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+#!/usr/bin/env bash
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+# Sync Docker image versions to template.yaml metadata
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+# This script is triggered by GitHub Actions when Renovate updates dependencies
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+#
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+# Supports:
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+# - Docker Compose templates (compose.yaml.j2)
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+# - Kubernetes Helm templates (values.yaml, values.yml)
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+# - Kubernetes manifest templates (*.j2 files)
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+
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+set -euo pipefail
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+
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+# Color output for better readability
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+GREEN='\033[0;32m'
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+YELLOW='\033[1;33m'
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+NC='\033[0m' # No Color
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+
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+echo "Starting template version sync..."
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+
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+# Function to extract version from Docker image reference
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+# Handles: image:tag, registry/image:tag, registry/namespace/image:tag
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+extract_version_from_image() {
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+ local image_line="$1"
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+ # Extract everything after the last colon, excluding Jinja2 variables
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+ echo "$image_line" | sed -E 's/.*:([^:]+)$/\1/' | tr -d ' ' | grep -v '{{' || true
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+}
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+
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+# Function to update template.yaml version
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+update_template_version() {
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+ local template_file="$1"
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+ local new_version="$2"
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+
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+ # Get current version from template.yaml
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+ local current_version
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+ current_version=$(grep -E '^\s*version:\s*' "$template_file" | sed -E 's/.*version:\s*['\''"]?([^'\''"]+)['\''"]?/\1/' | tr -d ' ' || true)
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+
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+ # Only update if versions are different
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+ if [ -n "$current_version" ] && [ "$new_version" != "$current_version" ]; then
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+ echo -e "${GREEN}✓${NC} Updating $template_file: ${YELLOW}$current_version${NC} → ${GREEN}$new_version${NC}"
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+
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+ # Update version in template.yaml (cross-platform compatible)
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+ if [[ "$OSTYPE" == "darwin"* ]]; then
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+ sed -i '' "s/version: .*/version: $new_version/" "$template_file"
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+ else
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+ sed -i "s/version: .*/version: $new_version/" "$template_file"
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+ fi
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+ return 0
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+ fi
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+ return 1
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+}
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+
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+# Counter for updated templates
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+updated_count=0
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+
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+# Process Docker Compose templates
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+echo ""
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+echo "Scanning Docker Compose templates..."
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+while IFS= read -r compose_file; do
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+ template_dir=$(dirname "$compose_file")
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+ template_file="$template_dir/template.yaml"
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+
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+ # Skip if template.yaml doesn't exist
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+ [ ! -f "$template_file" ] && continue
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+
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+ # Extract the first Docker image version from compose.yaml.j2
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+ # Matches: image: repo/name:version or image: name:version
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+ # Ignores Jinja2 variables like {{ variable }}
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+ version=$(grep -E '^\s*image:\s*[^{]*:[^{}\s]+' "$compose_file" | head -n1 | sed -E 's/.*:([^:]+)$/\1/' | tr -d ' ' || true)
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+
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+ # Skip if no version found or if it's a Jinja2 variable
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+ if [ -z "$version" ] || [[ "$version" =~ \{\{ ]]; then
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+ continue
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+ fi
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+
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+ # Update template version
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+ if update_template_version "$template_file" "$version"; then
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+ ((updated_count++))
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+ fi
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+done < <(find library/compose -type f -name "compose.yaml.j2" 2>/dev/null || true)
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+
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+# Process Kubernetes Helm templates (values.yaml pattern)
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+echo ""
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+echo "Scanning Kubernetes Helm templates..."
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+while IFS= read -r values_file; do
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+ template_dir=$(dirname "$values_file")
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+ template_file="$template_dir/template.yaml"
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+
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+ # Skip if template.yaml doesn't exist
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+ [ ! -f "$template_file" ] && continue
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+
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+ # Extract version from Helm values.yaml
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+ # Matches repository + tag pattern:
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+ # repository: registry/image
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+ # tag: version
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+ version=$(grep -A1 'repository:' "$values_file" | grep 'tag:' | sed -E 's/.*tag:\s*['\''"]?([^'\''" ]+)['\''"]?/\1/' | head -n1 | tr -d ' ' || true)
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+
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+ # Skip if no version found or if it's a Jinja2 variable
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+ if [ -z "$version" ] || [[ "$version" =~ \{\{ ]]; then
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+ continue
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+ fi
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+
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+ # Update template version
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+ if update_template_version "$template_file" "$version"; then
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+ ((updated_count++))
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+ fi
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+done < <(find library/kubernetes -type f \( -name "values.yaml" -o -name "values.yml" \) 2>/dev/null || true)
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+
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+# Process Kubernetes manifest templates (*.j2 files with image: references)
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+echo ""
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+echo "Scanning Kubernetes manifest templates..."
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+while IFS= read -r manifest_file; do
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+ template_dir=$(dirname "$manifest_file")
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+ template_file="$template_dir/template.yaml"
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+
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+ # Skip if template.yaml doesn't exist
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+ [ ! -f "$template_file" ] && continue
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+
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+ # Extract the first Docker image version from Kubernetes manifest
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+ # Matches: image: repo/name:version or image: name:version
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+ # Ignores Jinja2 variables like {{ variable }}
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+ version=$(grep -E '^\s*image:\s*[^{]*:[^{}\s]+' "$manifest_file" | head -n1 | sed -E 's/.*:([^:]+)$/\1/' | tr -d ' ' || true)
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+
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+ # Skip if no version found or if it's a Jinja2 variable
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+ if [ -z "$version" ] || [[ "$version" =~ \{\{ ]]; then
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+ continue
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+ fi
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+
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+ # Update template version
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+ if update_template_version "$template_file" "$version"; then
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+ ((updated_count++))
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+ fi
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+done < <(find library/kubernetes -type f -name "*.j2" 2>/dev/null || true)
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+
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+# Process Terraform/Packer templates if needed in the future
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+# (Currently no version syncing implemented for these)
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+
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+echo ""
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+echo "=================================================="
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+if [ $updated_count -gt 0 ]; then
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+ echo -e "${GREEN}✓${NC} Template version sync complete: ${GREEN}$updated_count${NC} template(s) updated"
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+else
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+ echo "No template version updates needed"
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+fi
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+echo "=================================================="
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xcad