meldestelle/scripts/validate-docker-consistency.sh

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#!/bin/bash
# ===================================================================
# Docker Consistency Validator
# Validates Dockerfiles and docker-compose files against docker/versions.toml
# ===================================================================
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="$DOCKER_DIR/versions.toml"
DOCKERFILES_DIR="$PROJECT_ROOT/dockerfiles"
# Colors for output
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
BLUE='\033[0;34m'
NC='\033[0m' # No Color
# Counters
ERRORS=0
WARNINGS=0
CHECKS_PASSED=0
# Function to print colored output
print_info() {
echo -e "${BLUE}[INFO]${NC} $1"
}
print_success() {
echo -e "${GREEN}[SUCCESS]${NC} $1"
((CHECKS_PASSED++))
}
print_warning() {
echo -e "${YELLOW}[WARNING]${NC} $1"
((WARNINGS++))
}
print_error() {
echo -e "${RED}[ERROR]${NC} $1"
((ERRORS++))
}
# Function to extract version from TOML file
get_version() {
local key=$1
grep "^$key = " "$VERSIONS_TOML" | sed 's/.*= "\(.*\)"/\1/' || echo ""
}
# Function to get valid ARG names from TOML
get_valid_args() {
# Extract all version keys from [versions] section
awk '/^\[versions\]/,/^\[/ {if (/^[a-zA-Z].*= /) print $1}' "$VERSIONS_TOML" | grep -v "^\[" || true
# Extract all build-args from [build-args] section
awk '/^\[build-args\]/,/^\[/ {
if (/^[a-zA-Z].*= \[/) {
in_array = 1
line = $0
gsub(/.*= \[/, "", line)
}
if (in_array) {
gsub(/[\[\]",]/, " ", line)
split(line, args, " ")
for (i in args) {
if (args[i] != "" && args[i] != "]") {
print args[i]
}
}
if (/\]/) in_array = 0
}
}' "$VERSIONS_TOML" || true
# Extract service ports
awk '/^\[service-ports\]/,/^\[/ {if (/^[a-zA-Z].*= /) print $1}' "$VERSIONS_TOML" | grep -v "^\[" || true
}
# Function to get environment variable mappings from TOML
get_env_mappings() {
awk '/^\[environment-mapping\]/,/^\[/ {
if (/^[a-zA-Z].*= /) {
key = $1
value = $3
gsub(/"/, "", value)
print key ":" value
}
}' "$VERSIONS_TOML" || true
}
# Function to validate Dockerfile ARGs
validate_dockerfile_args() {
local dockerfile=$1
local relative_path=${dockerfile#$PROJECT_ROOT/}
print_info "Validating Dockerfile: $relative_path"
if [[ ! -f "$dockerfile" ]]; then
print_error "Dockerfile not found: $relative_path"
return
fi
# Get all ARG declarations from Dockerfile
local dockerfile_args=$(grep "^ARG " "$dockerfile" | sed 's/^ARG //' | sed 's/=.*//' | sort -u)
# Get valid ARG names from TOML
local valid_args=$(get_valid_args | sort -u)
local has_errors=false
local has_centralized_args=false
# Check each ARG in Dockerfile
while IFS= read -r arg; do
[[ -z "$arg" ]] && continue
# Skip empty lines
if [[ -z "$arg" ]]; then
continue
fi
# Check if ARG is defined in versions.toml or is a standard Docker ARG
case "$arg" in
# Standard Docker build args
BUILDPLATFORM|TARGETPLATFORM|BUILDOS|TARGETOS|BUILDARCH|TARGETARCH)
print_success " ✓ Standard Docker ARG: $arg"
has_centralized_args=true
;;
# Application-specific args that should be centralized
GRADLE_VERSION|JAVA_VERSION|NODE_VERSION|NGINX_VERSION|BUILD_DATE|VERSION|SPRING_PROFILES_ACTIVE|SERVICE_PATH|SERVICE_NAME|SERVICE_PORT|CLIENT_PATH|CLIENT_MODULE|CLIENT_NAME)
if echo "$valid_args" | grep -q "^$arg$"; then
print_success " ✓ Centralized ARG: $arg"
has_centralized_args=true
else
print_warning " ⚠ ARG $arg should be defined in versions.toml"
fi
;;
# Runtime configuration args (acceptable)
APP_USER|APP_GROUP|APP_UID|APP_GID)
print_success " ✓ Runtime configuration ARG: $arg"
;;
*)
# Check if it's a version-related ARG that should be centralized
if [[ "$arg" =~ _(VERSION|PORT)$ ]] || [[ "$arg" =~ ^(DOCKER_|SERVICE_|CLIENT_) ]]; then
print_warning " ⚠ ARG $arg might need to be centralized in versions.toml"
else
print_success " ✓ Custom ARG: $arg"
fi
;;
esac
done <<< "$dockerfile_args"
# Check if Dockerfile uses centralized version management
if [[ "$has_centralized_args" == true ]]; then
print_success " ✓ Dockerfile uses centralized version management"
else
print_warning " ⚠ Dockerfile should use centralized ARGs from versions.toml"
fi
# Check for hardcoded versions
local hardcoded_versions=$(grep -E "ARG.*=.*(alpine|[0-9]+\.[0-9]+)" "$dockerfile" | grep -v "APP_" || true)
if [[ -n "$hardcoded_versions" ]]; then
print_error " ❌ Hardcoded versions found (should use versions.toml):"
echo "$hardcoded_versions" | while read -r line; do
print_error " $line"
done
else
print_success " ✓ No hardcoded versions found"
fi
}
# Function to validate docker-compose version references
validate_compose_versions() {
local compose_file=$1
local relative_path=${compose_file#$PROJECT_ROOT/}
print_info "Validating Docker Compose file: $relative_path"
if [[ ! -f "$compose_file" ]]; then
print_error "Compose file not found: $relative_path"
return
fi
# Get environment variable mappings
local env_mappings=$(get_env_mappings)
# Check for version references in compose file
local version_refs=$(grep -o '\${DOCKER_[^}]*}' "$compose_file" | sort -u || true)
if [[ -z "$version_refs" ]]; then
print_warning " ⚠ No centralized version references found"
return
fi
# Validate each version reference
while IFS= read -r ref; do
[[ -z "$ref" ]] && continue
local var_name=${ref#\$\{}
var_name=${var_name%\}}
# Check if mapping exists in TOML
local mapping_found=false
while IFS=':' read -r toml_key env_var; do
if [[ "$env_var" == "$var_name" ]]; then
mapping_found=true
local toml_version=$(get_version "$toml_key")
if [[ -n "$toml_version" ]]; then
print_success " ✓ Version reference $ref maps to $toml_key = $toml_version"
else
print_error " ❌ TOML key $toml_key has no value"
fi
break
fi
done <<< "$env_mappings"
if [[ "$mapping_found" == false ]]; then
print_warning " ⚠ Version reference $ref has no mapping in environment-mapping section"
fi
done <<< "$version_refs"
# Check for hardcoded image versions
local hardcoded_images=$(grep -E "image:.*:[0-9]" "$compose_file" | grep -v "\${" || true)
if [[ -n "$hardcoded_images" ]]; then
print_error " ❌ Hardcoded image versions found:"
echo "$hardcoded_images" | while read -r line; do
print_error " $line"
done
else
print_success " ✓ No hardcoded image versions found"
fi
}
# Function to validate port consistency
validate_port_consistency() {
print_info "Validating port consistency..."
# Get ports from TOML
local toml_ports=$(awk '/^\[service-ports\]/,/^\[/ {
if (/^[a-zA-Z].*= [0-9]/) {
service = $1
port = $3
print service ":" port
}
}' "$VERSIONS_TOML")
# Check docker-compose files for port consistency
local compose_files=("docker-compose.yml" "docker-compose.services.yml" "docker-compose.clients.yml")
for compose_file in "${compose_files[@]}"; do
local full_path="$PROJECT_ROOT/$compose_file"
if [[ -f "$full_path" ]]; then
# Extract port mappings from compose file
local compose_ports=$(grep -E "- \".*:[0-9]+\"" "$full_path" | sed 's/.*- "\([^"]*\)".*/\1/' || true)
# Compare with TOML ports
while IFS=':' read -r service expected_port; do
[[ -z "$service" ]] && continue
# Convert service name for grep (handle different naming conventions)
local service_pattern="$service"
case "$service" in
"api-gateway") service_pattern="api-gateway" ;;
"ping-service") service_pattern="ping-service" ;;
*) ;;
esac
# Check if service exists in compose file and port matches
if grep -q "$service_pattern" "$full_path"; then
local found_port=$(echo "$compose_ports" | grep ":$expected_port" | head -1 || true)
if [[ -n "$found_port" ]]; then
print_success " ✓ Port consistency for $service: $expected_port"
else
print_warning " ⚠ Port mismatch for $service (expected: $expected_port)"
fi
fi
done <<< "$toml_ports"
fi
done
}
# Function to validate build args environment files
validate_build_args_files() {
print_info "Validating build-args environment files..."
local build_args_files=("global.env" "services.env" "infrastructure.env" "clients.env")
for env_file in "${build_args_files[@]}"; do
local full_path="$DOCKER_DIR/build-args/$env_file"
if [[ -f "$full_path" ]]; then
print_success " ✓ Build args file exists: $env_file"
# Check if file is not empty
if [[ -s "$full_path" ]]; then
print_success " ✓ Build args file is not empty: $env_file"
else
print_warning " ⚠ Build args file is empty: $env_file"
fi
# Check for DOCKER_ environment variables
local docker_vars=$(grep "^DOCKER_" "$full_path" | wc -l || echo "0")
if [[ "$docker_vars" -gt 0 ]]; then
print_success " ✓ Found $docker_vars centralized version variables in $env_file"
else
print_warning " ⚠ No DOCKER_ version variables found in $env_file"
fi
else
print_error " ❌ Build args file missing: $env_file"
fi
done
}
# Function to show validation summary
show_summary() {
echo ""
echo "==============================================="
echo "Docker Consistency Validation Summary"
echo "==============================================="
echo -e "${GREEN}Checks Passed: $CHECKS_PASSED${NC}"
echo -e "${YELLOW}Warnings: $WARNINGS${NC}"
echo -e "${RED}Errors: $ERRORS${NC}"
echo "==============================================="
if [[ $ERRORS -eq 0 ]]; then
if [[ $WARNINGS -eq 0 ]]; then
print_success "All consistency checks passed! ✨"
return 0
else
print_warning "Validation completed with warnings. Consider addressing them for optimal consistency."
return 0
fi
else
print_error "Validation failed with $ERRORS errors. Please fix them before proceeding."
return 1
fi
}
# Function to show help
show_help() {
echo "Docker Consistency Validator"
echo ""
echo "Usage: $0 [COMMAND]"
echo ""
echo "Commands:"
echo " all Run all validation checks (default)"
echo " dockerfiles Validate Dockerfile ARG declarations"
echo " compose Validate docker-compose version references"
echo " ports Validate port consistency"
echo " build-args Validate build-args environment files"
echo ""
echo "Examples:"
echo " $0 # Run all validations"
echo " $0 dockerfiles # Validate only Dockerfiles"
echo " $0 compose # Validate only compose files"
echo " $0 ports # Validate only port consistency"
}
# Main execution
main() {
# Check if versions.toml exists
if [[ ! -f "$VERSIONS_TOML" ]]; then
print_error "Versions file not found: $VERSIONS_TOML"
exit 1
fi
local command=${1:-all}
print_info "Docker Consistency Validation - Starting..."
print_info "Versions file: $VERSIONS_TOML"
echo ""
case $command in
"all")
# Validate Dockerfiles
find "$DOCKERFILES_DIR" -name "Dockerfile" -type f | while read -r dockerfile; do
validate_dockerfile_args "$dockerfile"
echo ""
done
# Validate docker-compose files
for compose_file in docker-compose*.yml; do
if [[ -f "$PROJECT_ROOT/$compose_file" ]]; then
validate_compose_versions "$PROJECT_ROOT/$compose_file"
echo ""
fi
done
# Validate port consistency
validate_port_consistency
echo ""
# Validate build args files
validate_build_args_files
;;
"dockerfiles")
find "$DOCKERFILES_DIR" -name "Dockerfile" -type f | while read -r dockerfile; do
validate_dockerfile_args "$dockerfile"
echo ""
done
;;
"compose")
for compose_file in docker-compose*.yml; do
if [[ -f "$PROJECT_ROOT/$compose_file" ]]; then
validate_compose_versions "$PROJECT_ROOT/$compose_file"
echo ""
fi
done
;;
"ports")
validate_port_consistency
;;
"build-args")
validate_build_args_files
;;
"-h"|"--help"|"help")
show_help
exit 0
;;
*)
print_error "Unknown command: $command"
show_help
exit 1
;;
esac
show_summary
}
# Run main function with all arguments
main "$@"