How to add prerequisites for Graphviz App when Confluence Data Center run in containerised environment

Summary

Graphviz app requires some additional OS packages to render graphs in Confluence pages. Installing such packages may not be straightforward when Confluence is running in Kubernetes or Docker.

Diagnosis

• Install Graphviz app on Conflunece DC running in Kubernetes or Docker.

• Create a new page and add the Graphviz macro in it.

The macro is not rendered.

Cause

The container running Confluence does not have Graphviz OS packages installed.

Solution

1. Edit your current values.yaml and add the below entries in the confluence section:

   1 2 3 4 5 6 confluence: [...] postStart: command: | apt update apt install -y graphviz* >/tmp/graphviz_install.log 2>&1

2. Update the current deployment running (replacing accordingly $CONFLUENCE_RELEASE_NAME$ and $CONFLUENCE_NAMESPACE$).

   1 helm upgrade $CONFLUENCE_RELEASE_NAME$ atlassian-data-center/confluence --namespace $CONFLUENCE_NAMESPACE$ --values connie-values.yaml

3. Create a Dockerfile with the below content:

   1 2 FROM atlassian/confluence:8.5.11 RUN apt update && apt install -y graphviz*

4. Build a new Confluence images with image tag 8.5.11g

   1 docker build -t atlassian/confluence:8.5.11g .

5. Push the images to the registry accessible by your Kubernetes cluster where Confluence run.