Make Swift *_PORT_BASE configurable
DevStack's Swift port defaults changed in the Grizzly cycle, we need to
put it back to complete the upgrade without going through the ring build process.
Change-Id: I30c09839690ad7ba9bb3fdffa3f05aedfc47559e
diff --git a/lib/swift b/lib/swift
index 783ec75..d01f687 100644
--- a/lib/swift
+++ b/lib/swift
@@ -79,9 +79,9 @@
# Port bases used in port number calclution for the service "nodes"
# The specified port number will be used, the additinal ports calculated by
# base_port + node_num * 10
-OBJECT_PORT_BASE=6013
-CONTAINER_PORT_BASE=6011
-ACCOUNT_PORT_BASE=6012
+OBJECT_PORT_BASE=${OBJECT_PORT_BASE:-6013}
+CONTAINER_PORT_BASE=${CONTAINER_PORT_BASE:-6011}
+ACCOUNT_PORT_BASE=${ACCOUNT_PORT_BASE:-6012}
# Entry Points