dlorenc

FileSet Pipeline Resource

Today in Tekton, tasks that consume files must operate on a typed Input resource, usually of Type Git or Storage. This leads to a few problems:

Tasks must choose which to support, when both should be equivalent
Pipelines of Tasks that operate on specific files must invent out-of-band mechanisms to specify which files to operate on

Ideally, Tasks that operate on Files would have a more generic type of resource that can be populated from various sources, and Tasks should not need to communicate about file paths or names out-of-band.

This proposal details a FileSet Pipeline Resource designed to achieve these goals.

	apiVersion: tekton.dev/v1alpha1
	kind: PipelineResourceType
	metadata:
	name: git
	spec:
	implementations:
	- modes: [ro]
	params:
	- name: url
	type: string

	apiVersion: tekton.dev/v1alpha1
	kind: Task
	metadata:
	name: kustomize-build
	spec:
	resources:
	- name: workspace
	type: fileset
	mode: ro
	- name: inflated

	steps:
	- name: 'gcr.io/cloud-builders/go'
	args: ['install', '.']
	resources:
	- slack
	channel: foo
	secret: $FOO
	- email

	apiVersion: tekton.dev/v1alpha1
	kind: TriggerBinding
	metadata:
	name: ci-pipeline-binding
	spec:
	params:
	- name: gitrevision
	value: $(body.pull_request.head.sha)
	- name: gitrepositoryurl
	value: $(body.pull_request.head.repo.clone_url)

	apiVersion: tekton.dev/v1alpha1
	kind: TriggerBinding
	metadata:
	name: review-pipeline-binding
	spec:
	params:
	- name: gitrevision
	value: $(body.pull_request.head.sha)
	- name: gitrepositoryurl
	value: $(body.pull_request.head.repo.clone_url)

	apiVersion: tekton.dev/v1alpha1
	kind: TriggerTemplate
	metadata:
	name: review-pipeline-template
	spec:
	params:
	- name: gitrevision
	description: The git revision
	default: master
	- name: gitrepositoryurl

	apiVersion: tekton.dev/v1alpha1
	kind: EventListener
	metadata:
	name: listener-interceptor
	spec:
	serviceType: LoadBalancer
	triggers:
	- name: pr-trig
	interceptor:
	bindings: