Class: OsCtld::DistConfig::Gentoo

Inherits:
Base
  • Object
show all
Defined in:
lib/osctld/dist_config/gentoo.rb

Instance Attribute Summary

Attributes inherited from Base

#ct, #ctrc, #distribution, #version

Instance Method Summary collapse

Methods inherited from Base

#add_netif, #bin_path, distribution, #dns_resolvers, #initialize, #passwd, #stop, #unset_etc_hosts, #update_etc_hosts, #writable?

Methods included from Utils::SwitchUser

#ct_attach, #ct_syscmd

Constructor Details

This class inherits a constructor from OsCtld::DistConfig::Base

Instance Method Details

#add_init_script(name) ⇒ Object (protected) 



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# File 'lib/osctld/dist_config/gentoo.rb', line 81

def add_init_script(name)
  # Create init script
  begin
    File.lstat(script_path(name))

  rescue Errno::ENOENT
    File.symlink('/etc/init.d/net.lo', script_path(name))
  end

  # Enable the init script in the default runlevel
  begin
    File.lstat(rc_path(name))

  rescue Errno::ENOENT
    File.symlink(File.join('/etc/init.d', "net.#{name}"), rc_path(name))
  end
end

#del_init_script(name) ⇒ Object (protected) 



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# File 'lib/osctld/dist_config/gentoo.rb', line 99

def del_init_script(name)
  # Disable init script
  File.unlink(rc_path(name)) if File.symlink?(rc_path(name))

  # Remove init script
  File.unlink(script_path(name)) if File.symlink?(script_path(name))
end

#do_create_netif(netif) ⇒ Object (protected) 



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# File 'lib/osctld/dist_config/gentoo.rb', line 57

def do_create_netif(netif)
  return unless writable?(netifrc_conf(netif.name))

  # Create netifrc config
  OsCtld::ErbTemplate.render_to(
    File.join('dist_config/network/gentoo', netif.type.to_s),
    {netif: netif},
    netifrc_conf(netif.name)
  )

  # Create init script
  add_init_script(netif.name)
end

#do_remove_netif(name) ⇒ Object (protected) 



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# File 'lib/osctld/dist_config/gentoo.rb', line 71

def do_remove_netif(name)
  return unless writable?(netifrc_conf(name))

  # Remove init script
  del_init_script(name)

  # Remove netifrc config
  File.unlink(netifrc_conf(name)) if File.exist?(netifrc_conf(name))
end

#netifrc_conf(name) ⇒ Object (protected) 



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# File 'lib/osctld/dist_config/gentoo.rb', line 168

def netifrc_conf(name)
  File.join(ctrc.rootfs, 'etc/conf.d', "net.#{name}")
end

#network(_opts) ⇒ Object 



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# File 'lib/osctld/dist_config/gentoo.rb', line 30

def network(_opts)
  ct.netifs.each do |netif|
    do_create_netif(netif)
  end

  update_confd_net
end

#rc_path(name) ⇒ Object (protected) 



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# File 'lib/osctld/dist_config/gentoo.rb', line 176

def rc_path(name)
  File.join(ctrc.rootfs, 'etc/runlevels/default', "net.#{name}")
end

#remove_netif(opts) ⇒ Object

Remove init script



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# File 'lib/osctld/dist_config/gentoo.rb', line 39

def remove_netif(opts)
  do_remove_netif(opts[:netif].name)
  update_confd_net
end

#rename_netif(opts) ⇒ Object

Rename init script



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# File 'lib/osctld/dist_config/gentoo.rb', line 45

def rename_netif(opts)
  # Remove old network interface
  do_remove_netif(opts[:original_name])

  # Create the new interface
  do_create_netif(opts[:netif])

  # Update /etc/conf.d/net
  update_confd_net
end

#script_path(name) ⇒ Object (protected) 



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# File 'lib/osctld/dist_config/gentoo.rb', line 172

def script_path(name)
  File.join(ctrc.rootfs, 'etc/init.d', "net.#{name}")
end

#set_hostname(opts) ⇒ Object 



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# File 'lib/osctld/dist_config/gentoo.rb', line 7

def set_hostname(opts)
  # /etc/hostname
  writable?(File.join(ctrc.rootfs, 'etc', 'conf.d', 'hostname')) do |path|
    regenerate_file(path, 0644) do |f|
      f.puts('# Set to the hostname of this machine')
      f.puts("hostname=\"#{ct.hostname}\"")
    end
  end

  # Entry in /etc/hosts
  update_etc_hosts(old_hostname: opts[:original])

  # Apply hostname if the container is running
  if ct.running?
    begin
      ct_syscmd(ct, ['hostname', ct.hostname.local])

    rescue SystemCommandFailed => e
      log(:warn, ct, "Unable to apply hostname: #{e.message}")
    end
  end
end

#update_confd_net ⇒ Object (protected) 



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# File 'lib/osctld/dist_config/gentoo.rb', line 107

def update_confd_net
  config = File.join(ctrc.rootfs, 'etc/conf.d/net')
  return unless writable?(config)

  heading = "# BEGIN osctld generated content"
  banner = <<-END
#
# Do not edit lines within BEGIN and END. This section is generated by osctld
# from vpsAdminOS. You can move this block around and add your own configuration
# above and below this block. To stop osctld from manipulating this file, run
#
#   chmod u-w /etc/conf.d/net

  END
  ending = "\n# END osctld generated content"

  cfg = ct.netifs.map do |netif|
    ". #{File.join('/etc/conf.d', "net.#{netif.name}")}"
  end.join("\n")

  regenerate_file(config, 0644) do |new, old|
    if old.nil?
      # /etc/conf.d/net did not exist, create it
      new.puts(heading)
      new.puts(banner)
      new.puts(cfg)
      new.puts(ending)
      next
    end

    in_block = false
    done = false

    old.each_line do |line|
      if !done && line.strip.start_with?('# BEGIN osctld')
        in_block = true

      elsif in_block && !done && line.strip.start_with?('# END osctld')
        in_block = false
        done = true

        new.puts(heading)
        new.puts(banner)
        new.puts(cfg)
        new.puts(ending)

      elsif !in_block
        new.write(line)
      end
    end

    # Block not found
    unless done
      new.puts(heading)
      new.puts(banner)
      new.puts(cfg)
      new.puts(ending)
    end
  end
end