6.5 WebLogic Kubernetes Operatorのインストール

Kubernetes上のOracle Identity Governance (OIG)では、WebLogic Kubernetes Operatorを利用します。

1. 次のコマンドを実行して、WebLogic Kubernetes OperatorのKubernetesネームスペースを作成します:

   kubectl create namespace <sample-kubernetes-operator-ns>

   例:

   kubectl create namespace opns

   出力は次のようになります:

   namespace/opns created

2. 次のコマンドを実行して、オペレータのネームスペースにオペレータのサービス・アカウントを作成します:

   kubectl create serviceaccount -n <sample-kubernetes-operator-ns> <sample-kubernetes-operator-sa>

   例:

   kubectl create serviceaccount -n opns op-sa

   出力は次のようになります:

   serviceaccount/op-sa created

3. $WORKDIRに移動します:

    cd $WORKDIR

4. 次のhelmコマンドを実行して、オペレータをインストールおよび起動します:

   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

   例:

   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

   出力は次のようになります:

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

5. 次のコマンドを実行して、オペレータのポッドとサービスが実行されていることを確認します:

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

   例:

   kubectl get all -n opns

   出力は次のようになります:

   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

6. オペレータ・ポッドのログを確認します:

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

   例:

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

   出力は次のようになります:

   ...
   {"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":""}