如何将 secret 挂载到 kubernetes StatefulSet
How to mount a secret to kubernetes StatefulSet
所以,查看 Kubernetes API 文档:https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.17/#statefulsetspec-v1-apps 看来我确实可以拥有一个卷,因为它使用 podspec 并且 podspec 确实有一个卷字段,所以我可以列出秘密,然后像在部署或任何其他 pod 中一样安装它。
问题是 kubernetes 似乎认为卷实际上不在 StatefulSet 的 podspec 中?这是正确的吗?如果这是真的,我如何将秘密安装到我的状态集。
错误:error validating "mysql-stateful-set.yaml": error validating data: ValidationError(StatefulSet.spec.template.spec.containers[0]): unknown field "volumes" in io.k8s.api.core.v1.Container; if you choose to ignore these errors, turn validation off with --validate=false
状态集:
apiVersion: v1
kind: Service
metadata:
name: mysql
labels:
app: mysql
spec:
ports:
- port: 3306
name: database
selector:
app: mysql
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
name: mysql
spec:
selector:
matchLabels:
app: mysql # has to match .spec.template.metadata.labels
serviceName: "mysql"
replicas: 1
template:
metadata:
labels:
app: mysql
spec:
terminationGracePeriodSeconds: 60
containers:
- name: mysql
image: mysql
ports:
- containerPort: 3306
name: database
volumeMounts:
- name: data
mountPath: /var/lib/mysql
- name: mysql
mountPath: /run/secrets/mysql
env:
- name: MYSQL_ROOT_PASSWORD_FILE
value: /run/secrets/mysql/root-pass
volumes:
- name: mysql
secret:
secretName: mysql
items:
- key: root-pass
path: root-pass
mode: 511
volumeClaimTemplates:
- metadata:
name: data
spec:
accessModes: [ "ReadWriteOnce" ]
storageClassName: do-block-storage
resources:
requests:
storage: 10Gi```
体积字段应位于模板规范内,而不是容器内(如您的模板中所做的那样)。请参阅此以获得确切的结构 (https://godoc.org/k8s.io/api/apps/v1#StatefulSetSpec),转到 PodTemplateSpec,您将找到 volumes
字段。
以下模板应该适合您:
apiVersion: v1
kind: Service
metadata:
name: mysql
labels:
app: mysql
spec:
ports:
- port: 3306
name: database
selector:
app: mysql
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
name: mysql
spec:
selector:
matchLabels:
app: mysql # has to match .spec.template.metadata.labels
serviceName: "mysql"
replicas: 1
template:
metadata:
labels:
app: mysql
spec:
terminationGracePeriodSeconds: 60
containers:
- name: mysql
image: mysql
ports:
- containerPort: 3306
name: database
volumeMounts:
- name: data
mountPath: /var/lib/mysql
- name: mysql
mountPath: /run/secrets/mysql
env:
- name: MYSQL_ROOT_PASSWORD_FILE
value: /run/secrets/mysql/root-pass
volumes:
- name: mysql
secret:
secretName: mysql
items:
- key: root-pass
path: root-pass
mode: 511
volumeClaimTemplates:
- metadata:
name: data
spec:
accessModes: [ "ReadWriteOnce" ]
storageClassName: do-block-storage
resources:
requests:
storage: 10Gi
所以,查看 Kubernetes API 文档:https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.17/#statefulsetspec-v1-apps 看来我确实可以拥有一个卷,因为它使用 podspec 并且 podspec 确实有一个卷字段,所以我可以列出秘密,然后像在部署或任何其他 pod 中一样安装它。
问题是 kubernetes 似乎认为卷实际上不在 StatefulSet 的 podspec 中?这是正确的吗?如果这是真的,我如何将秘密安装到我的状态集。
错误:error validating "mysql-stateful-set.yaml": error validating data: ValidationError(StatefulSet.spec.template.spec.containers[0]): unknown field "volumes" in io.k8s.api.core.v1.Container; if you choose to ignore these errors, turn validation off with --validate=false
状态集:
apiVersion: v1
kind: Service
metadata:
name: mysql
labels:
app: mysql
spec:
ports:
- port: 3306
name: database
selector:
app: mysql
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
name: mysql
spec:
selector:
matchLabels:
app: mysql # has to match .spec.template.metadata.labels
serviceName: "mysql"
replicas: 1
template:
metadata:
labels:
app: mysql
spec:
terminationGracePeriodSeconds: 60
containers:
- name: mysql
image: mysql
ports:
- containerPort: 3306
name: database
volumeMounts:
- name: data
mountPath: /var/lib/mysql
- name: mysql
mountPath: /run/secrets/mysql
env:
- name: MYSQL_ROOT_PASSWORD_FILE
value: /run/secrets/mysql/root-pass
volumes:
- name: mysql
secret:
secretName: mysql
items:
- key: root-pass
path: root-pass
mode: 511
volumeClaimTemplates:
- metadata:
name: data
spec:
accessModes: [ "ReadWriteOnce" ]
storageClassName: do-block-storage
resources:
requests:
storage: 10Gi```
体积字段应位于模板规范内,而不是容器内(如您的模板中所做的那样)。请参阅此以获得确切的结构 (https://godoc.org/k8s.io/api/apps/v1#StatefulSetSpec),转到 PodTemplateSpec,您将找到 volumes
字段。
以下模板应该适合您:
apiVersion: v1
kind: Service
metadata:
name: mysql
labels:
app: mysql
spec:
ports:
- port: 3306
name: database
selector:
app: mysql
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
name: mysql
spec:
selector:
matchLabels:
app: mysql # has to match .spec.template.metadata.labels
serviceName: "mysql"
replicas: 1
template:
metadata:
labels:
app: mysql
spec:
terminationGracePeriodSeconds: 60
containers:
- name: mysql
image: mysql
ports:
- containerPort: 3306
name: database
volumeMounts:
- name: data
mountPath: /var/lib/mysql
- name: mysql
mountPath: /run/secrets/mysql
env:
- name: MYSQL_ROOT_PASSWORD_FILE
value: /run/secrets/mysql/root-pass
volumes:
- name: mysql
secret:
secretName: mysql
items:
- key: root-pass
path: root-pass
mode: 511
volumeClaimTemplates:
- metadata:
name: data
spec:
accessModes: [ "ReadWriteOnce" ]
storageClassName: do-block-storage
resources:
requests:
storage: 10Gi