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patroni/kubernetes/openshift-example
Polina Bungina acecbe0d8f Fix a couple of linter problems, delete TODO.md (#2526)
Fix a couple of linter problems, remove trailing whitespaces

Co-authored-by: Alexander Kukushkin <cyberdemn@gmail.com>
2023-01-17 10:52:03 +01:00
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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