Qwiklabs Deploy to Kuberenetes in Google Cloud Challenge Lab

Janvi Shree Shrimal

3 min readMay 1, 2021

Step by Step Guide to solve this challenge. Can refer my YouTube video far the same : https://youtu.be/SmbBhmOeh8c

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

Task 1: Create a Docker image and store the Dockerfile

Open Cloud Shell
-> source <(gsutil cat gs://cloud-training/gsp318/marking/setup_marking.sh)

->export PROJECT=[GCP Project ID]

->gcloud source repos clone valkyrie-app — project=$PROJECT

->ls

->cd valkyrie-app/

-> cat > Dockerfile <<EOF

FROM golang:1.10
WORKDIR /go/src/app
COPY source .
RUN go install -v
ENTRYPOINT [“app”,”-single=true”,”-port=8080"]
EOF

->docker build -t valkyrie-app:v0.0.1 .

->docker images

->ls

->cd ..

->ls

->./step1.sh
Check your progress

Task 2: Test the created Docker image

->cd valkyrie-app/

->ls

->docker run -p 8080:8080 valkyrie-app:v0.0.1 &

Click for Web preview -> Preview on port 8080
New terminal (+)
->ls

->cd marking/

->./step2.sh
Check your progress

Task 3: Push the Docker image in the Container Repository

In the first terminal
->ls

->docker tag valkyrie-app:v0.0.1 gcr.io/$PROJECT/valkyrie-app:v0.0.1

->docker images

->docker push gcr.io/$PROJECT/valkyrie-app:v0.0.1

Check your progress

Task 4: Create and expose a deployment in Kubernetes

->ls

->cd k8s/

->ls

->cat deployment.yaml

->ls

->cat service.yaml

->ls

->gcloud container clusters get-credentials valkyrie-dev — zone us-east1-d

(You will get zone from Navigation menu->Kubernetes Engine ->Clusters)

->sed -i s#IMAGE_HERE#gcr.io/$PROJECT/valkyrie-app:v0.0.1#g k8s/deployment.yaml

->ls

->vi deployment.yaml

->i
change value of image in containers
image: gcr.io/[GCP Project ID]/valkyrie-app:v0.0.1

Esc key

:wq

->gcloud container clusters get-credentials valkyrie-dev — zone us-east1-d

->kubectl create -f ./deployment.yaml

->kubectl create -f ./service.yaml

Check your progress

Task 5: Update the deployment with a new version of valkyrie-app

->cd ..

->ls

->git merge origin/kurt-dev

->kubectl edit deployment valkyrie-dev

change value of image in containers image: gcr.io/[GCP Project ID]/valkyrie-app:v0.0.2

spec: replicas: 3 . . . replicas: 3 (3rd last line) Increase the replicas from 1 to 3

Esc key

:wq

->docker build -t valkyrie-app:v.0.0.2 .

->docker tag valkyrie-app:v.0.0.2 gcr.io/$PROJECT/valkyrie-app:v0.0.2

->docker images

->docker push gcr.io/$PROJECT/valkyrie-app:v0.0.2

Check your progress

Task 6: Create a pipeline in Jenkins to deploy your app

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

->docker ps

->docker kill [container id]

You would have got container id by running “docker ps” command

->docker ps

->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 &

Web Preview
Sign In to Jenkins
user id = admin
password = generated by above command

On the Left menu
Manage Jenkins
->Manage Credentials
->Stores scoped to Jenkins->Domains
->Click global
->Add credentials
->Kind : Google Service Account from metadata
->OK
->Jenkins Home Page
->New Item
->Item name : valkyrie-app
->Pipeline->OK
->Definition : Pipeline script from SCM
SCM->Git
Repository URL: (Go to Cloud Shell run this command ->gcloud source repos list)
Credentials : select you Project ID
Save

Cloud Shell
->sed -i “s/green/orange/g” source/html.go
->sed -i “s/YOUR_PROJECT/$PROJECT/g” Jenkinsfile
->git config — global user.email “[Username]”
->git config — global user.name “[GCP Project ID]”
->git add .
->git commit -m “green to orange”
->git push origin master

Go to Jenkins Page
On the left menu -> Build Now

Check my progress