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Manage a SigScale OCS Cluster with kubectl

Create a new OCS Cluster

$ kubectl apply -f ocs-cluster
service/diameter-acct created
service/diameter-auth created
statefulset.apps/ocs created
service/ocs-rest created
service/ocs-snmp created
service/otp created
secret/otp-dist created
service/radius-acct created
service/radius-auth created

List the Created Objects

$ kubectl get all -l app.kubernetes.io/name=ocs
NAME        READY   STATUS    RESTARTS   AGE
pod/ocs-0   1/1     Running   0          24m
pod/ocs-1   1/1     Running   0          23m
pod/ocs-2   1/1     Running   0          23m

NAME                    TYPE           CLUSTER-IP     EXTERNAL-IP   PORT(S)        AGE
service/diameter-acct   ClusterIP      10.44.6.205    <none>        3868/TCP       24m
service/diameter-auth   ClusterIP      10.44.14.193   <none>        3869/TCP       24m
service/ocs-rest        LoadBalancer   10.44.10.56    34.80.248.9   80:31707/TCP   24m
service/ocs-snmp        ClusterIP      10.44.10.53    <none>        4161/UDP       24m
service/radius-acct     ClusterIP      10.44.11.241   <none>        1813/UDP       24m
service/radius-auth     ClusterIP      10.44.9.253    <none>        1812/UDP       24m

Inspect a Pod Log

$ kubectl logs --tail=5 ocs-1
=PROGRESS REPORT==== 1-Sep-2021::08:22:52.783507 ===
    application: ocs
    started_at: '[email protected]'

Eshell V12.0.3  (abort with ^G)

Attach to a Pod Console

$ kubectl attach -it ocs-1
Defaulted container "ocs" out of: ocs, ocs-chown (init), ocs-init (init)
If you don't see a command prompt, try pressing enter.

([email protected])1>

To disconnect type ctrl-P ctrl-Q

Scale up the OCS Cluster

$ kubectl scale --replicas=5 statefulset ocs
statefulset.apps/ocs scaled

graybook:sigscale-ocs-k8s vances$ kubectl get pods -l app.kubernetes.io/name=ocs
NAME    READY   STATUS    RESTARTS   AGE
ocs-0   1/1     Running   0          36m
ocs-1   1/1     Running   0          36m
ocs-2   1/1     Running   0          35m
ocs-3   1/1     Running   0          37s
ocs-4   1/1     Running   0          19s

Delete the OCS Cluster

$ kubectl delete -f ocs-cluster
service "diameter-acct" deleted
service "diameter-auth" deleted
statefulset.apps "ocs" deleted
service "ocs-rest" deleted
service "ocs-snmp" deleted
service "otp" deleted
secret "otp-dist" deleted
service "radius-acct" deleted
service "radius-auth" deleted
$ kubectl delete pvc ocs-data-ocs-{0,1,2} ocs-log-ocs-{0,1,2}