Kubernetes 创建 nfs 存储类
首先你需要在别的终端上创建 nfs 服务并能提供 nfs 访问
Kubernetes 不包含内部 NFS 驱动。你需要使用外部驱动为 NFS 创建 StorageClass。
https://github.com/kubernetes-sigs/nfs-subdir-external-provisioner
安装 nfs 驱动
安装 nfs 驱动
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#安装nfs客户端
apt-get install nfs-common
git clone https://github.com/kubernetes-sigs/nfs-subdir-external-provisioner.git
cd nfs-subdir-external-provisioner/deploy
k3s kubectl create -f rbac.yaml
vim deployment.yaml
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- 编辑 deployment.yaml
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apiVersion: apps/v1
kind: Deployment
metadata:
name: nfs-client-provisioner
labels:
app: nfs-client-provisioner
# replace with namespace where provisioner is deployed
namespace: default
spec:
replicas: 1
strategy:
type: Recreate
selector:
matchLabels:
app: nfs-client-provisioner
template:
metadata:
labels:
app: nfs-client-provisioner
spec:
serviceAccountName: nfs-client-provisioner
containers:
- name: nfs-client-provisioner
image: k8s.gcr.io/sig-storage/nfs-subdir-external-provisioner:v4.0.2
volumeMounts:
- name: nfs-client-root
mountPath: /persistentvolumes
env:
- name: PROVISIONER_NAME
value: k8s-sigs.io/nfs-subdir-external-provisioner
- name: NFS_SERVER
value: 192.168.99.235
- name: NFS_PATH
value: /volume2/nfs-k8s
volumes:
- name: nfs-client-root
nfs:
server: 192.168.99.235
path: /volume2/nfs-k8s
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- 定义存储类
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k3s kubectl create -f deployment.yaml
k3s kubectl create -f class.yaml
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测试存储是否正常
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k3s kubectl create -f test-claim.yaml -f test-pod.yaml
k3s kubectl delete -f test-claim.yaml -f test-pod.yaml
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创建有状态 pods(mysql)
创建 mysql-deployment.yaml
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apiVersion: v1
kind: Service
metadata:
name: mysql
spec:
ports:
- port: 3306
targetPort: 3306
selector:
app: mysql
clusterIP: None
type: LoadBalancer
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: mysql
spec:
selector:
matchLabels:
app: mysql
strategy:
type: Recreate
template:
metadata:
labels:
app: mysql
spec:
containers:
- image: mysql:5.7
name: mysql
env:
# Use secret in real usage
- name: MYSQL_ROOT_PASSWORD
value: password
ports:
- containerPort: 3306
name: mysql
volumeMounts:
- name: mysql-persistent-storage
mountPath: /var/lib/mysql
volumes:
- name: mysql-persistent-storage
persistentVolumeClaim:
claimName: mysql-pv-claim
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创建 mysql-pv.yaml
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apiVersion: v1
kind: PersistentVolume
metadata:
name: mysql-pv-volume
spec:
storageClassName: managed-nfs-storage
capacity:
storage: 20Gi
accessModes:
- ReadWriteOnce
nfs:
server: 192.168.99.235
path: "/volume2/nfs-k8s"
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: mysql-pv-claim
spec:
storageClassName: managed-nfs-storage
accessModes:
- ReadWriteMany
resources:
requests:
storage: 20Gi
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部署 mysql
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k3s kubectl apply -f mysql-pv.yaml
k3s kubectl apply -f mysql-deployment.yaml
k3s kubectl describe deployment mysql
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