k8s 测试环境搭建（k3s）
环境说明
系统 centos 7.9，基于 k3s + docker，并安装 nfs-provisioner 提供 nfs 的 StorageClass 支持
安装 docker
curl https://releases.rancher.com/install-docker/19.03.sh | sh
安装 k3s
curl -sfL http://rancher-mirror.cnrancher.com/k3s/k3s-install.sh | INSTALL_K3S_MIRROR=cn sh -s - --docker
- 版本 v1.20.7+k3s1
安装 nfs server
https://www.cnblogs.com/leffss/p/14826992.html
安装 nfs-provisioner
yaml 文件：
apiVersion: v1
kind: ServiceAccount
metadata:
name: nfs-client-provisioner
namespace: kube-system
---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
name: nfs-client-provisioner-runner
rules:
- apiGroups: [""]
resources: ["persistentvolumes"]
verbs: ["get", "list", "watch", "create", "delete"]
- apiGroups: [""]
resources: ["persistentvolumeclaims"]
verbs: ["get", "list", "watch", "update"]
- apiGroups: ["storage.k8s.io"]
resources: ["storageclasses"]
verbs: ["get", "list", "watch"]
- apiGroups: [""]
resources: ["events"]
verbs: ["list", "watch", "create", "update", "patch"]
- apiGroups: [""]
resources: ["endpoints"]
verbs: ["get", "list", "watch", "create", "update", "patch"]
---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
name: run-nfs-client-provisioner
subjects:
- kind: ServiceAccount
name: nfs-client-provisioner
namespace: kube-system
roleRef:
kind: ClusterRole
name: nfs-client-provisioner-runner
apiGroup: rbac.authorization.k8s.io
---
kind: Deployment
apiVersion: apps/v1
metadata:
name: nfs-provisioner-01
namespace: kube-system
spec:
replicas: 1
strategy:
type: Recreate
selector:
matchLabels:
app: nfs-provisioner-01
template:
metadata:
labels:
app: nfs-provisioner-01
spec:
serviceAccountName: nfs-client-provisioner
containers:
- name: nfs-client-provisioner
image: jmgao1983/nfs-client-provisioner:latest
imagePullPolicy: IfNotPresent
volumeMounts:
- name: nfs-client-root
mountPath: /persistentvolumes
env:
- name: PROVISIONER_NAME
value: nfs-provisioner-01 # 此处供应者名字供storageclass调用
- name: NFS_SERVER
value: 192.168.223.111 # 填入NFS的地址
- name: NFS_PATH
value: /nfs # 填入NFS挂载的目录
volumes:
- name: nfs-client-root
nfs:
server: 192.168.223.111 # 填入NFS的地址
path: /nfs # 填入NFS挂载的目录
---
apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
name: nfs-leffss
provisioner: nfs-provisioner-01
# Supported policies: Delete、 Retain ， default is Delete
# reclaimPolicy: Retain
- StorageClass 名称：nfs-leffss