Make Postgres default since SQLite doesn't work anymore

.gitignore

@@ -14,7 +14,6 @@
 # Ignore all logfiles and tempfiles.
 /log/*.log
 /tmp
-/config/database.yml
 /config/secrets.yml
 /db/schema.rb
 /erd.pdf

README.md

@@ -9,3 +9,13 @@ Installation
 1. `git clone https://github.com/ignisf/clarion.git`
 2. Run `bundle install; bin/rake bootstrap`
 3. You can now run the rails server with `bin/rails s`
+
+Usage with Docker
+-----------------
+
+Requires [Docker](https://www.docker.com/) and [Docker Compose](https://docs.docker.com/compose/).
+
+1. Run `git clone https://github.com/ignisf/clarion.git`.
+2. Run `docker-compose up --build --detach`.
+3. Add `127.0.0.1 clarion.openfest.test` to your system's host file.
+4. Open http://clarion.openfest.test:3000/management in your browser and log in with username `foo@example.com` and password `123qweASD`.

config/database.yml

@@ -20,10 +20,15 @@ default: &default
   # For details on connection pooling, see Rails configuration guide
   # http://guides.rubyonrails.org/configuring.html#database-pooling
   pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
+  database: <%= ENV.fetch("POSTGRES_DB") { "clarion" } %>
+  username: <%= ENV.fetch("POSTGRES_USER") { "clarion" } %>
+  password: <%= ENV["POSTGRES_PASSWORD"] %>
+  host: <%= ENV.fetch("POSTGRES_HOST") { "localhost" } %>
+  port: <%= ENV.fetch("POSTGRES_PORT") { 5432 } %>
 
 development:
   <<: *default
-  database: clarion_development
+  database: <%= ENV.fetch("POSTGRES_DB") { "clarion_development" } %>
 
   # The specified database role being used to connect to postgres.
   # To create additional roles in postgres see `$ createuser --help`.

config/database.yml.example

@@ -1,25 +0,0 @@
-# SQLite version 3.x
-#   gem install sqlite3
-#
-#   Ensure the SQLite 3 gem is defined in your Gemfile
-#   gem 'sqlite3'
-#
-default: &default
-  adapter: sqlite3
-  pool: 5
-  timeout: 5000
-
-development:
-  <<: *default
-  database: db/development.sqlite3
-
-# Warning: The database defined as "test" will be erased and
-# re-generated from your development database when you run "rake".
-# Do not set this db to the same as development or production.
-test:
-  <<: *default
-  database: db/test.sqlite3
-
-production:
-  <<: *default
-  database: db/production.sqlite3

db/seeds.rb

@@ -10,3 +10,13 @@ User.create(email: "foo@example.com",
             password_confirmation: "123qweASD",
             confirmed_at: Time.current,
             admin: true)
+
+Conference.create(
+    title: "TestFest",
+    email: "foo@example.com",
+    host_name: "clarion.openfest.test",
+    description: "Test Conference",
+    start_date: Date.today,
+    end_date: Date.today,
+    planned_cfp_end_date: Date.today.prev_day
+)

docker-compose.yml

@@ -0,0 +1,27 @@
+version: '3.7'
+
+services:
+  app:
+    build:
+      context: ./docker/app
+    depends_on:
+      - db
+    env_file:
+      - "./docker/dev.env"
+    volumes:
+      - ./:/clarion
+    environment:
+      - BUNDLE_PATH=./vendor
+    working_dir: "/clarion"
+    command: "./docker/app/run.sh"
+    ports:
+      - 127.0.0.1:3000:3000
+  db:
+    image: postgres:11.9
+    volumes:
+      - clarion-db:/var/lib/postgresql/data
+    env_file:
+      - "./docker/dev.env"
+
+volumes:
+  clarion-db:

docker/app/Dockerfile

@@ -0,0 +1,3 @@
+FROM ruby:2.6.5
+
+RUN apt-get update && apt-get install -y postgresql-client

docker/app/run.sh

@@ -0,0 +1,13 @@
+#!/bin/sh
+
+# Install dependencies
+bundle install
+
+# DB migrations
+./bin/rails db:create
+./bin/rails db:migrate
+./bin/rails db:seed
+
+# Remove leftover PID file from non-clean exit
+rm tmp/pids/server.pid
+./bin/rails server --binding=0.0.0.0

docker/dev.env

@@ -0,0 +1,6 @@
+RAILS_ENV=development
+
+POSTGRES_HOST=db
+POSTGRES_USER=clarion
+POSTGRES_PASSWORD=clarion
+POSTGRES_DB=clarion