Docker Swarm - 删除 worker 节点

1、前提：集群环境已经运行

在manager节点上执行:

# 查看节点信息
>>> docker node ls

ID                            HOSTNAME                  STATUS    AVAILABILITY   MANAGER STATUS   ENGINE VERSION
jr06s8pbrclkrxt7jpy7wae8t *   iZ2ze78653g20ksebnllhpZ   Ready     Active         Leader           20.10.16
4v3rwq67jrf6skao18zvjhlr0     rasp03                    Ready     Active                          20.10.17


# 排空
>>> docker node update --availability drain 4v3rwq67jrf6skao18zvjhlr0
4v3rwq67jrf6skao18zvjhlr0

# 重启 节点
>>> docker node update --availability active 4v3rwq67jrf6skao18zvjhlr0


>>> docker node ls
ID                            HOSTNAME                  STATUS    AVAILABILITY   MANAGER STATUS   ENGINE VERSION
jr06s8pbrclkrxt7jpy7wae8t *   iZ2ze78653g20ksebnllhpZ   Ready     Active         Leader           20.10.16
4v3rwq67jrf6skao18zvjhlr0     rasp03                    Ready     Drain                           20.10.17

在worker节点上执行:

# 主动申请离开集群
>>> docker swarm leave
Node left the swarm.

在manager节点上执行:

>>> docker node ls

ID                            HOSTNAME                  STATUS    AVAILABILITY   MANAGER STATUS   ENGINE VERSION
jr06s8pbrclkrxt7jpy7wae8t *   iZ2ze78653g20ksebnllhpZ   Ready     Active         Leader           20.10.16
4v3rwq67jrf6skao18zvjhlr0     rasp03                    Down      Drain                           20.10.17


# 删除节点
>>> docker node rm 4v3rwq67jrf6skao18zvjhlr0
4v3rwq67jrf6skao18zvjhlr0


>>> docker node ls
ID                            HOSTNAME                  STATUS    AVAILABILITY   MANAGER STATUS   ENGINE VERSION
jr06s8pbrclkrxt7jpy7wae8t *   iZ2ze78653g20ksebnllhpZ   Ready     Active         Leader           20.10.16