108 lines
3.2 KiB
Bash
Executable File
108 lines
3.2 KiB
Bash
Executable File
#!/bin/bash
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# chart-install
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# Installs a Helm chart using gomplate for templating values
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# Usage: chart-install CHART [RELEASE_NAME] [NAMESPACE] [--dry-run]
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set -e
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# Get script directories
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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REPO_ROOT="$(cd "${SCRIPT_DIR}/.." && pwd)"
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# Load environment variables if needed
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if [[ -z "$ENVIRONMENT" ]]; then
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if [[ -f "${REPO_ROOT}/load-env.sh" ]]; then
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source "${REPO_ROOT}/load-env.sh"
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fi
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fi
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# Print usage
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if [[ $# -lt 1 || "$1" == "-h" || "$1" == "--help" ]]; then
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echo "Usage: $(basename $0) CHART [RELEASE_NAME] [NAMESPACE] [--dry-run]"
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echo ""
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echo "Install or upgrade a chart with environment variable substitution."
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echo ""
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echo " CHART Chart name in charts/ directory"
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echo " RELEASE_NAME Release name (defaults to CHART)"
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echo " NAMESPACE Namespace (defaults to RELEASE_NAME)"
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echo ""
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echo "Options:"
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echo " --dry-run Show what would be installed without actually installing"
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echo ""
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exit 1
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fi
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# Check for dry run flag
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DRY_RUN=false
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for arg in "$@"; do
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if [ "$arg" == "--dry-run" ]; then
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DRY_RUN=true
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fi
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done
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CHART="$1"
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RELEASE_NAME="${2:-$CHART}"
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NAMESPACE="${3:-$RELEASE_NAME}"
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# Check if chart exists
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CHART_PATH="${REPO_ROOT}/charts/${CHART}"
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if [[ ! -d "$CHART_PATH" ]]; then
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echo "Error: Chart not found at ${CHART_PATH}"
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exit 1
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fi
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# Update chart dependencies if Chart.yaml has dependencies section
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if [ -f "${CHART_PATH}/Chart.yaml" ] && grep -q "dependencies:" "${CHART_PATH}/Chart.yaml"; then
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echo "Updating dependencies for chart: $CHART"
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helm dependency update "$CHART_PATH"
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fi
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# We'll use chart-template for values, so we don't need to check here
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# Create namespace (unless --dry-run was specified)
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if [ "$DRY_RUN" == "false" ]; then
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kubectl create namespace "$NAMESPACE" --dry-run=client -o yaml | kubectl apply -f -
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fi
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# Run the helm command
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echo "Installing chart: $CHART as $RELEASE_NAME in namespace $NAMESPACE"
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if [ "$DRY_RUN" == "true" ]; then
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echo "==> DRY RUN: Would install the following resources:"
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"${SCRIPT_DIR}/chart-template" "$CHART" "$RELEASE_NAME" "$NAMESPACE"
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exit 0
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fi
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# For actual installation, create a temporary file to capture template output
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TEMP_OUTPUT=$(mktemp)
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"${SCRIPT_DIR}/chart-template" "$CHART" "$RELEASE_NAME" "$NAMESPACE" > "$TEMP_OUTPUT"
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# Apply the template to the cluster
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kubectl apply -f "$TEMP_OUTPUT"
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# Clean up
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rm "$TEMP_OUTPUT"
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# Print helpful information (if not dry run)
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if [ "$DRY_RUN" == "false" ]; then
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echo ""
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echo "✅ Successfully installed/upgraded $RELEASE_NAME in namespace $NAMESPACE"
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echo ""
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echo "To check the status:"
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echo " kubectl get all -n $NAMESPACE -l app.kubernetes.io/instance=$RELEASE_NAME"
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echo ""
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fi
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# Check for post-install instructions (only if not dry run)
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if [ "$DRY_RUN" == "false" ]; then
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INSTRUCTIONS_FILE="${CHART_PATH}/POST_INSTALL_NOTES.txt"
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if [[ -f "$INSTRUCTIONS_FILE" ]]; then
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# Process environment variables in instructions (using the same environment)
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echo ""
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echo "Post-installation instructions:"
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echo "==============================="
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gomplate -f "$INSTRUCTIONS_FILE"
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else
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echo "For more information, see the documentation in ${CHART_PATH}/README.md"
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fi
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fi |