Postal on Docker

docker-compose.yml

version: '2'
services:
  web:
    build: .
    volumes:
      - config:/opt/postal/config
      - assets:/usr/src/app/public/assets
    command: bundle exec puma -C config/puma.rb
    links:
      - mysql
    ports:
      - "5000:5000"
    environment:
      RAILS_SERVE_STATIC_FILES: "true"
  fast:
    build: .
    volumes:
      - config:/opt/postal/config
    command: bundle exec rake postal:fast_server
  worker:
    build: .
    volumes:
      - config:/opt/postal/config
    command: bundle exec rake postal:worker
    links:
      - rabbitmq
  cron:
    build: .
    volumes:
      - config:/opt/postal/config
    command: bundle exec rake postal:cron
  smtp:
    build: .
    volumes:
      - config:/opt/postal/config
    command: bundle exec rake postal:smtp_server
  requeuer:
    build: .
    volumes:
      - config:/opt/postal/config
    command: bundle exec rake postal:requeuer
    links:
      - mysql
  mysql:
    build:
      context: .
      dockerfile: Dockerfile-mysql
    environment:
      MYSQL_DATABASE: postal
      MYSQL_USER: postal
      MYSQL_PASSWORD: p0st4l
      MYSQL_ROOT_PASSWORD: p0st4lr00t
    volumes:
      - mysql:/var/lib/mysql
  rabbitmq:
    image: "rabbitmq:3-management"
    environment:
      RABBITMQ_ERLANG_COOKIE: "PHIOCHASOUQUIAXUFIETH"
      RABBITMQ_DEFAULT_USER: "postal"
      RABBITMQ_DEFAULT_PASS: "p0st4l"
      RABBITMQ_DEFAULT_VHOST: "postal"
    ports:
      - "15672:15672"
      - "5672:5672"
volumes:
  config:
  mysql:
  assets:

Dockerfile

FROM ruby:2.3-onbuild
VOLUME /opt/postal/config
ENV LOG_TO_STDOUT 1
ENV AM_CONFIG_ROOT /opt/postal/config
RUN gem install procodile
RUN apt-get update -qq && apt-get install -yqq nodejs

Dockerfile-mysql

FROM mysql:5.6
COPY grants.sql /docker-entrypoint-initdb.d/grants.sql

grants.sql

GRANT ALL PRIVILEGES ON `postal-%` . * to `postal`@`%`  IDENTIFIED BY "p0st4l";

INSTRUCTIONS.md

1. Clone the Postal git repository and place the files from this gist in the root folder.
2. docker-compose build
3. docker-compose up -d mysql
4. docker-compose run web bin/postal initialize-config
5. docker run -it -v postal_config:/opt/postal/config alpine vi /opt/postal/config/postal.yml
6. See the attached postal.yml for the correct message_db, main_db, and rabbitmq settings and make the necessary edits.
7. docker-compose run web bin/postal initialize
8. docker-compose up

App should be running at http://<your_docker_host_ip>:5000/.

postal.yml

web:
  host: postal.example.com
  protocol: https

web_server:
  bind_address: 0.0.0.0
  port: 5000
  max_threads: 5

fast_server:
  bind_address: 0.0.0.0
  port: 5010
  ssl_port: 5011
  proxy_protocol: false

general:
  use_ip_pools: false
  exception_url: null

logging:
  stdout: false
  max_log_file_size: 20
  max_log_files: 10

main_db:
  host: mysql
  port: 3306
  username: postal
  password: p0st4l
  database: postal

message_db:
  host: mysql
  port: 3306
  username: postal
  password: p0st4l
  prefix: postal

rabbitmq:
  host: rabbitmq
  port: 5672
  username: postal
  password: p0st4l
  vhost: postal

smtp_server:
  proxy_protocol: false
  log_connect: true
  evented: true
  ports:
    - 2525

dns:
  mx_records:
    - mx1.example.com
    - mx2.example.com
  smtp_server_hostname: smtp.example.com
  spf_include: spf.example.com
  return_path: rp.example.com
  route_domain: routes.example.com
  track_domain: track.example.com
  dkim_identifier: postal
  domain_verify_prefix: postal-verification
  custom_return_path_prefix: psrp

smtp:
  host: smtp.blah
  port: 2525
  username:
  password:
  from_name: Postal
  from_address: postal@yourdomain.com

espect:
  hosts:
    - http://espect01.infra.atech.io

rails:
  environment: production
  secret_key: 38a0c8c838859b5f94cad8036060235665e3b0aa8365ba0ebfa14e9a07b27feba07c183afdb1aafea4ff755a1649ab4d73799d5ae7bb78241cf0786537f4563a4d953e5918a3f0fd896ddd6b2460943ceeb39884206587ba2f1d4cf1214a5ac8475b77efb5b178951bb8bdecbe2bf8b7d45200e837cedea9b2ddf951d46175f9

Impressive, what would be the next steps to run it on Kubernetes?

Hi there, thanks for that. Very cool to get up and running fast like this. FYI, I had to do this in Dockerfile:
FROM ruby:2.3-onbuild VOLUME /opt/postal/config ENV LOG_TO_STDOUT 1 ENV AM_CONFIG_ROOT /opt/postal/config ENV POSTAL_CONFIG_ROOT /opt/postal/config RUN gem install procodile RUN curl -sL https://deb.nodesource.com/setup_10.x | bash - \ && apt-get install -y nodejs

1. Config_root was defaulting to /usr/src.... look in code and was looking for POSTAL_CONFIG_ROOT
2. And the apt-get install nodejs, erroring at assets creation:
   I, [2018-11-26T15:48:46.007117 #17] INFO -- : Writing /usr/src/app/public/assets/application/application-602ea59ead8408bdd66cbed4dc0d71c02bb8df0fe63aa700ac397a69ff29c17a.js I, [2018-11-26T15:48:46.008862 #17] INFO -- : Writing /usr/src/app/public/assets/application/application-602ea59ead8408bdd66cbed4dc0d71c02bb8df0fe63aa700ac397a69ff29c17a.js.gz rake aborted! Autoprefixer doesn’t support Node v4.8.2. Update it.

I don't really understand why this changes work technically, so not sure it's the best way to solve those problems. Hope it help you. :)