vRouter defer configure: Resolve merge conflicts

Author: Ronald van Zantvoort

systemvm/patches/debian/config/opt/cloud/bin/update_config.py

@@ -52,15 +52,16 @@ def process(do_merge=True):
     qf.setFile(sys.argv[1])
     qf.do_merge = do_merge
     qf.load(None)
-
     return qf
 
 
 def process_file():
     print "[INFO] process_file"
     qf = process()
-    # Converge
-    finish_config()
+    # These can be safely deferred, dramatically speeding up loading times
+    if not (os.environ.get('DEFER_CONFIG', False) and sys.argv[1] in ('vm_dhcp_entry.json', 'vm_metadata.json')):
+        # Converge
+        finish_config()
 
 
 def process_vmpasswd():

systemvm/patches/debian/config/opt/cloud/bin/vr_cfg.sh

@@ -32,6 +32,7 @@ while getopts 'c:' OPTION; do
         c) cfg="$OPTARG" ;;
 esac; done
 
+export DEFER_CONFIG=true
 while read line; do
     #comment
     if [[ $line == \#* ]]; then
@@ -78,6 +79,10 @@ done < $cfg
 # archive the configuration file
 mv $cfg /var/cache/cloud/processed/
 
+unset DEFER_CONFIG
+# trigger finish_config()
+/opt/cloud/bin/configure.py
+
 # Flush kernel conntrack table
 log_it "VR config: Flushing conntrack table"
 conntrackd -d 2> /dev/null