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Shea Stewart 6519a192b1 add openshift customizations, templates, and test (#871 )

- It modifies the Dockerfile and entrypoint slightly to allow for OpenShift SCCs to operate correctly
- It adds 2 template examples that can be easily modified by changing parameters

Fixes #572

2018-11-21 18:01:39 +01:00

1.4 KiB

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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

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