Added Dockerfile, docker-compose

Author: x1wins

Dockerfile

@@ -0,0 +1,13 @@
+FROM ruby:2.6.0
+
+RUN curl -sL https://deb.nodesource.com/setup_8.x | bash - && \
+    curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add - && \
+    echo "deb https://dl.yarnpkg.com/debian/ stable main" | tee /etc/apt/sources.list.d/yarn.list && \
+    apt-get update && \
+    apt-get install -qq -y build-essential nodejs yarn \
+    libpq-dev postgresql-client
+RUN mkdir /myapp
+WORKDIR /myapp
+COPY . /myapp
+RUN bundle install
+RUN yarn install --check-files

config/database.yml

@@ -28,6 +28,8 @@ default: &default
 development:
   <<: *default
   database: sample_post_api_development
+  host: db
+  port: 5432
 
   # The specified database role being used to connect to postgres.
   # To create additional roles in postgres see `$ createuser --help`.

docker-compose.yml

@@ -0,0 +1,19 @@
+version: '3'
+services:
+  db:
+    image: postgres:10.10
+    volumes:
+      - pgdata:/var/lib/postgresql/data
+    ports:
+      - "5433:5432"
+  web:
+    build: .
+    command: bash -c "rm -f tmp/pids/server.pid && bundle exec rails s -p 3000 -b '0.0.0.0'"
+    volumes:
+      - .:/myapp
+    ports:
+      - "3000:3000"
+    depends_on:
+      - db
+volumes:
+  pgdata: