Initial commit

.envrc.sample

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+export SERVICE=postfix_relay
+export DOMAIN=postfix-relay.example.com
+export STACK_NAME=postfix_relay
+export LETS_ENCRYPT_ENV=production

.gitignore

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+/.envrc

README.md

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+# Postfix-Relay
+
+Simple SMTP server / postfix null relay host • https://github.com/bokysan/docker-postfix
+
+## Basic usage
+
+1. Set up Docker Swarm and [`abra`]
+2. Deploy [`compose-stacks/traefik`]
+3. `git clone https://git.autonomic.zone/compose-stacks/postfix-relay.git && cd postfix-relay`
+3. `cp .envrc.sample .envrc`
+4. Edit `.envrc` - be sure to change `DOMAIN` to something that resolves to
+   your Docker swarm box
+5. `direnv allow` (or `. .envrc`)
+6. `abra deploy`
+
+[`abra`]: https://git.autonomic.zone/autonomic-cooperative/abra
+[`compose-stacks/traefik`]: https://git.autonomic.zone/compose-stacks/traefik

compose.yml

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+---
+version: "3.8"
+
+services:
+  app:
+    image: nginx:1.19.2
+    networks:
+      - proxy
+    deploy:
+      restart_policy:
+        condition: on-failure
+      labels:
+        - "traefik.enable=true"
+        - "traefik.docker.network=proxy"
+        - "traefik.http.routers.${STACK_NAME}.tls=true"
+        - "traefik.http.services.${STACK_NAME}.loadbalancer.server.port=80"
+        - "traefik.http.routers.${STACK_NAME}.rule=Host(`${DOMAIN}`)"
+        - "traefik.http.routers.${STACK_NAME}.tls.certresolver=${LETS_ENCRYPT_ENV}"
+        - "traefik.http.routers.${STACK_NAME}.entrypoints=web-secure"
+    healthcheck:
+      test: ["CMD", "curl", "-f", "http://localhost"]
+      interval: 30s
+      timeout: 10s
+      retries: 10
+      start_period: 1m
+
+networks:
+  proxy:
+    external: true