使用绑定挂载运行容器化的MongoDB [英] Running containerized MongoDB with bind mount

问题描述

我在OCI容器（docker.io/library/mongo）中运行MongoDB。我想在/ data / db（在Kubernetes看来是hostPath挂载）的容器内挂载一个主机目录。我不认为问题与Podman或Silverblue不兼容有关，但我在Fedora Silverblue（具有相同CLI的Docker替代品）上使用Podman。

I am running MongoDB in a OCI container (docker.io/library/mongo). I want to mount a host directory inside the container at /data/db (a hostPath mount in Kubernetes parlance). I am using Podman on Fedora Silverblue (a Docker alternative with the same CLI) though I don't think the problem is with Podman or Silverblue incompatibility.

使用：

podman run --name container_name -p=27017:27017 --mount type=bind,source=/path/to/dir,target=/data/db -d mongo

或

podman run --name container_name -p=27017:27017 -v /path/to/dir:/data/db -d mongo

容器退出并显示以下日志：

the container exits with to following logs:

cannot configure rootless cgroup using the cgroupfs manager
find: '/data/db': Permission denied
chown: changing ownership of '/data/db': Permission denied

容器中mongo用户的用户ID为999，我尝试将主机的目录更改为此用户，但这无济于事。我还尝试将主机的文件夹设置为具有全局读/写访问权限，但这仍然无济于事。

The user id for the mongo user in the container is 999 and I have tried changing the host's directory to this user but this does not help. I have also tried setting the host's folder to have global r/w access, but again this does not help.

推荐答案

事实证明，添加 relabel = shared 可使目录安装。因此命令变为
podman run --name container_name -p = 27017：27017 --mount type = bind，destination = / data / db，relabel = shared -d mongo

It turns out that adding relabel=shared allows the directory to mount. So the command becomes podman run --name container_name -p=27017:27017 --mount type=bind,destination=/data/db,relabel=shared -d mongo

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