Uninstalling Greenplum for Kubernetes

This topic describes how to uninstall Pivotal Greenplum for Kubernetes. This process involves deleting deployed Greenplum for Kubernetes clusters, removing container images into your container registry, and using the helm package manager to delete the Greenplum Operator resource from Kubernetes.

Prerequisites

Before you uninstall Greenplum for Kubernetes, follow the instructions in Deleting a Greenplum Cluster to delete any deployed Greenplum clusters. After you finish the uninstallation process, you will not be able to use the Greenplum Operator to manage existing Greenplum cluster deployments.

Procedures

Follow these steps to uninstall Greenplum for Kubernetes:

Use the helm delete command to delete the greenplum-operator release:
```
$ helm delete greenplum-operator
```

Use kubectl to remove additional resources:

Run the following command to list all the resources that are created by greenplum-operator

$ kubectl api-resources --verbs=get  -o name | grep -v componentstatus | xargs -n 1 kubectl get  --show-kind --ignore-not-found -l app=greenplum-operator -o name

endpoints/greenplum-validating-webhook
service/greenplum-validating-webhook
validatingwebhookconfiguration.admissionregistration.k8s.io/greenplum-validating-webhook
customresourcedefinition.apiextensions.k8s.io/greenplumclusters.greenplum.pivotal.io

Run the following to manually delete resources created by greenplum-operator

$ kubectl delete \
    endpoints/greenplum-validating-webhook \
    service/greenplum-validating-webhook \
    validatingwebhookconfiguration.admissionregistration.k8s.io/greenplum-validating-webhook

Note: If there are any existing Greenplum instances, deleting the CRD will also delete the clusters.

To delete the local Greenplum for Kubernetes Docker images, first determine the image IDs. For example:

$ docker images "greenplum-*"

REPOSITORY                 TAG                     IMAGE ID            CREATED             SIZE
greenplum-operator         v0.4.1.dev.9.g60effb8   d6ed470f5096        3 days ago          216MB
greenplum-for-kubernetes   v0.4.1.dev.9.g60effb8   6e2eae3efc7b        3 days ago          785MB

After determining the image IDs to remove, use docker rmi to delete them:

$ docker rmi d6ed470f5096

Untagged: greenplum-operator:v0.4.1.dev.9.g60effb8
Deleted: sha256:d6ed470f509641671f18c8b14a7fe2a90d21f42899091418f9f74bb2e580407a
Deleted: sha256:20cc7faf223e061b83e8b0e46df5b30ef59e921aa30fb8c731b48bf061db5090
Deleted: sha256:7f359f53c875b7f940cc218cd8db7ffba6c33a0e21b00e59b521d06f4be0f752
Deleted: sha256:31d8cdb416145ad1dd5ae9ba852f8979b5f39e75ff0d79ff2418d6ac7984a34c

$ docker rmi 6e2eae3efc7b

Untagged: greenplum-for-kubernetes:v0.4.1.dev.9.g60effb8
Deleted: sha256:6e2eae3efc7b225a417afbc04f9d6d00e96d2f412cd4b0f044965f2f0b607894
Deleted: sha256:c888ec4c22e495a3534ec3c12dec1b3852171bd378be4bb14b08326f45705996
Deleted: sha256:69aff71216917d3bcc33d132f3c5633d7f94bd62c1cac7aa37412203c0632e41
Deleted: sha256:ea26fb50e841c71c7471d7071cfe3b8ef631c4589be413c168dda88367d0af10
Deleted: sha256:f21f3641b5ceba2319de8d79251cee777af23974bf037b571e3090af1bad8db3
Deleted: sha256:eaaac4da7046f6f0d8dad2e469ec3982137467f20b8b84c5fc202a104b74b31e
Deleted: sha256:d02bb8400906504396c46d0cb2111a532d3e20001d4940fa3adf68f51c41d7d1
Deleted: sha256:9fb0e3075a99c4b58ee2d599425ae920ef389178811400645d79a38364da848e
Deleted: sha256:083cb21977d768ff10f2eb54a3674e7507b5640530a0e7553c7a6546c38063fa
Deleted: sha256:bff984ca1b417796e8087e3619ccf78b28c857e88ddffb58ce02a85219643002
Deleted: sha256:c76d65c498aca29a51bab36e10424c0e87e9a9526931b26a4df3b978a8ebf5bd
Deleted: sha256:7570f0f44c3f21c89e0101db713a104f6d0b44441db79f0ef9c0ea347dd8610f
Deleted: sha256:7a65049e912f4fb31073d221ed0f76656891aa16d070961b2fe2c68ce6341231
Deleted: sha256:f430714203443a72c308d86ef4b5fb6bb1ae83abef9037fd48fd57bb43277d68
Deleted: sha256:cce92fda689ab9033f0b8db214bc63edd1ae3e05831a0f3a9418976d7dc7ccdd
Deleted: sha256:d22094bbd65447c59a42c580eaa3a44cee9cd855f00905f59409be21bcefc745
Deleted: sha256:b8976847450013f3eb5e9a81a5778f73ed7bef67e6393049712ef17102b4b7b7
Deleted: sha256:b8c891f0ffec910a12757d733b178e3f62d81dbbde2b31d3b754071c416108ed

If you pushed the Greenplum for Kubernetes Docker images to a remote container registry, use the registry-specific instructions to delete those images. For example, if you pushed the images to Google Cloud Registry, follow the instructions in Deleting Images in the Google Cloud documentation to remove them.