/deployment-pipeline

deployment-pipeline

Tekton CI/CD

Installing Node.js

https://nodejs.org

Verify

node -e "console.log('Hello world')"

Installing VS Code and extensions

https://code.visualstudio.com/

Extensions

Kubernetes by Microsoft

YAML by Red Hat

Tekton Pipelines by Red Hat

Installing Docker

https://docker.com/get-started

Verify

docker version

Installing minikube

https://minikube.sigs.k8s.io/docs/start/

Starting minikube

minikube start

Enabling the ingress add-on

minikube addons enable ingress

Installing kubectl

https://kubernetes.io/docs/tasks/tools/install-kubectl/

Verify

kubectl version or kubectl get all

Tekton tooling

Installing Tekton CLI

https://tekton.dev/docs/getting-started/#set-up-the-cli

Installing Tekton on the Kubernetes cluster

kubectl apply --filename https://storage.googleapis.com/tekton-releases/pipeline/latest/release.yaml

Installing the necessary CRDs for Tekton Triggers on the Kubernetes cluster

kubectl apply -f https://storage.googleapis.com/tekton-releases/triggers/latest/release.yaml

kubectl apply -f https://storage.googleapis.com/tekton-releases/triggers/latest/interceptors.yaml

Verify

tkn version

Installing Tekton Dashboard

kubectl apply --filename https://github.com/tektoncd/dashboard/releases/latest/download/tekton-dashboard-release.yaml

kubectl --namespace tekton-pipelines port-forward svc/tekton-dashboard 9097:9097

Go to http://localhost:9097

Creating a service account

kubectl apply -f https://raw.githubusercontent.com/tektoncd/triggers/main/examples/rbac.yaml

Creating a cluster role binding

kubectl create clusterrolebinding serviceaccounts-cluster-admin --clusterrole=cluster-admin --group=system:serviceaccounts

Clone the source code

git clone https://github.com/genekuo/tekton-book-app.git

Test the source code

cd tekton-book-app

npm install

npm start

curl localhost:3000

curl localhost:3000/add/12/10

curl localhost:3000/substract/10/2

Ctrl+C

npm run lint

npm run test

Creating the container

docker build -t <YOUR_USERNAME>/tekton-lab-app .

docker login docker.io

docker push <YOUR_USERNAME>/tekton-lab-app

Deploying the application

kubectl apply -f deploy.yaml

Verify the deployment

kubectl get deploy

curl $(minikube ip)

Updating the application

Change the response to the "/" route in server.js to return a different response.

git commit -am "Change a server response to one"

git push origin main

npm run test

npm run lint

docker build –t <YOUR_USERNAME>/tekton-lab-app .

docker push <YOUR_USERNAME>/tekton-lab-app

Rollout the deployment

kubectl rollout restart deployment/tekton-deployment

Verify the updates

curl $(minikube ip)

Installing tools from the task catalog

https://hub.tekton.dev

git-clone

kubectl apply -f https://raw.githubusercontent.com/tektoncd/catalog/main/task/git-clone/0.5/git-clone.yaml

npm

kubectl apply -f https://raw.githubusercontent.com/tektoncd/catalog/main/task/npm/0.1/npm.yaml

kubernetes-actions

kubectl apply -f https://raw.githubusercontent.com/tektoncd/catalog/main/task/kubernetes-actions/0.2/kubernetes-actions.yaml

Creating build-push task

cd deployment-pipeline

`kubectl apply -f task.yaml

Creating the pipeline

kubectl apply -f pipeline.yaml

Creating the event-binding, commit-tt and listener

Creating a secret key, which will be shared between your trigger and GitHub

export TEKTON_SECRET=$(head -c 24 /dev/random | base64)

kubectl create secret generic git-secret --from-literal=secretToken=$TEKTON_SECRET

echo $TEKTON_SECRET

Edit <YOUR_USERNAME> and <YOUR_PASSWORD> in the trigger.yaml

kubectl apply -f trigger.yaml

Creating a public route to your local Kubernetes cluster

Installing Ngrok

https://ngrok.com/download

Creating a public route

kubectl port-forward svc/el-listener 8080

ngrok http 8080

Adding a new webhook to your repository (tekton-lab-app) in the GitHub

Payload URL: This is your public ngrok URL

Content Type: This should be changed to application/json

Secret: This is the secret you've stored in the $TEKTON_SECRET environment variables

Verifying CI/CD pipeline

Make a change to source code in tekton-lab-app

Change the response to the "/" route in server.js to return a different response.

npm run test

npm run lint

git commit -am "Change a server response to two"

git push origin main

tkn pipelineruns ls

curl $(minikube ip)

Clean up

minikube stop

minikube delete