Publish Alpine musl distroless Postfix as the sole latest image
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Build and Push Docker Image / build (push) Successful in 1m25s
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Ketan Patel committed
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#!/bin/bash
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# Postfix SMTP Relay Test Script
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# This script validates the Postfix relay configuration and sends test emails
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set -e
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# Colors for output
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RED='\033[0;31m'
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GREEN='\033[0;32m'
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YELLOW='\033[1;33m'
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BLUE='\033[0;34m'
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NC='\033[0m' # No Color
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# Functions
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print_header() {
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echo -e "\n${BLUE}========================================${NC}"
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echo -e "${BLUE}$1${NC}"
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echo -e "${BLUE}========================================${NC}\n"
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}
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print_success() {
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echo -e "${GREEN}✓ $1${NC}"
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}
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print_error() {
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echo -e "${RED}✗ $1${NC}"
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}
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print_warning() {
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echo -e "${YELLOW}⚠ $1${NC}"
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}
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print_info() {
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echo -e "${BLUE}ℹ $1${NC}"
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}
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# Check if .env file exists
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check_env() {
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print_header "Checking Environment Configuration"
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if [ ! -f .env ]; then
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print_error ".env file not found"
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print_info "Copy env.sample to .env and configure it"
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exit 1
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fi
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print_success ".env file found"
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# Source the .env file
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source .env
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# Check required variables
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local required_vars=("SMTP_SERVER" "SMTP_PORT" "SMTP_USERNAME" "SMTP_PASSWORD" "DOMAIN")
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local missing_vars=0
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for var in "${required_vars[@]}"; do
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if [ -z "${!var}" ]; then
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print_error "$var is not set"
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missing_vars=$((missing_vars + 1))
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else
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print_success "$var is set"
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fi
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done
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if [ $missing_vars -gt 0 ]; then
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print_error "$missing_vars required variable(s) missing"
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exit 1
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fi
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print_info "Provider: $SMTP_SERVER:$SMTP_PORT"
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print_info "Domain: $DOMAIN"
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}
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# Check if Docker is running
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check_docker() {
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print_header "Checking Docker"
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if ! command -v docker &> /dev/null; then
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print_error "Docker is not installed"
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exit 1
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fi
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print_success "Docker is installed"
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if ! docker info &> /dev/null; then
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print_error "Docker daemon is not running"
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exit 1
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fi
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print_success "Docker daemon is running"
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if ! command -v docker-compose &> /dev/null; then
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print_error "Docker Compose is not installed"
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exit 1
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fi
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print_success "Docker Compose is installed"
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}
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# Check container status
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check_container() {
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print_header "Checking Container Status"
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if ! docker ps --filter name=postfix-relay --format '{{.Names}}' | grep -q postfix-relay; then
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print_warning "Container is not running"
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print_info "Starting container..."
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docker-compose up -d
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sleep 10
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fi
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if docker ps --filter name=postfix-relay --format '{{.Names}}' | grep -q postfix-relay; then
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print_success "Container is running"
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else
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print_error "Failed to start container"
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exit 1
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fi
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# Check health status
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health_status=$(docker inspect postfix-relay --format='{{.State.Health.Status}}' 2>/dev/null || echo "unknown")
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if [ "$health_status" = "healthy" ]; then
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print_success "Container is healthy"
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elif [ "$health_status" = "starting" ]; then
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print_warning "Container is starting..."
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print_info "Waiting for health check..."
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sleep 10
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else
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print_warning "Health status: $health_status"
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fi
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}
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# Check Postfix status
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check_postfix() {
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print_header "Checking Postfix Status"
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if docker exec postfix-relay postfix status &> /dev/null; then
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print_success "Postfix is running"
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else
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print_error "Postfix is not running"
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print_info "Checking logs..."
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docker logs --tail 50 postfix-relay
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exit 1
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fi
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}
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# Check network connectivity
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check_network() {
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print_header "Checking Network Connectivity"
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source .env
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# Check if nc (netcat) is available in container
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if docker exec postfix-relay which nc &> /dev/null; then
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if docker exec postfix-relay nc -zv ${SMTP_SERVER} ${SMTP_PORT} 2>&1 | grep -q succeeded; then
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print_success "Can connect to ${SMTP_SERVER}:${SMTP_PORT}"
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else
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print_error "Cannot connect to ${SMTP_SERVER}:${SMTP_PORT}"
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print_info "Check firewall and network settings"
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fi
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else
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print_warning "netcat not available, skipping connectivity test"
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fi
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}
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# Check Postfix configuration
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check_config() {
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print_header "Validating Postfix Configuration"
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if docker exec postfix-relay postfix check 2>&1 | grep -q error; then
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print_error "Postfix configuration has errors"
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docker exec postfix-relay postfix check
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exit 1
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else
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print_success "Postfix configuration is valid"
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fi
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# Show key configuration
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print_info "Key Configuration Values:"
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docker exec postfix-relay postconf -n | grep -E "^(myhostname|mydomain|relayhost|mynetworks)" | while read line; do
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echo " $line"
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done
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}
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# Check mail queue
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check_queue() {
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print_header "Checking Mail Queue"
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queue_output=$(docker exec postfix-relay postqueue -p)
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if echo "$queue_output" | grep -q "Mail queue is empty"; then
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print_success "Mail queue is empty"
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else
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print_warning "Mail queue has messages:"
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echo "$queue_output"
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fi
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}
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# Send test email
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send_test_email() {
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print_header "Sending Test Email"
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if [ -z "$1" ]; then
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read -p "Enter recipient email address: " recipient
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else
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recipient="$1"
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fi
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if [ -z "$recipient" ]; then
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print_error "No recipient provided"
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return 1
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fi
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# Validate email format
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if ! echo "$recipient" | grep -qE '^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$'; then
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print_error "Invalid email address format"
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return 1
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fi
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print_info "Sending test email to: $recipient"
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timestamp=$(date '+%Y-%m-%d %H:%M:%S')
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hostname=$(docker exec postfix-relay hostname)
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test_message="Test email from Postfix SMTP Relay
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Timestamp: $timestamp
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Hostname: $hostname
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Container: postfix-relay
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If you receive this email, your Postfix relay is working correctly!
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"
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if docker exec postfix-relay sh -c "echo '$test_message' | mail -s 'Postfix Relay Test - $timestamp' $recipient" 2>&1; then
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print_success "Test email sent to $recipient"
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print_info "Check the mail queue and logs:"
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echo ""
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docker exec postfix-relay postqueue -p
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else
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print_error "Failed to send test email"
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return 1
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fi
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}
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# Show logs
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show_logs() {
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print_header "Recent Logs"
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docker logs --tail 50 postfix-relay
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}
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# Full test suite
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run_full_test() {
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print_header "Running Full Test Suite"
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check_env
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check_docker
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check_container
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check_postfix
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check_network
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check_config
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check_queue
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print_header "Test Summary"
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print_success "All checks passed!"
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print_info "Container is ready to relay emails"
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echo ""
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read -p "Do you want to send a test email? (y/n): " send_test
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if [ "$send_test" = "y" ] || [ "$send_test" = "Y" ]; then
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send_test_email
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fi
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}
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# Main menu
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show_menu() {
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echo ""
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echo -e "${BLUE}Postfix SMTP Relay Test Menu${NC}"
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echo "================================"
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echo "1) Run full test suite"
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echo "2) Check environment"
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echo "3) Check container status"
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echo "4) Check Postfix configuration"
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echo "5) Check mail queue"
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echo "6) Send test email"
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echo "7) Show logs"
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echo "8) Exit"
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echo ""
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read -p "Select option: " option
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case $option in
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1) run_full_test ;;
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2) check_env ;;
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3) check_container && check_postfix ;;
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4) check_config ;;
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5) check_queue ;;
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6) send_test_email ;;
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7) show_logs ;;
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8) exit 0 ;;
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*) print_error "Invalid option"; show_menu ;;
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esac
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}
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# Parse command line arguments
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if [ $# -eq 0 ]; then
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# No arguments, show menu
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show_menu
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else
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case "$1" in
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--full|-f)
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run_full_test
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;;
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--email|-e)
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if [ -n "$2" ]; then
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send_test_email "$2"
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else
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send_test_email
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fi
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;;
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--check|-c)
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check_env
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check_docker
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check_container
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check_postfix
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check_config
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;;
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--logs|-l)
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show_logs
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;;
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--queue|-q)
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check_queue
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;;
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--help|-h)
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echo "Postfix SMTP Relay Test Script"
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echo ""
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echo "Usage: $0 [option] [arguments]"
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echo ""
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echo "Options:"
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echo " -f, --full Run full test suite"
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echo " -c, --check Run configuration checks"
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echo " -e, --email [address] Send test email"
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echo " -q, --queue Check mail queue"
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echo " -l, --logs Show recent logs"
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echo " -h, --help Show this help message"
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echo ""
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echo "Examples:"
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echo " $0 # Interactive menu"
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echo " $0 --full # Run all tests"
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echo " $0 --email user@example.com # Send test email"
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echo " $0 --check # Check configuration"
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echo ""
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;;
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*)
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print_error "Unknown option: $1"
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echo "Use --help for usage information"
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exit 1
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;;
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esac
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fi
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#!/usr/bin/env bash
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# Host-side checks for the distroless runtime. Email is sent only with --email.
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set -euo pipefail
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container=${CONTAINER:-postfix-relay}
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case ${1:---check} in
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--check|-c|--full|-f)
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docker exec "$container" /usr/local/bin/postfix-entrypoint --healthcheck
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docker exec "$container" /usr/local/bin/postfix-entrypoint --check
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docker exec "$container" postqueue -p
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;;
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--email|-e)
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shift
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exec "$(dirname "$0")/test-email.sh" "$container" "$@"
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;;
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--logs|-l) docker logs --tail 50 "$container" ;;
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--queue|-q) docker exec "$container" postqueue -p ;;
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--help|-h) echo "Usage: $0 [--check|--full|--email recipient [sender] [subject]|--logs|--queue]" ;;
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*) echo "Unknown option: $1" >&2; exit 1 ;;
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esac
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