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Giuseppe Scrivano b43863ae2a docs: warn about adding capabilities
Closes: https://bugzilla.redhat.com/show_bug.cgi?id=2345676

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
2025-02-18 15:23:29 +01:00

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####> This option file is used in: ####> podman create, run ####> If file is edited, make sure the changes ####> are applicable to all of those.

--cap-add=capability

Add Linux capabilities.

Granting additional capabilities increases the privileges of the processes running inside the container and potentially allow it to break out of confinement. Capabilities like CAP_SYS_ADMIN, CAP_SYS_PTRACE, CAP_MKNOD and CAP_SYS_MODULE are particularly dangerous when they are not used within a user namespace. Please refer to user_namespaces(7) for a more detailed explanation of the interaction between user namespaces and capabilities.

Before adding any capability, review its security implications and ensure it is really necessary for the containers functionality. See capabilities(7) for more information.