我正在尝试修补kubernetes部署对象的活动性和就绪性探针参数。下面是我的patch.yml
。
---
spec:
template:
spec:
containers:
-
livenessProbe:
initialDelaySeconds: 280
name: notification-service
readinessProbe:
initialDelaySeconds: 220
请求:
kubectl -n my-namespace --kubeconfig=my_config --context=dev patch deployment notification-service --patch "$(cat patch.yml)"
响应:
kubectl : error: unable to parse "spec: template: spec: containers: - name: notification-service
readinessProbe: initialDelaySeconds: 220 livenessProbe: initialDelaySeconds: 280": yaml: mapping values are not allowed in this
context
At line:1 char:1
+ kubectl -n my-namespace --kubeconfig=my_config --context=dev patch ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (error: unable t...in this context:String) [], RemoteException
+ FullyQualifiedErrorId : NativeCommandError
编辑:
以下是kubectl version
命令的输出。
Client Version: version.Info{Major:"1", Minor:"10", GitVersion:"v1.10.0", GitCommit:"fc32d2f3698e36b93322a3465f63a14e
9f0eaead", GitTreeState:"clean", BuildDate:"2018-03-26T16:55:54Z", GoVersion:"go1.9.3", Compiler:"gc", Platform:"wind
ows/386"}
Server Version: version.Info{Major:"1", Minor:"13", GitVersion:"v1.13.4", GitCommit:"c27b913fddd1a6c480c229191a087698
aa92f0b1", GitTreeState:"clean", BuildDate:"2019-02-28T13:30:26Z", GoVersion:"go1.11.5", Compiler:"gc", Platform:"lin
ux/amd64"}
This是引发此错误的行。为了验证这一点,我尝试创建一个示例go程序。下面是代码片段。令我惊讶的是,下面的代码能够处理yaml文件。
package main
import (
"fmt"
"io/ioutil"
//"sigs.k8s.io/yaml" // Part of latest master k8s master vendor folder
yaml2 "github.com/ghodss/yaml" // Part of release 1.10 k8s vendor folder
)
func check(e error) {
if e != nil {
panic(e)
}
}
func main(){
dat, err := ioutil.ReadFile("D:\\EclipseIDEJavaEEDevelopers\\Workspace\\patch.yaml")
check(err)
patch:=string(dat)
patchBytes, err1 := yaml2.YAMLToJSON([]byte(patch))
if err != nil {
fmt.Errorf("unable to parse %q: %v", dat, err1)
}else{
fmt.Println("json conversion completed ",string(patchBytes))
}
}
输出:
json conversion completed {"spec":{"template":{"spec":{"containers":[{"livenessProbe":{"initialDelaySeconds":280},"name":"notification-service","readinessProbe":{"initialDelaySeconds":220}}]}}}}
答案 0 :(得分:1)
问题出在powershell
和命令替换周围的双引号引起了。如果我们在powershell中在命令替换处添加双引号,则会从yml中删除新行,因此kubectl无法将其转换为json。
Same确实可以使用bash。由于我使用的是Powershell,因此它对我不起作用。正确的命令如下所示。
kubectl -n my-namespace --kubeconfig=my_config --context=dev patch deployment notification-service --patch $(cat patch.yml)
注意:yml仍然存在一些问题。因此,当我说它奏效时,我的意思是当前问题已解决。从kubernetes的角度来看,yml存在许多问题。
答案 1 :(得分:0)
如果使用gc分隔符,则可以在pwsh中执行此操作:
kubectl patch deployment my-deployment --patch "$(gc my-patch.yaml -Delimiter ?)" -n my-namespace