Building a Docker image threw up this error:
$ docker build -f Dockerfile -t foobar Sending build context to Docker daemon 1.115MB Step 1/14 : FROM blah.com:5005/foobar:10.05 Get https://blah.com:5005/foobar:10.05: unauthorized: HTTP Basic: Access denied
This usually means that your Docker does not have authorization to the registry you are referring to. The registry is usually the domain part of the URL above. You need to use the
docker login command to successfully login to the registry, so that docker can save the credentials for you so that future docker pull from the registry will work.
For the Docker registry URL used above, the command would be:
$ docker login blah.com
Tried with: Ubuntu 18.04