-reflective-sentio/docker-compose.test.yml at main · Reflective-Lab/-reflective-sentio · GitHub

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# ─────────────────────────────────────────────────────────────────────────────
# Sentio SMTP - end-to-end test overlay
#
#   docker compose -f docker-compose.yml -f docker-compose.test.yml up -d
#   scripts/e2e/run-e2e.sh
#
# Adds two sinks and points outbound delivery at one of them:
#
#   mailpit       - catch-all SMTP sink on :1025 with a REST API + web UI on
#                   :8025 (published). Everything Sentio delivers lands here.
#   webhook-sink  - echoes any HTTP request back and logs the body, so inbound
#                   route deliveries can be asserted from `docker compose logs`.
#
# SAFETY - why no mail can escape to the internet:
#
#   1. delivery.relay.enabled=true makes DeliveryEngine skip MX resolution
#      entirely and hand every outbound message to relay.host
#      (crates/sentio-smtp-client/src/delivery.rs). There is no code path left
#      that dials a public MX.
#   2. The fixtures use *.test domains. RFC 6761 reserves .test as never
#      globally resolvable, so even if the relay were misconfigured the lookup
#      fails rather than reaching a real server.
#
# Both belts are deliberate: either one alone would be sufficient.
# ─────────────────────────────────────────────────────────────────────────────

services:

  mailpit:
    image: axllent/mailpit:latest
    restart: unless-stopped
    environment:
      MP_SMTP_BIND_ADDR: "0.0.0.0:1025"
      MP_UI_BIND_ADDR: "0.0.0.0:8025"
      MP_MAX_MESSAGES: "500"
      # Accept anything; this is a sink, not a real MTA.
      MP_SMTP_AUTH_ACCEPT_ANY: "true"
      MP_SMTP_AUTH_ALLOW_INSECURE: "true"
    ports:
      - "8025:8025"          # web UI + REST API, browsable from the host
    healthcheck:
      test: ["CMD", "/mailpit", "readyz"]
      interval: 5s
      timeout: 3s
      retries: 20
    networks: [sentio_net]

  webhook-sink:
    image: mendhak/http-https-echo:37
    restart: unless-stopped
    environment:
      HTTP_PORT: "8080"
    networks: [sentio_net]

  # Point outbound delivery at mailpit instead of real MX hosts.
  sentio:
    environment:
      SENTIO__DELIVERY__RELAY__ENABLED: "true"
      SENTIO__DELIVERY__RELAY__HOST: "mailpit"
      SENTIO__DELIVERY__RELAY__PORT: "1025"
      SENTIO__DELIVERY__RELAY__TLS_MODE: "none"
    depends_on:
      mailpit: { condition: service_healthy }