From 60d4d0cb6641e1ca3824aa9a803d40391c3103bb Mon Sep 17 00:00:00 2001
From: Colin Walters <walters@verbum.org>
Date: Thu, 15 Feb 2024 13:21:46 -0500
Subject: [PATCH] Enable composefs for 41+

We really want to aim to eventually enable this by default, let's
test things out in rawhide.

A thing that this is known to break is the "chattr -i" hack
for new toplevel dirs (xref https://github.com/coreos/rpm-ostree/issues/337 )

Basically if you want that, you either need to make a derived image,
or enable transient root.
---
 manifests/composefs.yaml                               | 3 +++
 manifests/fedora-coreos.yaml                           | 2 ++
 overlay.d/08composefs/README.md                        | 2 ++
 overlay.d/08composefs/usr/lib/ostree/prepare-root.conf | 2 ++
 4 files changed, 9 insertions(+)
 create mode 100644 manifests/composefs.yaml
 create mode 100644 overlay.d/08composefs/README.md
 create mode 100644 overlay.d/08composefs/usr/lib/ostree/prepare-root.conf

diff --git a/manifests/composefs.yaml b/manifests/composefs.yaml
new file mode 100644
index 000000000..d575c1349
--- /dev/null
+++ b/manifests/composefs.yaml
@@ -0,0 +1,3 @@
+# Enable composefs by default.
+ostree-layers:
+  - overlay/08composefs
diff --git a/manifests/fedora-coreos.yaml b/manifests/fedora-coreos.yaml
index 0be3297d2..ab36825bf 100644
--- a/manifests/fedora-coreos.yaml
+++ b/manifests/fedora-coreos.yaml
@@ -46,6 +46,8 @@ conditional-include:
   # Wifi firmwares will be dropped in F41
   - if: releasever < 41
     include: wifi-firmwares.yaml
+  - if: stream == "rawhide"
+    include: composefs.yaml
 
 ostree-layers:
   - overlay/15fcos
diff --git a/overlay.d/08composefs/README.md b/overlay.d/08composefs/README.md
new file mode 100644
index 000000000..487f8be8f
--- /dev/null
+++ b/overlay.d/08composefs/README.md
@@ -0,0 +1,2 @@
+Enable composefs by default; more in https://ostreedev.github.io/ostree/composefs/
+For now rawhide only.
diff --git a/overlay.d/08composefs/usr/lib/ostree/prepare-root.conf b/overlay.d/08composefs/usr/lib/ostree/prepare-root.conf
new file mode 100644
index 000000000..2faae22bc
--- /dev/null
+++ b/overlay.d/08composefs/usr/lib/ostree/prepare-root.conf
@@ -0,0 +1,2 @@
+[composefs]
+enabled = true