GSP-318: Deploy to Kubernetes in Google Cloud

https://www.youtube.com/watch?v=KyaGr7atDko ## Task - 1 : Create a Docker image and store the Dockerfile ``` gcloud auth list gsutil cat gs://cloud-training/gsp318/marking/setup_marking_v2.sh | bash gcloud source repos clone valkyrie-app 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 : . cd .. cd marking ./step1_v2.sh ``` ## Task - 2 : Test the created Docker image ``` cd .. cd valkyrie-app docker run -p 8080:8080 : & cd .. cd marking ./step2_v2.sh ``` ## Task - 3 : Push the Docker image in the Google Container Repository ``` cd .. cd valkyrie-app docker tag : gcr.io/$GOOGLE_CLOUD_PROJECT/: docker push gcr.io/$GOOGLE_CLOUD_PROJECT/: ``` ## Task - 4 : Create and expose a deployment in Kubernetes ``` sed -i s#IMAGE_HERE#gcr.io/$GOOGLE_CLOUD_PROJECT/:#g k8s/deployment.yaml gcloud container clusters get-credentials valkyrie-dev --zone us-east1-d kubectl create -f k8s/deployment.yaml kubectl create -f k8s/service.yaml ``` ## Task - 5 : Update the deployment with a new version of valkyrie-app ``` git merge origin/kurt-dev kubectl edit deployment valkyrie-dev ### change replicas from 1 to ### change to in two places docker build -t gcr.io/$GOOGLE_CLOUD_PROJECT/: . docker push gcr.io/$GOOGLE_CLOUD_PROJECT/: ``` ## Task - 6 : Create a pipeline in Jenkins to deploy your app ``` docker ps docker kill export POD_NAME=$(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 $(kubectl get secret cd-jenkins -o jsonpath="{.data.jenkins-admin-password}" | base64 --decode);echo ``` * **Open Jenkins Web View -> Preview on port 8080** ``` Username : admin Password : {Code output from previous command} ``` ``` Go through the following: -> Manage Jenkins -> Manage Credentials -> Jenkins -> Global credentials (unrestricted) -> Add credentials -> Kind: Google Service Account from metadata -> OK -> Jenkins -> New Item -> Name : valkyrie-app -> Pipeline -> Pipeline script from SCM -> Set SCM to git -> OK -> Pipeline -> Script: Pipeline script from SCM -> SCM: Git -> Repository URL: {find it using command: gcloud source repos list} -> Credentials: {Project id} -> Apply -> Save ``` ``` sed -i "s/green/orange/g" source/html.go sed -i "s/YOUR_PROJECT/$GOOGLE_CLOUD_PROJECT/g" Jenkinsfile git config --global user.email "[email protected]" // Email git config --global user.name "student..." // Username git add . git commit -m "built pipeline init" git push ```