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TEP-0090: Matrix [Problem Statement] #532

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Nov 12, 2021
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  1. TEP-0090: Matrix [Problem Statement]

    This change adds the problem statement for Matrix. It scopes the
    problem, describes the use cases, and identifies the goals, the
    requirements for the solution, and related work in other continuous
    delivery systems.
    
    Today, users cannot supply varying `Parameters` to execute a
    `PipelineTask`, that is, fan out a `PipelineTasks`.
    
    To solve this problem, this TEP aims to enable executing the same
    `PipelineTask` with different combinations of `Parameters` specified
    in a `matrix`. `TaskRuns` or `Runs` will be created with variables
    substituted with each combination of the `Parameters` in the `matrix`.
    
    This `matrix` construct will enable users to specify concise but
    powerful `Pipelines`. Moreover, it would improve the composability,
    scalability, flexibility and reusability of *Tekton Pipelines*.
    
    https://github.com/jerop/community/blob/looping/teps/0090-matrix.md
    
    References:
    - [Task Loops Experimental Project][task-loops]
    - Issues:
      - tektoncd/pipeline#2050
      - tektoncd/pipeline#4097
    
    [task-loops]: https://github.com/tektoncd/experimental/tree/main/task-loops
    jerop committed Nov 12, 2021
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