
Before you begin
- Labs create a Google Cloud project and resources for a fixed time
- Labs have a time limit and no pause feature. If you end the lab, you'll have to restart from the beginning.
- On the top left of your screen, click Start lab to begin
Start a GKE cluster
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Run and deploy a container
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In this lab, you create a Google Kubernetes Engine cluster containing several containers, each containing a web server. You place a load balancer in front of the cluster and view its contents.
In this lab, you learn how to perform the following tasks:
kubectl
.For each lab, you get a new Google Cloud project and set of resources for a fixed time at no cost.
Sign in to Qwiklabs using an incognito window.
Note the lab's access time (for example, 1:15:00
), and make sure you can finish within that time.
There is no pause feature. You can restart if needed, but you have to start at the beginning.
When ready, click Start lab.
Note your lab credentials (Username and Password). You will use them to sign in to the Google Cloud Console.
Click Open Google Console.
Click Use another account and copy/paste credentials for this lab into the prompts.
If you use other credentials, you'll receive errors or incur charges.
Accept the terms and skip the recovery resource page.
Make a note of the name of your Google Cloud project. This value is shown in the top bar of the Google Cloud Console. It will be of the form qwiklabs-gcp-
followed by hexadecimal numbers.
In the Google Cloud Console, on the Navigation menu (), click APIs & Services.
Scroll down in the list of enabled APIs, and confirm that both of these APIs are enabled:
If either API is missing, click Enable APIs and Services at the top. Search for the above APIs by name and enable each for your current project. (You noted the name of your GCP project above.)
In Google Cloud console, on the top right toolbar, click the Activate Cloud Shell button.
Click Continue.
At the Cloud Shell prompt, type the following command to export the environment variable called MY_ZONE
.
Start a Kubernetes cluster managed by Kubernetes Engine. Name the cluster webfrontend and configure it to run 2 nodes:
It takes several minutes to create a cluster as Kubernetes Engine provisions virtual machines for you.
After the cluster is created, check your installed version of Kubernetes using the kubectl version
command:
The gcloud container clusters create
command automatically authenticated kubectl
for you.
View your running nodes in the GCP Console. On the Navigation menu (), click Compute Engine > VM Instances.
Your Kubernetes cluster is now ready for use.
Click Check my progress to verify the objective.
From your Cloud Shell prompt, launch a single instance of the nginx container. (Nginx is a popular web server.)
In Kubernetes, all containers run in pods. This use of the kubectl create
command caused Kubernetes to create a deployment consisting of a single pod containing the nginx container. A Kubernetes deployment keeps a given number of pods up and running even in the event of failures among the nodes on which they run. In this command, you launched the default number of pods, which is 1.
View the pod running the nginx container:
Expose the nginx container to the Internet:
Kubernetes created a service and an external load balancer with a public IP address attached to it. The IP address remains the same for the life of the service. Any network traffic to that public IP address is routed to pods behind the service: in this case, the nginx pod.
View the new service:
You can use the displayed external IP address to test and contact the nginx container remotely.
It may take a few seconds before the External-IP field is populated for your service. This is normal. Just re-run the kubectl get services
command every few seconds until the field is populated.
Open a new web browser tab and paste your cluster's external IP address into the address bar. The default home page of the Nginx browser is displayed.
Scale up the number of pods running on your service:
Scaling up a deployment is useful when you want to increase available resources for an application that is becoming more popular.
Confirm that Kubernetes has updated the number of pods:
Confirm that your external IP address has not changed:
Return to the web browser tab in which you viewed your cluster's external IP address. Refresh the page to confirm that the nginx web server is still responding.
Click Check my progress to verify the objective.
In this lab, you configured a Kubernetes cluster in Kubernetes Engine. You populated the cluster with several pods containing an application, exposed the application, and scaled the application.
When you have completed your lab, click End Lab. Google Cloud Skills Boost removes the resources you’ve used and cleans the account for you.
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