047、管理Docker Machine（2019-03012 周二）

参考https://www.cnblogs.com/CloudMan6/p/7248188.html

 

 

用docker-machine创建machine的过程很简洁，非常适合多主机环境。除此之外，docker machine也提供了一些子命令方便对machine进行管理。其中最常见的就是无需登录到machine就能执行docker相关操作。

 

 

[root@dm03 ~]# docker-machine env host1

export DOCKER_TLS_VERIFY="1"

export DOCKER_HOST="tcp://123.58.8.20:2376"

export DOCKER_CERT_PATH="/root/.docker/machine/machines/host1"

export DOCKER_MACHINE_NAME="host1"

# Run this command to configure your shell:

# eval $(docker-machine env host1)

[root@dm03 ~]# eval $(docker-machine env host1)

[root@dm03 ~ [host1]]# docker images

REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE

[root@dm03 ~ [host1]]# docker pull busybox

Using default tag: latest

latest: Pulling from library/busybox

697743189b6d: Pull complete

Digest: sha256:061ca9704a714ee3e8b80523ec720c64f6209ad3f97c0ff7cb9ec7d19f15149f

Status: Downloaded newer image for busybox:latest

[root@dm03 ~ [host1]]# docker images

REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE

busybox             latest              d8233ab899d4        3 weeks ago         1.2MB

[root@dm03 ~ [host1]]# docker-machine env host2

export DOCKER_TLS_VERIFY="1"

export DOCKER_HOST="tcp://123.58.8.75:2376"

export DOCKER_CERT_PATH="/root/.docker/machine/machines/host2"

export DOCKER_MACHINE_NAME="host2"

# Run this command to configure your shell:

# eval $(docker-machine env host2)

[root@dm03 ~ [host1]]# eval $(docker-machine env host2)

[root@dm03 ~ [host2]]# docker images

REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE

[root@dm03 ~ [host2]]# docker pull httpd

Using default tag: latest

latest: Pulling from library/httpd

f7e2b70d04ae: Pull complete

84006542c688: Pull complete

dae6fe3c5e81: Pull complete

33fc493aff90: Pull complete

9a4113020573: Pull complete

Digest: sha256:20ead958907f15b638177071afea60faa61d2b6747c216027b8679b5fa58794b

Status: Downloaded newer image for httpd:latest

[root@dm03 ~ [host2]]# docker images

REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE

httpd               latest              2d1e5208483c        6 days ago          132MB

 

[root@dm03 ~]# docker-machine upgrade host1 host2

Waiting for SSH to be available...

Waiting for SSH to be available...

Detecting the provisioner...

Detecting the provisioner...

Upgrading docker...

Upgrading docker...

Restarting docker...

Restarting docker...

 

[root@dm03 ~]# docker-machine config host1

--tlsverify

--tlscacert="/root/.docker/machine/machines/host1/ca.pem"

--tlscert="/root/.docker/machine/machines/host1/cert.pem"

--tlskey="/root/.docker/machine/machines/host1/key.pem"

-H=tcp://123.58.8.20:2376

[root@dm03 ~]# docker-machine config host2

--tlsverify

--tlscacert="/root/.docker/machine/machines/host2/ca.pem"

--tlscert="/root/.docker/machine/machines/host2/cert.pem"

--tlskey="/root/.docker/machine/machines/host2/key.pem"

-H=tcp://123.58.8.75:2376

 

[root@dm03 ~]# docker-machine scp 1.sh host2:/root/    #    scp功能

1.sh                                                                                                       100% 1145     1.1KB/s   00:00    

 

[root@dm03 ~]# eval $(docker-machine env host1)    #    如何退出

[root@dm03 ~ [host1]]# eval $(docker-machine env -u )

[root@dm03 ~]#

 

 

注意：docker-machine stop/start/restart 是对docker host的操作系统进行操作，而非docker daemon