在安装openstack，执行自己写的自动化安装脚本后，在docker.service里配置了etcd后，发现docker起不来
[root@os19 docker]# yum list installed | grep docker
Repository epel is listed more than once in the configuration
containerd.io.x86_64 1.6.6-3.1.el8 @docker-nightly
docker-buildx-plugin.x86_64 0.8.2-1.el8 @docker-test
docker-ce.x86_64 3:22.06.0~beta.0-1.el8 @docker-test
docker-ce-cli.x86_64 1:22.06.0~beta.0-1.el8 @docker-test
docker-ce-rootless-extras.x86_64 22.06.0~beta.0-1.el8 @docker-test
docker-compose-plugin.x86_64 2.6.0-3.el8 @docker-stable
docker-scan-plugin.x86_64 0.17.0-3.el8 @docker-stable
查看系统日志后发现新版本不支持etcd这个启动参数了
Jun 8 19:07:05 os11 dockerd[195152]: Host-discovery and overlay networks with external k/v stores are deprecated. The 'cluster-advertise', 'cluster-store', and 'cluster-store-opt' options have been removed
Jun 8 19:07:05 os11 systemd[1]: docker.service: Main process exited, code=exited, status=1/FAILURE
Jun 8 19:07:05 os11 systemd[1]: docker.service: Failed with result 'exit-code'.
Jun 8 19:07:05 os11 systemd[1]: Failed to start Docker Application Container Engine.
Jun 8 19:07:07 os11 systemd[1]: docker.service: Service RestartSec=2s expired, scheduling restart.
查看正常机器的版本
[root@os55 ~]# yum list installed | grep docker
containerd.io.x86_64 1.4.3-3.1.el8 @docker-nightly
docker-ce.x86_64 3:20.10.3-3.el8 @docker-stable
docker-ce-cli.x86_64 1:20.10.3-3.el8 @docker-stable
docker-ce-rootless-extras.x86_64 20.10.3-3.el8 @docker-stable
[root@os55 ~]# rpm -qa|grep docker
docker-ce-cli-20.10.3-3.el8.x86_64
docker-ce-20.10.3-3.el8.x86_64
docker-ce-rootless-extras-20.10.3-3.el8.x86_64
降低docker版本
rpm -e docker-buildx-plugin-0:0.8.2-1.el8.x86_64 # 要卸载，不然降低失败，会不成功
yum downgrade --setopt=obsoletes=0 -y docker-ce-20.10.3-3.el8.x86_64 docker-ce-cli-20.10.3-3.el8.x86_64 containerd.io-1.4.3-3.1.el8
docker版本降低_向一路北的博客-CSDN博客_docker 降版本
标签：x86,降低,ce,el8,64,版本,docker,20.10 From： https://www.cnblogs.com/sunnybowen/p/16711964.html