K3s 嵌入式DB的高可用
节点
| ip | hostname | type |
|---|---|---|
| 192.168.163.141 | k8s-m1 | master |
| 192.168.163.142 | k8s-m2 | master |
| 192.168.163.143 | k8s-m3 | master |
| 192.168.163.144 | k8s-w1 | work |
| 192.168.163.145 | k8s-w2 | work |
| 192.168.163.146 | k8s-w3 | work |
host 文件配置
192.168.163.141 k8s-m1
192.168.163.142 k8s-m2
192.168.163.143 k8s-m3
192.168.163.144 k8s-w1
192.168.163.145 k8s-w2
192.168.163.146 k8s-w3
配置docker.io 镜像
文件 /etc/rancher/k3s/registries.yaml
mirrors:
"docker.io":
endpoint:
- "https://uvslpyyz.mirror.aliyuncs.com"
- "https://registry-1.docker.io"
执行命令
k8s-m1
curl -sfL http://rancher-mirror.cnrancher.com/k3s/k3s-install.sh | INSTALL_K3S_MIRROR=cn K3S_TOKEN=K105ebf0aa70eb6ff378a5c4ca500424580df871e1d9d2c7d623c1393935ac98a0a::server:b7b35eb534a6a7f07b9368dd84ad1447 INSTALL_K3S_EXEC="server --cluster-init" sh -
节点更新ca证书
没有更新ca证书报错
starting kubernetes: preparing server: token CA hash does not match the Cluster CA certificate hash: xxxxxxxxw != xxxxxxxx
curl -k https://192.168.163.141:6443/cacerts -o /usr/local/share/ca-certificates/k3s.crt
update-ca-certificates
k8s-m2 k8s-m3
curl -sfL http://rancher-mirror.cnrancher.com/k3s/k3s-install.sh | INSTALL_K3S_MIRROR=cn K3S_TOKEN=K105ebf0aa70eb6ff378a5c4ca500424580df871e1d9d2c7d623c1393935ac98a0a::server:b7b35eb534a6a7f07b9368dd84ad1447 K3S_URL=https://192.168.163.141:6443 INSTALL_K3S_EXEC="server" sh -
k8s-w1 k8s-w2 k8s-w3
curl -sfL http://rancher-mirror.cnrancher.com/k3s/k3s-install.sh | INSTALL_K3S_MIRROR=cn K3S_TOKEN=K105ebf0aa70eb6ff378a5c4ca500424580df871e1d9d2c7d623c1393935ac98a0a::server:b7b35eb534a6a7f07b9368dd84ad1447 K3S_URL=https://192.168.163.141:6443 sh -
