Guest vm hostname duplicated in /etc/hosts

[devopsgroup-io]

Guest vm hostname duplicated in /etc/hosts

[pbitty]

Hi @kminder, the 127.0.0.1 ... line in the hosts file is changed by vagrant itself when it configures the guest's hostname. vagrant-hostmanager only touches the lines that it adds.

Cleaning the 127.0.0.1 line could be done, as you suggested, but at a first glance it looks to me like this is a very specific case of a more general issue.

At the moment, there are two guests OS types where vagrant updates /etc/hosts in a similar way: Redhat/Centos and Debian/Ubuntu. In the Debian case, it actually adds a 127.0.1.1 line - I'm not exactly sure why. I think if we were to edit only the 127.0.0.1 line, we would still have this issue in Debian/Ubuntu guests.

It seems to me that in general we would want hostmanager to remove any names in /etc/hosts that conflict with the ones it is to add.

I think this would involve some parsing etc/hosts to find these entries, and for each one, take out the conflicting names in that line while leaving the rest of the entry if there are other names, (skipping comment lines and so on).

What do you think?

Is this something you would be interested in contributing?

[pbitty]

Closing this. If you'd like to look into it further, feel free to reopen.