第 3 章 Podman

某些 Redhat 家族的 Linux 是自带 Podman，例如 Almalinux 9.0，RockyLinux没有自带 podman 需要自己安装，是方法执行下面的命令

			
[root@netkiller ~]# dnf install -y podman
		
		

Almalinux 9.0 自带 podman

		 
systemctl enable podman		
		
		

MacOS 安装方法

			 
brew install podman
            
		

初始化，启动 Podman

			 
podman machine init
podman machine start
            
		

操作演示

			 
neo@MacBook-Pro-M2 ~ % podman machine init
Downloading VM image: fedora-coreos-37.20221127.2.0-qemu.aarch64.qcow2.xz: done  
Extracting compressed file Image resized.
Machine init complete
To start your machine run:

    podman machine start

neo@MacBook-Pro-M2 ~ % podman machine start          
Starting machine "podman-machine-default"
Waiting for VM ...
Mounting volume... /Users/neo:/Users/neo

This machine is currently configured in rootless mode. If your containers
require root permissions (e.g. ports < 1024), or if you run into compatibility
issues with non-podman clients, you can switch using the following command: 

    podman machine set --rootful

API forwarding listening on: /Users/neo/.local/share/containers/podman/machine/podman-machine-default/podman.sock

The system helper service is not installed; the default Docker API socket
address can't be used by podman. If you would like to install it run the
following commands:

    sudo /opt/homebrew/Cellar/podman/4.3.1/bin/podman-mac-helper install
    podman machine stop; podman machine start

You can still connect Docker API clients by setting DOCKER_HOST using the
following command in your terminal session:

    export DOCKER_HOST='unix:///Users/neo/.local/share/containers/podman/machine/podman-machine-default/podman.sock'

Machine "podman-machine-default" started successfully
            
		

启用 socket

		 
systemctl enable podman.socket
systemctl start podman.socket
systemctl status podman.socket
		
		

验证 sock 是否正常工作

		 
[root@localhost ~]# curl -H "Content-Type: application/json" --unix-socket /run/podman/podman.sock http://localhost/_ping
OK
		
		

此时可以使用 docker compose

		 
[root@localhost ~]# ln -s /run/podman/podman.sock /var/run/docker.sock		
		
		

/etc/containers/registries.conf

		 
$ podman pull maven
$ podman run -v ~/.m2:/root/.m2 \
-v /root/bottleneck:/root/bottleneck \
-w /root/bottleneck \
maven:latest \
mvn package