koord-scheduler: reservation support allocateOnce

[saintube]

Signed-off-by: saintube saintube@foxmail.com

Ⅰ. Describe what this PR does

Reservation supports allocateOnce.

Once a pod allocates an available reservation with allocateOnce set to true, the reservation will become Succeeded and no longer allocatable to other owners.

Ⅱ. Does this pull request fix one issue?

fixes #440

Ⅲ. Describe how to verify it

1. Submit an available reservation with allocateOnce set.
2. Submit a pod A that matches the reservation.
3. Watch the reservation is allocated, and its status becomes Succeeded.
4. Submit another pod B that also matches the reservation (if it is available).
5. Check if the reservation is not allocatable to pod B.

Ⅳ. Special notes for reviews

V. Checklist

• I have written necessary docs and comments
• I have added necessary unit tests and integration tests
• All checks passed in make test

[codecov]

Codecov Report

Merging #478 (4bb4e04) into main (2f4355e) will increase coverage by 0.09%.
The diff coverage is 74.54%.

@@            Coverage Diff             @@
##             main     #478      +/-   ##
==========================================
+ Coverage   67.98%   68.07%   +0.09%     
==========================================
  Files         149      149              
  Lines       16251    16298      +47     
==========================================
+ Hits        11048    11095      +47     
- Misses       4381     4384       +3     
+ Partials      822      819       -3     

Flag	Coverage Δ
unittests	68.07% <74.54%> (+0.09%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
pkg/scheduler/eventhandlers/reservation_handler.go	49.77% <0.00%> (-0.23%)	⬇️
pkg/scheduler/plugins/reservation/hook.go	77.30% <0.00%> (ø)
pkg/scheduler/plugins/reservation/rcache.go	83.25% <0.00%> (ø)
pkg/scheduler/plugins/reservation/utils.go	74.58% <79.54%> (+0.61%)	⬆️
...cheduler/plugins/reservation/garbage_collection.go	82.14% <100.00%> (ø)
pkg/scheduler/plugins/reservation/plugin.go	76.85% <100.00%> (+1.25%)	⬆️
pkg/util/httputil/reverseproxy.go	85.10% <0.00%> (+0.79%)	⬆️
pkg/koordlet/runtimehooks/reconciler/reconciler.go	81.05% <0.00%> (+2.10%)	⬆️

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[eahydra]

/lgtm

[jasonliu747]

/lgtm

[eahydra]

/lgtm

[hormes]

/approve

[koordinator-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hormes

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