Getting Started

If you have not done so, please install PGO by following the quickstart.

As part of the installation, please be sure that you have done the following:

1. Forked the Postgres Operator examples repository and cloned it to your host machine.
2. Installed PGO to the postgres-operator namespace. If you are inside your postgres-operator-examples directory, you can run the kubectl apply -k kustomize/install command.

Throughout this tutorial, we will be building on the example provided in the kustomize/postgres. If you are using OpenShift, you will want to use the example in the kustomize/openshift directory, but in this tutorial, treat references to kustomize/postgres as the equivalent of taking action on files in kustomize/openshift.

When referring to a nested object within a YAML manifest, we will be using the . format similar to kubectl explain. For example, if we want to refer to the deepest element in this yaml file:

spec:
  hippos:
    appetite: huge

we would say spec.hippos.appetite.

kubectl explain is your friend. You can use kubectl explain postgrescluster to introspect the postgrescluster.postgres-operator.crunchydata.com custom resource definition. You can also review the CRD reference.

With PGO, the Postgres Operator installed, let’s go and create a Postgres cluster!