info about EC2 servers

get info about ec2 servers with boto:

import boto
from boto import ec2

def getEc2Hosts():
    ec2Hosts = set()
    AccessKey="""AccessKey"""
    SecretAccessKey="""SecretAccessKey"""
    # make connection

    conn = ec2.connect_to_region('eu-west-1', aws_access_key_id = AccessKey, aws_secret_access_key = SecretAccessKey, )

    # get servers status
    instanceStatuses = conn.get_all_instance_status()

    # get info about all servers
    allInst = conn.get_all_instances()

    

    # for our  - only ID, name and system status of the each server:
    instStatus = {i1.id: (i1.state_name, str(i1.system_status)) for i1 in instanceStatuses}

    for i in allInst:
        for g in i.groups:

            # only servers for foto
            if g.name == 'foto-servers':

                #we can use only running servers with OK status
                if instStatus[i.instances[0].id][0] == 'running' and instStatus[i.instances[0].id][1] == 'Status:ok':

                    # add public name to set
                    ec2Hosts.add(i.instances[0].public_dns_name)

    return ec2Hosts