65 lines
1.7 KiB
Bash
Executable File
65 lines
1.7 KiB
Bash
Executable File
#!/bin/bash
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# chart-template
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# Renders the template for a Helm chart using gomplate for values files
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# Usage: chart-template CHART [RELEASE_NAME] [NAMESPACE]
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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 "${SCRIPT_DIR}/.." && pwd)"
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# Load environment variables if needed
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if [[ -f "${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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# 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]"
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echo ""
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echo "Renders the Kubernetes templates for 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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exit 1
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fi
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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 ${CHART_PATH}"
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exit 1
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fi
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# Check if template values file exists
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TPL_VALUES_FILE="${CHART_PATH}/values.template.yaml"
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if [[ ! -f "$TPL_VALUES_FILE" ]]; then
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echo "Error: Template values file not found at ${TPL_VALUES_FILE}"
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exit 1
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fi
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# Set variables needed for template
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export RELEASE_NAME="$RELEASE_NAME"
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export NAMESPACE="$NAMESPACE"
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export CHART="$CHART"
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# No headers - just let helm template output the YAML
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# Create temporary values file with gomplate
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TEMP_VALUES=$(mktemp)
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gomplate -f "$TPL_VALUES_FILE" > "$TEMP_VALUES"
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# Run helm template
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helm template "$RELEASE_NAME" "$CHART_PATH" \
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--namespace "$NAMESPACE" \
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--values "$TEMP_VALUES"
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# Clean up
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rm "$TEMP_VALUES" |