Bug 2132185

Summary:	Allow spc_t to transition to install_t
Product:	[Fedora] Fedora	Reporter:	Colin Walters <walters>
Component:	selinux-policy	Assignee:	Zdenek Pytela <zpytela>
Status:	NEW ---	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	38	CC:	dwalsh, grepl.miroslav, lvrabec, mmalik, omosnacek, pkoncity, vmojzis, zpytela
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Description Colin Walters 2022-10-04 22:14:08 UTC

install_t is the gift that keeps on giving.  Previously e.g. https://bugzilla.redhat.com/show_bug.cgi?id=2110012

(rpm-)ostree needs to be able to write SELinux labels for the *new* OS update, so we run as install_t. 

But for bootstrapping in OpenShift we now want to run rpm-ostree *in a container*, and policy is denying this (when doing a major update of course, minor updates that don't change policies don't hit this, which is why I didn't notice until now)

https://issues.redhat.com/browse/MCO-396

Things work for me with just this:


```
$ cat spc_install.te 

module spc_install 1.0;

require {
	type container_file_t;
	type spc_t;
	type install_t;
	class process transition;
	class file entrypoint;
}

#============= install_t ==============
allow install_t container_file_t:file entrypoint;

#============= spc_t ==============

allow spc_t install_t:process transition;
$
```

Basically we're now doing: podman run --privileged runcon -t install_t ...

Comment 1 Colin Walters 2022-10-04 22:20:59 UTC

(Previously, when we did things like this we had a huge workaround where the code run in the container actually just passed data over to the host process, but that'd be much harder for what we want here)

Short term I may look at just shipping the above in FCOS derivatives and down to RHCOS but it'd be good to just support this out of the box in policy - a privileged container can already do whatever it wants, supporting `runcon -t install_t` just avoids the need to `setenforce 0` etc.

Comment 2 Ben Cotton 2023-02-07 14:56:54 UTC

This bug appears to have been reported against 'rawhide' during the Fedora Linux 38 development cycle.
Changing version to 38.

Comment 3 Aoife Moloney 2024-05-07 15:50:37 UTC

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