代码拉取完成,页面将自动刷新
/*
Copyright 2015 The Kubernetes Authors 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 container
import (
"hash/adler32"
"strings"
"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
"github.com/GoogleCloudPlatform/kubernetes/pkg/util"
"github.com/GoogleCloudPlatform/kubernetes/third_party/golang/expansion"
"github.com/golang/glog"
)
// HandlerRunner runs a lifecycle handler for a container.
type HandlerRunner interface {
Run(containerID string, pod *api.Pod, container *api.Container, handler *api.Handler) error
}
// RunContainerOptionsGenerator generates the options that necessary for
// container runtime to run a container.
type RunContainerOptionsGenerator interface {
GenerateRunContainerOptions(pod *api.Pod, container *api.Container) (*RunContainerOptions, error)
}
// Trims runtime prefix from ID or image name (e.g.: docker://busybox -> busybox).
func TrimRuntimePrefix(fullString string) string {
const prefixSeparator = "://"
idx := strings.Index(fullString, prefixSeparator)
if idx < 0 {
return fullString
}
return fullString[idx+len(prefixSeparator):]
}
// ShouldContainerBeRestarted checks whether a container needs to be restarted.
// TODO(yifan): Think about how to refactor this.
func ShouldContainerBeRestarted(container *api.Container, pod *api.Pod, podStatus *api.PodStatus, readinessManager *ReadinessManager) bool {
podFullName := GetPodFullName(pod)
// Get all dead container status.
var resultStatus []*api.ContainerStatus
for i, containerStatus := range podStatus.ContainerStatuses {
if containerStatus.Name == container.Name && containerStatus.State.Terminated != nil {
resultStatus = append(resultStatus, &podStatus.ContainerStatuses[i])
}
}
// Set dead containers to unready state.
for _, c := range resultStatus {
readinessManager.RemoveReadiness(TrimRuntimePrefix(c.ContainerID))
}
// Check RestartPolicy for dead container.
if len(resultStatus) > 0 {
if pod.Spec.RestartPolicy == api.RestartPolicyNever {
glog.V(4).Infof("Already ran container %q of pod %q, do nothing", container.Name, podFullName)
return false
}
if pod.Spec.RestartPolicy == api.RestartPolicyOnFailure {
// Check the exit code of last run. Note: This assumes the result is sorted
// by the created time in reverse order.
if resultStatus[0].State.Terminated.ExitCode == 0 {
glog.V(4).Infof("Already successfully ran container %q of pod %q, do nothing", container.Name, podFullName)
return false
}
}
}
return true
}
// HashContainer returns the hash of the container. It is used to compare
// the running container with its desired spec.
func HashContainer(container *api.Container) uint64 {
hash := adler32.New()
util.DeepHashObject(hash, *container)
return uint64(hash.Sum32())
}
// EnvVarsToMap constructs a map of environment name to value from a slice
// of env vars.
func EnvVarsToMap(envs []EnvVar) map[string]string {
result := map[string]string{}
for _, env := range envs {
result[env.Name] = env.Value
}
return result
}
func ExpandContainerCommandAndArgs(container *api.Container, envs []EnvVar) (command []string, args []string) {
mapping := expansion.MappingFuncFor(EnvVarsToMap(envs))
if len(container.Command) != 0 {
for _, cmd := range container.Command {
command = append(command, expansion.Expand(cmd, mapping))
}
}
if len(container.Args) != 0 {
for _, arg := range container.Args {
args = append(args, expansion.Expand(arg, mapping))
}
}
return command, args
}
此处可能存在不合适展示的内容,页面不予展示。您可通过相关编辑功能自查并修改。
如您确认内容无涉及 不当用语 / 纯广告导流 / 暴力 / 低俗色情 / 侵权 / 盗版 / 虚假 / 无价值内容或违法国家有关法律法规的内容,可点击提交进行申诉,我们将尽快为您处理。