TEP-0147: introducing matrix.strategy

[pritidesai]

Changes

Introducing matrix.strategy to allow pipeline authors to specify explicit combinations dynamically.

apiVersion: tekton.dev/v1
kind: Pipeline
spec:
  tasks:
    - name: clone
      taskRef:
        name: clone
    - name: build
       matrix:
         strategy: $(tasks.setup.results.matrix) # <JSON payload of a list of params and values>

where $(tasks.setup.results.matrix) could be set to:

{"include":  [{"IMAGE": "image", "DOCKERFILE": "path/to/Dockerfile"}]}

or

{"include":  [{"IMAGE": "image-1", "DOCKERFILE": "path/to/Dockerfile1"},
                    {"IMAGE": "image-2", "DOCKERFILE": "path/to/Dockerfile2"},
                    {"IMAGE": "image-3", "DOCKERFILE": "path/to/Dockerfile3"}]}

#7170
tektoncd/community#1081

/kind feature

Submitter Checklist

As the author of this PR, please check off the items in this checklist:

• Has Docs if any changes are user facing, including updates to minimum requirements e.g. Kubernetes version bumps
• Has Tests included if any functionality added or changed
• Follows the commit message standard
• Meets the Tekton contributor standards (including functionality, content, code)
• Has a kind label. You can add one by adding a comment on this PR that contains /kind <type>. Valid types are bug, cleanup, design, documentation, feature, flake, misc, question, tep
• Release notes block below has been updated with any user facing changes (API changes, bug fixes, changes requiring upgrade notices or deprecation warnings). See some examples of good release notes.
• Release notes contains the string "action required" if the change requires additional action from users switching to the new release

Release Notes

NONE

[tekton-robot]

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[tekton-robot]

The following is the coverage report on the affected files.
Say /test pull-tekton-pipeline-go-coverage-df to re-run this coverage report

File	Old Coverage	New Coverage	Delta
pkg/apis/pipeline/v1/matrix_types.go	100.0%	92.6%	-7.4
pkg/apis/pipeline/v1/pipeline_validation.go	99.1%	99.2%	0.0
pkg/apis/pipeline/v1beta1/matrix_types.go	100.0%	94.3%	-5.7
pkg/apis/pipeline/v1beta1/pipeline_validation.go	98.8%	98.8%	0.0

[tekton-robot]

The following is the coverage report on the affected files.
Say /test pull-tekton-pipeline-go-coverage-df to re-run this coverage report

File	Old Coverage	New Coverage	Delta
pkg/apis/pipeline/v1/matrix_types.go	100.0%	92.6%	-7.4
pkg/apis/pipeline/v1/pipeline_validation.go	99.2%	99.2%	0.0
pkg/apis/pipeline/v1beta1/matrix_types.go	100.0%	94.3%	-5.7
pkg/apis/pipeline/v1beta1/pipeline_validation.go	98.9%	98.9%	0.0

[afrittoli]

@pritidesai are you still working on TEP-0147?

[tekton-robot]

The following is the coverage report on the affected files.
Say /test pull-tekton-pipeline-go-coverage-df to re-run this coverage report

File	Old Coverage	New Coverage	Delta
pkg/apis/pipeline/v1/matrix_types.go	100.0%	92.6%	-7.4
pkg/apis/pipeline/v1/pipeline_validation.go	99.2%	99.2%	0.0
pkg/apis/pipeline/v1beta1/matrix_types.go	100.0%	94.3%	-5.7
pkg/apis/pipeline/v1beta1/pipeline_validation.go	99.0%	99.0%	0.0