Gecko [ fernandoquevedodop.com ]

Name	Size	Permission
README.md.gz	7.38 KB	-rw-r--r--
assets.md	3.09 KB	-rw-r--r--
changelog.Debian.gz	643 B	-rw-r--r--
cloud9.md.gz	4.06 KB	-rw-r--r--
copyright	1.44 KB	-rw-r--r--
css.md.gz	2.4 KB	-rw-r--r--
deployment.md.gz	2.2 KB	-rw-r--r--
docker.md	1.56 KB	-rw-r--r--
engines.md.gz	2.19 KB	-rw-r--r--
env.md	1.93 KB	-rw-r--r--
es6.md	2.8 KB	-rw-r--r--
folder-structure.md	1.26 KB	-rw-r--r--
misc.md	470 B	-rw-r--r--
props.md.gz	1.73 KB	-rw-r--r--
testing.md.gz	1.84 KB	-rw-r--r--
troubleshooting.md.gz	2.69 KB	-rw-r--r--
typescript.md	2.64 KB	-rw-r--r--
v4-upgrade.md.gz	2.82 KB	-rw-r--r--
webpack-dev-server.md	2.85 KB	-rw-r--r--
webpack.md.gz	3.75 KB	-rw-r--r--
yarn.md	789 B	-rw-r--r--

Code Editor : docker.md

# Docker

To setup webpacker with a dockerized Rails application is trivial.

First, add a new service for webpacker in docker-compose.yml:

```Dockerfile
version: '3'
services:
  webpacker:
    build: .
    env_file:
      - '.env.docker'
    command: ./bin/webpack-dev-server
    volumes:
      - .:/webpacker-example-app
    ports:
      - '3035:3035'
```

Second, change the webpack-dev-server host to the service name of the docker-compose in config/webpacker.yml:

```yaml
development:
  <<: *default
  dev_server:
    host: webpacker
```

add nodejs and yarn as dependencies in Dockerfile,

```dockerfile
FROM ruby:2.4.1

RUN apt-get update -qq && apt-get install -y build-essential nodejs \
 && rm -rf /var/lib/apt/lists/* \
 && curl -o- -L https://yarnpkg.com/install.sh | bash

# Rest of the commands....
```

Please note: if using `assets:precompile` in the Dockerfile or have issues with the snippet above then try:

```dockerfile
FROM ruby:2.4.1

RUN curl -sL https://deb.nodesource.com/setup_8.x | bash \
 && apt-get update && apt-get install -y nodejs && rm -rf /var/lib/apt/lists/* \
 && curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add - \
 && echo "deb https://dl.yarnpkg.com/debian/ stable main" | tee /etc/apt/sources.list.d/yarn.list \
 && apt-get update && apt-get install -y yarn && rm -rf /var/lib/apt/lists/*

# Rest of the commands....
```

and create an env file to load environment variables from:

```env
NODE_ENV=development
RAILS_ENV=development
WEBPACKER_DEV_SERVER_HOST=0.0.0.0
```

Lastly, rebuild your container:

```bash
docker-compose up --build
```

${this.title}

Code Editor : docker.md