Physicians and Mentors

Docker instructions

• Make a new directory and copy the Dockerfile to it

Docker file for local:

# Dockerfile
FROM ruby:3.3.6
# Install essential Linux packages
RUN apt-get update -qq && apt-get install -y \
    build-essential \
    libpq-dev \
    postgresql-client \
    nodejs \
    npm
# Install Yarn
RUN npm install -g yarn
# Install Rails
RUN gem install rails
# Set working directory
WORKDIR /app

COPY Gemfile* /app/
RUN bundle install
RUN bundle exec rails assets:precompile
EXPOSE 3000
RUN chmod +x bin/rails
RUN bin/rails db:create
RUN bin/rails db:migrate

# Keep container running for interactive use
CMD [“/bin/bash”]

• Run the command to build the dockerfile

docker build -t 502_fem_docker .

• Copy the contents from database.yml to config/database.yml
• Run the following commands to run start the database and the container

Create network

docker network create rails-net

Start PostgreSQL

docker run --name postgres \
  --network rails-net \
  -e POSTGRES_PASSWORD=password \
  -e POSTGRES_USER=postgres \
  -d postgres:latest

Env file

In the .env file, add variables GOOGLE_CLIENT_ID, GOOGLE_CLIENT_SECRET, and SECRET_KEY_BASE. Do not add any other variables.

Remove /.env* from .dockerignore.

Start Rails

docker run -it \
  --name rails-app \
  --network rails-net \
  -p 3000:3000 \
  -v $(pwd):/app \
  502_fem_docker bash

• Inside the container run the following commands

rails server -b 0.0.0.0

Run existing

Make sure that postgres and rails-app are already started:

docker start rails-app  
docker start postgres 

Start

docker exec -it rails-app /bin/bash 

Pull database from Heroku

Pull from Heroku Postgres database to local:

heroku pg:pull DATABASE_URL mylocaldb --app example-app

The database url can be found in Heroku config variables under the test app.