mirror of https://github.com/k3s-io/k3s
42 lines
1.1 KiB
Go
42 lines
1.1 KiB
Go
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/*
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Copyright 2014 Google Inc. 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 constraint
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import (
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"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
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)
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// PortsConflict returns true iff two containers attempt to expose
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// the same host port.
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func PortsConflict(manifests []api.ContainerManifest) bool {
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hostPorts := map[int]struct{}{}
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for _, manifest := range manifests {
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for _, container := range manifest.Containers {
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for _, port := range container.Ports {
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if port.HostPort == 0 {
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continue
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}
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if _, exists := hostPorts[port.HostPort]; exists {
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return true
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}
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hostPorts[port.HostPort] = struct{}{}
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}
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}
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}
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return false
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}
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