226 lines
7.7 KiB
Python
226 lines
7.7 KiB
Python
# Copyright 2013: Mirantis Inc.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import copy
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import errno
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import inspect
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import json
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import os
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import shutil
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import subprocess
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import tempfile
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from six.moves import configparser
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from rally.utils import encodeutils
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class RallyCliError(Exception):
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def __init__(self, cmd, code, output):
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self.command = cmd
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self.code = code
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self.output = encodeutils.safe_decode(output)
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self.msg = "Command: %s Code: %d Output: %s\n" % (self.command,
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self.code,
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self.output)
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def __str__(self):
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return self.msg
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def __unicode__(self):
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return self.msg
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class JsonTempFile(object):
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def __init__(self, config):
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config_file = tempfile.NamedTemporaryFile(delete=False)
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config_file.write(encodeutils.safe_encode(json.dumps(config)))
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config_file.close()
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self.filename = config_file.name
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def __del__(self):
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os.unlink(self.filename)
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class TaskConfig(JsonTempFile):
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pass
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class Rally(object):
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"""Create and represent separate rally installation.
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Usage:
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rally = Rally()
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rally("deployment", "create", "--name", "Some Deployment Name")
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output = rally("deployment list")
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"""
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_DEPLOYMENT_CREATE_ARGS = ""
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def __init__(self, force_new_db=False, plugin_path=None):
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# NOTE(sskripnick): we should change home dir to avoid races
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# and do not touch any user files in ~/.rally
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self.tmp_dir = tempfile.mkdtemp()
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self.env = copy.deepcopy(os.environ)
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self.env["HOME"] = self.tmp_dir
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self.config_filename = None
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self.method_name = None
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self.class_name = None
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caller_frame = inspect.currentframe().f_back
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if caller_frame.f_code.co_name == "__call__":
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caller_frame = caller_frame.f_back
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self.method_name = caller_frame.f_code.co_name
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if self.method_name == "setUp":
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raise Exception("No rally instance should be generated in "
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"setUp method")
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test_object = caller_frame.f_locals["self"]
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self.class_name = test_object.__class__.__name__
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if force_new_db or ("RCI_KEEP_DB" not in os.environ):
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config_filename = os.path.join(self.tmp_dir, "conf")
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config = configparser.RawConfigParser()
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config.add_section("database")
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config.set("database", "connection",
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"sqlite:///%s/db" % self.tmp_dir)
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with open(config_filename, "w") as conf:
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config.write(conf)
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self.args = ["rally", "--config-file", config_filename]
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subprocess.call(["rally", "--config-file", config_filename,
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"db", "recreate"], env=self.env)
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self.config_filename = config_filename
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else:
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self.args = ["rally"]
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subprocess.call(["rally", "db", "recreate"], env=self.env)
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if plugin_path:
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self.args.extend(["--plugin-paths", os.path.abspath(plugin_path)])
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self.reports_root = os.environ.get("REPORTS_ROOT",
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"rally-cli-output-files")
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self._created_files = []
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self("deployment create --name MAIN%s" % self._DEPLOYMENT_CREATE_ARGS,
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write_report=False)
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def __del__(self):
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shutil.rmtree(self.tmp_dir)
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def _safe_make_dirs(self, dirs):
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try:
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os.makedirs(dirs)
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except OSError as exc:
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if exc.errno == errno.EEXIST and os.path.isdir(dirs):
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pass
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else:
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raise
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def gen_report_path(self, suffix=None, extension=None, keep_old=False):
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"""Report file path/name modifier
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:param suffix: suffix that will be appended to filename.
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It will be appended before extension
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:param extension: file extension.
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:param keep_old: if True, previous reports will not be deleted,
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but rename to 'nameSuffix.old*.extension'
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:return: complete report name to write report
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"""
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self._safe_make_dirs("%s/%s" % (self.reports_root, self.class_name))
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suff = suffix or ""
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ext = extension or "txt"
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path = "%s/%s/%s%s.%s" % (self.reports_root, self.class_name,
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self.method_name, suff, ext)
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if path not in self._created_files:
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if os.path.exists(path):
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if not keep_old:
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os.remove(path)
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else:
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path_list = path.split(".")
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old_suff = "old"
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path_list.insert(-1, old_suff)
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new_path = ".".join(path_list)
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count = 0
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while os.path.exists(new_path):
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count += 1
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path_list[-2] = "old%d" % count
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new_path = ".".join(path_list)
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os.rename(path, new_path)
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self._created_files.append(path)
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return path
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def __call__(self, cmd, getjson=False, report_path=None, raw=False,
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suffix=None, extension=None, keep_old=False,
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write_report=True, no_logs=False):
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"""Call rally in the shell
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:param cmd: rally command
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:param getjson: in cases, when rally prints JSON, you can catch output
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deserialized
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:param report_path: if present, rally command and its output will be
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written to file with passed file name
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:param raw: don't write command itself to report file. Only output
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will be written
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"""
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if not isinstance(cmd, list):
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cmd = cmd.split(" ")
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try:
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if no_logs or getjson:
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cmd = self.args + ["--log-file", "/dev/null"] + cmd
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with open(os.devnull, "w") as DEVNULL:
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output = encodeutils.safe_decode(subprocess.check_output(
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cmd, stderr=DEVNULL, env=self.env))
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else:
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cmd = self.args + cmd
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output = encodeutils.safe_decode(subprocess.check_output(
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cmd, stderr=subprocess.STDOUT, env=self.env))
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if getjson:
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return json.loads(output)
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return output
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except subprocess.CalledProcessError as e:
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output = encodeutils.safe_decode(e.output)
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raise RallyCliError(cmd, e.returncode, output) from None
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finally:
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if write_report:
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if not report_path:
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report_path = self.gen_report_path(
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suffix=suffix, extension=extension, keep_old=keep_old)
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with open(report_path, "a") as rep:
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if not raw:
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rep.write("\n%s:\n" % " ".join(cmd))
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rep.write("%s\n" % output)
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def get_global(global_key, env):
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home_dir = env.get("HOME")
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with open("%s/.rally/globals" % home_dir) as f:
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for line in f.readlines():
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if line.startswith("%s=" % global_key):
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key, value = line.split("=")
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return value.rstrip()
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return ""
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