Multiple websites running in docker containers, how to implement? - nginx

Question

I am running two docker containers, using the following docker-composer script:
db:
image: cofoundry/mysql
environment:
- MYSQL_USER=wordpress
- MYSQL_PASS=wordpress
- MYSQL_DB=wordpress
ports:
- "3306:3306"
privileged: true
web:
image: cofoundry/nginx-phpfpm
volumes:
- ../bedrock:/app
environment:
- DOCROOT=/app/web
links:
- db
ports:
- "80:80"
privileged: true
But I'm not sure how can I go about running multiple nginx-phpfpm web containers with different sites, like web_1, web_2 etc. ?
Or, alternatively, how to propagate custom nginx.conf while running docker-composer up, so I can configure virtualhosts there.
Thanks!

Answer 1

So the way to do it (as I mentioend in my comment) is to use something like autodock:
Example: (based on your docker-compose.yml):
db:
image: cofoundry/mysql
environment:
- MYSQL_USER=wordpress
- MYSQL_PASS=wordpress
- MYSQL_DB=wordpress
ports:
- "3306:3306"
privileged: true
web:
image: cofoundry/nginx-phpfpm
volumes:
- ../bedrock:/app
environment:
- DOCROOT=/app/web
- VIRTUALHOST=myapp.example.com
links:
- db
privileged: true
autodock:
image: prologic/autodock
ports:
- "1338:1338/udp"
- "1338:1338/tcp"
volumes:
- /var/run/docker.sock:/var/run/docker.sock
autodockhipache:
image: prologic/autodock-hipache
links:
- autodock
- hipache:redis
hipache:
image: hipache
ports:
- 80:80
- 443:443
The only requirement is that you setup a wildcard DNS entry for *.example.com to point to your "Docker Host". e.g:
*.example.com A 1.1.1.1
You can read more about how this all works in the article:
A Docker-based mini PaaS
This will scale and work for as many websites as you want to run on your "Docker Host".
Edit: The nice thing about this setup is that it's simple, it's automated and it only requires you add a single extra environment variable to the container you want to expose to the web with only one initial setup requirements (wildcard dns entry).