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scheduler: merge Reserve and Unreserve plugins

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Previously, separate interfaces were defined for Reserve and Unreserve
plugins. However, in nearly all cases, a plugin that allocates a
resource using Reserve will likely want to register itself for Unreserve
as well in order to free the allocated resource at the end of a failed
scheduling/binding cycle. Having separate plugins for Reserve and
Unreserve also adds unnecessary config toil. To that end, this patch
aims to merge the two plugins into a single interface called a
ReservePlugin that requires implementing both the Reserve and Unreserve
methods.
This commit is contained in:
Adhityaa Chandrasekar
2020-06-15 21:52:54 +00:00
parent 8adcd7978e
commit ec83143342
23 changed files with 243 additions and 288 deletions
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16
cmd/kube-scheduler/app/server_test.go
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@@ -198,10 +198,9 @@ profiles:
{Name: "TaintToleration", Weight: 1},
{Name: "DefaultPodTopologySpread", Weight: 1},
},
"BindPlugin": {{Name: "DefaultBinder"}},
"ReservePlugin": {{Name: "VolumeBinding"}},
"UnreservePlugin": {{Name: "VolumeBinding"}},
"PreBindPlugin": {{Name: "VolumeBinding"}},
"BindPlugin": {{Name: "DefaultBinder"}},
"ReservePlugin": {{Name: "VolumeBinding"}},
"PreBindPlugin": {{Name: "VolumeBinding"}},
}
testcases := []struct {
@@ -234,7 +233,6 @@ profiles:
"QueueSortPlugin": {{Name: "PrioritySort"}},
"ScorePlugin": {{Name: "InterPodAffinity", Weight: 1}, {Name: "TaintToleration", Weight: 1}},
"ReservePlugin": {{Name: "VolumeBinding"}},
"UnreservePlugin": {{Name: "VolumeBinding"}},
"PreBindPlugin": {{Name: "VolumeBinding"}},
},
},
@@ -251,7 +249,6 @@ profiles:
"BindPlugin": {{Name: "DefaultBinder"}},
"QueueSortPlugin": {{Name: "PrioritySort"}},
"ReservePlugin": {{Name: "VolumeBinding"}},
"UnreservePlugin": {{Name: "VolumeBinding"}},
"PreBindPlugin": {{Name: "VolumeBinding"}},
},
},
@@ -331,10 +328,9 @@ profiles:
{Name: "TaintToleration", Weight: 1},
{Name: "DefaultPodTopologySpread", Weight: 1},
},
"BindPlugin": {{Name: "DefaultBinder"}},
"ReservePlugin": {{Name: "VolumeBinding"}},
"UnreservePlugin": {{Name: "VolumeBinding"}},
"PreBindPlugin": {{Name: "VolumeBinding"}},
"BindPlugin": {{Name: "DefaultBinder"}},
"ReservePlugin": {{Name: "VolumeBinding"}},
"PreBindPlugin": {{Name: "VolumeBinding"}},
},
},
},