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api: enable selecting subset of services using rendezvous hashing #12862

Merged
merged 2 commits into from
Jun 30, 2022
Merged

api: enable selecting subset of services using rendezvous hashing #12862

merged 2 commits into from
Jun 30, 2022

Commits on Jun 25, 2022

  1. api: enable selecting subset of services using rendezvous hashing 

    This PR adds the 'choose' query parameter to the '/v1/service/<service>' endpoint.

The value of 'choose' is in the form '<number>|<key>', number is the number
of desired services and key is a value unique but consistent to the requester
(e.g. allocID).

Folks aren't really expected to use this API directly, but rather through consul-template
which will soon be getting a new helper function making use of this query parameter.

Example,

curl 'localhost:4646/v1/service/redis?choose=2|abc123'

Note: consul-templte v0.29.1 includes the necessary nomadServices functionality.
    @shoenig
    shoenig committed Jun 25, 2022
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Commits on Jun 30, 2022

  1. cl: fixup changelog comment 

    Co-authored-by: James Rasell <jrasell@users.noreply.github.com>
    @shoenig @jrasell
    shoenig and jrasell authored Jun 30, 2022
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