红帽全球峰会3.5. 重启容器
因为 podman 不支持 --restart 选项，所以您可以将 podman 配置为 systemd 服务，如使用 Podman 将容器移植到 systemd中所述
3.5.1. 使用带有 Podman 的 systemd 单元文件
默认情况下，Podman 为现有容器或 pod 生成一个单元文件。您可以使用 podman generate systemd --new 命令生成更多可移植的 systemd 单元文件。--new 标志指示 Podman 生成创建、启动和删除容器的单元文件。
从正在运行的 Red Hat Quay registry 创建 systemd 单元文件，如下所示：
sudo podman generate systemd --new --files --name redis sudo podman generate systemd --new --files --name postgresql-quay sudo podman generate systemd --new --files --name quay sudo podman generate systemd --new --files --name postgresql-clairv4 sudo podman generate systemd --new --files --name clairv4
$ sudo podman generate systemd --new --files --name redis $ sudo podman generate systemd --new --files --name postgresql-quay $ sudo podman generate systemd --new --files --name quay $ sudo podman generate systemd --new --files --name postgresql-clairv4 $ sudo podman generate systemd --new --files --name clairv4Copy to Clipboard Copied! Toggle word wrap Toggle overflow 将单元文件复制到
/usr/lib/systemd/system，以 root 用户身份安装它们：sudo cp -Z container-redis.service /usr/lib/systemd/system sudo cp -Z container-postgresql-quay.service /usr/lib/systemd/system sudo cp -Z container-quay.service /usr/lib/systemd/system sudo cp -Z container-postgresql-clairv4.service /usr/lib/systemd/system sudo cp -Z container-clairv4.service /usr/lib/systemd/system
$ sudo cp -Z container-redis.service /usr/lib/systemd/system $ sudo cp -Z container-postgresql-quay.service /usr/lib/systemd/system $ sudo cp -Z container-quay.service /usr/lib/systemd/system $ sudo cp -Z container-postgresql-clairv4.service /usr/lib/systemd/system $ sudo cp -Z container-clairv4.service /usr/lib/systemd/systemCopy to Clipboard Copied! Toggle word wrap Toggle overflow 重新载入 systemd Manager 配置：
sudo systemctl daemon-reload
$ sudo systemctl daemon-reloadCopy to Clipboard Copied! Toggle word wrap Toggle overflow 在引导时启用服务并启动它们：
sudo systemctl enable --now container-redis.service sudo systemctl enable --now container-postgresql-quay.service sudo systemctl enable --now container-quay.service sudo systemctl enable --now container-postgresql-clairv4.service sudo systemctl enable --now container-clairv4.service
$ sudo systemctl enable --now container-redis.service $ sudo systemctl enable --now container-postgresql-quay.service $ sudo systemctl enable --now container-quay.service $ sudo systemctl enable --now container-postgresql-clairv4.service $ sudo systemctl enable --now container-clairv4.serviceCopy to Clipboard Copied! Toggle word wrap Toggle overflow
3.5.2. 启动、停止和检查服务的状态
检查 Quay 组件的状态：
sudo systemctl status container-redis.service sudo systemctl status container-postgresql-quay.service sudo systemctl status container-quay.service sudo systemctl status container-postgresql-clairv4.service sudo systemctl status container-clairv4.service
$ sudo systemctl status container-redis.service $ sudo systemctl status container-postgresql-quay.service $ sudo systemctl status container-quay.service $ sudo systemctl status container-postgresql-clairv4.service $ sudo systemctl status container-clairv4.serviceCopy to Clipboard Copied! Toggle word wrap Toggle overflow 停止 Quay 组件服务：
sudo systemctl stop container-redis.service sudo systemctl stop container-postgresql-quay.service sudo systemctl stop container-quay.service sudo systemctl stop container-postgresql-clairv4.service sudo systemctl stop container-clairv4.service
$ sudo systemctl stop container-redis.service $ sudo systemctl stop container-postgresql-quay.service $ sudo systemctl stop container-quay.service $ sudo systemctl stop container-postgresql-clairv4.service $ sudo systemctl stop container-clairv4.serviceCopy to Clipboard Copied! Toggle word wrap Toggle overflow 启动 Quay 组件服务：
sudo systemctl start container-redis.service sudo systemctl start container-postgresql-quay.service sudo systemctl start container-quay.service sudo systemctl start container-postgresql-clairv4.service sudo systemctl start container-clairv4.service
$ sudo systemctl start container-redis.service $ sudo systemctl start container-postgresql-quay.service $ sudo systemctl start container-quay.service $ sudo systemctl start container-postgresql-clairv4.service $ sudo systemctl start container-clairv4.serviceCopy to Clipboard Copied! Toggle word wrap Toggle overflow
3.5.3. 在重启后测试重启
配置并启用服务后，重新引导系统。系统重新启动后，使用 podman ps 检查 Quay 组件的所有容器是否已重启：
在本实例中，Quay 容器本身无法启动。这是因为，在 Quay 中启用了安全扫描时，它会尝试在启动时尝试连接 Clair。但是，Clair 尚未完成初始化过程，因此 Quay 会立即终止连接。若要克服此问题，您需要配置 Quay 服务，使其依赖于 Clair 的服务，如以下部分所示。
3.5.4. 配置 Quay 对 Clair 的依赖项
在 Quay 的 systemd 服务文件中，通过设置 After=container-clairv4.service 在 [Unit] 部分中设置 Clair 服务的依赖项。要让 Clair 容器时间进行初始化，请在 [Service] 部分添加一个延迟，如 RestartSec=30。在对 Clair 配置依赖关系后，以下是修改后的 Quay 文件的示例：
/usr/lib/systemd/system/container-quay.service
更新 Quay 服务配置后，重新引导服务器并立即运行 podman ps ：
最初，Quay 容器将不可用，但一旦 RestartSec delay 到期，它应当会启动：
Quay 容器的 CREATED 字段显示创建时间中的 30 秒差异，如服务定义中所配置。
登录到 quay-server.example.com 上的 Red Hat Quay registry，并确保一切已正确完成。
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