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  • Iustin Pop's avatar
    Allocator framework, 1st part: allocator input generation · d61df03e
    Iustin Pop authored
    In preparation for the introduction of automatic instance allocator,
    this patch adds an allocator simulation opcode, that based on the input
    parameters, will return either the input message to the allocator
    (implemented) or the result of the allocator run (not yet implemented).
    This allows algorithm tests against simulated allocations and the
    current cluster state.
    The patch adds the following:
      - a function that generates the generic cluster information for the
      - a function that generates the 'new instance' information
      - a function that generates the 'replace_secondary' information
    These three functions will be used by the allocator framework later to
    generate the actual information for the external algorithms. Currently
    we just return the json-serialized text.
    Reviewed-by: imsnah