implemented a stop build slave switch for running in a restartable systemd service

1 files changed, 14 insertions, 0 deletions

diff --git a/lib/load-configuration b/lib/load-configuration
index b6756c1..a6db76e 100755
--- a/lib/load-configuration
+++ b/lib/load-configuration
@@ -28,6 +28,20 @@ if [ "$(hostname)" = 'buildmaster.archlinux32.org' ]; then
   fi
 else
   i_am_the_master=false
+  
+  # abort early or kill switch for slave in service (gracefull stop)
+  # is active. Remove the kill switch and return non-zero exit state,
+  # effectively making systemd not restart the service
+  
+  if [ -f '/tmp/do-not-run-build-slave' ]; then
+    >&2 echo "Build slave stop switch is ative.. I'll stop now."
+    # When the buildslave is on "stop-now",
+    #   - systemd 'Restart' expects non-zero exit code
+    #   - interactively run commands SHOULD get exit code 1, too
+    #   - remove the switch file, so we can start the service again
+    [ -f '/tmp/do-not-run-build-slave' ] && rm '/tmp/do-not-run-build-slave'
+    exit 1
+  fi
 fi
 
 # dirty hack to get this stuff debugable from a bash