基于外部数据库Mysql实现K3s高可用

最新推荐文章于 2025-03-14 06:45:38 发布

rakey520

最新推荐文章于 2025-03-14 06:45:38 发布

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文章标签：数据库 mysql k8s

本文链接：https://blog.youkuaiyun.com/qq_24574189/article/details/132081056

版权

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一、master1

curl -sfL https://rancher-mirror.rancher.cn/k3s/k3s-install.sh | INSTALL_K3S_MIRROR=cn sh -s - server --datastore-endpoint="mysql://XX:XX@tcp(XX:3306)/test"

kubectl get nodes
kubectl get cs
kubectl get pods -n kube-system
 
cat /var/lib/rancher/k3s/server/token

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二、master2

curl -sfL https://rancher-mirror.rancher.cn/k3s/k3s-install.sh | INSTALL_K3S_MIRROR=cn sh -s - server --token=K10cc5b552d688b4df40f472e383e47cf6c285f17320f6908c33afd050abf3821b8::server:aee46125c69ae1ec038064ed36bae392  --datastore-endpoint="mysql://XX:XX@tcp(XX:3306)/test"

kubectl get nodes
kubectl get cs
kubectl get pods -n kube-system

三、验证

master1:

kubectl get nodes
kubectl get cs
kubectl get pods -n kube-system

init 0

master2:

kubectl get nodes
kubectl get cs
kubectl get pods -n kube-system

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创建deployment

apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-deployment
  labels:
    app: nginx
spec:
  replicas: 2
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: nginx
        ports:
        - containerPort: 80
---
apiVersion: v1
kind: Service
metadata:
  name: my-service
spec:
  selector:
    app: nginx
  ports:
    - protocol: TCP
      port: 80
      targetPort: 80
  type: NodePort

kubectl apply -f mytestdeploy.yaml
kubectl get pods
kubectl get deploy
kubectl get svc

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四、指定K3s版本

指定安装K3S版本

要指定 K3s 版本，使用 INSTALL_K3S_VERSION 环境变量：

export INSTALL_K3S_VERSION=v1.24.9+k3s1

curl –sfL https://rancher-mirror.oss-cn-beijing.aliyuncs.com/k3s/k3s-install.sh | INSTALL_K3S_MIRROR=cn sh -s - --system-default-registry "registry.cn-hangzhou.aliyuncs.com"  --token=mytoken  --datastore-endpoint="mysql://k3s:ytxx@2023@tcp(10.1.9.73:3306)/K3S"

curl -sfL https://rancher-mirror.oss-cn-beijing.aliyuncs.com/k3s/k3s-install.sh | INSTALL_K3S_MIRROR=cn \

K3S_KUBECONFIG_OUTPUT=/root/.kube/config INSTALL_K3S_VERSION=v1.20.15+k3s1 sh -s - server --token=mytoken --datastore-endpoint="mysql://k3s:ytxx@2023@tcp(10.88.181.29:3306)/K3S"