Class: DevLXC::Server

Inherits:
Object
  • Object
show all
Defined in:
lib/dev-lxc/server.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, ipaddress, additional_fqdn, mounts, ssh_keys) ⇒ Server

Returns a new instance of Server.



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# File 'lib/dev-lxc/server.rb', line 8

def initialize(name, ipaddress, additional_fqdn, mounts, ssh_keys)
  @container = DevLXC::Container.new(name)
  @ipaddress = ipaddress
  @additional_fqdn = additional_fqdn
  @mounts = mounts
  @ssh_keys = ssh_keys
end

Instance Attribute Details

#container ⇒ Object (readonly)

Returns the value of attribute container.



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# File 'lib/dev-lxc/server.rb', line 6

def container
  @container
end

Instance Method Details

#deregister_from_dnsmasq(hwaddr) ⇒ Object 



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# File 'lib/dev-lxc/server.rb', line 153

def deregister_from_dnsmasq(hwaddr)
  if @ipaddress
    DevLXC.search_file_delete_line("/etc/lxc/addn-hosts.conf", /^#{@ipaddress}\s/)
    DevLXC.search_file_delete_line("/etc/lxc/dhcp-hosts.conf", /,#{@ipaddress}$/)
  end
  unless hwaddr.nil?
    DevLXC.search_file_delete_line("/etc/lxc/dhcp-hosts.conf", /^#{hwaddr}/)
  end
  DevLXC.reload_dnsmasq
end

#destroy ⇒ Object 



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# File 'lib/dev-lxc/server.rb', line 144

def destroy
  if @container.defined?
    hwaddr = @container.config_item("lxc.network.0.hwaddr")
    @container.snapshot_list.each { |snapshot| @container.snapshot_destroy(snapshot.first) }
  end
  @container.destroy
  deregister_from_dnsmasq(hwaddr)
end

#install_package(package_path) ⇒ Object 



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# File 'lib/dev-lxc/server.rb', line 33

def install_package(package_path)
  @container.install_package(package_path)
end

#name ⇒ Object 



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# File 'lib/dev-lxc/server.rb', line 16

def name
  @container.name
end

#run_command(command) ⇒ Object 



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# File 'lib/dev-lxc/server.rb', line 24

def run_command(command)
  if @container.running?
    puts "Running '#{command}' in '#{@container.name}'"
    @container.run_command(command)
  else
    puts "'#{@container.name}' is not running"
  end
end

#snapshot(comment = nil) ⇒ Object 



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# File 'lib/dev-lxc/server.rb', line 54

def snapshot(comment=nil)
  unless @container.defined?
    puts "WARNING: Skipping snapshot of '#{@container.name}' because it does not exist"
    return
  end
  if @container.running?
    puts "WARNING: Skipping snapshot of '#{@container.name}' because it is running"
    return
  end
  puts "Creating snapshot of container '#{@container.name}'"
  snapname = @container.snapshot
  unless comment.nil?
    snapshot = @container.snapshot_list.select { |sn| sn.first == snapname }
    snapshot_comment_file = snapshot.flatten[1]
    IO.write(snapshot_comment_file, comment) unless snapshot_comment_file.nil?
  end
end

#snapshot_destroy(snapname = nil) ⇒ Object 



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# File 'lib/dev-lxc/server.rb', line 72

def snapshot_destroy(snapname=nil)
  unless @container.defined?
    puts "Skipping container '#{@container.name}' because it does not exist"
    return
  end
  if snapname == "ALL"
    if @container.snapshot_list.empty?
      puts "Container '#{@container.name}' does not have any snapshots"
    else
      @container.snapshot_list.each do |snapshot|
        puts "Destroying snapshot '#{snapshot.first}' of container '#{@container.name}'"
        @container.snapshot_destroy(snapshot.first)
      end
    end
  elsif snapname == "LAST"
    if @container.snapshot_list.empty?
      puts "Container '#{@container.name}' does not have any snapshots"
    else
      snapname = @container.snapshot_list.last.first
      puts "Destroying snapshot '#{snapname}' of container '#{@container.name}'"
      @container.snapshot_destroy(snapname)
    end
  else
    snapshot = @container.snapshot_list.select { |sn| sn.first == snapname }
    if snapshot.flatten.empty?
      puts "Container '#{@container.name}' does not have a '#{snapname}' snapshot"
    else
      puts "Destroying snapshot '#{snapname}' of container '#{@container.name}'"
      @container.snapshot_destroy(snapname)
    end
  end
end

#snapshot_list ⇒ Object 



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# File 'lib/dev-lxc/server.rb', line 105

def snapshot_list
  snapshots = Array.new
  return snapshots unless @container.defined?
  @container.snapshot_list.each do |snapshot|
    (snapname, snap_comment_file, snaptime) = snapshot
    snap_comment = IO.read(snap_comment_file).chomp if File.exist?(snap_comment_file)
    snapshots << [snapname, snaptime, snap_comment]
  end
  snapshots
end

#snapshot_restore(snapname = nil) ⇒ Object 



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# File 'lib/dev-lxc/server.rb', line 116

def snapshot_restore(snapname=nil)
  unless @container.defined?
    puts "WARNING: Skipping container '#{@container.name}' because it does not exist"
    return
  end
  if @container.running?
    puts "WARNING: Skipping container '#{@container.name}' because it is running"
    return
  end
  if snapname == "LAST"
    if @container.snapshot_list.empty?
      puts "WARNING: Skipping container '#{@container.name}' because it does not have any snapshots"
    else
      snapname = @container.snapshot_list.last.first
      puts "Restoring snapshot '#{snapname}' of container '#{@container.name}'"
      @container.snapshot_restore(snapname)
    end
  else
    snapshot = @container.snapshot_list.select { |sn| sn.first == snapname }
    if snapshot.flatten.empty?
      puts "WARNING: Skipping container '#{@container.name}' because it does not have a '#{snapname}' snapshot"
    else
      puts "Restoring snapshot '#{snapname}' of container '#{@container.name}'"
      @container.snapshot_restore(snapname)
    end
  end
end

#start ⇒ Object 



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# File 'lib/dev-lxc/server.rb', line 37

def start
  hwaddr = @container.config_item("lxc.network.0.hwaddr")
  if @ipaddress
    DevLXC.assign_ip_address(@ipaddress, @container.name, hwaddr)
    DevLXC.create_dns_record(@additional_fqdn, @container.name, @ipaddress) unless @additional_fqdn.nil?
  end
  @container.sync_mounts(@mounts)
  @container.start
  @container.sync_ssh_keys(@ssh_keys)
end

#status ⇒ Object 



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# File 'lib/dev-lxc/server.rb', line 20

def status
  @container.status
end

#stop ⇒ Object 



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# File 'lib/dev-lxc/server.rb', line 48

def stop
  hwaddr = @container.config_item("lxc.network.0.hwaddr") if @container.defined?
  @container.stop
  deregister_from_dnsmasq(hwaddr)
end