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constraint.go
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constraint.go
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/*
Copyright 2014 Google Inc. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package constraint
import (
"fmt"
"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
)
// Allowed returns true if pods is a collection of bound pods
// which can run without conflict on a single minion.
func Allowed(pods []api.BoundPod) []error {
errors := []error{}
for _, port := range hostPortsConflict(pods) {
errors = append(errors, fmt.Errorf("host port %v is already in use", port))
}
return errors
}