build: step4

issue #4

Author: smhmayboudi

.doc/5-tutorial.md

@@ -142,10 +142,11 @@ make deploy IMG=kind-registry:5000/library/controller:latest
 ```
 
 ```shell
-kubectl -n custom-kubernetes-controller-system get deployment
-kubectl -n custom-kubernetes-controller-system describe deployment/custom-kubernetes-controller-controller-manager
+kubectl -n custom-kubernetes-controller-system get deployments
+kubectl -n custom-kubernetes-controller-system describe deployments custom-kubernetes-controller-controller-manager
 kubectl -n custom-kubernetes-controller-system describe pod custom-kubernetes-controller-controller-manager
-kubectl -n custom-kubernetes-controller-system logs deployment/custom-kubernetes-controller-controller-manager
+kubectl -n custom-kubernetes-controller-system logs deployments custom-kubernetes-controller-controller-manager
+kubectl -n custom-kubernetes-controller-system logs pods/custom-kubernetes-controller-controller-manager-...
 
 kubectl get pods --all-namespaces
 kubectl get deployments --all-namespaces

.doc/README.md

@@ -11,6 +11,7 @@
 ## Localy
 
 ```shell
+export NGINX_IMAGE="nginx:1.25.3-alpine3.18-slim"
 make install run
 
 kubectl apply -f config/samples/
@@ -20,6 +21,8 @@ make uninstall
 
 ## Docker
 
+The script provided at [this link](https://kind.sigs.k8s.io/docs/user/local-registry/).
+
 ```shell
 ./.script/kind-with-registry.sh
 
@@ -48,3 +51,11 @@ kubectl apply -f config/samples/
 
 operator-sdk cleanup custom-kubernetes-controller
 ```
+
+## Check the Pods
+
+```shell
+kubectl get deployments
+kubectl logs deployments/dummy1
+kubectl describe deployments/dummy1
+```

api/v1alpha1/dummy_types.go

@@ -28,7 +28,8 @@ type DummySpec struct {
 	// INSERT ADDITIONAL SPEC FIELDS - desired state of cluster
 	// Important: Run "make" to regenerate code after modifying this file
 
-	// Message is an example field of Dummy.
+	// Message is a field of Dummy Spec.
+	// +kubebuilder:default:="I'm just a dummy"
 	// +operator-sdk:csv:customresourcedefinitions:type=spec
 	Message string `json:"message,omitempty"`
 }
@@ -38,13 +39,20 @@ type DummyStatus struct {
 	// INSERT ADDITIONAL STATUS FIELD - define observed state of cluster
 	// Important: Run "make" to regenerate code after modifying this file
 
-	// SpecEcho is an example field of Dummy Status.
+	// SpecEcho is an field of Dummy Status.
+	// +kubebuilder:default:="I'm just a dummy"
 	// +operator-sdk:csv:customresourcedefinitions:type=status
 	SpecEcho string `json:"specEcho,omitempty"`
+
+	// PodStatus is an field of Dummy Status.
+	// +kubebuilder:default:="Pending"
+	// +operator-sdk:csv:customresourcedefinitions:type=status
+	PodStatus string `json:"podStatus,omitempty"`
 }
 
 //+kubebuilder:object:root=true
 //+kubebuilder:subresource:status
+//+kubebuilder:resource:scope=Namespaced
 
 // Dummy is the Schema for the dummies API
 type Dummy struct {
@@ -65,5 +73,13 @@ type DummyList struct {
 }
 
 func init() {
-	SchemeBuilder.Register(&Dummy{}, &DummyList{})
+	SchemeBuilder.Register(&Dummy{
+		Spec: DummySpec{
+			Message: "I'm just a dummy",
+		},
+		Status: DummyStatus{
+			SpecEcho:  "I'm just a dummy",
+			PodStatus: "Pending",
+		},
+	}, &DummyList{})
 }

cmd/main.go

@@ -92,6 +92,9 @@ func main() {
 	if err = (&controller.DummyReconciler{
 		Client: mgr.GetClient(),
 		Scheme: mgr.GetScheme(),
+		// Add a Recorder to the reconciler.
+		// This allows the operator author to emit events during reconcilliation.
+		Recorder: mgr.GetEventRecorderFor("dummy-controller"),
 	}).SetupWithManager(mgr); err != nil {
 		setupLog.Error(err, "unable to create controller", "controller", "Dummy")
 		os.Exit(1)

config/crd/bases/interview.com_dummies.yaml

@@ -35,14 +35,20 @@ spec:
             description: DummySpec defines the desired state of Dummy
             properties:
               message:
-                description: Message is an example field of Dummy.
+                default: I'm just a dummy
+                description: Message is a field of Dummy Spec.
                 type: string
             type: object
           status:
             description: DummyStatus defines the observed state of Dummy
             properties:
+              podStatus:
+                default: Pending
+                description: PodStatus is an field of Dummy Status.
+                type: string
               specEcho:
-                description: SpecEcho is an example field of Dummy Status.
+                default: I'm just a dummy
+                description: SpecEcho is an field of Dummy Status.
                 type: string
             type: object
         type: object

config/manager/manager.yaml

@@ -72,6 +72,9 @@ spec:
         - --leader-elect
         image: controller:latest
         name: manager
+        env:
+        - name: NGINX_IMAGE
+          value: nginx:1.25.3-alpine3.18-slim
         securityContext:
           allowPrivilegeEscalation: false
           capabilities:

config/samples/_v1alpha1_dummy.yaml

@@ -1,12 +1,12 @@
 apiVersion: interview.com/v1alpha1
 kind: Dummy
 metadata:
-  # labels:
-  #   app.kubernetes.io/name: dummy
-  #   app.kubernetes.io/instance: dummy-sample
-  #   app.kubernetes.io/part-of: custom-kubernetes-controller
-  #   app.kubernetes.io/managed-by: kustomize
-  #   app.kubernetes.io/created-by: custom-kubernetes-controller
+  labels:
+    app.kubernetes.io/name: dummy
+    app.kubernetes.io/instance: dummy-sample
+    app.kubernetes.io/part-of: custom-kubernetes-controller
+    app.kubernetes.io/managed-by: kustomize
+    app.kubernetes.io/created-by: custom-kubernetes-controller
   name: dummy1
   namespace: default
 spec: