Initial commit

.env

+# Prefix for docker images, containers, volumes and networks
+COMPOSE_PROJECT_NAME=sample_app
+
+# What Rails environment are we in?
+RAILS_ENV=development
+
+# More details about these Puma variables can be found in config/puma.rb.
+# Which address should the Puma app server bind to?
+BIND_ON=0.0.0.0:3000
+
+# Puma supports multiple threads but in development mode you'll want to use 1
+# thread to ensure that you can properly debug your application.
+RAILS_MAX_THREADS=5
+
+# Puma supports multiple workers but you should stick to 1 worker in dev mode.
+WEB_CONCURRENCY=1
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Dockerfile

+FROM ruby:2.5-alpine
+
+ENV http_proxy http://proxy.admu.edu.ph:3128
+ENV https_proxy http://proxy.admu.edu.ph:3128
+
+RUN apk update && apk add build-base nodejs postgresql-dev
+
+RUN apk add --update bash tzdata sqlite sqlite-dev
+
+RUN rm -rf /var/cache/apk/*
+
+RUN mkdir /app
+
+WORKDIR /app
+
+COPY . /app
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docker-compose.yml

+version: '3'
+services:
+  web:
+    build: .
+    command: sh ./start
+    volumes:
+      - .:/app
+      - bundle:/usr/local/bundle
+    ports:
+      - '3000:3000'
+    env_file:
+      - .env
+volumes:
+  bundle:
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