Tekton Hello World Demo

The demo sources used as part of Red Hat DevNationLive Webinar Plumbing Kubernetes builds | deploy with Tekton.

Pre-req

• A Kubernetes cluster or OpenShift with Tekton installed
• If minikube have the internal container registry deployed; check Registry Helpers
• Download and add Tekton CLI to the path

[IMPORTANT]

If you are tying to use local container registry for image build and push then its recommended to use minikube version v1.1.1 because of an existing container registry issue kubernetes/minikube#4604

Demo Sources

The application uses a simple Java HelloWorld application built using Quarkus, https://github.com/kameshsampath/pipeline-helloworld

git clone https://https://github.com/kameshsampath/pipeline-helloworld && \
cd pipeline-helloworld

Running Demo

• Create Service Account called pipeline and make it as cluster-admin

Kubernetes

kubectl create sa pipeline && \
kubectl create clusterrolebinding pipeline-cluster-admin-binding --clusterrole=cluster-admin --serviceaccount=default:pipeline

OpenShift

oc new-project tutorial && \
oc create serviceaccount pipeline && \
oc adm policy add-scc-to-user privileged -z pipeline && \
oc adm policy add-role-to-user edit -z pipeline

• Create Pipeline Resources

   kubectl create -f build-resources.yaml

• Create Pipeline Task

   kubectl create -f app-build-task.yaml

• Run the Pipeline Task

   kubectl create -f app-build-task-run.yaml

• Create the Pipeline

   kubectl create -f app-deploy.yaml

• Run the Pipeline

   tkn pipeline start   --resource="app-source=git-source" --resource="app-image=helloworld-image" --serviceaccount='pipeline' app-deploy