Lab2.md

Lab 2

Google Cloud Fundamentals : Getting Started with GKE

Objectives

In this Lab, we shall learn how to Perform the following Tasks

1. Provision a Kubernetes cluster using Kubernetes Engine
2. Depl0y and Manage Docker Containers using kubectl

Tasks To Perform

Task 1: Start a Kubernetes Cluster

1. Place your provisioned zone into an environment variable called MY_ZONE as follows:

    `export MY_ZONE=us-central-1a`
   

2. Create a Cluster for Web servers called mywebfrontend with 2 Nodes:

    `kubectl container clusters create mywebfrontend --zone $MY_ZONE --num-node 2`
   

   Give it about 2 minutes to setup

3. Check Installed version of Kubernetes using the command below:

    `kubectl version`
   

Task 2: Run & Deploy a container

1. Using Cloud Shell prompt, launch a Single instance of the nginx container

   kubectl create deploy nginx --image=nginx:1.17.10

2. View the Pods created

   kubectl get pods

3. Allow web access of the nginx pod to internet and set it as Load Balancer

   kubectl expose deployment nginx --port 80 --type LoadBalancer

4. Check Running Services to confirm pod is exposed and set as Load Balancer:

   kubectl get services

   Take note of the External IP address displayed.

5. Type this External IP address in your web browser. You should get the default nginx page.

6. Scale Up the number of pods :

   kubectl scale deployment nginx --replicas 3

7. Confirm the new pods were added:

   kubectl get pods

8. Confirm the IP address has not changed

   kubectl get services

9. Verify the nginx webserver is still running by going ot web browser and refresh the web page from 5 above.

10. Exit the Command Line exit