83 lines
2.1 KiB
Ruby
83 lines
2.1 KiB
Ruby
require 'vagrant/util/guest_hosts'
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module VagrantPlugins
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module GuestAlpine
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module Cap
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class ChangeHostName
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include Vagrant::Util::GuestHosts::Linux
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def self.change_host_name(machine, name)
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new(machine, name).change!
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end
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attr_reader :machine, :new_hostname
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def initialize(machine, new_hostname)
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@machine = machine
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@new_hostname = new_hostname
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end
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def change!
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update_etc_hosts
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return unless should_change?
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update_etc_hostname
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refresh_hostname_service
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update_mailname
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renew_dhcp
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end
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def should_change?
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new_hostname != current_hostname
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end
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def current_hostname
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@current_hostname ||= fetch_current_hostname
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end
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def fetch_current_hostname
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hostname = ''
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machine.communicate.sudo 'hostname -f' do |type, data|
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hostname = data.chomp if type == :stdout && hostname.empty?
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end
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hostname
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end
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def update_etc_hostname
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machine.communicate.sudo("echo '#{short_hostname}' > /etc/hostname")
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end
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# /etc/hosts should resemble:
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# 127.0.0.1 localhost
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# 127.0.1.1 host.fqdn.com host.fqdn host
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def update_etc_hosts
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comm = machine.communicate
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network_with_hostname = machine.config.vm.networks.map {|_, c| c if c[:hostname] }.compact[0]
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if network_with_hostname
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replace_host(comm, new_hostname, network_with_hostname[:ip])
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else
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add_hostname_to_loopback_interface(comm, new_hostname)
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end
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end
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def refresh_hostname_service
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machine.communicate.sudo('hostname -F /etc/hostname')
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end
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def update_mailname
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machine.communicate.sudo('hostname -f > /etc/mailname')
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end
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def renew_dhcp
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machine.communicate.sudo('ifdown -a; ifup -a; ifup eth0')
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end
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def short_hostname
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new_hostname.split('.').first
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end
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end
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end
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end
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end
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