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path: root/testing/robot/lib/FDSLibrary.py
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##############################################################################
# Copyright (c) 2016 Juraj Linkes (Cisco) and others.
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################

from keystoneauth1 import loading
from keystoneauth1 import session
from glanceclient import client as glance
from neutronclient.v2_0 import client as neutron
from novaclient import client as nova
from novaclient.exceptions import NotFound
from robot.api import logger
import time
import datetime
import os
import subprocess


class FDSLibrary():
    def __init__(self):
        auth_obj = loading.get_plugin_loader('password').load_from_options(auth_url=os.getenv('OS_AUTH_URL'),
                                                                           username=os.getenv('OS_USERNAME'),
                                                                           password=os.getenv('OS_PASSWORD'),
                                                                           project_id=os.getenv('OS_PROJECT_ID'))
        logger.debug("Initializing glance client.")
        self.glance_client = glance.Client('2', session=session.Session(auth=auth_obj))
        logger.debug("Initializing neutron client.")
        self.neutron_client = neutron.Client(username=os.getenv('OS_USERNAME'),
                                             password=os.getenv('OS_PASSWORD'),
                                             tenant_name=os.getenv('OS_TENANT_NAME'),
                                             auth_url=os.getenv('OS_AUTH_URL'))
        logger.debug("Initializing nova client.")
        self.nova_client = nova.Client('2', session=session.Session(auth=auth_obj))

    def check_flavor_exists(self, flavor):
        flavor_list_names = [x.name for x in self.nova_client.flavors.list()]
        return flavor in flavor_list_names

    def create_flavor(self, name, ram, vcpus="1", disk="0"):
        response = self.nova_client.flavors.create(name, ram, vcpus, disk)
        return response

    def check_image_exists(self, image):
        image_list_names = [x.name for x in self.glance_client.images.list()]
        return image in image_list_names

    def create_image(self, image_name, file_path, disk="qcow2",
                     container="bare", public="public", property="hw_mem_page_size=large"):
        image = self.glance_client.images.create(name=image_name,
                                                 visibility=public,
                                                 disk_format=disk,
                                                 container_format=container,
                                                 property=property)
        with open(file_path) as image_data:
            self.glance_client.images.upload(image.id, image_data)
        return image.id

    def create_network(self, name):
        body = {'network': {'name': name}}
        response = self.neutron_client.create_network(body=body)
        return response

    def create_subnet(self, name, network_id, cidr, dhcp=True, ip_version=4):
        body = {'subnet': {
            'name': name,
            'enable_dhcp': dhcp,
            'network_id': network_id,
            'ip_version': ip_version,
            'cidr': cidr
        }}
        response = self.neutron_client.create_subnet(body=body)
        return response

    def create_port(self, name, net_id, subnet_id, ip_address, security_groups=None):
        body = {'port': {
            'name': name,
            'network_id': net_id,
            'fixed_ips': [
                {
                    'subnet_id': subnet_id,
                    'ip_address': ip_address
                }
            ]
        }}
        if security_groups is not None:
            # this is a list
            body['port']['security_groups'] = security_groups
        response = self.neutron_client.create_port(body=body)
        return response

    def create_server(self, name, image, flavor, port_ids, security_groups=None, userdata=None):
        image = self.nova_client.images.find(name=image)
        flavor = self.nova_client.flavors.find(name=flavor)
        nics = [{'port-id': port_id} for port_id in port_ids]
        response = self.nova_client.servers.create(name=name, image=image.id, flavor=flavor.id,
                                                   security_groups=security_groups, nics=nics,
                                                   userdata=userdata)
        for key in dir(response):
            print key, getattr(response, key)
        return response

    def format_string(self, string, substitute):
        return string.format(substitute)

    def check_server_console(self, vm_id, string):
        vm_obj = self.nova_client.servers.get(vm_id)
        timeout = 0
        while timeout < 100:
            console_out = vm_obj.get_console_output()
            print "console output is: '{}'".format(console_out[-200:])
            failed_to_read_metadata = 'failed to read iid from metadata'
            if string in console_out:
                return True
            elif 'request failed' in console_out:
                print 'retrying'
            elif failed_to_read_metadata in console_out:
                print failed_to_read_metadata
                return False
            timeout += 1
            time.sleep(5)
        return False

    def create_security_group(self, name):
        body = {'security_group': {
            'name': name
        }}
        response = self.neutron_client.create_security_group(body=body)
        return response

    def create_security_rule(self, sg_id, dir, eth, desc=None, proto=None, port_min=None, port_max=None, r_sg_id=None, r_prefix=None):
        body = {'security_group_rule': {
            'security_group_id': sg_id,
            'ethertype': eth,
            'direction': dir
        }}
        if desc is not None:
            body['security_group_rule']['description'] = desc
        if proto is not None:
            body['security_group_rule']['protocol'] = proto
        if port_min is not None:
            body['security_group_rule']['port_range_min'] = port_min
        if port_max is not None:
            body['security_group_rule']['port_range_max'] = port_max
        if r_sg_id is not None:
            body['security_group_rule']['remote_group_id'] = r_sg_id
        if r_prefix is not None:
            body['security_group_rule']['remote_ip_prefix'] = r_prefix
        response = self.neutron_client.create_security_group_rule(body=body)
        return response

    def poll_server(self, vm_id, status, timeout=300):
        try:
            start = datetime.datetime.now()
            delta = datetime.timedelta(seconds=timeout)
            vm_obj = self.nova_client.servers.get(vm_id)
            current_state = getattr(vm_obj, 'OS-EXT-STS:vm_state', None)
            print "Found state '{}' while looking for state '{}'".format(current_state, status)
            while datetime.datetime.now() - start < delta and self._states_are_not_equal(current_state, status):
                time.sleep(1)
                vm_obj = self.nova_client.servers.get(vm_id)
                current_state = getattr(vm_obj, 'OS-EXT-STS:vm_state', None)
                print "Found state '{}' while looking for state '{}'".format(current_state, status)

            if self._states_are_not_equal(current_state, status):
                raise Exception("Vm with id '{}' is in state '{}' after timeout of {} seconds"
                                "".format(vm_id, getattr(vm_obj, 'OS-EXT-STS:vm_state'), timeout))
        except NotFound as e:
            if status is not None:
                raise e
            else:
                print "VM not found, which means it's been deleted"

    def _states_are_not_equal(self, current_state, expected_state):
        return current_state.lower() != expected_state

    def delete_server(self, vm_id):
        response = self.nova_client.servers.delete(vm_id)
        return response

    def delete_port(self, port_id):
        response = self.neutron_client.delete_port(port_id)
        return response

    def delete_net(self, net_id):
        response = self.neutron_client.delete_network(net_id)
        return response

    def delete_security_group(self, sg_id):
        response = self.neutron_client.delete_security_group(sg_id)
        return response

    def delete_security_rule(self, rule_id):
        response = self.neutron_client.delete_security_group_rule(rule_id)
        return response

    def ping_vm(self, ip_address):
        try:
            output = subprocess.check_output(['ping', '-c', '4', ip_address])
            print output
        except subprocess.CalledProcessError as e:
            print e.output
            raise Exception('Ping on ip {} failed'.format(ip_address))