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##############################################################################
# Copyright 2018 EuropeanSoftwareMarketingLtd.
# ===================================================================
# Licensed under the ApacheLicense, Version2.0 (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
#
# 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 under
# the License
##############################################################################
# vnftest comment: this is a modified copy of
# yardstick/benchmark/core/plugin.py
""" Handler for vnftest command 'plugin' """
from __future__ import print_function
from __future__ import absolute_import
import os
import sys
import time
import logging
import pkg_resources
import vnftest.ssh as ssh
from vnftest.common.task_template import TaskTemplate
from vnftest.common.yaml_loader import yaml_load
LOG = logging.getLogger(__name__)
class Plugin(object):
"""Plugin commands.
Set of commands to manage plugins.
"""
def install(self, args):
"""Install a plugin."""
total_start_time = time.time()
parser = PluginParser(args.input_file[0])
plugins, deployment = parser.parse_plugin()
plugin_name = plugins.get("name")
LOG.info("Installing plugin: %s", plugin_name)
LOG.debug("Executing _install_setup()")
self._install_setup(plugin_name, deployment)
LOG.debug("Executing _run()")
self._run(plugin_name)
total_end_time = time.time()
LOG.info("Total finished in %d secs",
total_end_time - total_start_time)
LOG.info("Plugin %s Done, exiting", plugin_name)
def remove(self, args):
"""Remove a plugin."""
total_start_time = time.time()
parser = PluginParser(args.input_file[0])
plugins, deployment = parser.parse_plugin()
plugin_name = plugins.get("name")
print("Removing plugin: %s" % plugin_name)
LOG.info("Executing _remove_setup()")
self._remove_setup(plugin_name, deployment)
LOG.info("Executing _run()")
self._run(plugin_name)
total_end_time = time.time()
LOG.info("total finished in %d secs",
total_end_time - total_start_time)
print("Done, exiting")
def _install_setup(self, plugin_name, deployment):
"""Deployment environment setup"""
target_script = plugin_name + ".bash"
self.script = pkg_resources.resource_filename(
'vnftest.resources', 'scripts/install/' + target_script)
deployment_ip = deployment.get("ip", None)
if deployment_ip == "local":
self.client = ssh.SSH.from_node(deployment, overrides={
# host can't be None, fail if no JUMP_HOST_IP
'ip': os.environ["JUMP_HOST_IP"],
})
else:
self.client = ssh.SSH.from_node(deployment)
self.client.wait(timeout=600)
# copy script to host
remotepath = '~/%s.sh' % plugin_name
LOG.info("copying script to host: %s", remotepath)
self.client._put_file_shell(self.script, remotepath)
def _remove_setup(self, plugin_name, deployment):
"""Deployment environment setup"""
target_script = plugin_name + ".bash"
self.script = pkg_resources.resource_filename(
'vnftest.resources', 'scripts/remove/' + target_script)
deployment_ip = deployment.get("ip", None)
if deployment_ip == "local":
self.client = ssh.SSH.from_node(deployment, overrides={
# host can't be None, fail if no JUMP_HOST_IP
'ip': os.environ["JUMP_HOST_IP"],
})
else:
self.client = ssh.SSH.from_node(deployment)
self.client.wait(timeout=600)
# copy script to host
remotepath = '~/%s.sh' % plugin_name
LOG.info("copying script to host: %s", remotepath)
self.client._put_file_shell(self.script, remotepath)
def _run(self, plugin_name):
"""Run installation script """
cmd = "sudo bash %s" % plugin_name + ".sh"
LOG.info("Executing command: %s", cmd)
self.client.execute(cmd)
class PluginParser(object):
"""Parser for plugin configration files in yaml format"""
def __init__(self, path):
self.path = path
def parse_plugin(self):
"""parses the plugin file and return a plugins instance
and a deployment instance
"""
print("Parsing plugin config:", self.path)
try:
kw = {}
with open(self.path) as f:
try:
input_plugin = f.read()
rendered_plugin = TaskTemplate.render(input_plugin, **kw)
except Exception as e:
print("Failed to render template:\n%(plugin)s\n%(err)s\n"
% {"plugin": input_plugin, "err": e})
raise e
print("Input plugin is:\n%s\n" % rendered_plugin)
cfg = yaml_load(rendered_plugin)
except IOError as ioerror:
sys.exit(ioerror)
self._check_schema(cfg["schema"], "plugin")
return cfg["plugins"], cfg["deployment"]
def _check_schema(self, cfg_schema, schema_type):
"""Check if configration file is using the correct schema type"""
if cfg_schema != "vnftest:" + schema_type + ":0.1":
sys.exit("error: file %s has unknown schema %s" % (self.path,
cfg_schema))
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