CODE Docker image
The CODE Docker image can be installed to any x86-64 or arm64 host, and it is fully configurable.
How to grab the CODE image from Docker image
Collabora Online Development Edition (CODE) is available as a Docker image from Docker Hub. Currently, the supported platforms are
arm64, and the image was mostly tested on Linux. If you are not familiar with Docker concepts and basic commands, read the Docker Get Started document first.
docker pull collabora/code
docker run -t -d -p 127.0.0.1:9980:9980 collabora/code
This is the minimal command line to start a new container. There are a few optional and recommended command line options:
--name collaboragives a specific name to the container instead of a random one.
--restart alwaysrestarts the container after a crash that may occur.
--privilegedstarts the container with rights required for faster jail creation via bind mount.
-eyou can pass environment variables to the container, see below.
How to configure Docker image
There are multiple ways to put application configuration into Docker containers. Collabora Online has many configuration options and the Docker image comes with a built-in
/etc/coolwsd/coolwsd.xml configuration file with the defaults.
1. Setting the application configuration dynamically via environment variables
-e command line option of
docker run command you can define environment variables, that are passed to the container.
By default Collabora Online enables the first WOPI host that tries to connect. You can define the allowed WOPI hosts by passing environment variables.
aliasgroup2… and so on should be added as per the requirement.
<domain1> is the WOPI host, i.e. your preferred File Sync and Share solution that implements the WOPI protocol, for example
<your-dot-escaped-aliasname1>|<your-dot-escaped-aliasname2> are the aliasnames with which you can access the same WOPI host (in this case
<domain1>) aliasnames can use regular expressions.If you don’t have any aliases, then only domain needs to be defined, for example
Other optional environment variables that you can pass to the container at startup are the following:
User name for the admin console
Password for the admin console
When this environment variable is set (is not “”), then startup script will not generate a new SSL certificate signed by a dummy CA. It is useful, if you want to use your own SSL certificate for some reason.
When this environment variable is set (is not “”), then startup script
will generate a new SSL certificate signed by a dummy CA for this
domain, not for
When this environment variable is set (is not “”), then its value will be used as server name in
By default only limited set of spelling dictionaries and thesauri
are configured for CODE, mainly for performance reasons. The default set of languages is the following:
You can pass extra command line parameters to
2. Use the configuration file directly
After starting the container, you can copy the configuration file out of the container, edit it, and copy it back to
the container. It is also possible to mount the configuration file, and modify it outside of the container.
The container will notice that the configuration file has changed, and the service will be restarted (don’t forget the
--restart always option when you start the container with
After starting of the container, try:
curl -k https://localhost:9980
You should get the OK string, if everything is in order. Otherwise, you can check the log with:
docker logs collabora
If you need customizations, for example additional fonts, you can build the docker image yourself. Please find everything in Collabora Online source code repository on GitHub.