docker-machine 无法连接

[ruandao]

mac 上创建远程 docker-machine

创建

docker-machine create --driver generic --generic-ip-address=192.168.1.221 --generic-ssh-key ~/.ssh/id_rsa --generic-ssh-user yan centos


Running pre-create checks...
Creating machine...
(centos) Importing SSH key...
Waiting for machine to be running, this may take a few minutes...
Detecting operating system of created instance...
Waiting for SSH to be available...
Detecting the provisioner...
Provisioning with centos...
Copying certs to the local machine directory...
Copying certs to the remote machine...
Setting Docker configuration on the remote daemon...
Checking connection to Docker...
Error creating machine: Error checking the host: Error checking and/or regenerating the certs: There was an error validating certificates for host "192.168.1.221:2376": dial tcp 192.168.1.221:2376: connect: connection refused
You can attempt to regenerate them using 'docker-machine regenerate-certs [name]'.
Be advised that this will trigger a Docker daemon restart which might stop running containers.



$ docker-machine regenerate-certs centos
Regenerate TLS machine certs?  Warning: this is irreversible. (y/n): y
Regenerating TLS certificates
Waiting for SSH to be available...
Detecting the provisioner...
Copying certs to the local machine directory...
Copying certs to the remote machine...
Setting Docker configuration on the remote daemon...

显示状态

docker-machine ls
centos     -        generic      Running   tcp://192.168.1.221:2376            Unknown    Unable to query docker version: Cannot connect to the docker engine endpoint

局域网的 docker:

[yan@centos ~]$ docker version
Client: Docker Engine - Community
Version:           19.03.6
API version:       1.40
Go version:        go1.12.16
Git commit:        369ce74a3c
Built:             Thu Feb 13 01:29:29 2020
OS/Arch:           linux/amd64
Experimental:      false

Server: Docker Engine - Community
 Engine:
  Version:          19.03.6
  API version:      1.40 (minimum version 1.12)
  Go version:       go1.12.16
  Git commit:       369ce74a3c
  Built:            Thu Feb 13 01:28:07 2020
  OS/Arch:          linux/amd64
  Experimental:     false
 containerd:
  Version:          1.2.10
  GitCommit:        b34a5c8af56e510852c35414db4c1f4fa6172339
 runc:
  Version:          1.0.0-rc8+dev
  GitCommit:        3e425f80a8c931f88e6d94a8c831b9d5aa481657
 docker-init:
  Version:          0.18.0
  GitCommit:        fec3683

家里的局域网的一台 centos 然后我手头上的是 mac air （因为容量性能不够，所以准备把一些 docker 的相关实验放 centos 上） 目前创建 docker-machine 出问题了 有点不知道如何下手

谢谢

问题解决了

firewalld 阻止了 2376 端口的连接

打开了就 ok 了，不过在考虑要不要把 firewalld 关闭掉

https://www.digitalocean.com/community/tutorials/how-to-configure-the-linux-firewall-for-docker-swarm-on-centos-7