vaguerent/plugins/guests/suse/cap/change_host_name.rb
Christoph Moench-Tegeder 6f6e58f4ae explicitly test the hostname we'll be setting
getent queries the system resolver for the hostname - but it's not
the resolver we're interested in. In fact, the hostname-to-be-set
may already exist in DNS (becuase DNS really is a nifty thing and
can do a lot of things which are not that possible with /etc/hosts
alone), in which case getent will "not fail" and vagrant will believe
the hostname had already been set.
Instead, query hostnamectl for the "static" hostname - that's the
one we will be setting, so we're ok IFF hostnamectl returns exactly
what we would be setting.
2019-11-01 15:41:04 +01:00

24 lines
666 B
Ruby

module VagrantPlugins
module GuestSUSE
module Cap
class ChangeHostName
def self.change_host_name(machine, name)
comm = machine.communicate
basename = name.split(".", 2)[0]
if !comm.test('test "$(hostnamectl --static status)" = "#{basename}"', sudo: false)
comm.sudo <<-EOH.gsub(/^ {14}/, '')
hostnamectl set-hostname '#{basename}'
# Prepend ourselves to /etc/hosts
grep -w '#{name}' /etc/hosts || {
sed -i'' '1i 127.0.0.1\\t#{name}\\t#{basename}' /etc/hosts
}
EOH
end
end
end
end
end
end