meldestelle/scripts/generate-compose-files.sh

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#!/bin/bash
# ===================================================================
# Docker Compose Template Generator
# Generates docker-compose files from docker/versions.toml templates
# ===================================================================
set -e
# Script directory and project root
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
DOCKER_DIR="$PROJECT_ROOT/docker"
VERSIONS_TOML="$DOCKER_DIR/versions.toml"
TEMPLATES_DIR="$DOCKER_DIR/compose-templates"
OUTPUT_DIR="$PROJECT_ROOT"
# Colors for output
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
BLUE='\033[0;34m'
NC='\033[0m' # No Color
# Function to print colored output
print_info() {
echo -e "${BLUE}[INFO]${NC} $1"
}
print_success() {
echo -e "${GREEN}[SUCCESS]${NC} $1"
}
print_warning() {
echo -e "${YELLOW}[WARNING]${NC} $1"
}
print_error() {
echo -e "${RED}[ERROR]${NC} $1"
}
# Function to extract version from TOML file
get_version() {
local key=$1
grep "^$key = " "$VERSIONS_TOML" | sed 's/.*= "\(.*\)"/\1/' || echo ""
}
# Function to extract port from TOML file
get_port() {
local service=$1
grep "^$service = " "$VERSIONS_TOML" | grep -A 50 "\[service-ports\]" | grep "^$service = " | sed 's/.*= \(.*\)/\1/' || echo ""
}
# Function to extract environment config from TOML file
get_env_config() {
local env=$1
local key=$2
awk "/\[environments\.$env\]/,/^\[/ {if (/^$key = /) {gsub(/.*= \"?|\"?$/, \"\"); print}}" "$VERSIONS_TOML" || echo ""
}
# Function to generate build args section for a service category
generate_build_args_section() {
local category=$1
cat << EOF
args:
# Global build arguments (from docker/build-args/global.env)
GRADLE_VERSION: \${DOCKER_GRADLE_VERSION:-$(get_version "gradle")}
JAVA_VERSION: \${DOCKER_JAVA_VERSION:-$(get_version "java")}
BUILD_DATE: \${BUILD_DATE}
VERSION: \${DOCKER_APP_VERSION:-$(get_version "app-version")}
EOF
case $category in
"services")
cat << EOF
# Service-specific arguments (from docker/build-args/services.env)
SPRING_PROFILES_ACTIVE: \${DOCKER_SPRING_PROFILES_DOCKER:-$(get_version "spring-profiles-docker")}
EOF
;;
"infrastructure")
cat << EOF
# Infrastructure-specific arguments (from docker/build-args/infrastructure.env)
SPRING_PROFILES_ACTIVE: \${DOCKER_SPRING_PROFILES_DEFAULT:-$(get_version "spring-profiles-default")}
EOF
;;
"clients")
cat << EOF
# Client-specific arguments (from docker/build-args/clients.env)
NODE_VERSION: \${DOCKER_NODE_VERSION:-$(get_version "node")}
NGINX_VERSION: \${DOCKER_NGINX_VERSION:-$(get_version "nginx")}
EOF
;;
esac
}
# Function to generate environment variables section
generate_environment_vars_for_service() {
local service=$1
local environment=${2:-development}
local spring_profiles=$(get_env_config $environment "spring-profiles")
local debug_enabled=$(get_env_config $environment "debug-enabled")
local log_level=$(get_env_config $environment "log-level")
local debug_port=$(get_env_config $environment "jvm-debug-port")
local service_port=$(get_port $service)
cat << EOF
environment:
SPRING_PROFILES_ACTIVE: \${SPRING_PROFILES_ACTIVE:-$spring_profiles}
SERVER_PORT: \${${service^^}_PORT:-$service_port}
DEBUG: \${DEBUG:-$debug_enabled}
LOGGING_LEVEL_ROOT: \${LOGGING_LEVEL_ROOT:-$log_level}
EOF
# Add debug port if enabled
if [[ "$debug_port" != "false" && "$debug_port" != "" ]]; then
echo " JVM_DEBUG_PORT: ${debug_port}"
fi
}
# Function to generate health check section
generate_health_check() {
local service=$1
local environment=${2:-development}
local interval=$(get_env_config $environment "health-check-interval")
local timeout=$(get_env_config $environment "health-check-timeout")
local retries=$(get_env_config $environment "health-check-retries")
local start_period=$(get_env_config $environment "health-check-start-period")
local service_port=$(get_port $service)
cat << EOF
healthcheck:
test: ["CMD", "curl", "--fail", "http://localhost:${service_port}/actuator/health/readiness"]
interval: ${interval:-30s}
timeout: ${timeout:-5s}
retries: ${retries:-3}
start_period: ${start_period:-40s}
EOF
}
# Function to generate service definition
generate_service_definition() {
local service=$1
local category=$2
local environment=${3:-development}
local service_port=$(get_port $service)
local debug_port=$(get_env_config $environment "jvm-debug-port")
cat << EOF
$service:
build:
context: .
dockerfile: dockerfiles/$category/$service/Dockerfile
$(generate_build_args_section $category)
container_name: meldestelle-$service
$(generate_environment_vars_for_service $service $environment)
ports:
- "\${${service^^}_PORT:-$service_port}:$service_port"
EOF
# Add debug port if enabled
if [[ "$debug_port" != "false" && "$debug_port" != "" ]]; then
echo " - \"${debug_port}:${debug_port}\" # Debug-Port"
fi
cat << EOF
networks:
- meldestelle-network
$(generate_health_check $service $environment)
restart: unless-stopped
EOF
}
# Function to generate main infrastructure compose file
generate_infrastructure_compose() {
local environment=${1:-development}
print_info "Generating docker-compose.yml (Infrastructure)..."
cat > "$OUTPUT_DIR/docker-compose.yml" << EOF
# ===================================================================
# Docker Compose - Infrastructure Services
# Generated from docker/versions.toml
# Environment: $environment
# Generated: $(date -u +'%Y-%m-%d %H:%M:%S UTC')
# ===================================================================
services:
# ===================================================================
# Database
# ===================================================================
postgres:
image: postgres:16-alpine
container_name: meldestelle-postgres
environment:
POSTGRES_USER: \${POSTGRES_USER:-meldestelle}
POSTGRES_PASSWORD: \${POSTGRES_PASSWORD:-meldestelle}
POSTGRES_DB: \${POSTGRES_DB:-meldestelle}
ports:
- "$(get_port postgres):$(get_port postgres)"
volumes:
- postgres-data:/var/lib/postgresql/data
- ./docker/services/postgres:/docker-entrypoint-initdb.d
networks:
- meldestelle-network
healthcheck:
test: ["CMD-SHELL", "pg_isready -U meldestelle -d meldestelle"]
interval: $(get_env_config $environment "health-check-interval")
timeout: $(get_env_config $environment "health-check-timeout")
retries: $(get_env_config $environment "health-check-retries")
start_period: $(get_env_config $environment "health-check-start-period")
restart: unless-stopped
# ===================================================================
# Cache
# ===================================================================
redis:
image: redis:7-alpine
container_name: meldestelle-redis
ports:
- "\${REDIS_PORT:-$(get_port redis)}:$(get_port redis)"
volumes:
- redis-data:/data
command: redis-server --appendonly yes
networks:
- meldestelle-network
healthcheck:
test: ["CMD", "redis-cli", "ping"]
interval: $(get_env_config $environment "health-check-interval")
timeout: $(get_env_config $environment "health-check-timeout")
retries: $(get_env_config $environment "health-check-retries")
start_period: $(get_env_config $environment "health-check-start-period")
restart: unless-stopped
# ===================================================================
# Authentication
# ===================================================================
keycloak:
image: quay.io/keycloak/keycloak:\${DOCKER_KEYCLOAK_VERSION:-$(get_version "keycloak")}
container_name: meldestelle-keycloak
environment:
KEYCLOAK_ADMIN: \${KEYCLOAK_ADMIN:-admin}
KEYCLOAK_ADMIN_PASSWORD: \${KEYCLOAK_ADMIN_PASSWORD:-admin}
KC_DB: postgres
KC_DB_URL: jdbc:postgresql://postgres:$(get_port postgres)/\${POSTGRES_DB:-meldestelle}
KC_DB_USERNAME: \${POSTGRES_USER:-meldestelle}
KC_DB_PASSWORD: \${POSTGRES_PASSWORD:-meldestelle}
ports:
- "$(get_port keycloak):8080"
depends_on:
postgres:
condition: service_healthy
volumes:
- ./docker/services/keycloak:/opt/keycloak/data/import
command: start-dev --import-realm
networks:
- meldestelle-network
healthcheck:
test: ["CMD", "wget", "--quiet", "--tries=1", "--spider", "http://localhost:8080/"]
interval: $(get_env_config $environment "health-check-interval")
timeout: $(get_env_config $environment "health-check-timeout")
retries: $(get_env_config $environment "health-check-retries")
start_period: $(get_env_config $environment "health-check-start-period")
restart: unless-stopped
# ===================================================================
# Monitoring
# ===================================================================
prometheus:
image: prom/prometheus:\${DOCKER_PROMETHEUS_VERSION:-$(get_version "prometheus")}
container_name: meldestelle-prometheus
ports:
- "\${PROMETHEUS_PORT:-$(get_port prometheus)}:$(get_port prometheus)"
volumes:
- prometheus-data:/prometheus
- ./docker/monitoring/prometheus:/etc/prometheus:ro
command:
- '--config.file=/etc/prometheus/prometheus.yml'
- '--storage.tsdb.path=/prometheus'
- '--web.console.libraries=/etc/prometheus/console_libraries'
- '--web.console.templates=/etc/prometheus/consoles'
- '--storage.tsdb.retention.time=200h'
- '--web.enable-lifecycle'
networks:
- meldestelle-network
healthcheck:
test: ["CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://localhost:$(get_port prometheus)/-/healthy"]
interval: $(get_env_config $environment "health-check-interval")
timeout: $(get_env_config $environment "health-check-timeout")
retries: $(get_env_config $environment "health-check-retries")
start_period: $(get_env_config $environment "health-check-start-period")
restart: unless-stopped
grafana:
image: grafana/grafana:\${DOCKER_GRAFANA_VERSION:-$(get_version "grafana")}
container_name: meldestelle-grafana
environment:
GF_SECURITY_ADMIN_USER: \${GF_SECURITY_ADMIN_USER:-admin}
GF_SECURITY_ADMIN_PASSWORD: \${GF_SECURITY_ADMIN_PASSWORD:-admin}
GF_USERS_ALLOW_SIGN_UP: \${GF_USERS_ALLOW_SIGN_UP:-false}
GF_INSTALL_PLUGINS: grafana-piechart-panel
ports:
- "\${GRAFANA_PORT:-$(get_port grafana)}:$(get_port grafana)"
volumes:
- grafana-data:/var/lib/grafana
- ./docker/monitoring/grafana:/etc/grafana/provisioning:ro
depends_on:
- prometheus
networks:
- meldestelle-network
healthcheck:
test: ["CMD", "curl", "--fail", "http://localhost:$(get_port grafana)/api/health"]
interval: $(get_env_config $environment "health-check-interval")
timeout: $(get_env_config $environment "health-check-timeout")
retries: $(get_env_config $environment "health-check-retries")
start_period: $(get_env_config $environment "health-check-start-period")
restart: unless-stopped
# ===================================================================
# Volumes
# ===================================================================
volumes:
postgres-data:
driver: local
redis-data:
driver: local
prometheus-data:
driver: local
grafana-data:
driver: local
# ===================================================================
# Networks
# ===================================================================
networks:
meldestelle-network:
driver: bridge
EOF
print_success "Generated docker-compose.yml"
}
# Function to generate services compose file
generate_services_compose() {
local environment=${1:-development}
print_info "Generating docker-compose.services.yml..."
cat > "$OUTPUT_DIR/docker-compose.services.yml" << EOF
# ===================================================================
# Docker Compose - Application Services
# Generated from docker/versions.toml
# Environment: $environment
# Generated: $(date -u +'%Y-%m-%d %H:%M:%S UTC')
# ===================================================================
services:
$(generate_service_definition "ping-service" "services" $environment)
$(generate_service_definition "api-gateway" "infrastructure" $environment)
# ===================================================================
# Networks (shared network from main compose file)
# ===================================================================
networks:
meldestelle-network:
driver: bridge
EOF
print_success "Generated docker-compose.services.yml"
}
# Function to generate clients compose file
generate_clients_compose() {
local environment=${1:-development}
print_info "Generating docker-compose.clients.yml..."
cat > "$OUTPUT_DIR/docker-compose.clients.yml" << EOF
# ===================================================================
# Docker Compose - Client Applications
# Generated from docker/versions.toml
# Environment: $environment
# Generated: $(date -u +'%Y-%m-%d %H:%M:%S UTC')
# ===================================================================
services:
# ===================================================================
# Web Application (Compose for Web)
# ===================================================================
web-app:
build:
context: .
dockerfile: dockerfiles/clients/web-app/Dockerfile
$(generate_build_args_section "clients")
# Application-specific arguments
CLIENT_PATH: client
CLIENT_MODULE: client
CLIENT_NAME: meldestelle-web-app
container_name: meldestelle-web-app
environment:
NODE_ENV: \${NODE_ENV:-$(get_env_config $environment "spring-profiles")}
API_BASE_URL: http://api-gateway:\${GATEWAY_PORT:-$(get_port "api-gateway")}
WS_URL: ws://api-gateway:\${GATEWAY_PORT:-$(get_port "api-gateway")}/ws
APP_TITLE: \${APP_NAME:-Meldestelle}
APP_VERSION: \${APP_VERSION:-$(get_version "app-version")}
ports:
- "$(get_port "web-app"):$(get_port "web-app")"
networks:
- meldestelle-network
healthcheck:
test: ["CMD", "curl", "--fail", "http://localhost:$(get_port "web-app")/health"]
interval: $(get_env_config $environment "health-check-interval")
timeout: $(get_env_config $environment "health-check-timeout")
retries: $(get_env_config $environment "health-check-retries")
start_period: $(get_env_config $environment "health-check-start-period")
restart: unless-stopped
# ===================================================================
# Networks (shared network from main compose file)
# ===================================================================
networks:
meldestelle-network:
driver: bridge
EOF
print_success "Generated docker-compose.clients.yml"
}
# Function to show help
show_help() {
echo "Docker Compose Template Generator"
echo ""
echo "Usage: $0 [COMMAND] [ENVIRONMENT]"
echo ""
echo "Commands:"
echo " all Generate all compose files"
echo " infrastructure Generate docker-compose.yml (infrastructure)"
echo " services Generate docker-compose.services.yml"
echo " clients Generate docker-compose.clients.yml"
echo ""
echo "Environments:"
echo " development Development environment (default)"
echo " production Production environment"
echo " testing Testing environment"
echo ""
echo "Examples:"
echo " $0 all # Generate all files for development"
echo " $0 all production # Generate all files for production"
echo " $0 infrastructure development # Generate infrastructure compose for dev"
echo " $0 services production # Generate services compose for prod"
}
# Main execution
main() {
# Check if versions.toml exists
if [[ ! -f "$VERSIONS_TOML" ]]; then
print_error "Versions file not found: $VERSIONS_TOML"
exit 1
fi
local command=${1:-all}
local environment=${2:-development}
# Validate environment
if [[ ! "$environment" =~ ^(development|production|testing)$ ]]; then
print_error "Invalid environment: $environment"
print_error "Valid environments: development, production, testing"
exit 1
fi
print_info "Generating Docker Compose files for environment: $environment"
case $command in
"all")
generate_infrastructure_compose $environment
generate_services_compose $environment
generate_clients_compose $environment
print_success "All compose files generated successfully!"
;;
"infrastructure")
generate_infrastructure_compose $environment
;;
"services")
generate_services_compose $environment
;;
"clients")
generate_clients_compose $environment
;;
"-h"|"--help"|"help")
show_help
;;
*)
print_error "Unknown command: $command"
show_help
exit 1
;;
esac
}
# Run main function with all arguments
main "$@"