ci: Skip composefs tests on CentOS 9

On CentOS 9, composefs installation fails with EUCLEAN. Skipping the
tests until we figure it out

Avoid accessing status.booted.composefs.bootloader outside the composefs
path in `test-install-outside-container`

Increase DISK_IMG size to 15G in `test-install-to-filesystem-var-mount`
as we need a larger ESP for composefs, and since we ate up space for
that, ostree test failed with insufficient space

Signed-off-by: Pragyan Poudyal <pragyanpoudyal41999@gmail.com>

Author: Johan-Liebert1

.github/workflows/ci.yml

@@ -166,6 +166,12 @@ jobs:
           # centos-9 UKI is experimental/broken (https://github.com/bootc-dev/bootc/issues/1812)
           - test_os: centos-9
             variant: composefs-sealeduki-sdboot
+          # centos-9 fails with EUCLEAN (https://github.com/bootc-dev/bootc/issues/1812)
+          # See: https://github.com/bootc-dev/bcvk/pull/204
+          - test_os: centos-9
+            variant: composefs-sdboot
+          - test_os: centos-9
+            variant: composefs-grub
 
     runs-on: ubuntu-24.04
 

tmt/tests/booted/test-install-outside-container.nu

@@ -31,10 +31,9 @@ umount /var/mnt
 # And using systemd-run here breaks our install_t so we disable SELinux enforcement
 setenforce 0
 
-let st = bootc status --json | from json
-let bootloader = ($st.status.booted.composefs.bootloader | str downcase)
-
 let install_cmd = if (tap is_composefs) {
+    let st = bootc status --json | from json
+    let bootloader = ($st.status.booted.composefs.bootloader | str downcase)
     $"bootc install to-disk --disable-selinux --via-loopback --composefs-backend --bootloader=($bootloader) --filesystem ext4 --source-imgref ($target_image) ./disk.img"
 } else {
     $"bootc install to-disk --disable-selinux --via-loopback --filesystem xfs --source-imgref ($target_image) ./disk.img"

tmt/tests/booted/test-install-to-filesystem-var-mount.sh

@@ -33,9 +33,10 @@ RUN rm -rf /usr/lib/bootc/bound-images.d/*
 EOF
 podman build -t "$TARGET_IMAGE" -f /tmp/Containerfile.drop-lbis
 
-# Create a 12GB sparse disk image in /var/tmp (not /tmp which may be tmpfs)
+# Create a 15GB sparse disk image in /var/tmp (not /tmp which may be tmpfs)
+# Increased this as we want a larger ESP for composefs
 DISK_IMG=/var/tmp/disk-var-mount-test.img
-truncate -s 12G "$DISK_IMG"
+truncate -s 15G "$DISK_IMG"
 
 # Setup loop device
 LOOP_DEV=$(losetup -f --show "$DISK_IMG")