While browsing openstack-browser for a role at https://openstack-browser.toolforge.org/puppetclass/role::ci::slave::labs::docker I have encountered a couple no more existing instances:
integration-slave-docker-c2-m4-d40-1004.integration.eqiad.wmflab*
integration-slave-docker-c2-m4-d40-1005.integration.eqiad.wmflab*
They have been created in October 2017 (SAL search ) and have long been deleted.
The instance do not show up on the project view https://openstack-browser.toolforge.org/project/integration
Not sure why there is * at the end of the hostname, I thought it might be due to a Puppet prefix set in Horizon but there are no prefix defined.