chapter9: update manifests

Author: gwarrior01

Chapter09/9.1.1_Volume/emptydir_pod.yaml

@@ -7,7 +7,7 @@ metadata:
 spec:
   containers:
   - name: timeserver-container
-    image: docker.io/wdenniss/timeserver:5
+    image: timeserver-java:5
     volumeMounts:
     - name: cache-volume
       mountPath: /app/cache/

Chapter09/9.1.1_Volume/network-utils.yaml

@@ -0,0 +1,23 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: network-utils
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: network-utils
+  template:
+    metadata:
+      labels:
+        app: network-utils
+    spec:
+      containers:
+        - name: network-utils
+          image: amouat/network-utils
+          command: ["/bin/bash"]
+          tty: true
+          stdin: true
+          env:
+            - name: TIMESERVER_ENDPOINT
+              value: http://$(TIMESERVER_SERVICE_HOST):$(TIMESERVER_SERVICE_PORT)

Chapter09/9.1.1_Volume/timeserver-configmap.yaml

@@ -0,0 +1,13 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: timeserver-config
+data:
+  DEFAULT_TIME: 2025-02-28T00:00:00Z
+  LONG_CONFIG: |
+    This is a long config value that spans multiple lines.
+    It can be used to provide detailed configuration settings
+    for the timeserver application.
+
+
+#2025_08_12_17_37_02.1677463186:

Chapter09/9.1.1_Volume/timeserver-deploy.yaml

@@ -0,0 +1,49 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: timeserver
+spec:
+  replicas: 3
+  selector:
+    matchLabels:
+      pod: timeserver-pod
+  template:
+    metadata:
+      labels:
+        pod: timeserver-pod
+    spec:
+      containers:
+      - name: timeserver-container
+        image: timeserver-java:6
+        resources:
+          requests:
+            cpu: 200m
+            memory: 250Mi
+          limits:
+            cpu: 300m
+            memory: 400Mi
+        volumeMounts:
+          - name: configmap-volume
+            mountPath: /tmp/conf/etc.conf
+#        envFrom:
+#          - configMapRef:
+#              name: timeserver-config
+        env:
+          - name: KUBERNETES_POD_NAME
+            valueFrom:
+              fieldRef:
+                fieldPath: metadata.name
+          - name: DEFAULT_TIME
+            valueFrom:
+              configMapKeyRef:
+                key: DEFAULT_TIME
+                name: timeserver-config
+          - name: SECRET_TIME
+            valueFrom:
+              secretKeyRef:
+                key: SECRET_TIME
+                name: timeserver-secret
+      volumes:
+        - name: configmap-volume
+          configMap:
+            name: timeserver-config

Chapter09/9.1.1_Volume/timeserver-secret.yaml

@@ -0,0 +1,8 @@
+apiVersion: v1
+kind: Secret
+metadata:
+  name: timeserver-secret
+data:
+  SECRET_TIME_ENCODE: MjAyNS0wOC0xNVQwMDowMDowMFo=
+stringData:
+  SECRET_TIME: 2025-08-15T00:00:00Z

Chapter09/9.1.1_Volume/timeserver-service.yaml

@@ -0,0 +1,12 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: timeserver
+spec:
+  selector:
+    pod: timeserver-pod
+  ports:
+  - port: 8080
+    targetPort: 8080
+    protocol: TCP
+  type: ClusterIP

Chapter09/9.1.4_Deployment_MariaDB/HELP.MD

@@ -0,0 +1,11 @@
+kubectl exec -it mariadb-client -- bash
+
+mariadb -h mariadb -u root -p --skip-ssl
+
+SHOW DATABASES;
+USE mysql;
+SHOW TABLES;
+
+CREATE TABLE IF NOT EXISTS ping(id INT PRIMARY KEY AUTO_INCREMENT, msg VARCHAR(64));
+INSERT INTO ping(msg) VALUES('hello from k8s');
+SELECT * FROM ping;

Chapter09/9.1.4_Deployment_MariaDB/client.yaml

@@ -0,0 +1,11 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: mariadb-client
+  labels:
+    app: mariadb-client
+spec:
+  containers:
+    - name: mariadb-client
+      image: mariadb:11
+      command: [ "sleep", "infinity" ]

Chapter09/9.1.4_Deployment_MariaDB/mariadb-deploy.yaml

@@ -22,11 +22,11 @@ spec:
           name: mariadb-volume
         resources:
           requests:
-            cpu: 1
+            cpu: 1000m
             memory: 4Gi
         env:
         - name: MARIADB_ROOT_PASSWORD
-          value: "your database password"
+          value: "password"
       volumes:
       - name: mariadb-volume
         persistentVolumeClaim:
@@ -42,3 +42,4 @@ spec:
   resources:
     requests:
       storage: 2Gi
+  storageClassName: custom

Chapter09/9.1.4_Deployment_MariaDB/mariadb-service.yaml

@@ -0,0 +1,12 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: mariadb
+spec:
+  selector:
+    app: mariadb
+  ports:
+  - port: 3306
+    targetPort: 3306
+    protocol: TCP
+  type: ClusterIP