# vim: tabstop=4 shiftwidth=4 softtabstop=4
#
#    Licensed under the Apache License, Version 2.0 (the "License"); you may
#    not use this file except in compliance with the License. You may obtain
#    a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
#    License for the specific language governing permissions and limitations
#

import util
import verify
from nose.plugins.attrib import attr

import unittest
import os


@attr(speed='slow')
@attr(tag=['func', 'wordpress', '2instance', 'ebs', 'F17',
      'WordPress_2_Instances_With_EBS.template'])
class WordPress2InstancesWithEBS(unittest.TestCase):
    def setUp(self):
        template = 'WordPress_2_Instances_With_EBS.template'

        stack_paramstr = ';'.join(['InstanceType=m1.xlarge',
            'DBUsername=dbuser',
            'DBPassword=' + os.environ['OS_PASSWORD']])

        self.stack = util.Stack(self, template, 'F17', 'x86_64', 'cfntools',
            stack_paramstr)

        self.WikiDatabase = util.Instance(self, 'WikiDatabase')
        self.WebServer = util.Instance(self, 'WebServer')

    def tearDown(self):
        self.stack.cleanup()

    def test_instance(self):
        self.stack.create()

        self.WikiDatabase.wait_for_boot()
        self.WikiDatabase.check_cfntools()
        self.WikiDatabase.wait_for_provisioning()

        self.WebServer.wait_for_boot()
        self.WebServer.check_cfntools()
        self.WebServer.wait_for_provisioning()

        # ensure wordpress was installed
        self.assertTrue(self.WebServer.file_present
                        ('/etc/wordpress/wp-config.php'))
        print "Wordpress installation detected"

        # Verify the output URL parses as expected, ie check that
        # the wordpress installation is operational
        stack_url = self.stack.get_stack_output("WebsiteURL")
        print "Got stack output WebsiteURL=%s, verifying" % stack_url
        ver = verify.VerifyStack()
        self.assertTrue(ver.verify_wordpress(stack_url))

        # Check EBS volume is present and mounted
        stdin, stdout, sterr = self.WikiDatabase.exec_command(
                                'grep vdc /proc/mounts')
        result = stdout.readlines().pop().rstrip()
        self.assertTrue(len(result))
        print "Checking EBS volume is attached : %s" % result
        devname = result.split()[0]
        self.assertEqual(devname, '/dev/vdc1')
        mountpoint = result.split()[1]
        self.assertEqual(mountpoint, '/var/lib/mysql')