From c7be60e1b773856fadf1f27a7597e5bc58decf20 Mon Sep 17 00:00:00 2001
From: kevencript <kevencript@gmail.com>
Date: Tue, 21 Mar 2023 14:32:09 -0300
Subject: [PATCH] feat: :sparkles: Namespace: Defining namespace for each
 manifest

Here we are specifying the "namespace" field into the menifests accordingly to it purpose.
---
 k8s/configmap-env.yaml                 |  1 +
 k8s/configmap-injection.yaml           |  1 +
 k8s/deployment.yaml                    |  1 +
 k8s/hpa.yaml                           |  1 +
 k8s/ingress.yaml                       |  1 +
 k8s/mysql-headless-svc.yaml            |  1 +
 k8s/mysql-secret.yaml                  |  1 +
 k8s/namespace.yaml                     |  4 ----
 k8s/namespaces/deployment-example.yaml | 22 ++++++++++++++++++++++
 k8s/persistent-volume-claim.yaml       |  1 +
 k8s/secret.yaml                        |  1 +
 k8s/service.yaml                       |  1 +
 k8s/statefulset.yaml                   |  1 +
 13 files changed, 33 insertions(+), 4 deletions(-)
 delete mode 100644 k8s/namespace.yaml
 create mode 100644 k8s/namespaces/deployment-example.yaml

diff --git a/k8s/configmap-env.yaml b/k8s/configmap-env.yaml
index 3393da2..d0ed1c2 100644
--- a/k8s/configmap-env.yaml
+++ b/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"
diff --git a/k8s/configmap-injection.yaml b/k8s/configmap-injection.yaml
index 187febb..394e5fc 100644
--- a/k8s/configmap-injection.yaml
+++ b/k8s/configmap-injection.yaml
@@ -2,6 +2,7 @@ apiVersion: v1
 kind: ConfigMap
 metadata:
   name: configmap-app-injection
+  namespace: server
 data:
   config: |
     Gabriel, Fulano, Ciclano
diff --git a/k8s/deployment.yaml b/k8s/deployment.yaml
index 6aa6785..ae824a3 100644
--- a/k8s/deployment.yaml
+++ b/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
diff --git a/k8s/hpa.yaml b/k8s/hpa.yaml
index e6941f4..dd233d4 100644
--- a/k8s/hpa.yaml
+++ b/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
diff --git a/k8s/ingress.yaml b/k8s/ingress.yaml
index 583dd07..dc25ca2 100644
--- a/k8s/ingress.yaml
+++ b/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"
diff --git a/k8s/mysql-headless-svc.yaml b/k8s/mysql-headless-svc.yaml
index c74265c..eb8303f 100644
--- a/k8s/mysql-headless-svc.yaml
+++ b/k8s/mysql-headless-svc.yaml
@@ -2,6 +2,7 @@ apiVersion: v1
 kind: Service
 metadata:
   name: mysql-headless
+  namespace: database
 spec:
   clusterIP: None
   selector:
diff --git a/k8s/mysql-secret.yaml b/k8s/mysql-secret.yaml
index 9b5e3eb..e96e96c 100644
--- a/k8s/mysql-secret.yaml
+++ b/k8s/mysql-secret.yaml
@@ -2,6 +2,7 @@ apiVersion: v1
 kind: Secret
 metadata:
   name: mysql-root-password
+  namespace: database
 type: Opaque
 data:
   password: YWRtaW4K
diff --git a/k8s/namespace.yaml b/k8s/namespace.yaml
deleted file mode 100644
index d029421..0000000
--- a/k8s/namespace.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
-apiVersion: v1
-kind: Namespace
-metadata:
-  name: k8s-fundamentals
diff --git a/k8s/namespaces/deployment-example.yaml b/k8s/namespaces/deployment-example.yaml
new file mode 100644
index 0000000..72d6f97
--- /dev/null
+++ b/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
diff --git a/k8s/persistent-volume-claim.yaml b/k8s/persistent-volume-claim.yaml
index 873fe0f..84df982 100644
--- a/k8s/persistent-volume-claim.yaml
+++ b/k8s/persistent-volume-claim.yaml
@@ -2,6 +2,7 @@ apiVersion: v1
 kind: PersistentVolumeClaim
 metadata:
   name: example-pvc
+  namespace: database
 spec:
   resources:
     requests:
diff --git a/k8s/secret.yaml b/k8s/secret.yaml
index ec2bb93..1f8fc99 100644
--- a/k8s/secret.yaml
+++ b/k8s/secret.yaml
@@ -2,6 +2,7 @@ apiVersion: v1
 kind: Secret
 metadata:
   name: secret-app
+  namespace: server
 type: Opaque
 data:
   USER: Z2FicmllbAo=
diff --git a/k8s/service.yaml b/k8s/service.yaml
index 8cf9e8d..ff7653c 100644
--- a/k8s/service.yaml
+++ b/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
diff --git a/k8s/statefulset.yaml b/k8s/statefulset.yaml
index 87464b8..793104b 100644
--- a/k8s/statefulset.yaml
+++ b/k8s/statefulset.yaml
@@ -2,6 +2,7 @@ apiVersion: apps/v1
 kind: StatefulSet
 metadata:
   name: mysql-example
+  namespace: database
 spec:
   selector:
     matchLabels: