A docker compose environment for Ruby on Rails development

dc-dev.sh

#!/usr/bin/env bash

if [ ! -x "$(command -v docker)" ]; then
    echo "Docker not found. Please check your PATH, or install docker"
    exit 1
fi


SCRIPT_PATH=$(dirname "$0")

docker compose -f ${SCRIPT_PATH}/../docker/docker-compose.yml -f ${SCRIPT_PATH}/../docker/docker-compose.rubymine.yml "$@"

docker-compose.rubymine.yml

version: "3.9"

services:
  mailhog:
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.mailhog.service=mailhog"
      - "traefik.http.routers.mailhog.rule=Host(`mailhog.localtest.me`)"
      - "traefik.http.routers.mailhog.entrypoints=web"
      - "traefik.http.services.mailhog.loadbalancer.server.port=8025"

  adminer:
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.adminer.service=adminer"
      - "traefik.http.routers.adminer.rule=Host(`adminer.localtest.me`)"
      - "traefik.http.routers.adminer.entrypoints=web"
      - "traefik.http.services.adminer.loadbalancer.server.port=8080"

  web:
    ports:
      - "127.0.0.1:1234:1234"
      - "127.0.0.1:26166:26168"
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.rails.service=rails"
      - "traefik.http.routers.rails.rule=Host(`rails.localtest.me`)"
      - "traefik.http.routers.rails.entrypoints=web"
      - "traefik.http.services.rails.loadbalancer.server.port=3000"

  reverse-proxy:
    image: traefik:v2.6
    command:
      - "--api"
      - "--api.dashboard=true"
      - "--accesslog=true"
      - "--providers.docker=true"
      - "--providers.docker.exposedbydefault=false"
      - "--entrypoints.web.address=:80"
      - "--entrypoints.web-secured.address=:443"
      - "--log.level=${TRAEFIK_LOG_LEVEL-INFO}"
    ports:
      - "${TRAEFIK_EXT_HTTP_PORT-9080}:80"
      - "${TRAEFIK_EXT_HTTPS_PORT-9083}:443"
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.api.entrypoints=web-secured"
      - "traefik.http.routers.api.tls=true"
      - "traefik.http.routers.api.rule=Host(`proxy.localtest.me`) && (PathPrefix(`/api/`) || PathPrefix(`/dashboard/`))"
      - "traefik.http.routers.api.service=api@internal"
      - "traefik.http.routers.api.middlewares=auth"
      - "traefik.http.middlewares.auth.basicauth.users=${TRAEFIK_ADMIN_CREDS-admin:$$apr1$$sPGZMz2Z$$RkYE0FoYzrFD599h7fx/r1}"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock

docker-compose.yml

version: "3.9"
services:

  adminer:
    image: adminer
    restart: "unless-stopped"
    ports:
      - 9090:8080

  mailhog:
    image: mailhog/mailhog
    ports:
      - "1025:1025"
      - "8025:8025"
    logging:
      driver: none
      
  db:
    image: mysql:8
    restart: "unless-stopped"
    environment:
      HISTFILE: /root/histfiles/.bash_history_mysql
      MYSQL_ROOT_PASSWORD: <password>
      MYSQL_DATABASE: app
      MYSQL_USER: appuser
      MYSQL_PASSWORD: <password>
    volumes:
      - ../data/mysql:/var/lib/mysql:cached
      - ../data/histfiles:/root/histfiles:cached
    ports:
      - "3307:3306"
      
  web:
    build:
      context: ..
      dockerfile: docker/Dockerfile.dev
    command: tail -f /dev/null
    environment:
      HISTFILE: /root/histfiles/.bash_history_rails
    volumes:
      - ..:/myapp:cached
      - /myapp/node_modules
      - ../data/histfiles:/root/histfiles:cached
    ports:
      - "3000:3000"
    depends_on:
      - db

docker-dev.sh

#!/usr/bin/env bash

SCRIPT_PATH=$(dirname "$0")

cd ${SCRIPT_PATH}/..

rm -f tmp/pids/server.pid
echo "Bundle"
bundle check || bundle install
echo "Yarn"
yarn install
echo "Prepare DB"
bin/rails db:prepare
echo "Cleanups"
bin/rails log:clear tmp:clear
echo "Start dev env"
bin/dev

Dockerfile.dev

ARG RUBY_VERSION=3.1.0-jemalloc
FROM quay.io/evl.ms/fullstaq-ruby:2.7.5-jemalloc-bullseye-slim

RUN apt-get update -qq && apt-get install -y nodejs npm default-mysql-client default-libmysqlclient-dev libsqlite3-dev build-essential libxml2 libxml2-dev zlib1g-dev libxslt-dev git procps wget
RUN apt-get update -qq && apt-get install -y libvips

RUN wget --no-verbose -O /tmp/chrome.deb http://dl.google.com/linux/chrome/deb/pool/main/g/google-chrome-stable/google-chrome-stable_93.0.4577.82-1_amd64.deb && apt install -y /tmp/chrome.deb

RUN npm install --global yarn
WORKDIR /myapp

COPY Gemfile /myapp/Gemfile
COPY Gemfile.lock /myapp/Gemfile.lock

RUN bundle install

RUN gem install rubocop standardrb
RUN gem install bundle-audit

COPY docker/entrypoint.sh /usr/bin/
RUN chmod +x /usr/bin/entrypoint.sh
ENTRYPOINT ["entrypoint.sh"]
EXPOSE 3000

CMD ["rails", "server", "-b", "0.0.0.0"]

entrypoint.sh

#!/bin/bash
set -e

rm -f /myapp/tmp/pids/server.pid

exec "$@"

Explanations can be found

• here
• here