move debug print to balancer.lua

Author: neerfri

rootfs/etc/nginx/lua/balancer.lua

@@ -123,6 +123,7 @@ local function sync_backend(backend)
     balancers[backend.name] = nil
     return
   end
+  print("Syncing backend: ", backend.name, "with endpoints: ", cjson.encode(backend.endpoints))
 
   backend.endpoints = format_ipv6_endpoints(backend.endpoints)
 

rootfs/etc/nginx/lua/test/balancer_test.lua

@@ -453,7 +453,6 @@ describe("Balancer", function()
       implementation.new = function(self, backend) return mock_instance end
       local s = spy.on(implementation, "new")
       assert.has_no.errors(function() balancer.sync_backend(backend) end)
-      print(cjson.encode(balancer.get_balancer_by_upstream_name(backend.name)))
       assert.spy(s).was_not_called()
       assert.is_nil(balancer.get_balancer_by_upstream_name(backend.name))
     end)