Gitlab-ci and nexus

What files are needed to push or pull from gitlab ci to nexus?
I set it like this in .gitlab-ci.yml but it doesn’t seem to find my nexus

image

error pushing image “192.168.0.160:32001/bigdata-web:v2” to “docker://192.168.0.160:32001/bigdata-web:v2”: trying to reuse blob sha256:735956b91a18480450076b4e4a1f403cfe0c0f1dc7bf065341c2446fa045347d at destination: pinging container registry 192.168.0.160:32001: invalid status code from registry 400 (Bad Request)