4d7d7faa81
The docker runtime doesn't tear down networking when GC-ing pods. rkt already does so make docker do it too. To ensure this happens, networking is always torn down for the container even if the container itself is not deleted. This prevents IPAM from leaking when the pod gets killed for some reason outside kubelet (like docker restart) or when pods are killed while kubelet isn't running. Fixes: https://github.com/kubernetes/kubernetes/issues/14940 Related: https://github.com/kubernetes/kubernetes/pull/35572
81 lines
2.4 KiB
Go
81 lines
2.4 KiB
Go
// +build windows
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/*
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Copyright 2015 The Kubernetes Authors.
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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 dockertools
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import (
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"os"
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dockertypes "github.com/docker/engine-api/types"
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dockercontainer "github.com/docker/engine-api/types/container"
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"k8s.io/kubernetes/pkg/api/v1"
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kubecontainer "k8s.io/kubernetes/pkg/kubelet/container"
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)
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// These two functions are OS specific (for now at least)
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func updateHostConfig(hc *dockercontainer.HostConfig, opts *kubecontainer.RunContainerOptions) {
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// There is no /etc/resolv.conf in Windows, DNS and DNSSearch options would have to be passed to Docker runtime instead
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hc.DNS = opts.DNS
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hc.DNSSearch = opts.DNSSearch
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// MemorySwap == -1 is not currently supported in Docker 1.14 on Windows
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// https://github.com/docker/docker/blob/master/daemon/daemon_windows.go#L175
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hc.Resources.MemorySwap = 0
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}
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func DefaultMemorySwap() int64 {
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return 0
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}
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func getContainerIP(container *dockertypes.ContainerJSON) string {
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if container.NetworkSettings != nil {
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for _, network := range container.NetworkSettings.Networks {
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if network.IPAddress != "" {
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return network.IPAddress
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}
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}
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}
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return ""
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}
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func getNetworkingMode() string {
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// Allow override via env variable. Otherwise, use a default "kubenet" network
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netMode := os.Getenv("CONTAINER_NETWORK")
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if netMode == "" {
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netMode = "kubenet"
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}
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return netMode
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}
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// Infrastructure containers are not supported on Windows. For this reason, we
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// make sure to not grab the infra container's IP for the pod.
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func containerProvidesPodIP(containerName string) bool {
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return containerName != PodInfraContainerName
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}
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// All containers in Windows need networking setup/teardown
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func containerIsNetworked(containerName string) bool {
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return true
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}
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// Returns nil as both Seccomp and AppArmor security options are not valid on Windows
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func (dm *DockerManager) getSecurityOpts(pod *v1.Pod, ctrName string) ([]dockerOpt, error) {
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return nil, nil
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}
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