a DNS-1123 label must consist of lower case alphanumeric characters or ‘-‘, and must start and end w
Posted mry6
tags:
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a DNS-1123 label must consist of lower case alphanumeric characters or '-', and must start and end with an alphanumeric character
报错信息
[root@master]# kubectl create -f zuizhong.yaml
Error from server (Invalid): error when creating "zuizhong.yaml": Deployment.apps "mry" is invalid: spec.template.spec.containers[2].name: Invalid value: "mry_backend": a DNS-1123 label must consist of lower case alphanumeric characters or '-', and must start and end with an alphanumeric character (e.g. 'my-name', or '123-abc', regex used for validation is '[a-z0-9]([-a-z0-9]*[a-z0-9])?')
Error from server (Invalid): error when creating "zuizhong.yaml": Service "mry-service" is invalid: spec.ports[2].name: Invalid value: "mry_backend": a DNS-1123 label must consist of lower case alphanumeric characters or '-', and must start and end with an alphanumeric character (e.g. 'my-name', or '123-abc', regex used for validation is '[a-z0-9]([-a-z0-9]*[a-z0-9])?')
错误原因
kubernetes中对资源命名时注意不能使用下划线
样例内容
错误样例:
apiVersion: apps/v1
kind: Deployment
metadata:
name: mry
labels:
mrn: mry
spec:
replicas: 1
selector:
matchLabels:
mrn: mry
template:
metadata:
labels:
mrn: mry
spec:
containers:
- name: mry-redis
image: redis:5.0.12
imagePullPolicy: IfNotPresent
ports:
- containerPort: 6379
- name: mry-nginx
image: nginx:1.17.1
imagePullPolicy: IfNotPresent
ports:
- containerPort: 80
- name: mry_backend
image: tomcat:8
imagePullPolicy: IfNotPresent
ports:
- containerPort: 8080
volumeMounts:
- mountPath: /home/mrn/volumes/mry
name: mry
volumes:
- name: mry
hostPath:
path: /home/mrn/volumes/mry
---
apiVersion: v1
kind: Service
metadata:
name: mry-service
spec:
ports:
- port: 6379
targetPort: 6379
protocol: TCP
name: mry-redis
nodePort: 30010
- port: 80
targetPort: 80
protocol: TCP
name: mry-nginx
nodePort: 30011
- port: 8080
targetPort: 8080
protocol: TCP
name: mry_backend
nodePort: 30012
selector:
mrn: mry
type: NodePort
修改成中划线:
apiVersion: apps/v1
kind: Deployment
metadata:
name: mry
labels:
mrn: mry
spec:
replicas: 1
selector:
matchLabels:
mrn: mry
template:
metadata:
labels:
mrn: mry
spec:
containers:
- name: mry-redis
image: redis:5.0.12
imagePullPolicy: IfNotPresent
ports:
- containerPort: 6379
- name: mry-nginx
image: nginx:1.17.1
imagePullPolicy: IfNotPresent
ports:
- containerPort: 80
- name: mry-backend
image: tomcat:8
imagePullPolicy: IfNotPresent
ports:
- containerPort: 8080
volumeMounts:
- mountPath: /home/mrn/volumes/mry
name: mry
volumes:
- name: mry
hostPath:
path: /home/mrn/volumes/mry
---
apiVersion: v1
kind: Service
metadata:
name: mry-service
spec:
ports:
- port: 6379
targetPort: 6379
protocol: TCP
name: mry-redis
nodePort: 30010
- port: 80
targetPort: 80
protocol: TCP
name: mry-nginx
nodePort: 30011
- port: 8080
targetPort: 8080
protocol: TCP
name: mry-backend
nodePort: 30012
selector:
mrn: mry
type: NodePort
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