8c776b7eb9
controller-manager in k8sm: - rename host_port_endpoints flag to host-port-endpoints - host port mapping strategy in scheduler should be driven by host-port-endpoints flag - added host-port-endpoints to known flags - docs: scheduler should also be configured with host-port-endpoints - task recovery: be explicit about excluding mirror pods
84 lines
1.9 KiB
Go
84 lines
1.9 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package podtask
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// rolePredicate is a predicate function on role strings
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type rolePredicate func(string) bool
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// filterRoles filters the given slice of roles and returns a slice of roles
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// matching all given predicates
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func filterRoles(roles []string, ps ...rolePredicate) []string {
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filtered := make([]string, 0, len(roles))
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next:
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for _, r := range roles {
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for _, p := range ps {
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if !p(r) {
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continue next
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}
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}
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filtered = append(filtered, r)
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}
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return filtered
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}
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// seenRole returns a rolePredicate which returns true
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// if a given role has already been seen in previous invocations.
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func seenRole() rolePredicate {
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seen := map[string]struct{}{}
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return func(role string) bool {
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_, ok := seen[role]
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if !ok {
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seen[role] = struct{}{}
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}
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return ok
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}
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}
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// emptyRole returns true if the given role is empty
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func emptyRole(name string) bool {
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return name == ""
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}
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// not returns a rolePredicate which returns the negation
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// of the given predicate
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func not(p rolePredicate) rolePredicate {
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return func(r string) bool {
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return !p(r)
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}
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}
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// inRoles returns a rolePredicate which returns true
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// if the given role is present in the given roles
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func inRoles(roles ...string) rolePredicate {
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roleSet := make(map[string]struct{}, len(roles))
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for _, r := range roles {
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roleSet[r] = struct{}{}
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}
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return func(r string) bool {
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_, ok := roleSet[r]
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return ok
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}
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}
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