NAME¶
VM::EC2::NetworkInterface - Object describing an Amazon Elastic Network
Interface (ENI)
SYNOPSIS¶
use VM::EC2;
my $ec2 = VM::EC2->new(...);
my $interface = $ec2->describe_network_interfaces('eni-12345');
print $interface->subNetId,"\n",
$interface->description,"\n",
$interface->vpcId,"\n",
$interface->status,"\n",
$interface->privateIpAddress,"\n",
$interface->macAddress,"\n";
DESCRIPTION¶
This object provides access to information about Amazon Elastic Network
Interface objects, which are used in conjunction with virtual private cloud
(VPC) instances to create multi-homed web servers, routers, firewalls, and so
forth.
Please see VM::EC2::Generic for methods shared by all VM::EC2 objects.
METHODS¶
These object methods are supported:
networkInterfaceId -- The ID of this ENI
subnetId -- The ID of the subnet this ENI belongs to
vpcId -- The ID of the VPC this ENI belongs to
ownerId -- Owner of the ENI
status -- ENI status, one of "available" or "in-use"
privateIpAddress -- Primary private IP address of the ENI
privateDnsName -- Primary private DNS name of the ENI
as a set of VM::EC2::Group objects.
attachment -- Information about the attachment of this ENI to
an instance, as a VM::EC2::NetworkInterface::Attachment
object.
association -- Information about the association of this ENI with
an elastic public IP address.
privateIpAddresses -- List of private IP addresses assigned to this ENI,
as a list of VM::EC2::NetworkInterface::PrivateIpAddress
objects.
availabilityZone -- Availability zone for this ENI as a VM::EC2::AvailabilityZone
object.
macAddress -- MAC address for this interface.
In addition, this object supports the following convenience methods:
resetAttributes() -- Return attributes to their default states. Currently only
sets the SourceDestCheck value to true.
description([$new_value]) -- Description of the ENI. Pass a single argument to set a new
description
sourceDestCheck([$boolean])-- Boolean value. If true, prevent this ENI from
forwarding packets between subnets. Value can optionally
be set
security_groups([@new_groups]) -- List of security groups this ENI belongs to. Pass a
list of new security groups to change this value.
delete_on_termination([$boolean])
-- Whether the deleteOnTermination flag is set for the current
attachment. Pass a boolean value to change the value.
Attaching to an instance¶
The following methods allow the interface to be attached to, and detached from,
instances.
$attachment_id = $interface->attach($instance_id => $device)¶
$attachment_id = $interfacee->attach(-instance_id => $id, -device_index => $device)¶
This method attaches the network interface an instance using the the indicated
device index. You can provide either an instance ID, or a VM::EC2::Instance
object. You may use an integer for -device_index, or use the strings
"eth0", "eth1" etc.
Required arguments:
-instance_id ID of the instance to attach to.
-device_index Network device number to use (e.g. 0 for eth0).
On success, this method returns the attachmentId of the new attachment (not a
VM::EC2::NetworkInterface::Attachment object, due to an AWS API
inconsistency).
$boolean = $interface->detach([$force])¶
This method detaches the network interface from whatever instance it is
currently attached to. If a true argument is provided, then the detachment
will be forced, even if the interface is in use.
On success, this method returns a true value.
Adding IP addresses¶
$result = $interface->assign_private_ip_addresses(@addresses)¶
$result = $interface->assign_private_ip_addresses(%args)¶
Assign one or more secondary private IP addresses to the network interface. You
can either set the addresses explicitly, or provide a count of secondary
addresses, and let Amazon select them for you.
In the list argument form, pass a list of desired IP addresses, or a count of
the number of addresses to select for you:
$interface->assign_private_ip_addresses(3); # three automatic addresses
$interface->assign_private_ip_addresses('192.168.0.10','192.168.0.11');
Required arguments:
-private_ip_address One or more secondary IP addresses, as a scalar string
-private_ip_addresses or array reference. (The two arguments are equivalent).
Optional arguments:
-allow_reassignment If true, allow assignment of an IP address is already in
use by another network interface or instance.
The following are valid arguments to -private_ip_address:
-private_ip_address => '192.168.0.12' # single address
-private_ip_address => ['192.168.0.12','192.168.0.13] # multiple addresses
-private_ip_address => 3 # autoselect three addresses
The mixed form of address, such as ['192.168.0.12','auto'] is not allowed in
this call.
On success, this method returns true.
$result = $interface->unassign_private_ip_addresses(@addresses)¶
$result = $interface->unassign_private_ip_addresses(-private_ip_address => \@addresses)¶
Unassign one or more secondary private IP addresses from the network interface.
In the list argument form, pass a list of desired IP addresses to unassign.
$interface->assign_private_ip_addresses('192.168.0.10','192.168.0.11');
In the named argument form, use:
-private_ip_address One or more secondary IP addresses, as a scalar string
-private_ip_addresses or array reference. (The two arguments are equivalent).
The following are valid arguments to -private_ip_address:
-private_ip_address => '192.168.0.12' # single address
-private_ip_address => ['192.168.0.12','192.168.0.13] # multiple addresses
On success, this method returns true.
STRING OVERLOADING¶
When used in a string context, this object will be interpolated as the
networkInterfaceId
SEE ALSO¶
VM::EC2 VM::EC2::Generic VM::EC2::NetworkInterface
VM::EC2::NetworkInterface::Attachment VM::EC2::NetworkInterface::Association
AUTHOR¶
Lincoln Stein <lincoln.stein@gmail.com>.
Copyright (c) 2012 Ontario Institute for Cancer Research
This package and its accompanying libraries is free software; you can
redistribute it and/or modify it under the terms of the GPL (either version 1,
or at your option, any later version) or the Artistic License 2.0. Refer to
LICENSE for the full license text. In addition, please see DISCLAIMER.txt for
disclaimers of warranty.