feat: ✨ Namespace: Defining namespace for each manifest

Here we are specifying the "namespace" field into the menifests accordingly to it purpose.

k8s/configmap-env.yaml

@@ -2,6 +2,7 @@ apiVersion: v1
 kind: ConfigMap
 metadata:
   name: configmap-app-env
+  namespace: server
 data:
   NAME: "Gabriel Costa"
   AGE: "23"

k8s/configmap-injection.yaml

@@ -2,6 +2,7 @@ apiVersion: v1
 kind: ConfigMap
 metadata:
   name: configmap-app-injection
+  namespace: server
 data:
   config: |
     Gabriel, Fulano, Ciclano

k8s/deployment.yaml

@@ -2,6 +2,7 @@ apiVersion: apps/v1
 kind: Deployment
 metadata:
   name: go-http-app
+  namespace: server
   labels:
     app: go-http-app
     tier: backend

k8s/hpa.yaml

@@ -2,6 +2,7 @@ apiVersion: autoscaling/v2
 kind: HorizontalPodAutoscaler
 metadata:
   name: go-http-app-hpa
+  namespace: server
 spec:
   scaleTargetRef:
     apiVersion: apps/v1

k8s/ingress.yaml

@@ -2,6 +2,7 @@ apiVersion: networking.k8s.io/v1
 kind: Ingress
 metadata:
   name: nginx-ingress
+  namespace: server
   annotations:
     # Define which ingress class this manifest will use
     kubernetes.io/ingress.class: "nginx"

k8s/mysql-headless-svc.yaml

@@ -2,6 +2,7 @@ apiVersion: v1
 kind: Service
 metadata:
   name: mysql-headless
+  namespace: database
 spec:
   clusterIP: None
   selector:

k8s/mysql-secret.yaml

@@ -2,6 +2,7 @@ apiVersion: v1
 kind: Secret
 metadata:
   name: mysql-root-password
+  namespace: database
 type: Opaque
 data:
   password: YWRtaW4K

k8s/namespaces/deployment-example.yaml

@@ -0,0 +1,22 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: server
+spec:
+  selector:
+    matchLabels:
+      app: server
+  template:
+    metadata:
+      labels:
+        app: server
+    spec:
+      containers:
+      - name: server
+        image: wesleywillians/hello-express
+        resources:
+          limits:
+            memory: "128Mi"
+            cpu: "500m"
+        ports:
+        - containerPort: 3000

k8s/persistent-volume-claim.yaml

@@ -2,6 +2,7 @@ apiVersion: v1
 kind: PersistentVolumeClaim
 metadata:
   name: example-pvc
+  namespace: database
 spec:
   resources:
     requests:

k8s/secret.yaml

@@ -2,6 +2,7 @@ apiVersion: v1
 kind: Secret
 metadata:
   name: secret-app
+  namespace: server
 type: Opaque
 data:
   USER: Z2FicmllbAo=

k8s/service.yaml

@@ -2,6 +2,7 @@ apiVersion: v1
 kind: Service
 metadata:
   name: go-http-app-service
+  namespace: server
   labels:
     app: go-http-app
     tier: backend

k8s/statefulset.yaml

@@ -2,6 +2,7 @@ apiVersion: apps/v1
 kind: StatefulSet
 metadata:
   name: mysql-example
+  namespace: database
 spec:
   selector:
     matchLabels: