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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.