Pipelines End-End Demo

Pre-requisites

1. Openshift Cluster - You can use https://www.redhat.com/sysadmin/codeready-containers
2. Follow Openshift Pipelines Operator installation steps to install Openshift Pipelines

Demo: How easily cronJobs can be converted to Openshift Pipelines

Scenario:

We have the following jobs:

1. cronJob to fetch data from a particular source and store it into a PVC.
2. cronJob to convert fetched data into CSV
3. cronJob to read data from storage

Now let's use the Openshift Pipelines to streamline our cloud workloads.

Note: Demo assumes that he/she has knowledge about Openshift Pipelines and how to execute the resources.

Let's start

• Demo covers
  1. How to re-use the tasks
  2. results
  3. runAfter (To manage task run)
  4. when expression(if/else)
  5. finally(cleanup/removal)
  6. workspaces(storage)
  7. params(how data can be passed from one place and used in multiple places)

1. Create a project

oc new-project demo

2. Create reusable task from hub.tekton.dev

oc create -f https://raw.githubusercontent.com/tektoncd/catalog/main/task/write-file/0.1/write-file.yaml

3. create the pipeline and task that are required for the demo

oc create -f https://raw.githubusercontent.com/savitaashture/unicredit/main/examples/pipeline.yaml

4. create pipelinerun manually

oc create -f https://raw.githubusercontent.com/savitaashture/unicredit/main/examples/pipelinerun.yaml

5. re-create pipelinerun from console with single click

6. Create pipelinerun dynamically based on some events using

   • Pipelines as Code
   • Triggers

The final demo looks like below