Initial Docker support

.dockerignore

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+.git/
+Dockerfile
+docker-compose.yml
+

Dockerfile

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+FROM ruby:latest
+
+RUN apt-get update && \
+    DEBIAN_FRONTEND=noninteractive apt-get install -y nodejs file imagemagick git && \
+    apt-get clean && \ 
+    rm -rf /var/lib/apt/lists/*
+
+RUN adduser --disabled-password --gecos "FRAB" --uid 1000 frab
+
+COPY . /home/frab/app
+RUN chown -R frab:frab /home/frab/app
+
+USER frab
+
+WORKDIR /home/frab/app
+
+RUN bundle install
+
+COPY docker-cmd.sh /home/frab/app/docker-cmd.sh
+
+RUN cp config/database.yml.template config/database.yml
+
+VOLUME /home/frab/app/public
+
+EXPOSE 3000
+
+ENV RACK_ENV=production \
+    SECRET_KEY_BASE=asdkjf3245jsjfakjq435jadsgjlkq4j5jwj45jasdjvlj \
+    FRAB_HOST=localhost \
+    FRAB_PROTOCOL=http \
+    RAILS_SERVE_STATIC_FILES=true \
+    CAP_USER=frab \
+    FROM_EMAIL=frab@localhost \
+    SMTP_ADDRESS=172.17.0.1 \
+    SMTP_PORT=25 \
+    SMTP_NOTLS=true \
+    DATABASE_URL=sqlite3://localhost/home/frab/data/database.db
+
+CMD ["/home/frab/app/docker-cmd.sh"]

README.docker.md

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+# Docker Setup
+
+Frab can also be run inside a Docker container. Basic familiarity with docker is assumed in this guide.
+
+In addition to a `Dockerfile` a basic `docker-compose.yml` file is also provided.
+
+## Building the Docker Image
+
+
+```
+docker-compose build
+```
+
+or
+
+```
+docker build -t frab/frab .
+```
+
+
+## Configuration
+
+The `Dockerfile` sets some basic default environment variables for frab to use including a sqlite3 database. However you should tune them to your own needs. This can be done by editing the `docker-compose.yml` file or passing the environment variables to the `docker run` command with the `-e` flag.
+
+At a minimum you should change the default `SECRET_KEY_BASE` variable.
+
+### Database Configuration
+
+The default setup uses a sqlite3 database located in `/home/frab/data`. If you want it to persist across container restarts you should add a docker volume to that directory. Alternatively you can pass a `DATABASE_URL` environment variable to use another database like postgresql or mysql.
+
+The example docker-compose file used another postgres container as a database.
+
+# Running
+
+To run frab with docker-compose after building just run:
+
+```
+docker-compose up
+```
+
+The initial admin username and password will be printed to stdout on first run.
+
+
+To start the containers as a service run:
+
+```
+docker-compose up -d
+```

docker-cmd.sh

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+#!/bin/bash
+set -e
+
+echo "> Prepping '${RACK_ENV}' mode"
+if [ $RACK_ENV == "production" ]
+then
+    echo "> assets:precompile"
+    rake assets:precompile
+
+    if [ ! "$(rails db:version)" == "Current version: 0" ]
+    then
+        echo "> DB Migrate"
+        rails db:migrate
+    else
+        echo "> Setting up new db"
+        rails db:setup 
+    fi
+elif [ $RACK_ENV == "development" ]
+then
+    echo "> bin/setup"
+    ./bin/setup
+fi
+
+echo "> Starting server"
+rails server -b 0.0.0.0

docker-compose.yml

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+version: '2'
+
+services:
+    frab:
+        image: frab/frab
+        build: .
+        container_name: frab_app
+        volumes:
+            - data:/home/frab/app/public
+        ports:
+            - 3000:3000
+        networks:
+            - backend
+        environment:
+            - TZ=America/Los_Angeles
+            - SECRET_KEY_BASE=5fe64927bda359b186be52191c1ce3e5ef34827a
+            - DATABASE_URL=postgresql://frab:HWsJ54XvCOXyeSZhAQi9@db/frab
+            - FRAB_CURRENCY_UNIT='$$'
+            - FROM_EMAIL=frab@localhost
+        restart: always
+        depends_on:
+            - db
+
+    db:
+        image: postgres:9.5
+        container_name: frab_db
+        restart: always
+        volumes:
+            - db_data:/var/lib/postgresql/data
+        networks:
+            - backend
+        environment:
+            - TZ=America/Los_Angeles
+            - POSTGRES_USER=frab
+            - POSTGRES_PASSWORD=HWsJ54XvCOXyeSZhAQi9
+            - POSTGRES_DB=frab
+
+networks:
+    backend:
+
+volumes:
+    data: {}
+    db_data: {}
+