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Merge pull request #82072 from draveness/feature/use-context-instead-of-channel

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feat(scheduler): use context in scheduler package
This commit is contained in:
Kubernetes Prow Robot
2019-10-17 01:46:39 -07:00
committed by GitHub
parent 6a5f0e6eda 47a6c5b693
commit 3719fcdffa
42 changed files with 426 additions and 352 deletions
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51
pkg/scheduler/framework/v1alpha1/interface.go
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@@ -19,6 +19,7 @@ limitations under the License.
package v1alpha1
import (
"context"
"errors"
"math"
"time"
@@ -206,10 +207,10 @@ type QueueSortPlugin interface {
type PreFilterExtensions interface {
// AddPod is called by the framework while trying to evaluate the impact
// of adding podToAdd to the node while scheduling podToSchedule.
AddPod(state *CycleState, podToSchedule *v1.Pod, podToAdd *v1.Pod, nodeInfo *schedulernodeinfo.NodeInfo) *Status
AddPod(ctx context.Context, state *CycleState, podToSchedule *v1.Pod, podToAdd *v1.Pod, nodeInfo *schedulernodeinfo.NodeInfo) *Status
// RemovePod is called by the framework while trying to evaluate the impact
// of removing podToRemove from the node while scheduling podToSchedule.
RemovePod(state *CycleState, podToSchedule *v1.Pod, podToRemove *v1.Pod, nodeInfo *schedulernodeinfo.NodeInfo) *Status
RemovePod(ctx context.Context, state *CycleState, podToSchedule *v1.Pod, podToRemove *v1.Pod, nodeInfo *schedulernodeinfo.NodeInfo) *Status
}
// PreFilterPlugin is an interface that must be implemented by "prefilter" plugins.
@@ -218,7 +219,7 @@ type PreFilterPlugin interface {
Plugin
// PreFilter is called at the beginning of the scheduling cycle. All PreFilter
// plugins must return success or the pod will be rejected.
PreFilter(state *CycleState, p *v1.Pod) *Status
PreFilter(ctx context.Context, state *CycleState, p *v1.Pod) *Status
// PreFilterExtensions returns a PreFilterExtensions interface if the plugin implements one,
// or nil if it does not. A Pre-filter plugin can provide extensions to incrementally
// modify its pre-processed info. The framework guarantees that the extensions
@@ -249,7 +250,7 @@ type FilterPlugin interface {
// For example, during preemption, we may pass a copy of the original
// nodeInfo object that has some pods removed from it to evaluate the
// possibility of preempting them to schedule the target pod.
Filter(state *CycleState, pod *v1.Pod, nodeInfo *schedulernodeinfo.NodeInfo) *Status
Filter(ctx context.Context, state *CycleState, pod *v1.Pod, nodeInfo *schedulernodeinfo.NodeInfo) *Status
}
// PostFilterPlugin is an interface for Post-filter plugin. Post-filter is an
@@ -262,7 +263,7 @@ type PostFilterPlugin interface {
// passed the filtering phase. All postfilter plugins must return success or
// the pod will be rejected. The filteredNodesStatuses is the set of filtered nodes
// and their filter status.
PostFilter(state *CycleState, pod *v1.Pod, nodes []*v1.Node, filteredNodesStatuses NodeToStatusMap) *Status
PostFilter(ctx context.Context, state *CycleState, pod *v1.Pod, nodes []*v1.Node, filteredNodesStatuses NodeToStatusMap) *Status
}
// ScoreExtensions is an interface for Score extended functionality.
@@ -270,7 +271,7 @@ type ScoreExtensions interface {
// NormalizeScore is called for all node scores produced by the same plugin's "Score"
// method. A successful run of NormalizeScore will update the scores list and return
// a success status.
NormalizeScore(state *CycleState, p *v1.Pod, scores NodeScoreList) *Status
NormalizeScore(ctx context.Context, state *CycleState, p *v1.Pod, scores NodeScoreList) *Status
}
// ScorePlugin is an interface that must be implemented by "score" plugins to rank
@@ -280,7 +281,7 @@ type ScorePlugin interface {
// Score is called on each filtered node. It must return success and an integer
// indicating the rank of the node. All scoring plugins must return success or
// the pod will be rejected.
Score(state *CycleState, p *v1.Pod, nodeName string) (int64, *Status)
Score(ctx context.Context, state *CycleState, p *v1.Pod, nodeName string) (int64, *Status)
// ScoreExtensions returns a ScoreExtensions interface if it implements one, or nil if does not.
ScoreExtensions() ScoreExtensions
@@ -296,7 +297,7 @@ type ReservePlugin interface {
Plugin
// Reserve is called by the scheduling framework when the scheduler cache is
// updated.
Reserve(state *CycleState, p *v1.Pod, nodeName string) *Status
Reserve(ctx context.Context, state *CycleState, p *v1.Pod, nodeName string) *Status
}
// PreBindPlugin is an interface that must be implemented by "prebind" plugins.
@@ -305,7 +306,7 @@ type PreBindPlugin interface {
Plugin
// PreBind is called before binding a pod. All prebind plugins must return
// success or the pod will be rejected and won't be sent for binding.
PreBind(state *CycleState, p *v1.Pod, nodeName string) *Status
PreBind(ctx context.Context, state *CycleState, p *v1.Pod, nodeName string) *Status
}
// PostBindPlugin is an interface that must be implemented by "postbind" plugins.
@@ -316,7 +317,7 @@ type PostBindPlugin interface {
// informational. A common application of this extension point is for cleaning
// up. If a plugin needs to clean-up its state after a pod is scheduled and
// bound, PostBind is the extension point that it should register.
PostBind(state *CycleState, p *v1.Pod, nodeName string)
PostBind(ctx context.Context, state *CycleState, p *v1.Pod, nodeName string)
}
// UnreservePlugin is an interface for Unreserve plugins. This is an informational
@@ -327,7 +328,7 @@ type UnreservePlugin interface {
Plugin
// Unreserve is called by the scheduling framework when a reserved pod was
// rejected in a later phase.
Unreserve(state *CycleState, p *v1.Pod, nodeName string)
Unreserve(ctx context.Context, state *CycleState, p *v1.Pod, nodeName string)
}
// PermitPlugin is an interface that must be implemented by "permit" plugins.
@@ -340,7 +341,7 @@ type PermitPlugin interface {
// The pod will also be rejected if the wait timeout or the pod is rejected while
// waiting. Note that if the plugin returns "wait", the framework will wait only
// after running the remaining plugins given that no other plugin rejects the pod.
Permit(state *CycleState, p *v1.Pod, nodeName string) (*Status, time.Duration)
Permit(ctx context.Context, state *CycleState, p *v1.Pod, nodeName string) (*Status, time.Duration)
}
// BindPlugin is an interface that must be implemented by "bind" plugins. Bind
@@ -353,7 +354,7 @@ type BindPlugin interface {
// remaining bind plugins are skipped. When a bind plugin does not handle a pod,
// it must return Skip in its Status code. If a bind plugin returns an Error, the
// pod is rejected and will not be bound.
Bind(state *CycleState, p *v1.Pod, nodeName string) *Status
Bind(ctx context.Context, state *CycleState, p *v1.Pod, nodeName string) *Status
}
// Framework manages the set of plugins in use by the scheduling framework.
@@ -367,7 +368,7 @@ type Framework interface {
// *Status and its code is set to non-success if any of the plugins returns
// anything but Success. If a non-success status is returned, then the scheduling
// cycle is aborted.
RunPreFilterPlugins(state *CycleState, pod *v1.Pod) *Status
RunPreFilterPlugins(ctx context.Context, state *CycleState, pod *v1.Pod) *Status
// RunFilterPlugins runs the set of configured filter plugins for pod on
// the given node. It returns directly if any of the filter plugins
@@ -378,46 +379,46 @@ type Framework interface {
// pass a copy of the original nodeInfo object that has some pods
// removed from it to evaluate the possibility of preempting them to
// schedule the target pod.
RunFilterPlugins(state *CycleState, pod *v1.Pod, nodeInfo *schedulernodeinfo.NodeInfo) *Status
RunFilterPlugins(ctx context.Context, state *CycleState, pod *v1.Pod, nodeInfo *schedulernodeinfo.NodeInfo) *Status
// RunPreFilterExtensionAddPod calls the AddPod interface for the set of configured
// PreFilter plugins. It returns directly if any of the plugins return any
// status other than Success.
RunPreFilterExtensionAddPod(state *CycleState, podToSchedule *v1.Pod, podToAdd *v1.Pod, nodeInfo *schedulernodeinfo.NodeInfo) *Status
RunPreFilterExtensionAddPod(ctx context.Context, state *CycleState, podToSchedule *v1.Pod, podToAdd *v1.Pod, nodeInfo *schedulernodeinfo.NodeInfo) *Status
// RunPreFilterExtensionRemovePod calls the RemovePod interface for the set of configured
// PreFilter plugins. It returns directly if any of the plugins return any
// status other than Success.
RunPreFilterExtensionRemovePod(state *CycleState, podToSchedule *v1.Pod, podToAdd *v1.Pod, nodeInfo *schedulernodeinfo.NodeInfo) *Status
RunPreFilterExtensionRemovePod(ctx context.Context, state *CycleState, podToSchedule *v1.Pod, podToAdd *v1.Pod, nodeInfo *schedulernodeinfo.NodeInfo) *Status
// RunPostFilterPlugins runs the set of configured post-filter plugins. If any
// of these plugins returns any status other than "Success", the given node is
// rejected. The filteredNodeStatuses is the set of filtered nodes and their statuses.
RunPostFilterPlugins(state *CycleState, pod *v1.Pod, nodes []*v1.Node, filteredNodesStatuses NodeToStatusMap) *Status
RunPostFilterPlugins(ctx context.Context, state *CycleState, pod *v1.Pod, nodes []*v1.Node, filteredNodesStatuses NodeToStatusMap) *Status
// RunScorePlugins runs the set of configured scoring plugins. It returns a map that
// stores for each scoring plugin name the corresponding NodeScoreList(s).
// It also returns *Status, which is set to non-success if any of the plugins returns
// a non-success status.
RunScorePlugins(state *CycleState, pod *v1.Pod, nodes []*v1.Node) (PluginToNodeScores, *Status)
RunScorePlugins(ctx context.Context, state *CycleState, pod *v1.Pod, nodes []*v1.Node) (PluginToNodeScores, *Status)
// RunPreBindPlugins runs the set of configured prebind plugins. It returns
// *Status and its code is set to non-success if any of the plugins returns
// anything but Success. If the Status code is "Unschedulable", it is
// considered as a scheduling check failure, otherwise, it is considered as an
// internal error. In either case the pod is not going to be bound.
RunPreBindPlugins(state *CycleState, pod *v1.Pod, nodeName string) *Status
RunPreBindPlugins(ctx context.Context, state *CycleState, pod *v1.Pod, nodeName string) *Status
// RunPostBindPlugins runs the set of configured postbind plugins.
RunPostBindPlugins(state *CycleState, pod *v1.Pod, nodeName string)
RunPostBindPlugins(ctx context.Context, state *CycleState, pod *v1.Pod, nodeName string)
// RunReservePlugins runs the set of configured reserve plugins. If any of these
// plugins returns an error, it does not continue running the remaining ones and
// returns the error. In such case, pod will not be scheduled.
RunReservePlugins(state *CycleState, pod *v1.Pod, nodeName string) *Status
RunReservePlugins(ctx context.Context, state *CycleState, pod *v1.Pod, nodeName string) *Status
// RunUnreservePlugins runs the set of configured unreserve plugins.
RunUnreservePlugins(state *CycleState, pod *v1.Pod, nodeName string)
RunUnreservePlugins(ctx context.Context, state *CycleState, pod *v1.Pod, nodeName string)
// RunPermitPlugins runs the set of configured permit plugins. If any of these
// plugins returns a status other than "Success" or "Wait", it does not continue
@@ -426,14 +427,14 @@ type Framework interface {
// returned by the plugin, if the time expires, then it will return an error.
// Note that if multiple plugins asked to wait, then we wait for the minimum
// timeout duration.
RunPermitPlugins(state *CycleState, pod *v1.Pod, nodeName string) *Status
RunPermitPlugins(ctx context.Context, state *CycleState, pod *v1.Pod, nodeName string) *Status
// RunBindPlugins runs the set of configured bind plugins. A bind plugin may choose
// whether or not to handle the given Pod. If a bind plugin chooses to skip the
// binding, it should return code=4("skip") status. Otherwise, it should return "Error"
// or "Success". If none of the plugins handled binding, RunBindPlugins returns
// code=4("skip") status.
RunBindPlugins(state *CycleState, pod *v1.Pod, nodeName string) *Status
RunBindPlugins(ctx context.Context, state *CycleState, pod *v1.Pod, nodeName string) *Status
// HasFilterPlugins return true if at least one filter plugin is defined
HasFilterPlugins() bool