Merge pull request #67 from airbnb/kailiu.filelock

Quicly add file lock
airbnb · Feb 2, 2015 · b0faacf · b0faacf
2 parents e07dad7 + 0c9235a
commit b0faacf
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/lib/stemcell/templates/bootstrap.sh.erb b/lib/stemcell/templates/bootstrap.sh.erb
@@ -8,6 +8,11 @@
 # Martin Rhoads
 
 
+(
+echo 'Acquiring converge lock...'
+/usr/bin/flock -e 200
+echo 'Lock acquired!'
+
 set -o pipefail
 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
 
@@ -253,3 +258,4 @@ configure_chef_daemon
 
 
 echo "<%= last_bootstrap_line %>"
+) 200> /var/run/converge.lock