vaguerent/plugins/guests/redhat/cap/change_host_name.rb
sophia b6aebeacae Use '-r' xargs argument
This will pervent running sed if there are no results
passed to xargs
2020-09-16 10:36:55 -05:00

57 lines
2.0 KiB
Ruby

require 'vagrant/util/guest_hosts'
module VagrantPlugins
module GuestRedHat
module Cap
class ChangeHostName
extend Vagrant::Util::GuestInspection::Linux
extend Vagrant::Util::GuestHosts::Linux
def self.change_host_name(machine, name)
comm = machine.communicate
if !comm.test("hostname -f | grep '^#{name}$'", sudo: false)
basename = name.split('.', 2)[0]
comm.sudo <<-EOH.gsub(/^ {14}/, '')
# Update sysconfig
if [ -f /etc/sysconfig/network ]; then
sed -i 's/\\(HOSTNAME=\\).*/\\1#{name}/' /etc/sysconfig/network
fi
# Update DNS
find /etc/sysconfig/network-scripts -maxdepth 1 -type f -name 'ifcfg-*' | xargs -r sed -i 's/\\(DHCP_HOSTNAME=\\).*/\\1\"#{basename}\"/'
# Set the hostname - use hostnamectl if available
echo '#{name}' > /etc/hostname
EOH
if hostnamectl?(comm)
comm.sudo("hostnamectl set-hostname --static '#{name}' ; " \
"hostnamectl set-hostname --transient '#{name}'")
else
comm.sudo("hostname -F /etc/hostname")
end
restart_command = "service network restart"
if systemd?(comm)
if systemd_networkd?(comm)
restart_command = "systemctl restart systemd-networkd.service"
elsif systemd_controlled?(comm, "NetworkManager.service")
restart_command = "systemctl restart NetworkManager.service"
end
end
comm.sudo(restart_command)
end
network_with_hostname = machine.config.vm.networks.map {|_, c| c if c[:hostname] }.compact[0]
if network_with_hostname
replace_host(comm, name, network_with_hostname[:ip])
else
add_hostname_to_loopback_interface(comm, name)
end
end
end
end
end
end