "$MANIFESTS" | grep -q "allowPrivilegeEscalation: false"; then
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success "Privilege escalation disabled"
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else
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warning "Privilege escalation not explicitly disabled"
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fi
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echo ""
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# 8. Check for resource limits
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echo "8️⃣ Checking resource configuration..."
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if echo "$MANIFESTS" | grep -q "resources:"; then
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if echo "$MANIFESTS" | grep -q "limits:"; then
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success "Resource limits defined"
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else
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warning "No resource limits defined"
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fi
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if echo "$MANIFESTS" | grep -q "requests:"; then
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success "Resource requests defined"
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else
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warning "No resource requests defined"
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fi
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else
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warning "No resources defined"
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fi
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echo ""
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# 9. Check for health probes
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echo "9️⃣ Checking health probes..."
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if echo "$MANIFESTS" | grep -q "livenessProbe:"; then
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success "Liveness probe configured"
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else
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warning "No liveness probe found"
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fi
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if echo "$MANIFESTS" | grep -q "readinessProbe:"; then
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success "Readiness probe configured"
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else
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warning "No readiness probe found"
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fi
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echo ""
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# 10. Check dependencies
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if [ -f "$CHART_DIR/Chart.yaml" ] && grep -q "^dependencies:" "$CHART_DIR/Chart.yaml"; then
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echo "🔟 Checking dependencies..."
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if helm dependency list "$CHART_DIR" > /dev/null 2>&1; then
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success "Dependencies valid"
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if [ -f "$CHART_DIR/Chart.lock" ]; then
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success "Chart.lock file present"
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else
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warning "Chart.lock file missing (run 'helm dependency update')"
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fi
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else
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error "Dependencies check failed"
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fi
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echo ""
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fi
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# 11. Check for values schema
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if [ -f "$CHART_DIR/values.schema.json" ]; then
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echo "1️⃣1️⃣ Validating values schema..."
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success "values.schema.json present"
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# Validate schema if jq is available
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if command -v jq &> /dev/null; then
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if jq empty "$CHART_DIR/values.schema.json" 2>/dev/null; then
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success "values.schema.json is valid JSON"
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else
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error "values.schema.json contains invalid JSON"
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exit 1
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fi
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fi
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echo ""
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fi
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# Summary
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echo "═══════════════════════════════════════════════════════"
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echo " Validation Complete!"
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echo "═══════════════════════════════════════════════════════"
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echo ""
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echo "Chart: $CHART_NAME"
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echo "Version: $CHART_VERSION"
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if [ -n "$APP_VERSION" ]; then
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echo "App Version: $APP_VERSION"
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fi
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echo ""
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success "All validations passed!"
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echo ""
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echo "Next steps:"
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echo " • helm package $CHART_DIR"
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echo " • helm install my-release $CHART_DIR"
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echo " • helm test my-release"
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echo ""
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