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##############################################################################
# Copyright (c) 2017 Ericsson AB and others.
# Author: Jose Lausuch (jose.lausuch@ericsson.com)
# 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 abc import abstractmethod
import os
from opnfv.utils import opnfv_logger as logger
from opnfv.utils import ssh_utils
logger = logger.Logger(__name__).getLogger()
class Deployment(object):
def __init__(self,
installer,
installer_ip,
scenario,
pod,
status,
openstack_version,
sdn_controller,
nodes=[]):
self.deployment_info = {
'installer': installer,
'installer_ip': installer_ip,
'scenario': scenario,
'pod': pod,
'status': status,
'openstack_version': openstack_version,
'sdn_controller': sdn_controller,
'nodes': nodes
}
def _get_openstack_release(self):
'''
Translates an openstack version into the release name
'''
os_versions = {
'12': 'Liberty',
'13': 'Mitaka',
'14': 'Newton',
'15': 'Ocata',
'16': 'Pike',
'17': 'Queens'
}
try:
version = self.deployment_info['openstack_version'].split('.')[0]
name = os_versions[version]
return name
except Exception as e:
return 'Unknown release'
def get_dict(self):
'''
Returns a dictionary will all the attributes
'''
return self.deployment_info
def __str__(self):
'''
Override of the str method
'''
s = '''
INSTALLER: {installer}
SCENARIO: {scenario}
INSTALLER IP: {installer_ip}
POD: {pod}
STATUS: {status}
OPENSTACK: {openstack_version} ({openstack_release})
SDN: {sdn_controller}
NODES:
'''.format(installer=self.deployment_info['installer'],
scenario=self.deployment_info['scenario'],
installer_ip=self.deployment_info['installer_ip'],
pod=self.deployment_info['pod'],
status=self.deployment_info['status'],
openstack_version=self.deployment_info[
'openstack_version'],
openstack_release=self._get_openstack_release(),
sdn_controller=self.deployment_info['sdn_controller'])
for node in self.deployment_info['nodes']:
s += '\t\t{node_object}\n'.format(node_object=node)
return s
class Node(object):
STATUS_OK = 'active'
STATUS_INACTIVE = 'inactive'
STATUS_OFFLINE = 'offline'
STATUS_FAILED = 'failed'
def __init__(self,
id,
ip,
name,
status,
roles,
ssh_client,
info={}):
self.id = id
self.ip = ip
self.name = name
self.status = status
self.ssh_client = ssh_client
self.roles = roles
self.info = info
def get_file(self, src, dest):
'''
SCP file from a node
'''
if self.status is not Node.STATUS_OK:
logger.info("The node %s is not active" % self.ip)
return 1
logger.info("Fetching %s from %s" % (src, self.ip))
get_file_result = ssh_utils.get_file(self.ssh_client, src, dest)
if get_file_result is None:
logger.error("SFTP failed to retrieve the file.")
else:
logger.info("Successfully copied %s:%s to %s" %
(self.ip, src, dest))
return get_file_result
def put_file(self, src, dest):
'''
SCP file to a node
'''
if self.status is not Node.STATUS_OK:
logger.info("The node %s is not active" % self.ip)
return 1
logger.info("Copying %s to %s" % (src, self.ip))
put_file_result = ssh_utils.put_file(self.ssh_client, src, dest)
if put_file_result is None:
logger.error("SFTP failed to retrieve the file.")
else:
logger.info("Successfully copied %s to %s:%s" %
(src, dest, self.ip))
return put_file_result
def run_cmd(self, cmd):
'''
Run command remotely on a node
'''
if self.status is not Node.STATUS_OK:
logger.info("The node %s is not active" % self.ip)
return 1
_, stdout, stderr = (self.ssh_client.exec_command(cmd))
error = stderr.readlines()
if len(error) > 0:
logger.error("error %s" % ''.join(error))
return error
output = ''.join(stdout.readlines()).rstrip()
return output
def get_dict(self):
'''
Returns a dictionary with all the attributes
'''
return {
'id': self.id,
'ip': self.ip,
'name': self.name,
'status': self.status,
'roles': self.roles,
'info': self.info
}
def get_attribute(self, attribute):
'''
Returns an attribute given the name
'''
return self.get_dict()[attribute]
def is_controller(self):
'''
Returns if the node is a controller
'''
if 'controller' in self.get_attribute('roles'):
return True
return False
def is_compute(self):
'''
Returns if the node is a compute
'''
if 'compute' in self.get_attribute('roles'):
return True
return False
def __str__(self):
return str(self.get_dict())
class DeploymentHandler(object):
EX_OK = os.EX_OK
EX_ERROR = os.EX_SOFTWARE
FUNCTION_NOT_IMPLEMENTED = "Function not implemented by adapter!"
def __init__(self,
installer,
installer_ip,
installer_user,
installer_pwd=None,
pkey_file=None):
self.installer = installer.lower()
self.installer_ip = installer_ip
self.installer_user = installer_user
self.installer_pwd = installer_pwd
self.pkey_file = pkey_file
if pkey_file is not None and not os.path.isfile(pkey_file):
raise Exception(
'The private key file %s does not exist!' % pkey_file)
self.installer_connection = ssh_utils.get_ssh_client(
hostname=self.installer_ip,
username=self.installer_user,
password=self.installer_pwd,
pkey_file=self.pkey_file)
if self.installer_connection:
self.installer_node = Node(id='',
ip=installer_ip,
name=installer,
status='active',
ssh_client=self.installer_connection,
roles='installer node')
else:
raise Exception(
'Cannot establish connection to the installer node!')
self.nodes = self.nodes()
@abstractmethod
def get_openstack_version(self):
'''
Returns a string of the openstack version (nova-compute)
'''
raise Exception(DeploymentHandler.FUNCTION_NOT_IMPLEMENTED)
@abstractmethod
def get_sdn_version(self):
'''
Returns a string of the sdn controller and its version, if exists
'''
raise Exception(DeploymentHandler.FUNCTION_NOT_IMPLEMENTED)
@abstractmethod
def get_deployment_status(self):
'''
Returns a string of the status of the deployment
'''
raise Exception(DeploymentHandler.FUNCTION_NOT_IMPLEMENTED)
@abstractmethod
def nodes(self, options=None):
'''
Generates a list of all the nodes in the deployment
'''
raise Exception(DeploymentHandler.FUNCTION_NOT_IMPLEMENTED)
def get_nodes(self, options=None):
'''
Returns the list of Node objects
'''
return self.nodes
def get_installer_node(self):
'''
Returns the installer node object
'''
return self.installer_node
def get_deployment_info(self):
'''
Returns an object of type Deployment
'''
return Deployment(installer=self.installer,
installer_ip=self.installer_ip,
scenario=os.getenv('DEPLOY_SCENARIO', 'Unknown'),
status=self.get_deployment_status(),
pod=os.getenv('NODE_NAME', 'Unknown'),
openstack_version=self.get_openstack_version(),
sdn_controller=self.get_sdn_version(),
nodes=self.nodes)
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