pioneer-hash opened a new issue #317: URL: https://github.com/apache/apisix-ingress-controller/issues/317
### Issue description When I install INGRESS-Controller I start creating the route , unable to synchronize configuration. this is my ingress-log: 2021-03-29T10:35:41+08:00 error apisix/upstream.go:119 failed to get upstream from APISIX {"fullname": "default_web-huido_80", "url": "http://apisix-admin:9180/apisix/admin/upstreams/450a096f", "cluster": "", "error": "Get http://apisix-admin:9180/apisix/admin/upstreams/450a096f: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)"} 2021-03-29T10:35:41+08:00 error state/builder.go:176 failed to find upstream default_web-huido_80: Get http://apisix-admin:9180/apisix/admin/upstreams/450a096f: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers) 2021-03-29T10:36:44+08:00 error apisix/upstream.go:119 failed to get upstream from APISIX {"fullname": "default_web-huido_80", "url": "http://apisix-admin:9180/apisix/admin/upstreams/450a096f", "cluster": "", "error": "Get http://apisix-admin:9180/apisix/admin/upstreams/450a096f: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)"} 2021-03-29T10:36:44+08:00 error controller/endpoint.go:146 failed to get upstream {"upstream": "default_web-huido_80", "cluster": "name=; base_url=http://apisix-admin:9180/apisix/admin", "error": "Get http://apisix-admin:9180/apisix/admin/upstreams/450a096f: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)"} this is Request inside the container : curl http://apisix-admin:9180/apisix/admin/upstreams/450a096f curl: (6) Could not resolve host: apisix-admin; Unknown error ### Environment * your apisix-ingress-controller version (output of `apisix-ingress-controller version --long`); * your Kubernetes cluster version (output of `kubectl version`); * if you run apisix-ingress-controller in Bare-metal environment, also show your OS version (`uname -a`). -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org