In ONAP Casablanca, when MSB is trying to contact AAI I am getting http 400 no host error message.

Here are the logs from msb-iag pod:

2019/02/08 11:23:33 [info] 44#44: *1898107 [lua] access_by_lua(msblocations.conf:189):2: d4e409112e923675a76ba0d2ab82d089:receive the request, client: 10.42.13.18, server: , request: "GET /aai/v11/external-system/esr-vnfm-list HTTP/1.1", host: "msb-iag"
2019/02/08 11:23:33 [info] 44#44: *1898107 [lua] logger.lua:23: d4e409112e923675a76ba0d2ab82d089 {"matched":"/aai/v11/external-system"} while logging request, client: 10.42.13.18, server: , request: "GET /aai/v11/external-system/esr-vnfm-list HTTP/1.1", upstream: "https://10.42.5.168:8447/aai/v11/external-system/esr-vnfm-list", host: "msb-iag"
10.42.13.18 - AAI [08/Feb/2019:11:23:33 +0000] d4e409112e923675a76ba0d2ab82d089 "GET /aai/v11/external-system/esr-vnfm-list HTTP/1.1" 400 request_processing_time:0.041 upstream_response_time:0.011 "" "curl/7.35.0" ""
2019/02/08 11:23:33 [info] 44#44: *1898107 client 10.42.13.18 closed keepalive connection
2019/02/08 11:23:35 [info] 42#42: *1898110 client closed connection while waiting for request, client: 10.42.0.1, server: 0.0.0.0:80

I am using nexus3.onap.org:10001/onap/msb/msb_apigateway:1.2.1 Image