官方教程
https://docs.docker.com/engine/install/centos/
卸载旧版本
代码语言:javascript复制sudo yum remove docker
docker-client
docker-client-latest
docker-common
docker-latest
docker-latest-logrotate
docker-logrotate
docker-engine
使用 Docker 仓库进行安装
安装 yum-config-manager
代码语言:javascript复制sudo yum install -y yum-utils
device-mapper-persistent-data
lvm2
清华源
代码语言:javascript复制sudo yum-config-manager
--add-repo
https://mirrors.tuna.tsinghua.edu.cn/docker-ce/linux/centos/docker-ce.repo
官方源(可能很慢)
代码语言:javascript复制sudo yum-config-manager
--add-repo
https://download.docker.com/linux/centos/docker-ce.repo
安装 Docker Engine-Community
中途若提示您接受 GPG 密钥,请选是。
代码语言:javascript复制sudo yum install docker-ce docker-ce-cli containerd.io
存储库中列出可用版本
此示例按版本号(从高到低)对结果进行排序。
代码语言:javascript复制yum list docker-ce --showduplicates | sort -r
代码语言:javascript复制Installed Packages
docker-ce.x86_64 3:19.03.9-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.8-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.7-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.6-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.5-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.4-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.3-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.2-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.1-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.12-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.12-3.el7 @docker-ce-stable
docker-ce.x86_64 3:19.03.11-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.10-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.0-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.9-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.8-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.7-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.6-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.5-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.4-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.3-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.2-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.1-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.0-3.el7 docker-ce-stable
docker-ce.x86_64 18.06.3.ce-3.el7 docker-ce-stable
docker-ce.x86_64 18.06.2.ce-3.el7 docker-ce-stable
docker-ce.x86_64 18.06.1.ce-3.el7 docker-ce-stable
docker-ce.x86_64 18.06.0.ce-3.el7 docker-ce-stable
docker-ce.x86_64 18.03.1.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 18.03.0.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.12.1.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.12.0.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.09.1.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.09.0.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.06.2.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.06.1.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.06.0.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.03.3.ce-1.el7 docker-ce-stable
docker-ce.x86_64 17.03.2.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.03.1.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.03.0.ce-1.el7.centos docker-ce-stable
Available Packages
安装特定版本
该软件包名称是软件包名称(docker-ce)加上版本字符串(第二列),从第一个冒号(:)一直到第一个连字符,并用连字符(-)分隔。例如: docker-ce-18.06.3.ce-3.el7
代码语言:javascript复制sudo yum install docker-ce-<VERSION_STRING> docker-ce-cli-<VERSION_STRING> containerd.io
代码语言:javascript复制sudo yum install docker-ce-18.06.3.ce-3.el7 docker-ce-cli-18.06.3.ce-3.el7 containerd.io
安装最新版本
代码语言:javascript复制sudo yum install docker-ce docker-ce-cli containerd.io
启动 docker
代码语言:javascript复制sudo systemctl start docker
验证安装了 Docker Engine-Community
通过运行 hello-world 映像来验证
代码语言:javascript复制sudo docker run hello-world
安装日志
代码语言:javascript复制[root@izj6c5nf8wcjt6n2zcxwegz ~]# free -h
total used free shared buff/cache available
Mem: 1.8G 111M 339M 380K 1.4G 1.5G
Swap: 0B 0B 0B
[root@izj6c5nf8wcjt6n2zcxwegz ~]# sudo yum install -y yum-utils
> device-mapper-persistent-data
> lvm2
Loaded plugins: fastestmirror
base | 3.6 kB 00:00:00
docker-ce-stable | 3.5 kB 00:00:00
epel | 4.7 kB 00:00:00
extras | 2.9 kB 00:00:00
updates | 2.9 kB 00:00:00
Loading mirror speeds from cached hostfile
Package yum-utils-1.1.31-54.el7_8.noarch already installed and latest version
Resolving Dependencies
--> Running transaction check
---> Package device-mapper-persistent-data.x86_64 0:0.7.3-3.el7 will be updated
---> Package device-mapper-persistent-data.x86_64 0:0.8.5-2.el7 will be an update
---> Package lvm2.x86_64 7:2.02.180-10.el7_6.2 will be updated
---> Package lvm2.x86_64 7:2.02.186-7.el7_8.2 will be an update
--> Processing Dependency: lvm2-libs = 7:2.02.186-7.el7_8.2 for package: 7:lvm2-2.02.186-7.el7_8.2.x86_64
--> Running transaction check
---> Package lvm2-libs.x86_64 7:2.02.180-10.el7_6.2 will be updated
---> Package lvm2-libs.x86_64 7:2.02.186-7.el7_8.2 will be an update
--> Processing Dependency: device-mapper-event = 7:1.02.164-7.el7_8.2 for package: 7:lvm2-libs-2.02.186-7.el7_8.2.x86_64
--> Running transaction check
---> Package device-mapper-event.x86_64 7:1.02.149-10.el7_6.2 will be updated
---> Package device-mapper-event.x86_64 7:1.02.164-7.el7_8.2 will be an update
--> Processing Dependency: device-mapper-event-libs = 7:1.02.164-7.el7_8.2 for package: 7:device-mapper-event-1.02.164-7.el7_8.2.x86_64
--> Processing Dependency: device-mapper = 7:1.02.164-7.el7_8.2 for package: 7:device-mapper-event-1.02.164-7.el7_8.2.x86_64
--> Running transaction check
---> Package device-mapper.x86_64 7:1.02.149-10.el7_6.2 will be updated
--> Processing Dependency: device-mapper = 7:1.02.149-10.el7_6.2 for package: 7:device-mapper-libs-1.02.149-10.el7_6.2.x86_64
---> Package device-mapper.x86_64 7:1.02.164-7.el7_8.2 will be an update
---> Package device-mapper-event-libs.x86_64 7:1.02.149-10.el7_6.2 will be updated
---> Package device-mapper-event-libs.x86_64 7:1.02.164-7.el7_8.2 will be an update
--> Running transaction check
---> Package device-mapper-libs.x86_64 7:1.02.149-10.el7_6.2 will be updated
---> Package device-mapper-libs.x86_64 7:1.02.164-7.el7_8.2 will be an update
--> Finished Dependency Resolution
Dependencies Resolved
==========================================================================================================================
Package Arch Version Repository Size
==========================================================================================================================
Updating:
device-mapper-persistent-data x86_64 0.8.5-2.el7 base 422 k
lvm2 x86_64 7:2.02.186-7.el7_8.2 updates 1.3 M
Updating for dependencies:
device-mapper x86_64 7:1.02.164-7.el7_8.2 updates 295 k
device-mapper-event x86_64 7:1.02.164-7.el7_8.2 updates 191 k
device-mapper-event-libs x86_64 7:1.02.164-7.el7_8.2 updates 190 k
device-mapper-libs x86_64 7:1.02.164-7.el7_8.2 updates 324 k
lvm2-libs x86_64 7:2.02.186-7.el7_8.2 updates 1.1 M
Transaction Summary
==========================================================================================================================
Upgrade 2 Packages ( 5 Dependent packages)
Total download size: 3.8 M
Downloading packages:
Delta RPMs disabled because /usr/bin/applydeltarpm not installed.
(1/7): device-mapper-event-1.02.164-7.el7_8.2.x86_64.rpm | 191 kB 00:00:00
(2/7): device-mapper-1.02.164-7.el7_8.2.x86_64.rpm | 295 kB 00:00:00
(3/7): device-mapper-event-libs-1.02.164-7.el7_8.2.x86_64.rpm | 190 kB 00:00:00
(4/7): device-mapper-libs-1.02.164-7.el7_8.2.x86_64.rpm | 324 kB 00:00:00
(5/7): lvm2-libs-2.02.186-7.el7_8.2.x86_64.rpm | 1.1 MB 00:00:00
(6/7): lvm2-2.02.186-7.el7_8.2.x86_64.rpm | 1.3 MB 00:00:00
(7/7): device-mapper-persistent-data-0.8.5-2.el7.x86_64.rpm | 422 kB 00:00:00
--------------------------------------------------------------------------------------------------------------------------
Total 16 MB/s | 3.8 MB 00:00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Updating : 7:device-mapper-1.02.164-7.el7_8.2.x86_64 1/14
Updating : 7:device-mapper-libs-1.02.164-7.el7_8.2.x86_64 2/14
Updating : 7:device-mapper-event-libs-1.02.164-7.el7_8.2.x86_64 3/14
Updating : 7:device-mapper-event-1.02.164-7.el7_8.2.x86_64 4/14
Updating : 7:lvm2-libs-2.02.186-7.el7_8.2.x86_64 5/14
Updating : device-mapper-persistent-data-0.8.5-2.el7.x86_64 6/14
Updating : 7:lvm2-2.02.186-7.el7_8.2.x86_64 7/14
Cleanup : 7:lvm2-2.02.180-10.el7_6.2.x86_64 8/14
Cleanup : 7:lvm2-libs-2.02.180-10.el7_6.2.x86_64 9/14
Cleanup : 7:device-mapper-event-1.02.149-10.el7_6.2.x86_64 10/14
Cleanup : 7:device-mapper-event-libs-1.02.149-10.el7_6.2.x86_64 11/14
Cleanup : 7:device-mapper-1.02.149-10.el7_6.2.x86_64 12/14
Cleanup : 7:device-mapper-libs-1.02.149-10.el7_6.2.x86_64 13/14
Cleanup : device-mapper-persistent-data-0.7.3-3.el7.x86_64 14/14
Verifying : device-mapper-persistent-data-0.8.5-2.el7.x86_64 1/14
Verifying : 7:lvm2-libs-2.02.186-7.el7_8.2.x86_64 2/14
Verifying : 7:device-mapper-event-1.02.164-7.el7_8.2.x86_64 3/14
Verifying : 7:device-mapper-libs-1.02.164-7.el7_8.2.x86_64 4/14
Verifying : 7:lvm2-2.02.186-7.el7_8.2.x86_64 5/14
Verifying : 7:device-mapper-1.02.164-7.el7_8.2.x86_64 6/14
Verifying : 7:device-mapper-event-libs-1.02.164-7.el7_8.2.x86_64 7/14
Verifying : device-mapper-persistent-data-0.7.3-3.el7.x86_64 8/14
Verifying : 7:device-mapper-event-1.02.149-10.el7_6.2.x86_64 9/14
Verifying : 7:device-mapper-1.02.149-10.el7_6.2.x86_64 10/14
Verifying : 7:lvm2-libs-2.02.180-10.el7_6.2.x86_64 11/14
Verifying : 7:lvm2-2.02.180-10.el7_6.2.x86_64 12/14
Verifying : 7:device-mapper-libs-1.02.149-10.el7_6.2.x86_64 13/14
Verifying : 7:device-mapper-event-libs-1.02.149-10.el7_6.2.x86_64 14/14
Updated:
device-mapper-persistent-data.x86_64 0:0.8.5-2.el7 lvm2.x86_64 7:2.02.186-7.el7_8.2
Dependency Updated:
device-mapper.x86_64 7:1.02.164-7.el7_8.2 device-mapper-event.x86_64 7:1.02.164-7.el7_8.2
device-mapper-event-libs.x86_64 7:1.02.164-7.el7_8.2 device-mapper-libs.x86_64 7:1.02.164-7.el7_8.2
lvm2-libs.x86_64 7:2.02.186-7.el7_8.2
Complete!
[root@izj6c5nf8wcjt6n2zcxwegz ~]# sudo yum-config-manager
> --add-repo
> http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
Loaded plugins: fastestmirror
adding repo from: http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
grabbing file http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo to /etc/yum.repos.d/docker-ce.repo
repo saved to /etc/yum.repos.d/docker-ce.repo
[root@izj6c5nf8wcjt6n2zcxwegz ~]# sudo yum install docker-ce docker-ce-cli containerd.io
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
Resolving Dependencies
--> Running transaction check
---> Package containerd.io.x86_64 0:1.2.0-3.el7 will be updated
---> Package containerd.io.x86_64 0:1.2.13-3.2.el7 will be an update
---> Package docker-ce.x86_64 3:18.09.0-3.el7 will be updated
---> Package docker-ce.x86_64 3:19.03.12-3.el7 will be an update
---> Package docker-ce-cli.x86_64 1:18.09.0-3.el7 will be updated
---> Package docker-ce-cli.x86_64 1:19.03.12-3.el7 will be an update
--> Finished Dependency Resolution
Dependencies Resolved
==========================================================================================================================
Package Arch Version Repository Size
==========================================================================================================================
Updating:
containerd.io x86_64 1.2.13-3.2.el7 docker-ce-stable 25 M
docker-ce x86_64 3:19.03.12-3.el7 docker-ce-stable 24 M
docker-ce-cli x86_64 1:19.03.12-3.el7 docker-ce-stable 38 M
Transaction Summary
==========================================================================================================================
Upgrade 3 Packages
Total download size: 88 M
Is this ok [y/d/N]: y
Downloading packages:
Delta RPMs disabled because /usr/bin/applydeltarpm not installed.
(1/3): docker-ce-19.03.12-3.el7.x86_64.rpm | 24 MB 00:00:01
(2/3): docker-ce-cli-19.03.12-3.el7.x86_64.rpm | 38 MB 00:00:03
(3/3): containerd.io-1.2.13-3.2.el7.x86_64.rpm | 25 MB 00:00:05
--------------------------------------------------------------------------------------------------------------------------
Total 17 MB/s | 88 MB 00:00:05
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Updating : 1:docker-ce-cli-19.03.12-3.el7.x86_64 1/6
Updating : containerd.io-1.2.13-3.2.el7.x86_64 2/6
Updating : 3:docker-ce-19.03.12-3.el7.x86_64 3/6
/usr/bin/dockerd has not been configured as an alternative for dockerd
Cleanup : 3:docker-ce-18.09.0-3.el7.x86_64 4/6
Cleanup : 1:docker-ce-cli-18.09.0-3.el7.x86_64 5/6
Cleanup : containerd.io-1.2.0-3.el7.x86_64 6/6
Verifying : containerd.io-1.2.13-3.2.el7.x86_64 1/6
Verifying : 1:docker-ce-cli-19.03.12-3.el7.x86_64 2/6
Verifying : 3:docker-ce-19.03.12-3.el7.x86_64 3/6
Verifying : 3:docker-ce-18.09.0-3.el7.x86_64 4/6
Verifying : 1:docker-ce-cli-18.09.0-3.el7.x86_64 5/6
Verifying : containerd.io-1.2.0-3.el7.x86_64 6/6
Updated:
containerd.io.x86_64 0:1.2.13-3.2.el7 docker-ce.x86_64 3:19.03.12-3.el7 docker-ce-cli.x86_64 1:19.03.12-3.el7
Complete!
[root@izj6c5nf8wcjt6n2zcxwegz ~]# yum list docker-ce --showduplicates | sort -r
Loading mirror speeds from cached hostfile
Loaded plugins: fastestmirror
Installed Packages
docker-ce.x86_64 3:19.03.9-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.8-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.7-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.6-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.5-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.4-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.3-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.2-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.1-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.12-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.12-3.el7 @docker-ce-stable
docker-ce.x86_64 3:19.03.11-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.10-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.0-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.9-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.8-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.7-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.6-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.5-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.4-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.3-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.2-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.1-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.0-3.el7 docker-ce-stable
docker-ce.x86_64 18.06.3.ce-3.el7 docker-ce-stable
docker-ce.x86_64 18.06.2.ce-3.el7 docker-ce-stable
docker-ce.x86_64 18.06.1.ce-3.el7 docker-ce-stable
docker-ce.x86_64 18.06.0.ce-3.el7 docker-ce-stable
docker-ce.x86_64 18.03.1.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 18.03.0.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.12.1.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.12.0.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.09.1.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.09.0.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.06.2.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.06.1.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.06.0.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.03.3.ce-1.el7 docker-ce-stable
docker-ce.x86_64 17.03.2.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.03.1.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.03.0.ce-1.el7.centos docker-ce-stable
Available Packages
[root@izj6c5nf8wcjt6n2zcxwegz ~]#
[root@izj6c5nf8wcjt6n2zcxwegz ~]# sudo yum install docker-ce-18.06.3.ce-3.el7 docker-ce-cli-18.06.3.ce-3.el7 containerd.ioLoaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
Package matching docker-ce-18.06.3.ce-3.el7.x86_64 already installed. Checking for update.
No package docker-ce-cli-18.06.3.ce-3.el7 available.
Package containerd.io-1.2.13-3.2.el7.x86_64 already installed and latest version
Nothing to do
[root@izj6c5nf8wcjt6n2zcxwegz ~]# sudo systemctl start docker
[root@izj6c5nf8wcjt6n2zcxwegz ~]# free -h
total used free shared buff/cache available
Mem: 1.8G 176M 145M 388K 1.5G 1.4G
Swap: 0B 0B 0B
列出和删除 image 文件
代码语言:javascript复制# 列出本机的所有 image 文件。
$ docker image ls
# 删除 image 文件
$ docker image rm [imageName]
拉取 image 文件
代码语言:javascript复制docker image pull library/hello-world
上面代码中,docker image pull
是抓取 image 文件的命令。library/hello-world
是 image 文件在仓库里面的位置,其中library
是 image 文件所在的组,hello-world
是 image 文件的名字。
由于 Docker 官方提供的 image 文件,都放在library
组里面,所以它的是默认组,可以省略。因此,上面的命令可以写成下面这样。
docker image pull hello-world
运行 image 文件
代码语言:javascript复制docker container run hello-world
docker container run
命令会从 image 文件,生成一个正在运行的容器实例。
注意,docker container run
命令具有自动抓取 image 文件的功能。如果发现本地没有指定的 image 文件,就会从仓库自动抓取。因此,前面的 docker image pull
命令并不是必需的步骤。
列出和删除容器文件
代码语言:javascript复制# 列出本机正在运行的容器
$ docker container ls
# 列出本机所有容器,包括终止运行的容器
$ docker container ls --all
# 删除指定容器 ID 容器文件
$ docker container rm [containerID]
终止或停止容器文件
代码语言:javascript复制# 相当于向容器里面的主进程发出 SIGKILL 信号
docker container kill [containID]
# 相当于向容器里面的主进程发出 SIGTERM 信号,然后过一段时间再发出 SIGKILL 信号
docker container stop [containerID]
Compose 安装
- https://docs.docker.com/compose/install/#install-compose(docker 安装教程)
- https://www.runoob.com/docker/docker-compose.html(菜鸟安装教程)
- https://github.com/docker/compose/releases(最新版本查看)
Install Compose on Linux systems
On Linux, you can download the Docker Compose binary from the Compose repository release page on GitHub. Follow the instructions from the link, which involve running the curl
command in your terminal to download the binaries. These step-by-step instructions are also included below.
For
alpine
, the following dependency packages are needed:py-pip
,python3-dev
,libffi-dev
,openssl-dev
,gcc
,libc-dev
,rust
,cargo
andmake
.
Run this command to download the current stable release of Docker Compose:
代码语言:javascript复制sudo curl -L "https://github.com/docker/compose/releases/download/v2.15.1/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
To install a different version of Compose, substitute
1.28.5
with the version of Compose you want to use.
If you have problems installing with curl
, see Alternative Install Options tab above.
Apply executable permissions to the binary:
代码语言:javascript复制sudo chmod x /usr/local/bin/docker-compose
Note: If the command
docker-compose
fails after installation, check your path. You can also create a symbolic link to/usr/bin
or any other directory in your path.
For example:
代码语言:javascript复制sudo ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose
Optionally, install command completion for the bash
and zsh
shell.
Test the installation.
代码语言:javascript复制$ docker-compose --version
docker-compose version 1.28.5, build 1110ad01