def describe(region, stack_name):
ec2_conn = create_ec2_connection(region)
print "Launcher", get_launcher_instance(ec2_conn, stack_name).ip_address
print "Manager", get_manager_instance(ec2_conn, stack_name).ip_address
print "Master", get_master_instance(ec2_conn, stack_name).ip_address
for instance in get_worker_instances(ec2_conn, stack_name):
print "Worker", instance.ip_address
def teardown(region, stack_name):
# terminate Hadoop cluster (prompts for confirmation)
ec2_conn = create_ec2_connection(region)
execute(run_director_terminate, hosts=[get_launcher_instance(ec2_conn, stack_name).ip_address])
# terminate launcher instance
terminate_launcher_instance(ec2_conn, stack_name)
# delete stack
cf_conn = create_cf_connection(region)
delete_stack(cf_conn, stack_name)
def login(region, stack_name, node):
print ("Logging into the {0} node...".format(node))
ec2_conn = create_ec2_connection(region)
if node == "master":
hosts = [get_master_instance(ec2_conn, stack_name).ip_address]
elif node == "manager":
hosts = [get_manager_instance(ec2_conn, stack_name).ip_address]
elif node == "launcher":
hosts = [get_launcher_instance(ec2_conn, stack_name).ip_address]
else:
raise EggoError('"{0}" is not a valid node type'.format(node))
execute(open_shell, hosts=hosts)
def terminate_launcher_instance(ec2_conn, stack_name):
launcher_instance = get_launcher_instance(ec2_conn, stack_name)
launcher_instance.terminate()
wait_for_instance_state(ec2_conn, launcher_instance, "terminated")
