docker build -t nospam1961/jenkins_agent_python .
docker build -t nospam1961/jenkins_agent_python .
docker tag nospam1961/jenkins_agent_python:latest nospam1961/jenkins_agent_python:latest
docker push nospam1961/jenkins_agent_python:latest
docker tag local-image:tagname new-repo:tagname
docker push new-repo:tagname