[workspace] $ docker build -t localhost:5000/cnaf_trunk/data:978

ckan-docker/docker/data
Sending build context to Docker daemon  2.56 kB

Sending build context to Docker daemon
Step 0 : FROM phusion/baseimage:0.9.17
Pulling repository phusion/baseimage
time="2016-09-29T11:34:05+02:00" level="info" msg="Could not reach any registry endpoint"
[workspace] $ docker push localhost:5000/cnaf_trunk/data:978
The push refers to a repository [localhost:5000/cnaf_trunk/data] (len: 1)
time="2016-09-29T11:34:07+02:00" level="fatal" msg="No images found for the requested repository / tag"
Build step 'Docker Build and Publish' marked build as failure
Sending e-mails to: cnaf.opendata.dev@sopra.com
ERROR: 530 5.7.1 Client was not authenticated