Fix IP address print

Fix docker repo
Fix local build tasks

.drone.yml

@@ -14,7 +14,7 @@ pipeline:
       - go build
   publish:
     image: plugins/docker
-    repo: deadbeef.codes:5000/mandelmap
+    repo: deadbeef.codes:5000/mandelmapper
     registry: deadbeef.codes:5000
     auto_tag: true
     auto_tag_suffix: ${DRONE_COMMIT}