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当我想部署新的图像标签时，我正在使用 systemd/pod 运行容器。停止服务，更新服务文件并启动。但容器无法启动。

系统文件。

[单位] 描述=hello_api Podman 容器 After=network.target

[Service]
Restart=on-failure
RestartSec=3
ExecStartPre=/usr/bin/rm -f /%t/%n-pid /%t/%n-cid
ExecStartPre=-/usr/bin/podman rm hello_api
ExecStart=/usr/bin/podman run --conmon-pidfile  /%t/%n-pid  --cidfile /%t/%n-cid -d  -h modelenv \
        --name hello_api --rm --ulimit=host -p "8001:8001" -p "8443:8443" 7963-hello_api:7.8
ExecStop=/usr/bin/sh -c "/usr/bin/podman rm -f `cat /%t/%n-cid`"
KillMode=none
Type=forking
PIDFile=/%t/%n-pid

[Install]
WantedBy=default.target

这是错误信息。

May 21 10:41:43 webserver systemd[1471]: hello_api.service: Found left-over process 22912 (conmon) in control group while starting unit. Ignoring.
May 21 10:41:43 webserver systemd[1471]: This usually indicates unclean termination of a previous run, or service implementation deficiencies.
May 21 10:41:43 webserver systemd[1471]: hello_api.service: Found left-over process 22922 (node) in control group while starting unit. Ignoring.
May 21 10:41:43 webserver systemd[1471]: This usually indicates unclean termination of a previous run, or service implementation deficiencies.
May 21 10:41:43 webserver systemd[1471]: hello_api.service: Found left-over process 22960 (node) in control group while starting unit. Ignoring.
May 21 10:41:43 webserver systemd[1471]: This usually indicates unclean termination of a previous run, or service implementation deficiencies.
May 21 10:41:44 webserver podman[24565]: 2020-05-21 10:41:44.586396547 -0400 EDT m=+1.090025069 container create 28eaf881f532339766cc96ec27a69d8ad588e07d4bfc70e65e7c54e8a5082933 (image=7963-hello_api:7.8, name=hello_api)
May 21 10:41:45 webserver podman[24565]: Error: error from slirp4netns while setting up port redirection: map[desc:bad request: add_hostfwd: slirp_add_hostfwd failed]
May 21 10:41:45 webserver systemd[1471]: hello_api.service: Control process exited, code=exited status=126
May 21 10:41:45 webserver systemd[1471]: hello_api.service: Failed with result 'exit-code'.
May 21 10:41:45 webserver systemd[1471]: Failed to start call_center_hello_api Podman Container.

为什么会出现此错误，是否可以选择干净地退出旧容器？

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1 回答 1

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我想我们在这里遵循了相同的教程：https ://www.redhat.com/sysadmin/podman-shareable-systemd-services

“将 kill 模式设置为 none 很重要。否则，systemd 将开始与 Podman 竞争以停止和杀死容器进程。这可能导致各种不良副作用和无效状态”

我不确定行为是否发生了变化，但我删除了KillMode=none导致它使用 default 的原因KillMode=control-group。从那以后，我在管理服务方面没有任何问题。另外，我/从一些命令中删除了，因为它被复制了：

ExecStartPre=/usr/bin/rm -f //run/user/1000/registry.service-pid //run/user/1000/registry.service-cid

下雪了：

ExecStartPre=/usr/bin/rm -f /run/user/1000/registry.service-pid /run/user/1000/registry.service-cid

我用于运行 docker 注册表的完整服务文件：

[Unit]
Description=Image Registry

[Service]
Restart=on-failure
ExecStartPre=-/usr/bin/podman volume create registry
ExecStartPre=/usr/bin/rm -f /%t/%n-pid /%t/%n-cid
ExecStart=/usr/bin/podman run --conmon-pidfile %t/%n-pid --cidfile %t/%n-cid -d -p 5000:5000 -v registry:/var/lib/registry --name registry docker.io/library/registry
ExecStop=/usr/bin/sh -c "/usr/bin/podman rm -f `cat %t/%n-cid`"
Type=forking
PIDFile=/%t/%n-pid

[Install]
WantedBy=multi-user.target
于 2021-01-14T14:36:03.057 回答