如何在 Ubuntu 22.04 LTS 上安装 Podman

Podman 是一个用于虚拟化应用程序的容器工具。它最初由Red Hat开发,起源于Cri-O项目,该项目开发了一个替代Docker运行时环境的轻量级容器运行时环境。Podman 通过允许您在根和无根模式下运行容器来区别于竞争对手。此外,Podman 不是一个正在运行的服务,这意味着它是守护进程。podman-logo

在 Ubuntu 22.04 LTS Jammy Jellyfish 上安装 Podman

第 1 步。首先,通过在终端中运行以下命令,确保所有系统软件包都是最新的。apt

sudo apt update
sudo apt upgrade

第 2 步。在 Ubuntu 22.04 上安装 Podman。

默认情况下,Podman 在 Ubuntu 22.04 基本存储库上可用。现在运行以下命令,将最新版本的 Podman 安装到 Ubuntu 系统中:

sudo apt install podman

现在使用以下命令检查已安装的 Podman 的版本:

podman -v

您还可以使用以下命令查看有关 Podman 的详细信息:

podman info

第 3 步。配置 Podman 注册表。

默认情况下,Podman 注册表未配置为从 Web 下载和安装容器映像,因此我们需要手动执行此操作,以便我们可以使用流行的存储库,例如 Docker.io 和 Fedora:

nano /etc/containers/registries.conf

添加以下行:

[registries.search]
registries=["registry.access.redhat.com", "registry.fedoraproject.org", "docker.io"]

第 3 步。如何使用 Podman。

就像 Docker 一样,我们可以使用 Podman 命令行搜索图像,但来自上一步中添加的不同存储库。您可以在指定为的注册表中搜索 Podman 映像:

podman search debian

接下来,使用以下命令从互联网上下载最新的 Debian 镜像:

podman pull debian

如果您下载了多个映像,现在想查看系统上有哪些可用映像,我们可以使用给定的命令列出所有映像:

podman images

此外,还可以使用以下命令查看正在运行的容器:

sudo podman ps -a

您可以使用以下命令列出所有 Podman 命令选项:

podman --help

输出:

Manage pods, containers and images

Usage:
  podman [options] [command]

Available Commands:
  attach      Attach to a running container
  auto-update Auto update containers according to their auto-update policy
  build       Build an image using instructions from Containerfiles
  commit      Create new image based on the changed container
  container   Manage containers
  cp          Copy files/folders between a container and the local filesystem
  create      Create but do not start a container
  diff        Display the changes to the object's file system
  events      Show podman events
  exec        Run a process in a running container
  export      Export container's filesystem contents as a tar archive
  generate    Generate structured data based on containers, pods or volumes
  healthcheck Manage health checks on containers
  help        Help about any command
  history     Show history of a specified image
  image       Manage images
  images      List images in local storage
  import      Import a tarball to create a filesystem image
  info        Display podman system information
  init        Initialize one or more containers
  inspect     Display the configuration of object denoted by ID
  kill        Kill one or more running containers with a specific signal
  load        Load image(s) from a tar archive
  login       Login to a container registry
  logout      Logout of a container registry
  logs        Fetch the logs of one or more containers
  machine     Manage a virtual machine
  manifest    Manipulate manifest lists and image indexes
  mount       Mount a working container's root filesystem
  network     Manage networks
  pause       Pause all the processes in one or more containers
  play        Play containers, pods or volumes from a structured file
  pod         Manage pods
  port        List port mappings or a specific mapping for the container
  ps          List containers
  pull        Pull an image from a registry
  push        Push an image to a specified destination
  rename      Rename an existing container
  restart     Restart one or more containers
  rm          Remove one or more containers
  rmi         Removes one or more images from local storage
  run         Run a command in a new container
  save        Save image(s) to an archive
  search      Search registry for image
  secret      Manage secrets
  start       Start one or more containers
  stats       Display a live stream of container resource usage statistics
  stop        Stop one or more containers
  system      Manage podman
  tag         Add an additional name to a local image
  top         Display the running processes of a container
  unmount     Unmounts working container's root filesystem
  unpause     Unpause the processes in one or more containers
  unshare     Run a command in a modified user namespace
  untag       Remove a name from a local image
  version     Display the Podman version information
  volume      Manage volumes
  wait        Block on one or more containers

感谢您使用本教程在 Ubuntu 22.04 LTS Jammy Jellyfish 系统上安装 Podman。如需其他帮助或有用信息,我们建议您查看 Podman 网站

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