Docker从入门到精通(十二)

$ base=https://github.com/docker/machine/releases/download/v0.16.0 &&
  curl -L $base/docker-machine-$(uname -s)-$(uname -m) >/usr/local/bin/docker-machine &&
  chmod +x /usr/local/bin/docker-machine

systemctl stop firewalld

[root@localhost ~]# vim /etc/ssh/sshd_config 
# 将以下取消注释，表示允许root权限登录操作
PermitRootLogin yes 
[root@localhost ~]# systemctl restart sshd
[root@localhost ~]# vim /etc/sudoers
# 将以下内容去掉!符号
Defaults   !visiblepw

$ ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/Users/wangxuan/.ssh/id_rsa):
/Users/wangxuan/.ssh/id_rsa already exists.
Overwrite (y/n)? y
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /Users/wangxuan/.ssh/id_rsa.
Your public key has been saved in /Users/wangxuan/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:ZAskg1cVUWyRvjkQvFt4FS/p28wlzojUnPSm7NhAsHw wangxuan@wangxuandeMacBook-Air.local
The key's randomart image is:
+---[RSA 2048]----+
|   .o.oo+=oo..   |
|  . .+  o + .o   |
|   .  . +* .+ .  |
|       =+++= +   |
|        S=Eo= + .|
|        .++o @ o |
|          o.= *  |
|           =     |
|          . o    |
+----[SHA256]-----+
$ ssh-copy-id -i root@192.168.0.109
$ ssh root@192.168.0.109 (验证是否免密登录)

$ docker-machine create --driver generic --generic-ip-address 192.168.0.109 host1
Running pre-create checks...
Creating machine...
(host1) No SSH key specified. Assuming an existing key at the default location.
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...
Docker is up and running!
To see how to connect your Docker Client to the Docker Engine running on this virtual machine, run: docker-machine env host1

$ docker-machine ls
NAME    ACTIVE   DRIVER    STATE     URL                        SWARM   DOCKER    ERRORS
host1   -        generic   Running   tcp://192.168.0.109:2376           v23.0.3

$ docker-machine env host1 （查看host1需要的环境变量）
export DOCKER_TLS_VERIFY="1"
export DOCKER_HOST="tcp://192.168.0.109:2376"
export DOCKER_CERT_PATH="/Users/wangxuan/.docker/machine/machines/host1"
export DOCKER_MACHINE_NAME="host1"
# Run this command to configure your shell:
# eval $(docker-machine env host1)
$ eval $(docker-machine env vm)
Docker machine "vm" does not exist. Use "docker-machine ls" to list machines. Use "docker-machine create" to add a new one.
$ eval $(docker-machine env host1)（可进入host1环境中）
$ docker run -d --name=nginx nginx (本地拉去镜像)
Unable to find image 'nginx:latest' locally
latest: Pulling from library/nginx
26c5c85e47da: Pull complete
4f3256bdf66b: Pull complete
2019c71d5655: Pull complete
8c767bdbc9ae: Pull complete
78e14bb05fd3: Pull complete
75576236abf5: Pull complete
Digest: sha256:63b44e8ddb83d5dd8020327c1f40436e37a6fffd3ef2498a6204df23be6e7e94
Status: Downloaded newer image for nginx:latest
bf3306bfb9eb4fa3e372bf26802240e07909e6cdef3c2a5c4ad9751a4a0fb0a8
$ docker ps -a (查看镜像)
CONTAINER ID   IMAGE     COMMAND                  CREATED         STATUS         PORTS     NAMES
bf3306bfb9eb   nginx     "/docker-entrypoint.…"   6 seconds ago   Up 5 seconds   80/tcp    nginx

$ docker-machine ssh host1 (登录主机host1)
Last login: Sat Apr 15 16:28:25 2023 from 192.168.0.104
[root@host1 ~]# docker ps -a (发现容器id和mac的容器一样)
CONTAINER ID   IMAGE     COMMAND                   CREATED          STATUS          PORTS     NAMES
bf3306bfb9eb   nginx     "/docker-entrypoint.…"   36 seconds ago   Up 35 seconds   80/tcp    nginx
[root@host1 ~]# docker images
REPOSITORY   TAG       IMAGE ID       CREATED       SIZE
nginx        latest    6efc10a0510f   3 days ago    142MB