How to debug Kubernetes? (Deployments, Services & Ingress) (antonputr…

…a#226)

README.md

@@ -1,6 +1,6 @@
-# New Video - https://youtu.be/iE9Qb8dHqWI
+# New Video - https://youtu.be/hixs2GIGrUw
 
-[<img src="assets/192.png?raw=true">](https://youtu.be/iE9Qb8dHqWI)
+[<img src="assets/193.png?raw=true">](https://youtu.be/hixs2GIGrUw)
 
 # Playlists
 

docs/contents.md

@@ -121,3 +121,4 @@
 - [190 - What is a Reverse Proxy? (vs. Forward Proxy)](../lessons/190)
 - [191 - Types of Load Balancing Algorithms](../lessons/191)
 - [192 - Kubernetes RBAC Explained](../lessons/192)
+- [193 - How to debug Kubernetes? (Deployments, Services & Ingress)](../lessons/193)

lessons/193/1-example/0-deployment.yaml

@@ -0,0 +1,22 @@
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: my-deployment
+  labels:
+    team: dev1
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: my-app
+  template:
+    metadata:
+      labels:
+        app: my-app
+    spec:
+      containers:
+        - image: aputra/myapp-193:v6
+          name: my-container-1
+          ports:
+            - containerPort: 8080

lessons/193/1-example/1-service.yaml

@@ -0,0 +1,12 @@
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: my-service
+spec:
+  type: ClusterIP
+  ports:
+    - port: 7070
+      targetPort: 8080
+  selector:
+    app: my-app

lessons/193/1-example/2-ingress.yaml

@@ -0,0 +1,16 @@
+---
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: my-ingress
+spec:
+  rules:
+    - http:
+        paths:
+          - pathType: Prefix
+            path: /
+            backend:
+              service:
+                name: my-service
+                port:
+                  number: 7070

lessons/193/10-example/0-pod.yaml

@@ -0,0 +1,11 @@
+---
+apiVersion: v1
+kind: Pod
+metadata:
+  name: myapp-1
+spec:
+  containers:
+    - name: myapp
+      image: aputra/myapp-193:v16
+      ports:
+        - containerPort: 8080

lessons/193/10-example/1-pod.yaml

@@ -0,0 +1,11 @@
+---
+apiVersion: v1
+kind: Pod
+metadata:
+  name: myapp-2
+spec:
+  containers:
+    - name: myapp
+      image: ubuntu:latest
+      command: ["/bin/bash", "-c", "--"]
+      args: ["sleep 2; echo 'System error: failed to write to Kafka'; exit 1;"]

lessons/193/10-example/2-pod.yaml

@@ -0,0 +1,11 @@
+---
+apiVersion: v1
+kind: Pod
+metadata:
+  name: myapp-3
+spec:
+  containers:
+    - name: myapp
+      image: aputra/myapp-193:v6
+      ports:
+        - containerPort: 8080

lessons/193/11-example/0-deployment.yaml

@@ -0,0 +1,29 @@
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: my-deployment
+  labels:
+    team: dev1
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: my-app
+  template:
+    metadata:
+      labels:
+        app: my-app
+    spec:
+      containers:
+        - image: aputra/myapp-193:v6
+          name: my-container-1
+          ports:
+            - containerPort: 8080
+          volumeMounts:
+            - name: config-volume
+              mountPath: /etc/config
+      volumes:
+        - name: config-volume
+          configMap:
+            name: config

lessons/193/11-example/1-configmap.yaml

@@ -0,0 +1,9 @@
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: my-config
+data:
+  properties: |
+    level=hard
+    lives=3

lessons/193/12-example/0-deployment.yaml

@@ -0,0 +1,31 @@
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: my-deployment
+  labels:
+    team: dev1
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: my-app
+  template:
+    metadata:
+      labels:
+        app: my-app
+    spec:
+      containers:
+        - image: aputra/myapp-193:v6
+          name: my-container-1
+          ports:
+            - containerPort: 8080
+      affinity:
+        nodeAffinity:
+          requiredDuringSchedulingIgnoredDuringExecution:
+            nodeSelectorTerms:
+              - matchExpressions:
+                  - key: role
+                    operator: In
+                    values:
+                      - spot

lessons/193/13-example/0-deployment.yaml

@@ -0,0 +1,28 @@
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: my-deployment
+  labels:
+    team: dev1
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: my-app
+  template:
+    metadata:
+      labels:
+        app: my-app
+    spec:
+      containers:
+        - image: aputra/myapp-193:v6
+          name: my-container-1
+          ports:
+            - containerPort: 8080
+          readinessProbe:
+            httpGet:
+              path: /
+              port: 8080
+            initialDelaySeconds: 3
+            periodSeconds: 5

lessons/193/14-example/0-deployment.yaml

@@ -0,0 +1,22 @@
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: my-deployment
+  labels:
+    team: dev1
+spec:
+  replicas: 2
+  selector:
+    matchLabels:
+      app: my-app
+  template:
+    metadata:
+      labels:
+        app: my-app
+    spec:
+      containers:
+        - image: aputra/myapp-193:v6
+          name: my-container-1
+          ports:
+            - containerPort: 8080

lessons/193/14-example/1-service.yaml

@@ -0,0 +1,12 @@
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: my-service
+spec:
+  type: ClusterIP
+  ports:
+    - port: 7070
+      targetPort: 8080
+  selector:
+    app: my-app

lessons/193/14-example/2-ingress.yaml

@@ -0,0 +1,16 @@
+---
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: my-ingress
+spec:
+  rules:
+    - http:
+        paths:
+          - pathType: Prefix
+            path: /
+            backend:
+              service:
+                name: my-service
+                port:
+                  number: 7070

lessons/193/2-example/0-deployment.yaml

@@ -0,0 +1,22 @@
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: my-deployment
+  labels:
+    team: dev1
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: my-app
+  template:
+    metadata:
+      labels:
+        app: my-app
+    spec:
+      containers:
+        - image: aputra/myapp-193:v6
+          name: my-container-1
+          ports:
+            - containerPort: 8080

lessons/193/2-example/1-service.yaml

@@ -0,0 +1,12 @@
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: my-service
+spec:
+  type: ClusterIP
+  ports:
+    - port: 7070
+      targetPort: 8080
+  selector:
+    app: my-app

lessons/193/3-example/0-deployment.yaml

@@ -0,0 +1,24 @@
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: my-blue-deployment
+  labels:
+    team: dev1
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: my-app
+      deployment: blue
+  template:
+    metadata:
+      labels:
+        app: my-app
+        deployment: blue
+    spec:
+      containers:
+        - image: aputra/myapp-193:v6
+          name: my-container-1
+          ports:
+            - containerPort: 8080

lessons/193/3-example/1-service.yaml

@@ -0,0 +1,13 @@
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: my-blue-service
+spec:
+  type: ClusterIP
+  ports:
+    - port: 7070
+      targetPort: 8080
+  selector:
+    app: my-app
+    deployment: blue

lessons/193/4-example/0-deployment.yaml

@@ -0,0 +1,24 @@
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: my-blue-deployment
+  labels:
+    team: dev1
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: my-app
+      deployment: blue
+  template:
+    metadata:
+      labels:
+        app: my-app
+        deployment: blue
+    spec:
+      containers:
+        - image: aputra/myapp-193:v6
+          name: my-container-1
+          ports:
+            - containerPort: 8080

lessons/193/4-example/1-service.yaml

@@ -0,0 +1,12 @@
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: my-blue-service
+spec:
+  type: ClusterIP
+  ports:
+    - port: 8080
+  selector:
+    app: my-app
+    deployment: blue

lessons/193/5-example/0-deployment.yaml

@@ -0,0 +1,23 @@
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: my-deployment
+  labels:
+    team: dev1
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: my-app
+  template:
+    metadata:
+      labels:
+        app: my-app
+    spec:
+      containers:
+        - image: aputra/myapp-193:v6
+          name: my-container-1
+          ports:
+            - name: web
+              containerPort: 8080