Qwiklabs Implement DevOps in Google Cloud Challenge Lab

Janvi Shree Shrimal

3 min readMay 6, 2021

Step by Step guide to solve this challenge. Can also refer my video for the same : https://youtu.be/MLgc-EkO8Ik

Qwiklabs Profile : https://run.qwiklabs.com/public_profiles/5c709a0a-adf5-4f7d-9e9d-9f71d6c49c6e

Task 1: Configure a Jenkins pipeline for continuous deployment to Kubernetes Engine

Cloud Shell
-> gcloud config set compute/zone us-east1-b

-> git clone https://source.developers.google.com/p/$DEVSHELL_PROJECT_ID/r/sample-app

-> gcloud container clusters get-credentials jenkins-cd

-> kubectl create clusterrolebinding cluster-admin-binding — clusterrole=cluster-admin — user=$(gcloud config get-value account)

-> helm repo add stable https://kubernetes-charts.storage.googleapis.com/
-> helm repo update
-> helm install cd stable/jenkins

-> export POD_NAME=$(kubectl get pods — namespace default -l “app.kubernetes.io/component=jenkins-master” -l “app.kubernetes.io/instance=cd” -o jsonpath=”{.items[0].metadata.name}”)

-> kubectl port-forward $POD_NAME 8080:8080 >> /dev/null &

-> printf $(kubectl get secret cd-jenkins -o jsonpath=”{.data.jenkins-admin-password}” | base64 — decode);echo

You will get password
Go to web preview -> Preview on port 8080

Username : admin
Password : [copied from previous command]

Cloud Shell
-> cd sample-app/
-> kubectl create ns production
-> kubectl apply -f k8s/production -n production
-> kubectl apply -f k8s/canary -n production
-> kubectl apply -f k8s/services -n production
-> kubectl get svc
-> kubectl get services gceme-frontend -n production

Go to Jekins Dashboard
Left Menu->Manage Jenkins->Manage credentials
Click on Jenkins -> Click on Global credentials(unrestricted)
Left Menu->Add credentials
Kind : Google Service Account from metadata
Project Name : auto generated
OK

Jenkins Home page
New Item
Name : sample-app
Multibranch Pipeline
OK

Branch Sources : git
Project Repository :https://source.developers.google.com/p/[PROJECT_ID]/r/sample-app
“Note : replace [PROJECT_ID] your lab project ID”
Credentials : Select your project ID

In Scan Multibranch Pipeline Triggers
Check Periodically if not otherwise run
interval : 1 minute

Save

git init
git config credential.helper gcloud.sh
git remote add origin https://source.developers.google.com/p/$DEVSHELL_PROJECT_ID/r/sample-app
git config — global user.email “”
git config — global user.name “”
git add .
git commit -m “initial commit”
git push origin master

Wait until full process is complete
To check click on Status on left menu

Check my Progress

Task 2: Push an update to the application to a development branch

Cloud Shell
-> git checkout -b new-feature
-> vi html.go

->i
change both lines that contains the word blue to orange
->ESC key
->:wq

-> vi main.go
-> i
change the version number to “2.0.0”
->ESC key
->:wq

-> git add Jenkinsfile html.go main.go
-> git commit -m “Version 2.0.0”
-> git push origin new-feature

Go to Jenkins Dashboard -> Click on sample-app ->Notice new item is being created

-> kubectl proxy &

-> Starting to serve on 127.0.0.1:8001 [auto-generated command]

-> curl http://localhost:8001/api/v1/namespaces/new-feature/services/gceme-frontend:80/proxy/version

-> kubectl get service gceme-frontend -n production
Copy External IP and paste in new tab

-> git checkout -b canary
-> git push origin canary
-> export FRONTEND_SERVICE_IP=$(kubectl get -o \
>jsonpath=”{.status.loadBalancer.ingress[0].ip}” — namespace=production services gceme-frontend)
-> git checkout master
-> git push origin master

-> export FRONTEND_SERVICE_IP=$(kubectl get -o \
>jsonpath=”{.status.loadBalancer.ingress[0].ip}” — namespace=production services gceme-frontend)
-> while true; do curl http://$FRONTEND_SERVICE_IP/version; sleep 1; done

Check my Progress “Note : After completion of all tasks , Task 2 will be completed”

Task 3:Push a Canary deployment to the production namespace

Cloud Shell
“Note : You are Performing below commands in above task as well, if task 3 is not complete then run the following commands otherwise not needed” -> git checkout master
-> git merge canary
-> git push origin master

Check my Progress