Class: OsCtld::DistConfig::RedHat

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

Direct Known Subclasses

CentOS, Fedora

Instance Attribute Summary

Attributes inherited from Base

#ct, #distribution, #version

Instance Method Summary collapse

Methods inherited from Base

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

Methods included from Utils::SwitchUser

#ct_attach, #ct_control, #ct_exec, #ct_runscript, #ct_syscmd, #init_script, #unlink_file

Constructor Details

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

Instance Method Details

#do_create_netif(netif) ⇒ Object (protected) 



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# File 'lib/osctld/dist_config/redhat.rb', line 49

def do_create_netif(netif)
  tpl_base = 'dist_config/network/redhat'
  ct_base = File.join(ct.rootfs, 'etc', 'sysconfig')
  ifcfg = File.join(ct_base, 'network-scripts', "ifcfg-#{netif.name}")

  return unless writable?(ifcfg)

  OsCtld::ErbTemplate.render_to(
    File.join(tpl_base, netif.type.to_s, 'ifcfg'),
    {netif: netif},
    ifcfg
  )

  if netif.type == :routed
    netif.active_ip_versions.each do |ip_v|
      OsCtld::ErbTemplate.render_to(
        File.join(tpl_base, netif.type.to_s, "route_v#{ip_v}"),
        {netif: netif},
        File.join(
          ct_base,
          'network-scripts',
          "route#{ip_v == 6 ? '6' : ''}-#{netif.name}"
        )
      )
    end
  end
end

#do_remove_netif(name) ⇒ Object (protected) 



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# File 'lib/osctld/dist_config/redhat.rb', line 77

def do_remove_netif(name)
  base = File.join(ct.rootfs, 'etc', 'sysconfig', 'network-scripts')
  files = [
    "ifcfg-#{name}",
    "route-#{name}",
    "route6-#{name}"
  ]

  files.each do |f|
    path = File.join(base, f)
    next if !File.exist?(path) || !writable?(path)

    File.unlink(path)
  end
end

#network(_opts) ⇒ Object 



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# File 'lib/osctld/dist_config/redhat.rb', line 26

def network(_opts)
  set_params(
    File.join(ct.rootfs, 'etc/sysconfig/network'),
    {'NETWORKING' => 'yes'}
  )

  ct.netifs.each do |netif|
    do_create_netif(netif)
  end
end

#remove_netif(opts) ⇒ Object

Cleanup old config files



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# File 'lib/osctld/dist_config/redhat.rb', line 38

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

#rename_netif(opts) ⇒ Object

Rename config files



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# File 'lib/osctld/dist_config/redhat.rb', line 43

def rename_netif(opts)
  do_remove_netif(opts[:original_name])
  do_create_netif(opts[:netif])
end

#set_hostname(opts) ⇒ Object 



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# File 'lib/osctld/dist_config/redhat.rb', line 5

def set_hostname(opts)
  # /etc/sysconfig/network
  set_params(
    File.join(ct.rootfs, 'etc', 'sysconfig', 'network'),
    {'HOSTNAME' => ct.hostname.local}
  )

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

  # Apply hostname if the container is running
  if ct.running?
    begin
      ct_syscmd(ct, "hostname #{ct.hostname}")

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

#set_params(file, params) ⇒ Object (protected)

Parameters:

  • file (String)
  • params (Hash) 


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# File 'lib/osctld/dist_config/redhat.rb', line 95

def set_params(file, params)
  return unless writable?(file)

  regenerate_file(file, 0644) do |new, old|
    if old
      # Overwrite existing params and keep unchanged ones
      old.each_line do |line|
        param, value = params.detect { |k, v| /^#{k}=/ =~ line }

        if param
          new.puts("#{param}=\"#{value}\"")
          params.delete(param)

        else
          new.write(line)
        end
      end

      # Write new params
      params.each do |k, v|
        new.puts("#{k}=\"#{v}\"")
      end

    else
      # File did not exist, write all params
      params.each do |k, v|
        new.puts("#{k}=\"#{v}\"")
      end
    end
  end
end