gistfile1.pyw

#!/usr/bin/env python

# Automated rollout script for Amazon EC2 + MM
# 2010/05/20 15:20:35
# Matt Behrens <askedrelic@gmail.com>

from boto.ec2.connection import EC2Connection
import paramiko
import time

def main():
    pass

class Automatron(object):
    def __init__(self):
        self.xmlrpc_port = '20500'
        self.aws_key = 'aws_key'
        self.aws_secret = 'aws_secret'
        self.conn = EC2Connection(self.aws_key, self.aws_secret)
        self.security_name = "autotest"
        self.reservation = None
        self.ips = None
        self.clients = []

    def setup_amazon(self):
        #only needs to happen once 
        #creae the group, authorize ssh access and xmlrpc access
        security_group = self.conn.get_all_security_groups(groupnames=[self.security_name])[0]
        #use your ip for more protection
        security_group.authorize(ip_protocol='tcp', from_port='22', to_port='22', cidr_ip='0.0.0.0/0')
        security_group.authorize(ip_protocol='tcp', from_port=xmlrpc_port, to_port=xmlrpc_port, cidr_ip='0.0.0.0/0')

    def spin_up(self, num_of_instances=1):
        #specific chosen ubuntu distro
        ami_id = "ami-2d4aa444"
        #get specific security group for the instances (assuming group already created)
        security_group = self.conn.get_all_security_groups(groupnames=[self.security_name])[0]

        ssh_key_name = 'mattkey'
        security_groups = [security_group]
        instance_size = 'm1.small'
        ami = self.conn.get_all_images([ami_id])[0]
        reservation = ami.run(min_count=num_of_instances,
                            max_count=num_of_instances,
                            key_name=ssh_key_name,
                            security_groups=security_groups,
                            instance_type=instance_size)

        while True:
            #check if instances are up
            if len([i.state for i in reservation.instances if i.update() == 'running']) >= num_of_instances:
                self.reservation = reservation
                self.ips = [i.public_dns_name for i in reservation.instances]
                return True
            time.sleep(10)
        return False

    def make_ssh_connections(self):
        if self.ips:
            for ip in self.ips:
                client = paramiko.SSHClient()
                #ignore that these are unknown hosts
                client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
                client.connect(ip, username='ubuntu', key_filename='publickey.pem')
                self.clients.append(client)
                print "created ssh client for %s" % ip
        else:
            return "No ips to connect to"

    def run_command(self, command):
        if self.clients:
            for client in self.clients:
                client.exec_command(command)
            return True
        else:
            return "No ssh clients"

    def run_command_with_output(self, command):
        if self.clients:
            for client in self.clients:
                output = []
                output.append(client.exec_command(command)[1].read())
            return output
        else:
            return "No ssh clients"

    def build_out(self):
        #install git
        self.run_command('sudo apt-get -y install git-core python-mechanize python-matplotlib')
        #clone repo
        #run project build script
        pass


    def launch_xmlrpc_server(self):
        self.run_command('python multi-mechanize.py default_project -p %s &' % self.xmlrpc_port)

    def kill_all_servers(self):
        if self.reservation:
            self.reservation.stop_all()
        else:
            return "No reservation"

if __name__ == main:
    main()