Re: [boto-users] Is it possible to get the addresses for the instances in a load balancer?

[Mitchell Garnaat]

Hi -

I replied to the stackoverflow thread, too.  The problem is that you create a RegionInfo that includes the endpoint for ELB and then you pass that RegionInfo when you create the EC2 connection object.

An easier way (perhaps) might be something like this:

import boto.ec2

import boto.ec2.elb

elb_connection = boto.ec2.elb.connect_to_region('ap-southeast-1')

ec2_connection = boto.ec2.connect_to_region('ap-southeast-1')

Then you don't have to mess around with RegionInfo.

Mitch

On Sat, Jun 9, 2012 at 5:53 AM, Kit Sunde <kits...@gmail.com> wrote:

I'm using boto 2.4.1 and I'm attempting to grab all the addresses for the instances in a load balancer and I've ended up with this:

import boto

from boto import ec2

from boto.regioninfo import RegionInfo

ACCESS_KEY_ID = '*****'

SECRET_ACCESS_KEY = '********'

reg = RegionInfo(

    name='ap-southeast-1', 

    endpoint='elasticloadbalancing.ap-southeast-1.amazonaws.com')

conn = boto.connect_elb(

    aws_access_key_id=ACCESS_KEY_ID, 

    aws_secret_access_key=SECRET_ACCESS_KEY, 

    region=reg)

ec2_connection = boto.ec2.connection.EC2Connection(

    aws_access_key_id=ACCESS_KEY, 

    aws_secret_access_key=SECRET_ACCESS_KEY,

    region=reg)

instances = [ instance.id for instance in conn.get_all_load_balancers()[3].instances ] 

# instances is now [u'i-62448d36'], so far so good.

ec2_connection.get_all_instances(instances)

But I'm now getting back an error suggesting that AWS isn't liking get_all_instances:

<ErrorResponse xmlns="http://webservices.amazon.com/AWSFault/2005-15-09">

  <Error>

    <Type>Sender</Type>

    <Code>InvalidAction</Code>

    <Message>Could not find operation DescribeInstances for version 2012-03-01</Message>

  </Error>

  <RequestId>c6aab70d-b22b-11e1-a990-a747bbde9f63</RequestId>

</ErrorResponse>

Any way I can get around that?

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