Compare the environment so we can detect a change in password

test/175_stop_start_test.sh

@@ -13,6 +13,15 @@ assert_raises "weave_on $HOST1 launch-router --log-level=debug" 1
 weave_on $HOST1 stop-router
 ID2=$(weave_on $HOST1 launch-router --log-level=debug)
 assert "[ $ID != $ID2 ]"
+
+# Stop then start with different password
+weave_on $HOST1 stop-router
+ID3=$(weave_on $HOST1 launch-router --password=xyzzy)
+assert "[ $ID2 != $ID3 ]"
+# Stop then start with same password
+weave_on $HOST1 stop-router
+assert "weave_on $HOST1 launch-router --password=xyzzy" "$ID3"
+
 # Fails on bad argument
 assert_raises "weave_on $HOST1 launch-plugin --foo" 1
 # Fails again on bad argument, although there is a dead container

weave

@@ -937,10 +937,10 @@ detach() {
 ######################################################################
 
 args_match() {
-    prev_args="$(docker inspect -f '{{.Args}}' $1)"
+    prev_args="$(docker inspect -f '{{.Args}} {{.Config.Env}}' $1)"
     shift
     dummy_container=$(docker create "$@" 2>/dev/null) || return 1
-    dummy_args="$(docker inspect -f '{{.Args}}' $dummy_container)"
+    dummy_args="$(docker inspect -f '{{.Args}} {{.Config.Env}}' $dummy_container)"
     docker rm $dummy_container >/dev/null
     [ "$prev_args"  = "$dummy_args" ]
 }