Docker Official Image

https://github.com/docker-library/official-images/blob/master/library/backdrop

Supported tags and respective Dockerfile links

• 1.29.2-apache, 1.29.2, 1-apache, 1 (1/apache/Dockerfile)
• 1.29.2-fpm, 1-fpm (1/fpm/Dockerfile)

What is Backdrop?

Backdrop is a web application development framework frequenty deployed in the guise of a Content Management System (or "website") for use by:

• Primary, Secondary and Tertiary Educational Institutions
• National, Regional and Municipal Governments
• Small & Medium Sized Enterprises
• Non-Governmental Organizations
• Non-Profit Organizations

How to use this image

The basic pattern for starting a backdrop instance is:

docker run --name some-backdrop --link some-mysql:mysql -d backdrop/backdrop

The following environment variables are also honored for configuring your Backdrop CMS instance:

• -e BACKDROP_DB_HOST=... (defaults to the IP and port of the linked mysql container)
• -e BACKDROP_DB_USER=... (defaults to "root")
• -e BACKDROP_DB_PASSWORD=... (defaults to the value of the MYSQL_ROOT_PASSWORD environment variable from the linked mysql container)
• -e BACKDROP_DB_NAME=... (defaults to "backdrop")
• -e BACKDROP_DB_PORT=... (defaults to 3306)
• -e BACKDROP_DB_DRIVER=... (defaults to "mysql")

The BACKDROP_DB_NAME must already exist on the given MySQL server. Check out the official mysql image for more info on spinning up a DB.

If you'd like to be able to access the instance from the host without the container's IP, standard port mappings can be used:

docker run --name some-backdrop --link some-mysql:mysql -p 8080:80 -d backdrop/backdrop

Then, access it via http://localhost:8080 or http://host-ip:8080 in a browser.

If you'd like to use an external database instead of a linked mysql container, specify the hostname and port with BACKDROP_DB_HOST/BACKDROP_DB_PORT along with the password in BACKDROP_DB_PASSWORD and the username in BACKDROP_DB_USER (if it is something other than root):

docker run --name some-backdrop \
  -e BACKDROP_DB_HOST=10.1.2.3 \
  -e BACKDROP_DB_PORT=10432 \
  -e BACKDROP_DB_USER=... \
  -e BACKDROP_DB_PASSWORD=... \
  -d backdrop/backdrop

... via docker-compose

Example docker-compose.yml for backdrop:

services:
  backdrop:
    image: backdrop
    ports:
    - 8080:80
    environment:
      BACKDROP_DB_HOST: db
      BACKDROP_DB_USER: backdrop
      BACKDROP_DB_PASSWORD: backdrop

  db:
    image: mysql
    environment:
      MYSQL_USER: backdrop
      MYSQL_PASSWORD: backdrop
      MYSQL_ALLOW_EMPTY_PASSWORD: 'yes'
      MYSQL_DATABASE: backdrop

Run docker-compose up, wait for it to initialize completely, and visit http://localhost:8080 or http://host-ip:8080.

Adding additional libraries / extensions

This image does not provide any additional PHP extensions or other libraries, even if they are required by popular plugins. There are an infinite number of possible plugins, and they potentially require any extension PHP supports. Including every PHP extension that exists would dramatically increase the image size.

If you need additional PHP extensions, you'll need to create your own image FROM this one. The documentation of the php image explains how to compile additional extensions. Additionally, the drupal:7 Dockerfile has an example of doing this.

The following Docker Hub features can help with the task of keeping your dependent images up-to-date:

• Automated Builds let Docker Hub automatically build your Dockerfile each time you push changes to it.
• Repository Links can ensure that your image is also rebuilt any time drupal is updated.

License

View license information for the software contained in this image.

User Feedback

Documentation

• Backdrop CMS Documentation

Issues

• Backdrop CMS Core Issue Queue
• Backdrop CMS Contrib at Github.com - Each contrib project has it's own issue queue.

Contributing

• Contribute to the Backdrop CMS Open Source Project