philippart-s/voxxed-days-java-operator

Source code for the Java operator talk at Voxxed Days Lux 2022

voxxed-days-java-operator

Source code for the Java operator talk at Voxxed Days Lux 2022

🎉 Init project

• la branche 01-init-project contient le résultat de cette étape
• installer / mettre à jour la dernière version du Operator SDK (v1.20.1 au moment de l'écriture du readme)
• créer le répertoire voxxed-days-java-operator
• dans le répertoire voxxed-days-java-operator, scaffolding du projet avec Quarkus : operator-sdk init --plugins quarkus --domain fr.wilda --project-name voxxed-days-java-operator
• l'arborescence générée est la suivante:

.
├── LICENSE
├── Makefile
├── PROJECT
├── README.md
├── pom.xml
├── src
│   └── main
│       ├── java
│       └── resources
│           └── application.properties

• ⚠️ Au moment de l'écriture de ce tuto il est nécessaire de changer manuellement les versions de Quarkus et du SDK dans le pom.xml:
  • passer la propriété quarkus.version à 2.7.6.Final
  • passer la propriété quarkus-sdk.version à 3.0.8
• supprimer le -operator dans le nom du fichier application.properties:

    quarkus.container-image.build=true
    #quarkus.container-image.group=
    quarkus.container-image.name=voxxed-days-java-operator
    # set to true to automatically apply CRDs to the cluster when they get regenerated
    quarkus.operator-sdk.crd.apply=false
    # set to true to automatically generate CSV from your code
    quarkus.operator-sdk.generate-csv=false

• vérification que cela compile : mvn clean compile
• tester le lancement: mvn quarkus:dev:

__  ____  __  _____   ___  __ ____  ______ 
 --/ __ \/ / / / _ | / _ \/ //_/ / / / __/ 
 -/ /_/ / /_/ / __ |/ , _/ ,< / /_/ /\ \   
--\___\_\____/_/ |_/_/|_/_/|_|\____/___/   
             Powered by Quarkus 2.7.5.Final
2022-06-07 17:44:58,528 WARN  [io.fab.kub.cli.Config] (Quarkus Main Thread) Found multiple Kubernetes config files [[/Users/stef/Config/k8s/ovh-example-2.yml, /Users/stef/.kube/config]], using the first one: [/Users/stef/Config/k8s/ovh-example-2.yml]. If not desired file, please change it by doing `export KUBECONFIG=/path/to/kubeconfig` on Unix systems or `$Env:KUBECONFIG=/path/to/kubeconfig` on Windows.

2022-06-07 17:44:58,586 WARN  [io.fab.kub.cli.Config] (Quarkus Main Thread) Found multiple Kubernetes config files [[/Users/stef/Config/k8s/ovh-example-2.yml, /Users/stef/.kube/config]], using the first one: [/Users/stef/Config/k8s/ovh-example-2.yml]. If not desired file, please change it by doing `export KUBECONFIG=/path/to/kubeconfig` on Unix systems or `$Env:KUBECONFIG=/path/to/kubeconfig` on Windows.
2022-06-07 17:44:58,776 INFO  [io.qua.ope.run.AppEventListener] (Quarkus Main Thread) Quarkus Java Operator SDK extension 3.0.7 (commit: 22fed83 on branch: 22fed8391b7b153616bd79c5f829cdd8a7edd5bd) built on Thu Apr 07 16:13:21 CEST 2022
2022-06-07 17:44:58,776 WARN  [io.qua.ope.run.AppEventListener] (Quarkus Main Thread) No Reconciler implementation was found so the Operator was not started.
2022-06-07 17:44:58,816 INFO  [io.quarkus] (Quarkus Main Thread) voxxed-days-java-operator 0.0.1-SNAPSHOT on JVM (powered by Quarkus 2.7.5.Final) started in 1.827s. Listening on: http://localhost:8080
2022-06-07 17:44:58,817 INFO  [io.quarkus] (Quarkus Main Thread) Profile dev activated. Live Coding activated.
2022-06-07 17:44:58,817 INFO  [io.quarkus] (Quarkus Main Thread) Installed features: [cdi, kubernetes, kubernetes-client, micrometer, openshift-client, operator-sdk, smallrye-context-propagation, smallrye-health, vertx]

📄 CRD generation

• la branche 02-crd-generation contient le résultat de cette étape
• création de l'API : operator-sdk create api --version v1 --kind NginxOperator
• cette commande a créé les 4 classes nécessaires pour créer l'opérateur:

src
└── main
    ├── java
    │   └── wilda
    │       └── fr
    │           ├── NginxOperator.java
    │           ├── NginxOperatorReconciler.java
    │           ├── NginxOperatorSpec.java
    │           └── NginxOperatorStatus.java

• tester que tout compile que la CRD se génère bien: mvn clean package (ou restez en mode mvn quarkus:dev pour voir la magie opérer en direct 😉)
• une exception apparaît, cela vient du fait que la CRD n'est pas générée côté Kubernetes, cela va être corrigée dans les étapes suivantes:

2022-03-28 15:42:02,261 ERROR [io.qua.run.Application] (Quarkus Main Thread) Failed to start application (with profile dev): io.javaoperatorsdk.operator.MissingCRDException: 'nginxoperators.fr.wilda' v1 CRD was not found on the cluster, controller 'nginxoperatorreconciler' cannot be registered

• la CRD doit être générée dans le target, target/kubernetes/nginxoperators.fr.wilda-v1.yml:

  # Generated by Fabric8 CRDGenerator, manual edits might get overwritten!
  apiVersion: apiextensions.k8s.io/v1
  kind: CustomResourceDefinition
  metadata:
    name: nginxoperators.fr.wilda
  spec:
    group: fr.wilda
    names:
      kind: NginxOperator
      plural: nginxoperators
      singular: nginxoperator
    scope: Namespaced
    versions:
    - name: v1
      schema:
        openAPIV3Schema:
          properties:
            spec:
              type: object
            status:
              type: object
          type: object
      served: true
      storage: true
      subresources:
        status: {}

📝 CRD auto apply

• la branche 03-auto-apply-crd contient le résultat de cette étape
• changer le paramétrage permettant la création / automatique de la CRD dans le application.properties (cela va permettre de ne plus avoir l'exception):

# set to true to automatically apply CRDs to the cluster when they get regenerated
quarkus.operator-sdk.crd.apply=true

• arrêter et relancer l'opérateur en mode dev : mvn quarkus:dev:

2022-06-07 17:51:36,072 INFO  [io.qua.ope.run.OperatorProducer] (Quarkus Main Thread) Applied v1 CRD named 'nginxoperators.fr.wilda' from /Users/stef/Talks/operators-for-all-dev/voxxed-days-2022/voxxed-days-java-operator/target/kubernetes/nginxoperators.fr.wilda-v1.yml
2022-06-07 17:51:36,073 INFO  [io.jav.ope.Operator] (Quarkus Main Thread) Registered reconciler: 'nginxoperatorreconciler' for resource: 'class wilda.fr.NginxOperator' for namespace(s): [all namespaces]
2022-06-07 17:51:36,073 INFO  [io.qua.ope.run.AppEventListener] (Quarkus Main Thread) Quarkus Java Operator SDK extension 3.0.7 (commit: 22fed83 on branch: 22fed8391b7b153616bd79c5f829cdd8a7edd5bd) built on Thu Apr 07 16:13:21 CEST 2022
2022-06-07 17:51:36,073 INFO  [io.jav.ope.Operator] (Quarkus Main Thread) Operator SDK 2.1.4 (commit: 5af3fec) built on Thu Apr 07 10:31:06 CEST 2022 starting...
2022-06-07 17:51:36,074 INFO  [io.jav.ope.Operator] (Quarkus Main Thread) Client version: 5.12.2
2022-06-07 17:51:36,895 INFO  [io.quarkus] (Quarkus Main Thread) voxxed-days-java-operator 0.0.1-SNAPSHOT on JVM (powered by Quarkus 2.7.5.Final) started in 2.941s. Listening on: http://localhost:8080
2022-06-07 17:51:36,897 INFO  [io.quarkus] (Quarkus Main Thread) Profile dev activated. Live Coding activated.
2022-06-07 17:51:36,897 INFO  [io.quarkus] (Quarkus Main Thread) Installed features: [cdi, kubernetes, kubernetes-client, micrometer, openshift-client, operator-sdk, smallrye-context-propagation, smallrye-health, vertx]

• vérifier que la CRD a bien été créée : kubectl get crds nginxoperators.fr.wilda

$ kubectl get crds nginxoperators.fr.wilda
NAME                      CREATED AT
nginxoperators.fr.wilda   2022-03-08T12:46:49Z

👋 Hello World with Quarkus

• la branche 04-hello-world contient le résultat de cette étape
• ajouter un champ name dans NginxOperatorSpec.java:

public class NginxOperatorSpec {
    private String name;

    public void setName(String name) {
        this.name = name;
    }

    public String getName() {
        return name;
    }
}

• vérifier que la CRD a bien été mise à jour:

$ kubectl get crds nginxoperators.fr.wilda -o yaml
apiVersion: apiextensions.k8s.io/v1
kind: CustomResourceDefinition
metadata:
creationTimestamp: "2022-03-08T12:46:49Z"
generation: 2
name: nginxoperators.fr.wilda
resourceVersion: "28080830902"
uid: acbc5340-292c-4a26-9003-d2d0b9da1683
spec:
conversion:
    strategy: None
group: fr.wilda
names:
    kind: NginxOperator
    listKind: NginxOperatorList
    plural: nginxoperators
    singular: nginxoperator
scope: Namespaced
versions:
- name: v1
    schema:
    openAPIV3Schema:
        properties:
        spec:
            properties:
            name:
                type: string
            type: object

• modifier le reconciler NginxOperatorReconciler.java:

public class NginxOperatorReconciler implements Reconciler<NginxOperator> { 
    private final KubernetesClient client;

    public NginxOperatorReconciler(KubernetesClient client) {
        this.client = client;
    }

    @Override
    public UpdateControl<NginxOperator> reconcile(NginxOperator resource, Context context) {

        System.out.println(String.format("Hello %s 🎉🎉 !!", resource.getSpec().getName()));

        return UpdateControl.noUpdate();
    }

    @Override
    public DeleteControl cleanup(NginxOperator resource, Context context) {
        System.out.println(String.format("Goodbye %s 😢", resource.getSpec().getName()));

        return Reconciler.super.cleanup(resource, context);
    }
}    

• créer le namespace test-helloworld-operator: kubectl create ns test-helloworld-operator
• créer la CR src/test/resources/cr-test-hello-world.yaml pour tester:

apiVersion: "fr.wilda/v1"
kind: NginxOperator
metadata:
  name: hello-world
spec:
  name: Voxxed Days Lux 2022

• créer la CR dans Kubernetes : kubectl apply -f ./src/test/resources/cr-test-hello-world.yaml -n test-helloworld-operator
• la sortie de l'opérateur devrait afficher le message Hello Voxxed Days Lux 2022 🎉🎉 !!
• supprimer la CR : kubectl delete nginxOperator/hello-world -n test-helloworld-operator
• la sortie de l'opérateur devrait ressembler à cela:

Hello Voxxed Days Lux 2022 🎉🎉 !!
Goodbye Voxxed Days Lux 2022 😢 

🤖 Nginx operator

• la branche 05-nginx-operator contient le résultat de cette étape
• modifier la classe NginxOperatorSpec.java:

public class NginxOperatorSpec {

    private Integer replicaCount;
    private Integer port;

    public void setPort(Integer port) {
        this.port = port;
    }

    public Integer getPort() {
        return port;
    }

    public void setReplicaCount(Integer replicaCount) {
        this.replicaCount = replicaCount;
    }

    public Integer getReplicaCount() {
        return replicaCount;
    }
}

• pour simplifier la création du Pod et du Service pour Nginx on passe par des manifests en YAML. src/main/resources/k8s/nginx-deployment.yaml:

apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-deployment
  labels:
    app: nginx
spec:
  replicas: 1
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: ovhplatform/hello:1.0
        ports:
        - containerPort: 80

src/main/resources/k8s/nginx-service.yaml:

apiVersion: v1
kind: Service
metadata:
  name: nginx-service
spec:
  type: NodePort
  selector:
    app: nginx
  ports:
    - port: 80
      targetPort: 80
      nodePort: 30080

• modifier le reconciler NginxOperatorReconciler.java:

public class NginxOperatorReconciler implements Reconciler<NginxOperator> {
  private final KubernetesClient client;

  public NginxOperatorReconciler(KubernetesClient client) {
    this.client = client;
  }

  @Override
  public UpdateControl<NginxOperator> reconcile(NginxOperator resource, Context context) {

    System.out.println("🛠️  Create / update Nginx resource operator ! 🛠️");

    String namespace = resource.getMetadata().getNamespace();

    // Load the Nginx deployment
    Deployment deployment = loadYaml(Deployment.class, "/k8s/nginx-deployment.yaml");
    // Apply the number of replicas and namespace
    deployment.getSpec().setReplicas(resource.getSpec().getReplicaCount());
    deployment.getMetadata().setNamespace(namespace);

    // Create or update Nginx server
    client.apps().deployments().inNamespace(namespace).createOrReplace(deployment);

    // Create service
    Service service = loadYaml(Service.class, "/k8s/nginx-service.yaml");
    Service existingService = client.services().inNamespace(resource.getMetadata().getNamespace())
        .withName("nginx-service").get();
    if (existingService == null || !existingService.getSpec().getPorts().get(0).getNodePort()
        .equals(resource.getSpec().getPort())) {
      service.getSpec().getPorts().get(0).setNodePort(resource.getSpec().getPort());
      client.services().inNamespace(namespace).createOrReplace(service);
    }

    return UpdateControl.noUpdate();
  }


  @Override
  public DeleteControl cleanup(NginxOperator resource, Context context) {
    System.out.println("💀 Delete Nginx resource operator ! 💀");

    client.apps().deployments().inNamespace(resource.getMetadata().getNamespace()).delete();
    client.services().inNamespace(resource.getMetadata().getNamespace()).withName("nginx-service")
        .delete();

    return Reconciler.super.cleanup(resource, context);
  }

  /**
   * Load a YAML file and transform it to a Java class.
   * 
   * @param clazz The java class to create
   * @param yamlPath The yaml file path in the classpath
   */
  private <T> T loadYaml(Class<T> clazz, String yamlPath) {
    try (InputStream is = getClass().getResourceAsStream(yamlPath)) {
      return Serialization.unmarshal(is, clazz);
    } catch (IOException ex) {
      throw new IllegalStateException("Cannot find yaml on classpath: " + yamlPath);
    }
  }
}

• créer le namespace test-nginx-operator: kubectl create ns test-nginx-operator
• créer la CR: src/test/resources/cr-test-nginx-operator.yaml:

apiVersion: "fr.wilda/v1"
kind: NginxOperator
metadata:
    name: nginx-voxxed-days
spec:
    replicaCount: 1
    port: 30080

• puis l'appliquer sur Kubernetes: kubectl apply -f ./src/test/resources/cr-test-nginx-operator.yaml -n test-nginx-operator
• l'opérateur devrait créer le pod Nginx et son service: Dans le terminal du quarkus:

🛠️  Create / update Nginx resource operator ! 🛠️

  Dans Kubernetes:

$ kubectl get pod,svc,nginxoperator  -n test-nginx-operator
NAME                                    READY   STATUS    RESTARTS   AGE
pod/nginx-deployment-84c7b56775-6ltb2   1/1     Running   0          77s

NAME                    TYPE       CLUSTER-IP    EXTERNAL-IP   PORT(S)        AGE
service/nginx-service   NodePort   10.3.114.75   <none>        80:30080/TCP   77s

NAME                                             AGE
nginxoperator.fr.wilda/nginx-voxxed-days   2m53s

• tester dans un navigateur ou par un curl l'accès à http://<node external ip>:30080, pour récupérer l'IP externe du node : kubectl get nodes -o wide

✏️ Update and delete service

• la branche 06-update-cr contient le résultat de cette étape
• changer le port et le nombre de replicas dans la CR cr-test-nginx-operator.yaml:

apiVersion: "fr.wilda/v1"
kind: NginxOperator
metadata:
  name: nginx-voxxed-days
spec:
  replicaCount: 2
  port: 30081

• appliquer la CR: kubectl apply -f ./src/test/resources/cr-test-nginx-operator.yaml -n test-nginx-operator
• vérifier que le nombre de pods et le port ont bien changés:

$ kubectl get pod,svc  -n test-nginx-operator
NAME                                    READY   STATUS    RESTARTS   AGE
pod/nginx-deployment-84c7b56775-6ltb2   1/1     Running   0          6m57s
pod/nginx-deployment-84c7b56775-cmgx4   1/1     Running   0          11s

NAME                    TYPE       CLUSTER-IP    EXTERNAL-IP   PORT(S)        AGE
service/nginx-service   NodePort   10.3.114.75   <none>        80:30081/TCP   6m57s

• tester dans un navigateur ou par un curl l'accès à http://<node external ip>:30081
• supprimer le service: kubectl delete svc/nginx-service -n test-nginx-operator
• vérifier qu'il n'est pas recréé:

$ kubectl get svc  -n test-nginx-operator

No resources found in test-nginx-operator namespace.

• supprimer la CR : kubectl delete nginxOperator/nginx-voxxed-days -n test-nginx-operator

👀 Watch service deletion

• la branche 07-watch-service-deletion contient le résultat de cette étape
• modifier le reconciler NginxOperatorReconciler.java pour qu'il surveille le service:

public class NginxOperatorReconciler
    implements Reconciler<NginxOperator>, EventSourceInitializer<NginxOperator> {    
    // ... unchanged code
  @Override
  public List<EventSource> prepareEventSources(EventSourceContext<NginxOperator> context) {
    System.out.println("👀 Create watcher on service 👀");
    SharedIndexInformer<Service> deploymentInformer = client.services().inAnyNamespace()
        .withLabel("app.kubernetes.io/managed-by", "nginx-operator").runnableInformer(0);

    return List.of(new InformerEventSource<>(deploymentInformer, Mappers.fromOwnerReference()));
  }


  @Override
  public UpdateControl<NginxOperator> reconcile(NginxOperator resource, Context context) {
    System.out.println("🛠️  Create / update Nginx resource operator ! 🛠️");

    String namespace = resource.getMetadata().getNamespace();

    // Load the Nginx deployment
    Deployment deployment = loadYaml(Deployment.class, "/k8s/nginx-deployment.yaml");
    // Apply the number of replicas and namespace
    deployment.getSpec().setReplicas(resource.getSpec().getReplicaCount());
    deployment.getMetadata().setNamespace(namespace);

    // Create or update Nginx server
    client.apps().deployments().inNamespace(namespace).createOrReplace(deployment);

    // Create service
    Service service = loadYaml(Service.class, "/k8s/nginx-service.yaml");
    Service existingService = client.services().inNamespace(resource.getMetadata().getNamespace())
        .withName("nginx-service").get();
    if (existingService == null || !existingService.getSpec().getPorts().get(0).getNodePort()
        .equals(resource.getSpec().getPort())) {
      service.getMetadata().getOwnerReferences().get(0).setName(resource.getMetadata().getName());
      service.getMetadata().getOwnerReferences().get(0).setUid(resource.getMetadata().getUid());
      service.getSpec().getPorts().get(0).setNodePort(resource.getSpec().getPort());
      client.services().inNamespace(namespace).createOrReplace(service);
    }

    return UpdateControl.noUpdate();
  }


    // ... unchanged code
}

• modifier le manifest du service comme suit:

apiVersion: v1
kind: Service
metadata:
  name: nginx-service
  ownerReferences:
    - apiVersion: apps/v1
      kind: NginxOperator
      name: ""
      uid: ""
  labels:
    app.kubernetes.io/managed-by: nginx-operator
spec:
  type: NodePort
  selector:
    app: nginx
  ports:
    - port: 80
      targetPort: 80
      nodePort: 30080

• appliquer la CR pour créer le pod Nginx: kubectl apply -f ./src/test/resources/cr-test-nginx-operator.yaml -n test-nginx-operator
• supprimer le service: kubectl delete svc/nginx-service -n test-nginx-operator
• l'opérateur le recrée:

    2022-04-04 16:23:17,025 INFO  [io.qua.dep.dev.RuntimeUpdatesProcessor] (pool-1-thread-1) Live reload total time: 1.464s 
    🛠️  Create / update Nginx resource operator ! 🛠️
    🛠️  Create / update Nginx resource operator ! 🛠️
    🛠️  Create / update Nginx resource operator ! 🛠️
    🛠️  Create / update Nginx resource operator ! 🛠️    

• vérifier que le service a bien été recréé: kubectl get svc -n test-nginx-operator

$ kubectl get svc  -n test-nginx-operator

NAME            TYPE       CLUSTER-IP     EXTERNAL-IP   PORT(S)        AGE
nginx-service   NodePort   10.3.230.222   <none>        80:30081/TCP   64s

• supprimer la CR: kubectl delete nginxOperator/nginx-voxxed-days -n test-nginx-operator

🛑 Add limit to replicas

• la branche 08-add-limit-to-replicas contient le résultat de cette étape
• modifier le reconciler NginxOperatorReconciler.java pour qu'il empêche la création de plus de 3 Pods:

public class NginxOperatorReconciler
    implements Reconciler<NginxOperator>, EventSourceInitializer<NginxOperator> {

  // Unchanged code ...

  @Override
  public UpdateControl<NginxOperator> reconcile(NginxOperator resource, Context context) {
    System.out.println("🛠️  Create / update Nginx resource operator ! 🛠️");

    String namespace = resource.getMetadata().getNamespace();

    // Load the Nginx deployment
    Deployment deployment = loadYaml(Deployment.class, "/k8s/nginx-deployment.yaml");
    // Apply the number of replicas if they are between 1 and 2 and set the namespace
    if (resource.getSpec().getReplicaCount() > 0 && resource.getSpec().getReplicaCount() < 3) {
      deployment.getSpec().setReplicas(resource.getSpec().getReplicaCount());
    } else {
      System.out
          .println(String.format("🛑 %s is not a valid number of replicas (must be 1 or 2) 🛑",
              resource.getSpec().getReplicaCount()));
    }
    deployment.getMetadata().setNamespace(namespace);

    // Unchanged code ...
  }

  // Unchanged code ...
}

• changer le nombre de replicas dans la CR cr-test-nginx-operator.yaml:

apiVersion: "fr.wilda/v1"
kind: NginxOperator
metadata:
  name: nginx-voxxed-days
spec:
  replicaCount: 5
  port: 30081

• appliquer la CR: kubectl apply -f ./src/test/resources/cr-test-nginx-operator.yaml -n test-nginx-operator
• vérifier que le nombre de pods n'a pas changé:

$ kubectl get pod  -n test-nginx-operator
NAME                                    READY   STATUS    RESTARTS   AGE
pod/nginx-deployment-84c7b56775-6ltb2   1/1     Running   0          6m57s
pod/nginx-deployment-84c7b56775-cmgx4   1/1     Running   0          11s

• et que l'opérateur a affiché le message d'erreur indiquant que le nombre de pods est invalide:

🛑 5 is not a valid number of replicas (must be 1 or 2) 🛑

• supprimer la CR: kubectl delete nginxOperator/nginx-voxxed-days -n test-nginx-operator

🐳 Packaging & deployment to K8s

• la branche 09-package-deploy contient le résultat de cette étape
• arrêter le mode dev de Quarkus
• modifier le fichier application.properties:

quarkus.container-image.build=true
quarkus.container-image.push=false
quarkus.container-image.group=wilda
quarkus.container-image.name=voxxed-days-java-operator

# set to true to automatically apply CRDs to the cluster when they get regenerated
quarkus.operator-sdk.crd.apply=true
# set to true to automatically generate CSV from your code
quarkus.operator-sdk.generate-csv=false

quarkus.kubernetes.namespace=voxxed-days-java-operator

• ajouter un fichier src/main/kubernetes/kubernetes.yml contenant la définition des ClusterRole / ClusterRoleBinding spécifiques à l'opérateur:

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
    name: service-deployment-cluster-role
    namespace: voxxed-days-java-operator
rules:
  - apiGroups:
    - ""
    resources:
    - secrets
    - serviceaccounts
    - services  
    verbs:
    - "*"
  - apiGroups:
    - "apps"
    verbs:
        - "*"
    resources:
    - deployments
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: service-deployment-cluster-role-binding
  namespace: voxxed-days-java-operator
roleRef:
  kind: ClusterRole
  apiGroup: rbac.authorization.k8s.io
  name: service-deployment-cluster-role
subjects:
  - kind: ServiceAccount
    name: voxxed-days-java-operator
    namespace: voxxed-days-java-operator
---

• lancer le packaging : mvn clean package
• vérifier que l'image a bien été générée: : docker images | grep voxxed-days-java-operator:

  wilda/voxxed-days-java-operator          0.0.1-SNAPSHOT         97dac3e852da   5 minutes ago   232MB

• push de l'image : docker login && docker push wilda/voxxed-days-java-operator:0.0.1-SNAPSHOT
• créer le namespace voxxed-days-java-operator: kubectl create ns voxxed-days-java-operator
• si nécessaire créer la CRD: kubectl apply -f ./target/kubernetes/nginxoperators.fr.wilda-v1.yml
• appliquer le manifest créé : kubectl apply -f ./target/kubernetes/kubernetes.yml
• vérifier que tout va bien:

$ kubectl get pod -n voxxed-days-java-operator

NAME                                         READY   STATUS    RESTARTS   AGE
voxxed-days-java-operator-769df755db-p6qzj   1/1     Running   0          51s    

$ kubectl logs voxxed-days-java-operator-769df755db-p6qzj -n voxxed-days-java-operator
```bash
kubectl logs voxxed-days-java-operator-769df755db-p6qzj -n voxxed-days-java-operator
__  ____  __  _____   ___  __ ____  ______ 
 --/ __ \/ / / / _ | / _ \/ //_/ / / / __/ 
 -/ /_/ / /_/ / __ |/ , _/ ,< / /_/ /\ \   
--\___\_\____/_/ |_/_/|_/_/|_|\____/___/   
2022-06-08 09:14:05,756 INFO  [io.jav.ope.Operator] (main) Registered reconciler: 'nginxoperatorreconciler' for resource: 'class wilda.fr.NginxOperator' for namespace(s): [all namespaces]
2022-06-08 09:14:05,785 INFO  [io.qua.ope.run.AppEventListener] (main) Quarkus Java Operator SDK extension 3.0.7 (commit: 22fed83 on branch: 22fed8391b7b153616bd79c5f829cdd8a7edd5bd) built on Thu Apr 07 14:13:21 GMT 2022
2022-06-08 09:14:05,785 INFO  [io.jav.ope.Operator] (main) Operator SDK 2.1.4 (commit: 5af3fec) built on Thu Apr 07 08:31:06 GMT 2022 starting...
2022-06-08 09:14:05,785 INFO  [io.jav.ope.Operator] (main) Client version: 5.12.2
👀 Create watcher on service 👀
2022-06-08 09:14:07,002 INFO  [io.quarkus] (main) voxxed-days-java-operator 0.0.1-SNAPSHOT on JVM (powered by Quarkus 2.7.5.Final) started in 3.671s. Listening on: http://0.0.0.0:8080
2022-06-08 09:14:07,003 INFO  [io.quarkus] (main) Profile prod activated. 
2022-06-08 09:14:07,003 INFO  [io.quarkus] (main) Installed features: [cdi, kubernetes, kubernetes-client, micrometer, openshift-client, operator-sdk, smallrye-context-propagation, smallrye-health, vertx]

• tester l'opérateur en créant une CR: kubectl apply -f ./src/test/resources/cr-test-nginx-operator.yaml -n test-nginx-operator
• puis en la supprimant: kubectl delete nginxOperator/nginx-voxxed-days -n test-nginx-operator
• et constater que tout va bien:

  🛠️  Create / update Nginx resource operator ! 🛠️                                                                                   │
  🛠️  Create / update Nginx resource operator ! 🛠️                                                                                   │
  💀 Delete Nginx resource operator ! 💀      

• supprimer l'opérateur si souhaité: kubectl delete -f ./target/kubernetes/kubernetes.yml
• supprimer les namespaces: kubectl delete ns test-nginx-operator voxxed-days-java-operator test-helloworld-operator
• supprimer la crd: kubectl delete crds/nginxoperators.fr.wilda