Docker Image Startup Behavior

.gitignore

@@ -0,0 +1,2 @@
+db_data
+box

Dockerfile

@@ -1,6 +1,5 @@
 FROM ruby:2.3.1
 
-
 # Install essential linux packages
 RUN apt-get update -qq && apt-get install -y --no-install-recommends \
     bash \
@@ -9,6 +8,8 @@ RUN apt-get update -qq && apt-get install -y --no-install-recommends \
     nodejs \
     npm \
     postgresql-client \
+    libxml2-dev \
+    libxslt-dev \
     && rm -rf /var/lib/apt/lists/*
 
     # Define where the application will live inside the image
@@ -24,13 +25,17 @@ RUN apt-get update -qq && apt-get install -y --no-install-recommends \
 # Install bundler
 RUN gem install bundler
 
-# Use the Gemfiles as Docker cache markers and run bundle install before copy over app src
-#COPY Gemfile Gemfile
-#COPY Gemfile.lock Gemfile.lock
+ENV app /app
+
+RUN mkdir $app
+WORKDIR $app
+
+ENV BUNDLE_PATH /box
 
+ADD . $app
 
-#RUN bundle install --deployment
+COPY script/start.sh /start.sh
 
-#RUN rails db:migrate
+ENTRYPOINT ["bash","/start.sh"]
 
-CMD bundle install --deployment && rails db:migrate && rails s
+CMD rails s -b 0.0.0.0

README.md

@@ -1,21 +1,36 @@
 # Rails Dev
 A simple rails image for rails development
 
-## Sample docker-compose.yml
-```
-version: '3'
-
-services:
+## Setup
+Modify the docker-compose.yml paths to point at your rails app.
+Be sure the .env.local file is also correctly targeted.
 
-   rails:
-    #  depends_on:
-    #    - db
-     image: renocollective/rails
-     volumes:
-       - ./:/var/www/app
-     ports:
-       - "3000:3000"
-     restart: always
-    #  environment:
+Sample .env.local file contents (needs at least these variables for this docker
+s, others may setup, others may be necessary for your rails app):
+```# dotenv .env file for environment variables
+#
+# each developer should make their own .env.local file using this .env file
+# as a guide
+#
+# .env.local files are not checked into the remote repo
+#
+# reference these attributes in code like this:
+# config.fog_directory  = ENV['S3_BUCKET']
 
+POSTGRES_HOST=db
+POSTGRES_DB=member_portal
+POSTGRES_USER=member_portal
+POSTGRES_PASSWORD=somereallygreatpasswordthatsbetterthanthisone
 ```
+
+## Usage
+* To run rails in docker. Be sure you're in the right directory with docker-compose.yml
+* ```docker-compose up``` or ```docker-compose up -d``` to not show console output.
+* DB Migrate: (can be run without rebooting container, just open a new terminal)
+* ```docker-compose run --rm rails rails db:migrate```
+* Tests:
+* ```docker-compose run --rm -e "RAILS_ENV=test" rails rake test```
+* Tests with DEBUG log level:
+* ```docker-compose run --rm -e "RAILS_ENV=test" -e"LOG_LEVEL=DEBUG" rails rake test```
+* Run rubocop:
+* ```docker-compose run --rm rails bundle exec rubocop```

docker-compose.yml

@@ -0,0 +1,45 @@
+version: '3'
+
+services:
+   db:
+     image: postgres:10.1
+     volumes:
+       - ./db_data:/var/lib/postgresql/data
+     ports:
+       - "3309:3306"
+     restart: always
+     env_file:
+       - ../member-portal/.env.local
+
+  #  adminer:
+  #   depends_on:
+  #     - db
+  #   links:
+  #     - db
+  #   image: adminer
+  #   restart: always
+  #   ports:
+  #       - 8088:8080
+
+   rails:
+     depends_on:
+       - db
+     links:
+       - db
+     build: ./
+     volumes:
+       - ../member-portal/:/app
+       - ./box:/box
+     ports:
+       - "3000:3000"
+     restart: always
+     env_file:
+       - ../member-portal/.env.local
+
+   box:
+    image: busybox
+    volumes:
+       - ./box:/box
+
+volumes:
+    box:

script/start.sh

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+#!/bin/sh
+set -e
+
+if [ -f /app/tmp/pids/server.pid ]; then
+  rm /app/tmp/pids/server.pid
+fi
+
+bundle check || bundle install
+
+exec bundle exec "$@"