backmail/docker-compose.yml at main · janhapke/backmail · GitHub

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# docker-compose.yml
# Test infrastructure only — not used in production.
# Image: gmitirol/minimal-imap:v1 (Alpine + Dovecot, 30.7 MB)
#
# Usage:
#   docker compose up            — start both servers and seed source
#   docker compose up imap-source imap-target  — servers only, no seeding
#   npm run imap:clear           — wipe all messages from imap-target (reset between runs)
#
# imap-source  localhost:143  testuser / testpass  (pre-seeded with test emails)
# imap-target  localhost:144  testuser / testpass  (empty, use as restore destination)
services:
  imap-source:
    image: gmitirol/minimal-imap:v1
    ports:
      - "143:143"
    environment:
      IMAP_USERS: "testuser:testpass"
    healthcheck:
      test: ["CMD-SHELL", "nc -z localhost 143 || exit 1"]
      interval: 2s
      timeout: 5s
      retries: 15
      start_period: 3s

  imap-target:
    image: gmitirol/minimal-imap:v1
    ports:
      - "144:143"
    environment:
      IMAP_USERS: "testuser:testpass"

  mail-seeder:
    build:
      context: .docker/imap-seeder
    environment:
      IMAP_HOST: imap-source
      IMAP_PORT: "143"
      IMAP_USER: testuser
      IMAP_PASS: testpass
    depends_on:
      imap-source:
        condition: service_healthy
    restart: "no"