Add buildos monitor

1 files changed, 29 insertions, 13 deletions

diff --git a/bootstrap b/bootstrap
index d2c2be0..16b42b5 100755
--- a/bootstrap
+++ b/bootstrap
@@ -140,7 +140,7 @@ if [ "$stage" -eq "1" ]; then
   #
   #  - systemd-container seems to be required by host systemd-nspawn.
   #
-  pkgs="locales,klibc-utils,systemd-container"
+  pkgs="locales,klibc-utils,sudo,systemd-container"
 
   pkgs+=",linux-image-amd64,irqbalance,pciutils"
 
@@ -281,6 +281,12 @@ trap "exit 1" ERR
 
 set -x
 
+# Create the build user, /build home directory. Make a password-less sudo'er.
+#
+adduser --home /build --gecos "" --disabled-password build
+echo "build ALL=(ALL) NOPASSWD:ALL" >/etc/sudoers.d/build
+chmod 0440 /etc/sudoers.d/build
+
 # Clean up package cache.
 #
 apt-get clean
@@ -301,9 +307,9 @@ EOF
   # Note that when started via systemd-nspawn, we get /dev/console, not
   # /dev/tty0.
   #
-  write <<EOF /usr/lib/systemd/system/setup.service
+  write <<EOF /usr/lib/systemd/system/buildos-setup.service
 [Unit]
-Description=Setup Service
+Description=Build OS Setup
 After=default.target
 Conflicts=console-getty.service
 
@@ -324,8 +330,8 @@ WantedBy=default.target
 EOF
 
   sudo mkdir -p "$root/usr/lib/systemd/system/default.target.wants"
-  sudo ln -sf "$root/usr/lib/systemd/system/setup.service" \
-    "$root/usr/lib/systemd/system/default.target.wants/setup.service"
+  sudo ln -sf "$root/usr/lib/systemd/system/buildos-setup.service" \
+    "$root/usr/lib/systemd/system/default.target.wants/buildos-setup.service"
 
   nspawn --boot
 
@@ -342,16 +348,15 @@ if [ "$stage" -le "4" ]; then
   # Quite a few files/directories are only accessible by root (e.g., /root) so
   # we run under sudo.
   #
-  cd "$root"
-
   root_dirs="dev etc mnt root usr var"
   root_links="bin sbin lib lib32 lib64"
 
   info "generating buildos-rootfs.cpio.gz..."
+
+  cd "$root"
   sudo find $root_dirs $root_links -print0 | \
     sudo cpio --null -o -H newc | \
     gzip -9 > "$owd/buildos-rootfs.cpio.gz"
-
   cd "$owd"
 
   subvol_snapshot -r "$root" "$root-4"
@@ -361,14 +366,25 @@ fi
 #
 if [ "$stage" -le "5" ]; then
 
-  # @@ TODO: init location
+  # Install init and buildos monitor.
   #
-  sudo cp -f ./init "$root/"
+  sudo install -m 755 ./init "$root/"
+  sudo install -m 755 ./buildos "$root/usr/sbin/"
+  sudo install -m 755 ./buildos.service "$root/usr/lib/systemd/system/"
+  sudo ln -sf "$root/usr/lib/systemd/system/buildos.service" \
+    "$root/usr/lib/systemd/system/default.target.wants/buildos.service"
 
   info "generating buildos-init.cpio.gz..."
-  sudo echo 'init' | \
-    sudo cpio -o -H newc | \
+
+  cd "$root"
+  sudo cpio -o -H newc <<EOF | \
     gzip -9 > "$owd/buildos-init.cpio.gz"
+init
+usr/sbin/buildos
+usr/lib/systemd/system/buildos.service
+usr/lib/systemd/system/default.target.wants/buildos.service
+EOF
+  cd "$owd"
 
   cat buildos-rootfs.cpio.gz buildos-init.cpio.gz >buildos-initrd
 
@@ -396,4 +412,4 @@ sudo kvm \
   -device "scsi-hd,drive=disk1" \
   -drive  "if=none,id=disk1,file=/tmp/buildos-disk,format=raw" \
   -kernel buildos-image -initrd buildos-initrd \
-  -append "buildos.smtp_relay=build2.org buildos.admin_email=admin@build.org"
+  -append "buildos.smtp_relay=build2.org buildos.admin_email=admin@build2.org"