2a961a7113
This command lets the user run a command in a new user namespace like `unshare -u`. It uses the implementation of unshare in buildah. ( fixes #1388 ) Signed-off-by: Divyansh Kamboj <kambojdivyansh2000@gmail.com>
1.3 KiB
% podman-unshare "1"
NAME
podman-unshare - Run a command inside of a modified user namespace.
SYNOPSIS
podman unshare [options] [--] [command]
DESCRIPTION
Launches a process (by default, $SHELL) in a new user namespace. The user namespace is configured so that the invoking user's UID and primary GID appear to be UID 0 and GID 0, respectively. Any ranges which match that user and group in /etc/subuid and /etc/subgid are also mapped in as themselves with the help of the newuidmap(1) and newgidmap(1) helpers.
podman unshare is useful for troubleshooting unprivileged operations and for manually clearing storage and other data related to images and containers.
It is also useful if you want to use the podman mount command. If an unprivileged users wants to mount and work with a container, then they need to execute
podman unshare. Executing podman mount fails for unprivileged users unless the user is running inside a podman unshare session.
EXAMPLE
$ podman unshare id
uid=0(root) gid=0(root) groups=0(root),65534(nobody)
$ podman unshare cat /proc/self/uid_map /proc/self/gid_map
0 1000 1
1 10000 65536
0 1000 1
1 10000 65536
SEE ALSO
podman(1), podman-mount(1), namespaces(7), newuidmap(1), newgidmap(1), user_namespaces(7)