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- Update postgres docker image to the latest 11 version. - Remove empty lines inside the `RUN` command to make the Dockerfile compatible with future docker versions. - Set the `PATRONI_KUBERNETES_POD_IP` environment variable, which is required when _use_endpoints_ is enabled. Otherwise, the `KeyError` is raised [here](https://github.com/zalando/patroni/blob/master/patroni/dcs/kubernetes.py#L95). - Set `EDITOR` environment variable to make configuration changes via `patronictl edit-config`.
Patroni OpenShift Configuration
Patroni can be run in OpenShift. Based on the kubernetes configuration, the Dockerfile and Entrypoint has been modified to support the dynamic UID/GID configuration that is applied in OpenShift. This can be run under the standard restricted SCC.
Examples
Create test project
oc new-project patroni-test
Build the image
Note: Update the references when merged upstream.
Note: If deploying as a template for multiple users, the following commands should be performed in a shared namespace like openshift.
oc import-image postgres:10 --confirm -n openshift
oc new-build https://github.com/zalando/patroni --context-dir=kubernetes -n openshift
Deploy the Image
Two configuration templates exist in templates directory:
- Patroni Ephemeral
- Patroni Persistent
The only difference is whether or not the statefulset requests persistent storage.
Create the Template
Install the template into the openshift namespace if this should be shared across projects:
oc create -f templates/template_patroni_ephemeral.yml -n openshift
Then, from your own project:
oc new-app patroni-pgsql-ephemeral
Once the pods are running, two configmaps should be available:
$ oc get configmap
NAME DATA AGE
patroniocp-config 0 1m
patroniocp-leader 0 1m