348 lines
14 KiB
Python
348 lines
14 KiB
Python
"""
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Helper script that generates environmental variables for upgrade/update.
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From the stable-release parameter it calculate environmental variables
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for mixed release.
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It supports:
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- overcloud-upgrade from stable_release ocata.
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- overcloud-update, all releases.
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- undercloud-upgrade from stable_release ocata.
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- fast forward upgrade;
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- newton->queens;
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- standalone-upgrade from stable_release stein.
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It exports those environmental variables in the OUTPUT_FILE:
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- UNDERCLOUD_INSTALL_RELEASE
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- UNDERCLOUD_INSTALL_HASH
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- UNDERCLOUD_TARGET_RELEASE
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- UNDERCLOUD_TARGET_HASH
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- OVERCLOUD_DEPLOY_RELEASE
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- OVERCLOUD_DEPLOY_HASH
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- OVERCLOUD_TARGET_RELEASE
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- OVERCLOUD_TARGET_HASH
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- STANDALONE_DEPLOY_RELEASE
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- STANDALONE_DEPLOY_NEWEST_HASH
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- STANDALONE_DEPLOY_HASH
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- STANDALONE_TARGET_RELEASE
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- STANDALONE_TARGET_NEWEST_HASH
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- STANDALONE_TARGET_HASH
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"""
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import argparse
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import logging
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import logging.handlers
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import os
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import re
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import requests
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import yaml
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# Define releases
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RELEASES = ['newton', 'ocata', 'pike', 'queens', 'rocky', 'master']
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# Define long term releases
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LONG_TERM_SUPPORT_RELEASES = ['queens']
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UNSUPPORTED_STANDALONE = ['newton', 'ocata', 'pike', 'queens', 'rocky']
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# NAMED DLRN HASHES
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NEWTON_HASH_NAME = 'current-passed-ci'
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CURRENT_HASH_NAME = 'current-tripleo'
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NEWEST_HASH_NAME = 'current'
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PROMOTION_HASH_NAME = 'tripleo-ci-testing'
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PREVIOUS_HASH_NAME = 'previous-current-tripleo'
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def get_relative_release(release, relative_idx):
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current_idx = RELEASES.index(release)
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absolute_idx = current_idx + relative_idx
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return RELEASES[absolute_idx]
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def setup_logging(log_file):
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'''Setup logging for the script'''
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logger = logging.getLogger('emit-releases')
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logger.setLevel(logging.DEBUG)
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log_handler = logging.handlers.WatchedFileHandler(
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os.path.expanduser(log_file))
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logger.addHandler(log_handler)
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def load_featureset_file(featureset_file):
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logger = logging.getLogger('emit-releases')
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try:
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with open(featureset_file, 'r') as stream:
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featureset = yaml.safe_load(stream)
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except Exception as e:
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logger.error("The featureset file: {} can not be "
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"opened.".format(featureset_file))
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logger.exception(e)
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raise e
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return featureset
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def get_dlrn_hash(release, hash_name, retries=10, timeout=4):
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logger = logging.getLogger('emit-releases')
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full_hash_pattern = re.compile('[a-z,0-9]{40}_[a-z,0-9]{8}')
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repo_url = ('https://trunk.rdoproject.org/centos7-%s/%s/delorean.repo' %
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(release, hash_name))
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for retry_num in range(retries):
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repo_file = None
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try:
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repo_file = requests.get(repo_url, timeout=timeout)
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except Exception as e:
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logger.warning("Attempt {} of {} to get DLRN hash threw an "
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"exception.".format(retry_num + 1, retries))
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logger.exception(e)
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pass
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else:
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if repo_file is not None and repo_file.ok:
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break
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elif repo_file:
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logger.warning("Attempt {} of {} to get DLRN hash returned "
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"status code {}.".format(retry_num + 1,
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retries,
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repo_file.status_code))
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else:
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logger.warning("Attempt {} of {} to get DLRN hash failed to "
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"get a response.".format(retry_num + 1,
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retries))
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if repo_file is None or not repo_file.ok:
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raise RuntimeError("Failed to retrieve repo file from {} after "
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"{} retries".format(repo_url, retries))
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full_hash = full_hash_pattern.findall(repo_file.text)
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logger.info("Got DLRN hash: {} for the named hash: {} on the {} "
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"release".format(full_hash[0], hash_name, release))
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return full_hash[0]
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def compose_releases_dictionary(stable_release, featureset, upgrade_from,
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is_periodic=False):
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logger = logging.getLogger('emit-releases')
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if stable_release not in RELEASES:
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raise RuntimeError("The {} release is not supported by this tool"
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"Supported releases: {}".format(
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stable_release, RELEASES))
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if (featureset.get('overcloud_upgrade') or
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featureset.get('undercloud_upgrade')) and \
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stable_release == RELEASES[0]:
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raise RuntimeError("Cannot upgrade to {}".format(RELEASES[0]))
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if featureset.get('undercloud_upgrade') and stable_release == 'ocata':
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raise RuntimeError("Undercloud upgrades are not supported from "
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"newton to ocata")
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if featureset.get('overcloud_upgrade') and \
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featureset.get('undercloud_upgrade'):
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raise RuntimeError("This tool currently only supports upgrading the "
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"undercloud OR the overcloud NOT both.")
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if (featureset.get('overcloud_upgrade') or
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featureset.get('ffu_overcloud_upgrade')) and \
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not featureset.get('mixed_upgrade'):
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raise RuntimeError("Overcloud upgrade has to be mixed upgrades")
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if featureset.get('standalone_upgrade') and \
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stable_release in UNSUPPORTED_STANDALONE:
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raise RuntimeError(
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"Standalone upgrade doesn't support {}".format(stable_release))
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if featureset.get('ffu_overcloud_upgrade') and \
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stable_release not in LONG_TERM_SUPPORT_RELEASES:
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raise RuntimeError(
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"{} is not a long-term support release, and cannot be "
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"used in a fast forward upgrade. Current long-term support "
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"releases: {}".format(stable_release, LONG_TERM_SUPPORT_RELEASES))
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newest_hash = get_dlrn_hash(stable_release, NEWEST_HASH_NAME)
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if stable_release == 'newton':
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current_hash = get_dlrn_hash(stable_release, NEWTON_HASH_NAME)
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elif is_periodic:
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current_hash = get_dlrn_hash(stable_release, PROMOTION_HASH_NAME)
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else:
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current_hash = get_dlrn_hash(stable_release, CURRENT_HASH_NAME)
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releases_dictionary = {
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'undercloud_install_release': stable_release,
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'undercloud_install_hash': current_hash,
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'undercloud_target_release': stable_release,
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'undercloud_target_hash': current_hash,
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'overcloud_deploy_release': stable_release,
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'overcloud_deploy_hash': current_hash,
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'overcloud_target_release': stable_release,
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'overcloud_target_hash': current_hash,
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'standalone_deploy_release': stable_release,
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'standalone_deploy_hash': current_hash,
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'standalone_deploy_newest_hash': newest_hash,
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'standalone_target_release': stable_release,
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'standalone_target_hash': current_hash,
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'standalone_target_newest_hash': newest_hash,
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}
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if featureset.get('mixed_upgrade'):
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if featureset.get('overcloud_upgrade'):
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logger.info('Doing an overcloud upgrade')
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deploy_release = get_relative_release(stable_release, -1)
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if deploy_release == 'newton':
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deploy_hash = get_dlrn_hash(deploy_release, NEWTON_HASH_NAME)
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else:
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deploy_hash = get_dlrn_hash(deploy_release, CURRENT_HASH_NAME)
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releases_dictionary['overcloud_deploy_release'] = deploy_release
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releases_dictionary['overcloud_deploy_hash'] = deploy_hash
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elif featureset.get('ffu_overcloud_upgrade'):
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logger.info('Doing an overcloud fast forward upgrade')
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deploy_release = get_relative_release(stable_release, -3)
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if deploy_release == 'newton':
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deploy_hash = get_dlrn_hash(deploy_release, NEWTON_HASH_NAME)
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else:
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deploy_hash = get_dlrn_hash(deploy_release, CURRENT_HASH_NAME)
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releases_dictionary['overcloud_deploy_release'] = deploy_release
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releases_dictionary['overcloud_deploy_hash'] = deploy_hash
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elif featureset.get('undercloud_upgrade'):
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logger.info('Doing an undercloud upgrade')
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install_release = get_relative_release(stable_release, -1)
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install_hash = get_dlrn_hash(install_release, CURRENT_HASH_NAME)
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releases_dictionary['undercloud_install_release'] = install_release
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releases_dictionary['undercloud_install_hash'] = install_hash
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elif featureset.get('standalone_upgrade'):
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logger.info('Doing an standalone upgrade')
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install_release = get_relative_release(stable_release, -1)
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install_hash = get_dlrn_hash(install_release, CURRENT_HASH_NAME)
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install_newest_hash = get_dlrn_hash(install_release, NEWEST_HASH_NAME)
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releases_dictionary['standalone_deploy_release'] = install_release
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releases_dictionary['standalone_deploy_newest_hash'] = \
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install_newest_hash
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releases_dictionary['standalone_deploy_hash'] = install_hash
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elif featureset.get('overcloud_update'):
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logger.info('Doing an overcloud update')
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previous_hash = get_dlrn_hash(stable_release, PREVIOUS_HASH_NAME)
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releases_dictionary['overcloud_deploy_hash'] = previous_hash
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logger.debug("stable_release: %s, featureset: %s", stable_release,
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featureset)
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logger.info('output releases: %s', releases_dictionary)
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return releases_dictionary
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def shim_convert_old_release_names(releases_names, is_periodic):
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# TODO(trown): Remove this shim when we no longer need to use the
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# old style double release files.
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# Remove unspected side-effects
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modified_releases_name = releases_names.copy()
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oc_deploy_release = releases_names['overcloud_deploy_release']
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oc_target_release = releases_names['overcloud_target_release']
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uc_install_release = releases_names['undercloud_install_release']
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if oc_deploy_release != oc_target_release:
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release_file = "{}-undercloud-{}-overcloud".format(
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uc_install_release, oc_deploy_release)
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modified_releases_name['undercloud_install_release'] = release_file
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modified_releases_name['undercloud_target_release'] = release_file
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modified_releases_name['overcloud_deploy_release'] = release_file
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modified_releases_name['overcloud_target_release'] = release_file
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elif is_periodic:
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for key in [
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'undercloud_install_release', 'undercloud_target_release',
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'overcloud_deploy_release', 'overcloud_target_release',
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'standalone_deploy_release', 'standalone_target_release'
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]:
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modified_releases_name[
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key] = "promotion-testing-hash-" + releases_names[key]
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return modified_releases_name
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def write_releases_dictionary_to_bash(releases_dictionary, bash_file_name):
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logger = logging.getLogger('emit-releases')
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# Make it deterministic, expected constants in the proper order
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try:
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bash_script = '''#!/bin/env bash
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export UNDERCLOUD_INSTALL_RELEASE="{undercloud_install_release}"
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export UNDERCLOUD_INSTALL_HASH="{undercloud_install_hash}"
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export UNDERCLOUD_TARGET_RELEASE="{undercloud_target_release}"
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export UNDERCLOUD_TARGET_HASH="{undercloud_target_hash}"
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export OVERCLOUD_DEPLOY_RELEASE="{overcloud_deploy_release}"
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export OVERCLOUD_DEPLOY_HASH="{overcloud_deploy_hash}"
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export OVERCLOUD_TARGET_RELEASE="{overcloud_target_release}"
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export OVERCLOUD_TARGET_HASH="{overcloud_target_hash}"
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export STANDALONE_DEPLOY_RELEASE="{standalone_deploy_release}"
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export STANDALONE_DEPLOY_HASH="{standalone_deploy_hash}"
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export STANDALONE_DEPLOY_NEWEST_HASH="{standalone_deploy_newest_hash}"
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export STANDALONE_TARGET_RELEASE="{standalone_target_release}"
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export STANDALONE_TARGET_NEWEST_HASH="{standalone_target_newest_hash}"
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export STANDALONE_TARGET_HASH="{standalone_target_hash}"
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'''.format(**releases_dictionary)
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with open(bash_file_name, 'w') as bash_file:
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bash_file.write(bash_script)
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except Exception:
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logger.exception("Writting releases dictionary")
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return False
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return True
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if __name__ == '__main__':
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default_log_file = '{}.log'.format(os.path.basename(__file__))
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default_output_file = '{}.out'.format(os.path.basename(__file__))
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parser = argparse.ArgumentParser(
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formatter_class=argparse.RawTextHelpFormatter,
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description='Get a dictionary of releases from a release '
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'and a featureset file.')
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parser.add_argument('--stable-release',
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choices=RELEASES,
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required=True,
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help='Release that the change being tested is from.\n'
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'All other releases are calculated from this\n'
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'basis.')
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parser.add_argument('--featureset-file',
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required=True,
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help='Featureset file which will be introspected to\n'
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'infer what type of upgrade is being performed\n'
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'(if any).')
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parser.add_argument('--output-file', default=default_output_file,
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help='Output file containing dictionary of releases\n'
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'for the provided featureset and release.\n'
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'(default: %(default)s)')
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parser.add_argument('--log-file', default=default_log_file,
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help='log file to print debug information from\n'
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'running the script.\n'
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'(default: %(default)s)')
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parser.add_argument('--upgrade-from', action='store_false',
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help='Upgrade FROM the change under test instead\n'
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'of the default of upgrading TO the change\n'
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'under test.')
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parser.add_argument('--is-periodic', action='store_true',
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help='Specify if the current running job is periodic')
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args = parser.parse_args()
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setup_logging(args.log_file)
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logger = logging.getLogger('emit-releases')
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featureset = load_featureset_file(args.featureset_file)
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releases_dictionary = compose_releases_dictionary(args.stable_release,
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featureset,
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args.upgrade_from,
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args.is_periodic)
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releases_dictionary = shim_convert_old_release_names(releases_dictionary,
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args.is_periodic)
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if not write_releases_dictionary_to_bash(
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releases_dictionary, args.output_file):
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exit(1)
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