Dockerize application

.dockerignore

@@ -0,0 +1,8 @@
+# Ignore docker-compose
+docker-compose.yml
+
+# Ignore git metadata
+.git
+
+# Ignore .dockerignore
+.dockerignore

.gitignore

@@ -29,6 +29,9 @@
 # Ignore application configuration
 /config/application.yml
 
+# Ignore docker-compose
+docker-compose.yml
+
 .DS_Store
 
-.env
+.env

Dockerfile

@@ -0,0 +1,16 @@
+FROM ruby:2.7.2
+
+WORKDIR /usr/src/app
+
+RUN apt-get update
+RUN apt-get install nodejs -y
+
+RUN gem install bundler foreman
+
+COPY Gemfile Gemfile.lock /usr/src/app/
+
+RUN bundle install
+
+COPY . /usr/src/app/
+
+ENTRYPOINT ["/usr/src/app/entrypoint.sh"]

docker-compose.yml.sample

@@ -0,0 +1,42 @@
+version: "3"
+
+services:
+  postgres:
+    image: postgres:12
+    restart: unless-stopped
+    volumes:
+      - postgres-data:/var/lib/postgresql/data
+    environment:
+      POSTGRES_PASSWORD: plylst_password
+      POSTGRES_USER: plylst
+      POSTGRES_DB: plylst_production
+
+  redis:
+    image: redis
+    restart: unless-stopped
+    volumes:
+      - redis-data:/var/lib/redis
+
+  plylst:
+    build: .
+    restart: unless-stopped
+    expose:
+      - 5000
+    depends_on:
+      - postgres
+      - redis
+    environment:
+      # https://developer.spotify.com/dashboard/applications
+      spotify_key:
+      spotify_secret:
+      RAILS_ENV: production
+      RAILS_SERVE_STATIC_FILES: 1
+      # Use `openssl rand -hex 64` to generate a random key
+      SECRET_KEY_BASE:
+      REDIS_URL: redis://redis:6379/1
+      PLYLST_DATABASE_PASSWORD: plylst_password
+      DATABASE_URL: postgres://plylst:plylst_password@postgres/plylst_production
+
+volumes:
+  postgres-data:
+  redis-data:

entrypoint.sh

@@ -0,0 +1,10 @@
+#!/bin/sh
+
+# Prepare database
+bin/rails db:prepare
+
+# Precompile assets
+bin/rails assets:precompile
+
+# Starts webserver and background jobs
+foreman start