Added labs

Author: nirgeier

.mkdocs-1.swp

@@ -0,0 +1,48 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: codewizard
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: secrets-app
+  namespace: codewizard
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      name: secrets-app
+  template:
+    metadata:
+      labels:
+        name: secrets-app
+    spec:
+      containers:
+        - name: secrets-app
+          image: nirgeier/k8s-secrets-sample
+          imagePullPolicy: Always
+          ports:
+            - containerPort: 5000
+          env:
+            - name: LANGUAGE
+              value: Hebrew
+            - name: TOKEN
+              value: Hard-To-Guess2
+          resources:
+            limits:
+              cpu: "500m"
+              memory: "256Mi"
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: codewizard-secrets
+  namespace: codewizard
+spec:
+  selector:
+    app: codewizard-secrets
+  ports:
+    - protocol: TCP
+      port: 5000
+      targetPort: 5000

Labs/00-VerifyCluster/a.yml

@@ -0,0 +1,57 @@
+#!/bin/bash
+
+# Colors for output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BLUE='\033[0;34m'
+NC='\033[0m' # No Color
+
+echo -e "${BLUE}Starting Kubernetes Cluster Verification Lab Script${NC}"
+echo -e "${BLUE}====================================================${NC}"
+
+# Step 1: Installing Kind
+echo -e "${YELLOW}Step 1: Installing Kind${NC}"
+echo -e "${GREEN}Installing Kind using Homebrew...${NC}"
+brew install kind
+echo -e "${GREEN}Verifying Kind installation...${NC}"
+kind version
+echo -e "${GREEN}Kind installation completed.${NC}"
+echo ""
+
+# Step 2: Create Kind cluster
+echo -e "${YELLOW}Step 2: Creating Kind cluster${NC}"
+echo -e "${GREEN}Running: kind create cluster${NC}"
+kind create cluster
+echo -e "${GREEN}Kind cluster creation completed.${NC}"
+echo ""
+
+# Step 3: Check the Kind cluster status
+echo -e "${YELLOW}Step 3: Checking Kind cluster status${NC}"
+echo -e "${GREEN}Running: kubectl cluster-info${NC}"
+kubectl cluster-info
+echo -e "${GREEN}Cluster status check completed.${NC}"
+echo ""
+
+# Step 4: Verify that the cluster is up and running (kubectl cluster-info again)
+echo -e "${YELLOW}Step 4: Verifying cluster is up and running${NC}"
+echo -e "${GREEN}Running: kubectl cluster-info${NC}"
+kubectl cluster-info
+echo -e "${GREEN}Cluster verification completed.${NC}"
+echo ""
+
+# Step 5: Verify kubectl configuration
+echo -e "${YELLOW}Step 5: Verifying kubectl configuration${NC}"
+echo -e "${GREEN}Running: kubectl config view${NC}"
+kubectl config view
+echo -e "${GREEN}Kubectl configuration verified.${NC}"
+echo ""
+
+# Step 6: Verify that you can "talk" to your cluster
+echo -e "${YELLOW}Step 6: Checking nodes in the cluster${NC}"
+echo -e "${GREEN}Running: kubectl get nodes${NC}"
+kubectl get nodes
+echo -e "${GREEN}Node check completed.${NC}"
+echo ""
+
+echo -e "${BLUE}All steps completed successfully!${NC}"

Labs/00-VerifyCluster/verify-cluster.sh

@@ -47,7 +47,7 @@ const
 
 require("http")
   .createServer((request, response) => {
-    response.write(`Language: ${language}`);
+    response.write(`Language: ${language}\n`);
     response.write(`Token   : ${token}\n`);
     response.end(`\n`);
   })
@@ -139,7 +139,7 @@ Successfully tagged nirgeier/k8s-secrets-sample:latest
 # replace the name if you used your own name
 # and check the response from the server.
 # It should print out the variables which were defined inside the DockerFile 
-$ docker run -d -p5000:5000 nirgeier/k8s-secrets-sample --name server
+$ docker run -d -p5000:5000 --name server nirgeier/k8s-secrets-sample 
 
 # Get the response from the container 
 # The port is the one which we exposed inside the DockerFile
@@ -373,7 +373,7 @@ service/codewizard-secrets unchanged
 - To update existing secrets or ConfigMap:
 
 ```
-$ kubectl create secret generic token -n codewizard --from-literal=Token=Token3 -o yaml --dry-run=client | kubectl replace -f -
+$ kubectl create secret generic token -n codewizard --from-literal=TOKEN=Token3 -o yaml --dry-run=client | kubectl replace -f -
 secret/token replaced
 ```