Uninstalling OSO

7 Uninstalling OSO

This chapter provides information about uninstalling Oracle Communications Cloud Native Core, Operations Services Overlay (OSO).

7.1 Uninstalling OSO Using Helm

To uninstall OSO, run the following commands:

[Optional]: Take backup of prometheus data using Creating Backup of Prometheus Time Series Database (TSDB) Using Snapshot Utility.

Run the following command to list all the OSO components installed using OSO namespace.

$ helm list -n <oso-namespace>

For example: $ helm list -n oso

Sample output:


NAME            NAMESPACE       REVISION        UPDATED                                 STATUS          CHART                   APP VERSION
oso-alm         oso             1               2026-01-22 07:21:12.915700279 +0000 UTC deployed        alertmanager-1.15.1     25.2.200
oso-alrt-config oso             1               2026-01-22 11:57:34.950494069 +0000 UTC deployed        oso-alr-config-0.1.0    25.2.200
oso-apm         oso             1               2026-01-22 07:21:14.085348726 +0000 UTC deployed        apm-service-25.2.200    25.2.200
oso-prom        oso             1               2026-01-22 07:21:11.719282076 +0000 UTC deployed        prometheus-27.5.0       25.2.200

Run the following command to list all the Kubernetes services:

$ kubectl get all -n <oso-namespace>

For example:$ kubectl get all -n oso

Sample output:


NAME                                READY   STATUS    RESTARTS   AGE
pod/apm-svc-6584494467-zfdwv        1/1     Running   0          4h45m
pod/oso-alm-0                       2/2     Running   0          4h42m
pod/oso-alm-1                       2/2     Running   0          4h42m
pod/oso-prom-svr-74cff66546-nrrd4   2/2     Running   0          4h45m

NAME                       TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)                    AGE
service/apm-svc            ClusterIP   10.233.31.59    <none>        80/TCP                     4h45m
service/oso-alm            NodePort    10.233.11.166   <none>        80:30939/TCP               4h45m
service/oso-alm-headless   ClusterIP   None            <none>        80/TCP,9094/TCP,9094/UDP   4h45m
service/oso-prom-svr       NodePort    10.233.56.164   <none>        80:31048/TCP               4h45m

NAME                           READY   UP-TO-DATE   AVAILABLE   AGE
deployment.apps/apm-svc        1/1     1            1           4h45m
deployment.apps/oso-prom-svr   1/1     1            1           4h45m

NAME                                      DESIRED   CURRENT   READY   AGE
replicaset.apps/apm-svc-6584494467        1         1         1       4h45m
replicaset.apps/oso-prom-svr-74cff66546   1         1         1       4h45m

NAME                       READY   AGE
statefulset.apps/oso-alm   2/2     4h45m

Run the following command to delete all PVCs in the OSO namespace.


# Delete all pvcs
$ kubectl delete pvc --all -n <oso-namespace>

Sample output


persistentvolumeclaim "storage-oso-alm-0" deleted
persistentvolumeclaim "storage-oso-alm-1" deleted

Run the following commands to uninstall the OSO components:
- Run the following command to uninstall oso-prometheus.
```
$ helm uninstall oso-prom -n <oso-namespace>
```
  For example:
```
$ helm uninstall oso-prom -n oso
```
  Sample output:
```
release "oso-prom" uninstalled
```
- Run the following command to uninstall oso-alert-manager.
```
$ helm uninstall oso-alm -n <oso-namespace>
```
  For example:
```
$ helm uninstall oso-alm -n oso
```
  Sample output:
```
release "oso-alm" uninstalled
```
- Run the following command to uninstall oso-apm service.
```
$ helm uninstall oso-apm -n <oso-namespace>
```
  For example:
```
$ helm uninstall oso-apm -n oso
```
  Sample output:
```
release "oso-apm" uninstalled
```
- Run the following command to uninstall oso-alert-config.
```
$ helm uninstall oso-alrt-config -n <oso-namespace>
```
  For example:
```
$ helm uninstall oso-alrt-config -n oso
```
  Sample output:
```
release "oso-alrt-config" uninstalled
```

Helm keeps a record of its releases, so you can still reactivate the release after uninstalling it. Run the following command to verify if all the OSO related resources are uninstalled.

$ kubectl get all -n <oso-namespace>

Sample output:


NAME                               COMPLETIONS   DURATION   AGE
oso-alr-config-hook-post-install   0/1           138m       138m

In case of successful uninstallation, no OSO resource is displayed in the command output.

If the command output displays the OSO resources or objects, then perform Deleting Kubernetes Resources.

7.2 Deleting Kubernetes Resources

This section describes how to delete Kubernetes resources or objects where OSO is deployed.

Caution:

Be sure before running the following command as it deletes all the Kubernetes objects in the specified namespace.

Run the following command to delete the Kubernetes specific resources:

kubectl delete <resource-type> <resource-name> -n <release-namespace>

For example:

$ kubectl delete job oso-alr-config-hook-post-install

Sample output:

job.batch "oso-alr-config-hook-post-install" deleted