Paul Payne
f1fe4f9cc2
- Refactor dnsmasq configuration and scripts for improved variable handling and clarity - Updated dnsmasq configuration files to use direct variable references instead of data source functions for better readability. - Modified setup scripts to ensure they are run from the correct environment and directory, checking for the WC_HOME variable. - Changed paths in README and scripts to reflect the new directory structure. - Enhanced error handling in setup scripts to provide clearer guidance on required configurations. - Adjusted kernel and initramfs URLs in boot.ipxe to use the updated variable references.
136 lines
4.2 KiB
Bash
Executable File
136 lines
4.2 KiB
Bash
Executable File
#!/bin/bash
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set -e
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set -o pipefail
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usage() {
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echo "Usage: helm-chart-to-kustomize <repo/chart> <release-name> <namespace> [values-file]"
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echo ""
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echo "Convert a Helm chart to Kustomize manifests."
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echo ""
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echo "Arguments:"
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echo " repo/chart Helm chart repository and name (e.g., nginx-stable/nginx-ingress)"
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echo " release-name Name for the Helm release (e.g., ingress-controller)"
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echo " namespace Kubernetes namespace to deploy to"
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echo " values-file Optional values.yaml file for customization"
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echo ""
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echo "Examples:"
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echo " helm-chart-to-kustomize nginx-stable/nginx-ingress ingress-controller ingress"
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echo " helm-chart-to-kustomize nginx-stable/nginx-ingress ingress-controller ingress values.yaml"
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echo ""
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echo "Output:"
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echo " Creates base/<release-name>/ directory with Kustomize-ready manifests"
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}
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# Parse arguments
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if [[ $# -lt 3 || "$1" == "-h" || "$1" == "--help" ]]; then
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usage
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exit 0
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fi
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chart_repo="$1"
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release_name="$2"
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namespace="$3"
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values_file="${4:-}"
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# Extract chart name from repo/chart
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chart_name="${chart_repo##*/}"
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echo "Converting Helm chart to Kustomize: $chart_repo -> base/$release_name"
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# Create working directories
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mkdir -p charts base
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# Fetch the Helm chart if not already present
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if [[ -d "charts/$chart_name" ]]; then
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echo "Chart '$chart_name' already exists in 'charts/' directory. Skipping fetch."
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else
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echo "Fetching Helm chart: $chart_repo"
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# Add repository if not already added
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repo_name="$(echo "$chart_repo" | cut -d'/' -f1)"
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if ! helm repo list 2>/dev/null | grep -q "^$repo_name"; then
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echo "Adding Helm repository: $repo_name"
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# Handle common repository URLs
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case "$repo_name" in
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"traefik")
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helm repo add "$repo_name" "https://traefik.github.io/charts"
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;;
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"nginx-stable")
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helm repo add "$repo_name" "https://helm.nginx.com/stable"
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;;
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*)
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# Try generic helm.sh pattern first
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helm repo add "$repo_name" "https://charts.helm.sh/$repo_name" 2>/dev/null || {
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echo "Error: Unknown repository '$repo_name'. Please add manually with 'helm repo add'."
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exit 1
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}
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;;
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esac
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helm repo update
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fi
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if ! helm search repo "$chart_repo" >/dev/null 2>&1; then
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echo "Error: Helm chart '$chart_repo' not found in repositories."
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exit 1
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fi
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helm fetch --untar --untardir charts "$chart_repo"
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fi
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# Build helm template command
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template_cmd="helm template --output-dir base --namespace $namespace"
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if [[ -n "$values_file" && -f "$values_file" ]]; then
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template_cmd="$template_cmd --values $values_file"
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echo "Using values file: $values_file"
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fi
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template_cmd="$template_cmd $release_name charts/$chart_name"
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# Clean existing base directory if it exists
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if [[ -d "base/$release_name" ]]; then
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echo "Existing base/$release_name directory found. Cleaning..."
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rm -rf "base/$release_name"
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fi
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# Generate manifests with Helm template
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echo "Generating manifests with Helm template..."
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eval "$template_cmd"
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# Create namespace manifest
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echo "Creating namespace manifest..."
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cat <<EOF > "base/$release_name/namespace.yaml"
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apiVersion: v1
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kind: Namespace
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metadata:
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name: $namespace
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EOF
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# Generate kustomization.yaml
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echo "Generating kustomization.yaml..."
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cd "base/$release_name"
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# Find all YAML files recursively and create kustomization
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resources=()
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while IFS= read -r -d '' file; do
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# Get relative path from current directory
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rel_path="${file#./}"
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resources+=("$rel_path")
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done < <(find . -name "*.yaml" -not -name "kustomization.yaml" -print0 | sort -z)
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# Create kustomization.yaml with all resources
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cat > kustomization.yaml << EOF
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apiVersion: kustomize.config.k8s.io/v1beta1
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kind: Kustomization
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resources:
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EOF
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for resource in "${resources[@]}"; do
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echo "- $resource" >> kustomization.yaml
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done
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echo "✅ Conversion complete!"
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echo ""
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echo "Generated files in: base/$release_name/"
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echo "To apply with kubectl:"
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echo " kubectl apply -k base/$release_name"
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echo ""
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echo "To customize further, edit the files in base/$release_name/ and regenerate kustomization.yaml if needed." |