The health snapshot's temp directory, chmod and mv in /run every 5
minutes showed up in Defender's timeline as "Data Staged" and
"Executable permissions were added". Drop the snapshot service and
timer. The compliance script now runs `mdatp health` through
systemd-run, so systemd starts mdatp and Defender answers it even when
the script runs inside himmelblaud-tasks. Without systemd-run access it
asks mdatp directly, as before. No image support needed, so the script
works on other distros as is.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
The first snapshot came 2 minutes after boot, so the compliance check at
the first sign-in found none, fell back to mdatp (which won't answer it)
and reported Defender as not running. Himmelblau then doesn't check again
for 8 hours. Start the timer 20 seconds after boot, and wait up to
2 minutes for the daemon to answer so that snapshot isn't a false
"not running". The timer runs it in the background, so boot isn't held up.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Himmelblau runs the custom compliance script inside himmelblaud-tasks,
and Defender refuses to answer `mdatp health` there: the daemon can't
read /proc/<himmelblaud_tasks>/cmdline while checking the caller
("Permission denied" in microsoft_defender_err.log). The script saw no
daemon, and every Defender rule failed although Defender was healthy.
Add mdatp-health-snapshot.timer, which saves the health fields to
/run/mdatp-health every 5 minutes as root, outside that service. The
compliance script reads the snapshot when it's under 20 minutes old and
otherwise asks mdatp directly, so it still works on other distros.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
libhimmelblau reports "PRETTY_NAME VERSION_ID" as the OS version, and
Fedora's PRETTY_NAME already contains the version, so Entra showed
"Fedora Linux 44.20261020.0 (Forty Four) 44.20261020.0". In the
os-release the Himmelblau daemons see, set PRETTY_NAME to NAME, giving
"Fedora Linux 44.20261020.0". Nothing else in Himmelblau reads
PRETTY_NAME.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
The managed config shipped in /etc never reached updated devices:
mdatp-firstboot creates /etc/opt/microsoft/mdatp on the device, so ostree's
/etc merge treats that directory as local and doesn't add new image files
under it. VM 123 had the file in /usr/etc but not in /etc, and Defender
kept its defaults.
Ship it in /usr/share/mdatp-managed/ and install it into
/etc/opt/microsoft/mdatp/managed/ from an ExecStartPre in mdatp.service.
This also applies changes from newer images and undoes local edits.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Defender's defaults left behavior monitoring off and every setting
unmanaged. Ship /etc/opt/microsoft/mdatp/managed/mdatp_managed.json:
real-time protection, behavior monitoring, PUA blocking, cloud-delivered
protection at the high block level, automatic definition updates and
sample submission, and scheduled scans (daily quick at 12:00, weekly full
on Wednesday 12:30, low priority). Users can't change managed settings.
The build fails if the file isn't valid JSON.
Network protection (Insiders channels only) and tamper protection
(audit-only preview on Linux) are left out.
The compliance script and rules now also check behavior monitoring and
cloud-delivered protection.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
A paste into Intune that lost the first "{" line produced an unreadable
mdatp_onboard.json, and Defender reported "No license found". Check that
the pasted JSON parses and has onboardingInfo before writing it, and log
what to fix otherwise.
The placeholder also appeared twice, so a find-and-replace of it broke
the script; match it by prefix so it appears only once.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
local_sudo_group was set to wheel but sudo_groups was empty, so no Entra
user ever got sudo. Members of the Entra group
c3b1cfcc-7834-47eb-948b-a22204276453 now get wheel at sign-in, and lose
it again after leaving the group.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
The RHEL 10 repo was there for the Intune app, which only ships for RHEL;
that app is gone and the repo now only provides mdatp. Use Microsoft's
Fedora 44 repo instead: Fedora is a supported Defender distribution
(servers and the Linux desktop preview), and it carries a newer build
(101.26091.0003 vs 101.26081.0010 in the RHEL 10 repo). Same signing key
and signed metadata.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Himmelblau installs Intune Linux custom configuration scripts as
/etc/cron.d jobs, and the image had no cron, so a script policy failed to
apply. Add cronie and enable crond.
Add a custom configuration script that repairs Microsoft Defender on its
schedule: finishes first-boot setup, restarts a stopped daemon, onboards with
the tenant's mdatp_onboard.json (pasted into the script in Intune), and
re-enables real-time protection and updates definitions when needed.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Himmelblau reports VERSION_ID from /etc/os-release as the device OS version,
so Intune showed "44". Give himmelblaud and himmelblaud-tasks their own
os-release (bind-mounted in their mount namespace only) with VERSION_ID set to
OSTREE_VERSION, e.g. 44.20261019.0. The rest of the system keeps the stock
VERSION_ID that toolbox, flatpak and dnf expect.
Add an Intune custom compliance discovery script and rules for Microsoft
Defender for Endpoint (installed, running, onboarded, licensed, healthy,
real-time protection, definitions up to date). These are uploaded to Intune,
not shipped in the image.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
himmelblau-sso registers its native messaging host and force-installs
the Linux Entra SSO extension only for Chrome, Chromium and Firefox.
Edge reads /etc/opt/edge, so ship the same two files there.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Go with Entra ID sign-in through Himmelblau for fedora-intune and drop
the Microsoft Intune app (intune-portal, identity broker) variant. With
a single image, the workstation, Edge and Defender manifests move back
from images/shared into images/fedora-intune, and CI builds just that
image again. The Microsoft repo is now limited to mdatp and Edge.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Fixes found by building and inspecting the image:
- Select the Intune authselect profile with-altfiles. Without it system
users in /usr/lib/passwd (gdm, pipewire, mdatp) do not resolve and the
login screen never starts. The build now fails if gdm does not resolve.
- Ship /opt as a plain directory (opt-usrlocal: root). Defender installs
to /opt/microsoft/mdatp and keeps state in /var/opt/microsoft/mdatp;
with the default /opt -> /var/opt symlink those were the same
read-only directory. rpm-ostree still relocates /opt content to
/usr/lib/opt, so finalize.d/60-opt-links links it back (only for images
where /opt is a directory; fedora-cosmic/remote are unaffected).
- Run Defender's %post on first boot (mdatp-firstboot.service): in a
compose /var is read-only and the machine GUID/state must not be
shared. mdatp.service waits for it.
New image fedora-intune-himmelblau: the same workstation with Entra ID
sign-in through Himmelblau (Community Nightly packages), which joins the
device at the first sign-in and enrolls it in Intune (apply_policy)
instead of the Microsoft Intune app. Workstation, Edge and Defender
manifests move to images/shared so both images use them; build.sh copies
images/shared/*.yaml and CI builds both images in one matrix job.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
New image for testing Microsoft Intune enrollment and Linux compliance
policies: a minimal GNOME workstation (gnome-initial-setup, Ptyxis,
Files) with the Intune app, the Microsoft identity broker, Edge and
Defender for Endpoint (mdatp) from packages.microsoft.com (RHEL 10
builds, limited to those packages with includepkgs).
No Kanidm: the Intune app installs its own authselect profile with
pam_intune for the password compliance checks. Its %post cannot select
the profile or load the SELinux module during a compose, so both are
redone in postprocess.
build.sh now copies every *.yaml of an image, so manifests can be split
into more files than manifest.yaml and custom.yaml.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
