Installing the WebLogic Kubernetes Operator

6.5 Installing the WebLogic Kubernetes Operator

Oracle Access Management (OAM) on Kubernetes leverages the WebLogic Kubernetes Operator.

Create a Kubernetes namespace for the WebLogic Kubernetes Operator by running the following command:
```
kubectl create namespace <sample-kubernetes-operator-ns>
```
For example:
```
kubectl create namespace opns
```
The output will look similar to the following:
```
namespace/opns created
```
Create a service account for the operator in the operator’s namespace by running the following command:
```
kubectl create serviceaccount -n <sample-kubernetes-operator-ns> <sample-kubernetes-operator-sa>
```
For example:
```
kubectl create serviceaccount -n opns op-sa
```
The output will look similar to the following:
```
serviceaccount/op-sa created
```
Navigate to the $WORKDIR:
```
 cd $WORKDIR
```

Run the following helm command to install and start the operator:

helm install weblogic-kubernetes-operator kubernetes/charts/weblogic-operator \
--namespace <sample-kubernetes-operator-ns> \
--set image=ghcr.io/oracle/weblogic-kubernetes-operator:4.2.10 \
--set serviceAccount=<sample-kubernetes-operator-sa> \
--set "enableClusterRoleBinding=true" \
--set "domainNamespaceSelectionStrategy=LabelSelector" \
--set "domainNamespaceLabelSelector=weblogic-operator\=enabled" \
--set "javaLoggingLevel=FINE" --wait

For example:

helm install weblogic-kubernetes-operator kubernetes/charts/weblogic-operator \
--namespace opns \
--set image=ghcr.io/oracle/weblogic-kubernetes-operator:4.2.10 \
--set serviceAccount=op-sa \
--set "enableClusterRoleBinding=true" \
--set "domainNamespaceSelectionStrategy=LabelSelector" \
--set "domainNamespaceLabelSelector=weblogic-operator\=enabled" \
--set "javaLoggingLevel=FINE" --wait

The output will look similar to the following:

NAME: weblogic-kubernetes-operator
LAST DEPLOYED: <DATE>
NAMESPACE: opns
STATUS: deployed
REVISION: 1
TEST SUITE: None

Verify that the operator’s pod and services are running by executing the following command:

kubectl get all -n <sample-kubernetes-operator-ns>

For example:

kubectl get all -n opns

The output will look similar to the following:

NAME                                             READY   STATUS    RESTARTS   AGE
pod/weblogic-operator-676d5cc6f4-wct7b           1/1     Running   0          40s
pod/weblogic-operator-webhook-7996b8b58b-9sfhd   1/1     Running   0          40s

NAME                                     TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)             AGE
service/weblogic-operator-webhook-svc    ClusterIP   10.100.91.237  <none>        8083/TCP,8084/TCP   47s

NAME                                        READY   UP-TO-DATE   AVAILABLE   AGE
deployment.apps/weblogic-operator           1/1     1            1           40s
deployment.apps/weblogic-operator-webhook   1/1     1            1           40s

NAME                                                   DESIRED   CURRENT   READY   AGE
replicaset.apps/weblogic-operator-676d5cc6f4           1         1         1       40s
replicaset.apps/weblogic-operator-webhook-7996b8b58b   1         1         1       46s

Verify the operator pod’s log:

kubectl logs -n <sample-kubernetes-operator-ns> -c weblogic-operator deployments/weblogic-operator

For example:

kubectl logs -n opns -c weblogic-operator deployments/weblogic-operator

The output will look similar to the following:

...
{"timestamp":"<DATE>","thread":21,"fiber":"","namespace":"","domainUID":"","level":"FINE","class":"oracle.kubernetes.operator.DeploymentLiveness","method":"run","timeInMillis":1678183291191,"message":"Liveness file last modified time set","exception":"","code":"","headers":{},"body":""}
{"timestamp":"<DATE>","thread":37,"fiber":"","namespace":"","domainUID":"","level":"FINE","class":"oracle.kubernetes.operator.DeploymentLiveness","method":"run","timeInMillis":1678183296193,"message":"Liveness file last modified time set","exception":"","code":"","headers":{},"body":""}
{"timestamp":"<DATE>","thread":31,"fiber":"","namespace":"","domainUID":"","level":"FINE","class":"oracle.kubernetes.operator.DeploymentLiveness","method":"run","timeInMillis":1678183301194,"message":"Liveness file last modified time set","exception":"","code":"","headers":{},"body":""}
{"timestamp":"<DATE>","thread":31,"fiber":"","namespace":"","domainUID":"","level":"FINE","class":"oracle.kubernetes.operator.DeploymentLiveness","method":"run","timeInMillis":1678183306195,"message":"Liveness file last modified time set","exception":"","code":"","headers":{},"body":""}