Add docker config for development env

.env.example

@@ -1,8 +1,19 @@
-# Run this command to import the variables
+# In case you are not using Docker, run this command to import the variables
 # export $(cat .env | grep -v ^# | xargs)
 
 ############### Required ENV ###############
 
+# Postgres info
+POSTGRES_USER=postgres
+POSTGRES_PASSWORD=postgres
+POSTGRES_DATABASE=squeeze_dev
+POSTGRES_HOST=db
+
+# To check your id, run "id -g" in your terminal
+HOST_GROUP_GID=1000
+# To check your id, run "id -u" in your terminal
+HOST_USER_UID=1000
+
 # Add your own strava information
 # Create an app for strava at https://developers.strava.com
 STRAVA_CLIENT_ID=

.gitignore

@@ -34,3 +34,6 @@ npm-debug.log
 
 # Add coveralls folder
 /cover
+
+# ElixirLS Dialyzer
+.elixir_ls/

README.md

@@ -40,11 +40,15 @@ Here are the steps to get started:
   * Copy `.env.example` file to `.env` with `cp .env.example .env`
   * Create an app for strava [here](https://developers.strava.com).
   * Set environment variables in your `.env` file.
-  * Import your environment variables with `export $(cat .env | grep -v ^# | xargs)`
-  * Install dependencies with `mix deps.get`
-  * Create and migrate your database with `mix ecto.create && mix ecto.migrate`
-  * Install Node.js dependencies with `cd assets && yarn install`
-  * Start Phoenix endpoint with `mix phx.server`
+  * **If you are using Docker:**
+    * Install Docker and docker-compose in your machine
+    * Run `docker-compose up -d`
+  * **If you are not using Docker:**
+    * Import your environment variables with `export $(cat .env | grep -v ^# | xargs)`
+    * Install dependencies with `mix deps.get`
+    * Create and migrate your database with `mix ecto.create && mix ecto.migrate`
+    * Install Node.js dependencies with `cd assets && yarn install`
+    * Start Phoenix endpoint with `mix phx.server`
 
 Now you can visit [`localhost:4000`](http://localhost:4000) from your browser.
 

config/dev.exs

@@ -58,11 +58,10 @@ config :phoenix, :stacktrace_depth, 20
 # Configure your database
 config :squeeze, Squeeze.Repo,
   adapter: Ecto.Adapters.Postgres,
-  username: "postgres",
-  password: "postgres",
-  database: "squeeze_dev",
-  hostname: "localhost",
+  username: System.get_env("POSTGRES_USER"),
+  password: System.get_env("POSTGRES_PASSWORD"),
+  database: System.get_env("POSTGRES_DATABASE"),
+  hostname: System.get_env("POSTGRES_HOST"),
   pool_size: 10
 
-config :squeeze, Squeeze.Mailer,
-  adapter: Bamboo.LocalAdapter
+config :squeeze, Squeeze.Mailer, adapter: Bamboo.LocalAdapter

docker-compose.yml

@@ -0,0 +1,33 @@
+version: '3'
+
+services:
+  # Phoenix app
+  app:
+    build:
+      context: .
+      dockerfile: ./docker/Dockerfile
+      args:
+        HOST_USER_UID: ${HOST_USER_UID}
+        HOST_GROUP_GID: ${HOST_GROUP_GID}
+    container_name: openpace-app
+    volumes:
+      - .:/app/
+    env_file:
+      - .env
+    ports:
+      - 4000:4000
+    depends_on:
+      - db
+
+  # Postgres
+  db:
+    image: postgres:latest
+    container_name: openpace-db
+    volumes:
+      - pgdata:/var/lib/postgresql/data
+    restart: always
+    env_file:
+      - .env
+
+volumes:
+  pgdata:

docker/Dockerfile

@@ -0,0 +1,34 @@
+FROM elixir:1.9
+
+RUN curl -sL https://deb.nodesource.com/setup_12.x | bash
+
+# Install depenencies
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends \
+            inotify-tools \
+            apt-transport-https \
+            apt-utils \
+            postgresql-client \
+            nodejs
+
+# Install yarn
+RUN npm install -g yarn
+
+# Create openpace user and group from host to avoid permission issues
+ARG HOST_GROUP_GID
+ARG HOST_USER_UID
+RUN addgroup --gid $HOST_GROUP_GID openpace && \
+    useradd -m -u $HOST_USER_UID -g $HOST_GROUP_GID openpace
+
+# Set permissions to the app folder
+ARG APP_DIR='/app'
+RUN mkdir -p $APP_DIR && \
+    chown -R openpace:openpace $APP_DIR
+
+USER openpace
+
+RUN mix local.hex --force && mix local.rebar --force
+
+WORKDIR $APP_DIR
+
+ENTRYPOINT ["sh", "/app/docker/entrypoint.sh"]

docker/entrypoint.sh

@@ -0,0 +1,28 @@
+#!/bin/bash
+# Docker entrypoint script.
+
+cd $(dirname $0)/..
+export APP_DIR=$(pwd)
+export ASSETS_DIR=${APP_DIR}/assets
+
+# Install new dependencies
+mix deps.get
+
+# Wait until Postgres is ready
+while ! pg_isready -q -h $POSTGRES_HOST -p 5432 -U $POSTGRES_USER
+do
+  echo "$(date) - waiting for database to start."
+  sleep 2
+done
+
+# Create and migrate database
+mix ecto.create
+mix ecto.migrate
+
+# Install yarn packages
+cd ${ASSETS_DIR}
+yarn install
+cd ${APP_DIR}
+
+echo "Starting Phoenix server..."
+exec mix phx.server