build-sys: Always install initramfs module

Now that we've cut over to always building + installing via
an (RPM) package in our build system, we need to always install
the dracut module.

Signed-off-by: Colin Walters <walters@verbum.org>

Author: cgwalters

Makefile

@@ -67,6 +67,9 @@ install:
 	if [ "$$ID" = "fedora" ] || [[ "$$ID_LIKE" == *"fedora"* ]]; then \
 	install -D -m 0755 -t $(DESTDIR)/$(prefix)/lib/bootc contrib/scripts/fedora-bootc-destructive-cleanup; \
 	fi
+	install -D -m 0644 -t $(DESTDIR)/usr/lib/systemd/system crates/initramfs/*.service
+	install -D -m 0755 target/release/bootc-initramfs-setup $(DESTDIR)/usr/lib/bootc/initramfs-setup
+	install -D -m 0755 -t $(DESTDIR)/usr/lib/dracut/modules.d/51bootc crates/initramfs/dracut/module-setup.sh
 
 # Run this to also take over the functionality of `ostree container` for example.
 # Only needed for OS/distros that have callers invoking `ostree container` and not bootc.
@@ -76,16 +79,6 @@ install-ostree-hooks:
 	  ln -sf ../../../bin/bootc $(DESTDIR)$(prefix)/libexec/libostree/ext/$$x; \
 	done
 
-# Install code in the initramfs, off by default except in builds from git main right now
-# Also the systemd unit hardcodes /usr so we give up the farce of supporting $(prefix)
-install-initramfs:
-	install -D -m 0644 -t $(DESTDIR)/usr/lib/systemd/system crates/initramfs/*.service
-	install -D -m 0755 target/release/bootc-initramfs-setup $(DESTDIR)/usr/lib/bootc/initramfs-setup
-
-# Install initramfs files, including dracut module
-install-initramfs-dracut: install-initramfs
-	install -D -m 0755 -t $(DESTDIR)/usr/lib/dracut/modules.d/51bootc crates/initramfs/dracut/module-setup.sh
-
 # Install the main binary, the ostree hooks, and the integration test suite.
 install-all: install install-ostree-hooks
 	install -D -m 0755 target/release/tests-integration $(DESTDIR)$(prefix)/bin/bootc-integration-tests

baseimage/dracut/usr/lib/dracut.conf.d/10-bootc-base.conf

@@ -3,5 +3,5 @@
 # (really hostonly=no should be the default if dracut detects that
 #  it's in a container or so)
 hostonly=no
-# We require ostree in the initramfs
-add_dracutmodules+=" ostree "
+# We require ostree and our own module in the initramfs
+add_dracutmodules+=" ostree bootc "

contrib/packaging/bootc.spec

@@ -125,7 +125,7 @@ export SYSTEM_REINSTALL_BOOTC_INSTALL_PODMAN_PATH=%{system_reinstall_bootc_insta
 # Container build: use cargo directly with cached dependencies
 export CARGO_HOME=/var/roothome/.cargo
 cargo build -j%{_smp_build_ncpus} --release %{?with_rhsm:--features rhsm} \
-    --bin=bootc --bin=system-reinstall-bootc \
+    --bin=bootc --bin=system-reinstall-bootc --bin=bootc-initramfs-setup \
     %{?with_tests:--bin tests-integration}
 make manpages
 %else
@@ -200,6 +200,7 @@ fi
 %{_bindir}/bootc
 %{_prefix}/lib/bootc/
 %{_prefix}/lib/systemd/system-generators/*
+%{_prefix}/lib/dracut/modules.d/51bootc/
 %if %{with ostree_ext}
 %{_prefix}/libexec/libostree/ext/*
 %endif

contrib/packaging/install-rpm-and-setup

@@ -10,10 +10,11 @@ rpm -Uvh --oldpackage "${RPM_DIR}"/*.rpm
 rm -f "${RPM_DIR}"/*.rpm
 
 # Regenerate initramfs if we have initramfs-setup
-if [ -x /usr/lib/bootc/initramfs-setup ]; then
-  kver=$(cd /usr/lib/modules && echo *)
-  env DRACUT_NO_XATTR=1 dracut -vf /usr/lib/modules/$kver/initramfs.img $kver
-fi
+kver=$(cd /usr/lib/modules && echo *)
+# DRACUT_NO_XATTR=1 is the default in newer base images, and
+# we have --add bootc here until the change to add the module in base
+# images lands.
+env DRACUT_NO_XATTR=1 dracut --add bootc -vf /usr/lib/modules/$kver/initramfs.img $kver
 
 # Only in this containerfile, inject a file which signifies
 # this comes from this development image. This can be used in

crates/initramfs/dracut/module-setup.sh

@@ -3,7 +3,9 @@ installkernel() {
     instmods erofs overlay
 }
 check() {
-    require_binaries /usr/lib/bootc/initramfs-setup || return 1
+    # We are never installed by default; see 10-bootc-base.conf
+    # for how base images can opt in.
+    return 255
 }
 depends() {
     return 0