ploneEstimated reading time: 7 minutes
Plone is a free and open source content management system built on top of Zope.
GitHub repo: https://github.com/plone/plone.docker
Supported tags and respective
Where to file issues:
What is Plone?
Plone is a free and open source content management system built on top of the Zope application server.
- Images for Plone 5.x and Plone 4.x
- Enable add-ons via environment variables
- Choose between Debian or Alpine based images.
Start a single Plone instance
This will download and start the latest Plone 5 container, based on Debian.
$ docker run -p 8080:8080 plone
This image includes
EXPOSE 8080 (the Plone port), so standard container linking will make it automatically available to the linked containers. Now you can add a Plone Site at http://localhost:8080 - default Zope user and password are
Start Plone within a ZEO cluster
ZEO cluster are best suited for production setups, you will need a loadbalancer.
Start ZEO server in the background
$ docker run --name=zeo plone zeo
Start 2 Plone clients (also in the background)
$ docker run --link=zeo -e ZEO_ADDRESS=zeo:8080 -p 8081:8080 plone $ docker run --link=zeo -e ZEO_ADDRESS=zeo:8080 -p 8082:8080 plone
Start Plone in debug mode
You can also start Plone in debug mode (
fg) by running
$ docker run -p 8080:8080 plone fg
You can enable Plone add-ons via the
ADDONS environment variable
$ docker run -p 8080:8080 -e PLONE_ADDONS="eea.facetednavigation Products.PloneFormGen" plone
For more information on how to extend this image with your own custom settings, adding more add-ons, building it or mounting volumes, please refer to our documentation
Supported Environment Variables
The Plone image uses several environment variable that allow to specify a more specific setup.
For Basic Usage
ADDONS- Customize Plone via Plone add-ons using this environment variable
ZEO_ADDRESS- This environment variable allows you to run Plone image as a ZEO client.
Run Plone with ZEO and install two addons (PloneFormGen and collective.roster)
$ docker run --name=instance1 --link=zeo -e ZEO_ADDRESS=zeo:8080 -p 8080:8080 \ -e ADDONS="Products.PloneFormGen collective.roster" plone
To use specific add-ons versions:
-e ADDONS="Products.PloneFormGen==1.8.5 collective.roster==2.3.1"
For Advanced Usage
ZCML- Include custom Plone add-ons ZCML files (former
DEVELOP- Develop new or existing Plone add-ons (former
ZEO_READ_ONLY- Run Plone as a read-only ZEO client. Defaults to
ZEO_CLIENT_READ_ONLY_FALLBACK- A flag indicating whether a read-only remote storage should be acceptable as a fallback when no writable storages are available. Defaults to
ZEO_SHARED_BLOB_DIR- Set this to on if the ZEO server and the instance have access to the same directory. Defaults to
ZEO_STORAGE- Set the storage number of the ZEO storage. Defaults to
ZEO_CLIENT_CACHE_SIZE- Set the size of the ZEO client cache. Defaults to
ZEO_PACK_KEEP_OLD- Can be set to false to disable the creation of
*.fs.oldfiles before the pack is run. Defaults to true.
HEALTH_CHECK_TIMEOUT- Time in seconds to wait until health check starts. Defaults to
HEALTH_CHECK_INTERVAL- Interval in seconds to check that the Zope application is still healthy. Defaults to
Full documentation for end users can be found online at docs.plone.org
This docker image was originally financed by the European Environment Agency, an agency of the European Union.
plone images come in many flavors, each designed for a specific use case.
This is the defacto image. If you are unsure about what your needs are, you probably want to use this one. It is designed to be used both as a throw away container (mount your source code and start the container to start your app), as well as the base to build other images off of.
This image is based on the popular Alpine Linux project, available in the
alpine official image. Alpine Linux is much smaller than most distribution base images (~5MB), and thus leads to much slimmer images in general.
This variant is highly recommended when final image size being as small as possible is desired. The main caveat to note is that it does use musl libc instead of glibc and friends, so certain software might run into issues depending on the depth of their libc requirements. However, most software doesn’t have an issue with this, so this variant is usually a very safe choice. See this Hacker News comment thread for more discussion of the issues that might arise and some pro/con comparisons of using Alpine-based images.
To minimize image size, it’s uncommon for additional related tools (such as
bash) to be included in Alpine-based images. Using this image as a base, add the things you need in your own Dockerfile (see the
alpine image description for examples of how to install packages if you are unfamiliar).
View license information for the software contained in this image.
As with all Docker images, these likely also contain other software which may be under other licenses (such as Bash, etc from the base distribution, along with any direct or indirect dependencies of the primary software being contained).
Some additional license information which was able to be auto-detected might be found in the
As for any pre-built image usage, it is the image user’s responsibility to ensure that any use of this image complies with any relevant licenses for all software contained within.library, sample, plone