mirror of
https://github.com/zulip/zulip.git
synced 2025-10-30 11:33:51 +00:00
c734bbd95d
Generated by `pyupgrade --py3-plus --keep-percent-format` on all our Python code except `zthumbor` and `zulip-ec2-configure-interfaces`, followed by manual indentation fixes. Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
201 lines
8.9 KiB
Python
Executable File
201 lines
8.9 KiB
Python
Executable File
#!/usr/bin/env python3
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#
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# This script contains the actual logic for upgrading from an old
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# version of Zulip to the new version. upgrade-zulip-stage-2 is
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# always run from the new version of Zulip, so any bug fixes take
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# effect on the very next upgrade.
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import argparse
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import configparser
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import hashlib
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import subprocess
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import os
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import sys
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import logging
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import time
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os.environ["PYTHONUNBUFFERED"] = "y"
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# Force a known locale. Some packages on PyPI fail to install in some locales.
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os.environ["LC_ALL"] = "en_US.UTF-8"
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os.environ["LANG"] = "en_US.UTF-8"
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os.environ["LANGUAGE"] = "en_US.UTF-8"
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sys.path.append(os.path.join(os.path.dirname(__file__), '..', '..'))
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from scripts.lib.zulip_tools import DEPLOYMENTS_DIR, su_to_zulip, assert_running_as_root
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assert_running_as_root()
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logging.Formatter.converter = time.gmtime
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logging.basicConfig(format="%(asctime)s upgrade-zulip-stage-2: %(message)s",
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level=logging.INFO)
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# make sure we have appropriate file permissions
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os.umask(0o22)
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parser = argparse.ArgumentParser()
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parser.add_argument("deploy_path", metavar="deploy_path",
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help="Path to deployment directory")
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parser.add_argument("--skip-puppet", dest="skip_puppet", action='store_true',
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help="Skip doing puppet/apt upgrades.")
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parser.add_argument("--skip-migrations", dest="skip_migrations", action='store_true',
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help="Skip doing migrations.")
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parser.add_argument("--from-git", dest="from_git", action='store_true',
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help="Upgrading from git, so run update-prod-static.")
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parser.add_argument("--ignore-static-assets", dest="ignore_static_assets", action='store_true',
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help="Do not attempt to copy/manage static assets.")
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parser.add_argument("--skip-purge-old-deployments", dest="skip_purge_old_deployments",
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action="store_true", help="Skip purging old deployments.")
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args = parser.parse_args()
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deploy_path = args.deploy_path
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os.chdir(deploy_path)
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config_file = configparser.RawConfigParser()
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config_file.read("/etc/zulip/zulip.conf")
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try:
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tornado_processes = int(config_file.get('application_server', 'tornado_processes'))
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except (configparser.NoSectionError, configparser.NoOptionError):
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tornado_processes = 1
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# Handle issues around upstart on Ubuntu Xenial
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subprocess.check_call(["./scripts/lib/check-upstart"])
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if not args.skip_puppet:
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logging.info("Upgrading system packages...")
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subprocess.check_call(["apt-get", "update"])
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subprocess.check_call(["apt-get", "-y", "upgrade"])
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if not os.path.exists(os.path.join(deploy_path, "zproject/prod_settings.py")):
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# This is normally done in unpack-zulip, but for upgrading from
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# zulip<1.4.0, we need to do it. See discussion in commit 586b23637.
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os.symlink("/etc/zulip/settings.py",
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os.path.join(deploy_path, "zproject/prod_settings.py"))
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# Now we should have an environment setup where we can run our tools;
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# first, creating the production venv.
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subprocess.check_call([os.path.join(deploy_path, "scripts", "lib", "create-production-venv"),
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deploy_path])
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# Setup the thumbor venv
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subprocess.check_call([os.path.join(deploy_path, "scripts", "lib", "create-thumbor-venv"),
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deploy_path])
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# Make sure the right version of node is installed
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subprocess.check_call([os.path.join(deploy_path, "scripts", "lib", "install-node"),
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deploy_path])
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# Generate any new secrets that were added in the new version required.
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# TODO: Do caching to only run this when it has changed.
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subprocess.check_call([os.path.join(deploy_path, "scripts", "setup", "generate_secrets.py"),
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"--production"])
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# Unpleasant migration: Remove any legacy deployed copies of
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# images-google-64 from before we renamed that emojiset to
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# "googleblob":
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emoji_path = "/home/zulip/prod-static/generated/emoji/images-google-64/1f32d.png"
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if os.path.exists(emoji_path):
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with open(emoji_path, "rb") as f:
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emoji_data = f.read()
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emoji_sha = hashlib.sha1(emoji_data).hexdigest()
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if emoji_sha == "47033121dc20b376e0f86f4916969872ad22a293":
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import shutil
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shutil.rmtree("/home/zulip/prod-static/generated/emoji/images-google-64")
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# And then, building/installing the static assets.
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if args.ignore_static_assets:
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# For the OS version upgrade use case, the static assets are
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# already in place, and we don't need to do anything. Further,
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# neither of the options below will work for all installations,
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# because if we installed from Git, `prod-static/serve` may be
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# empty so we can't do the non-Git thing, whereas if we installed
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# from a tarball, we won't have a `tools/` directory and thus
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# cannot run `tools/update-prod-static`.
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pass
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elif args.from_git:
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# Note: The fact that this is before we apply puppet changes means
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# that we don't support adding new puppet dependencies of
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# update-prod-static with the git upgrade process. But it'll fail
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# safely; this seems like a worthwhile tradeoff to minimize downtime.
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logging.info("Building static assets...")
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subprocess.check_call(["./tools/update-prod-static", "--authors-not-required", "--prev-deploy",
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os.path.join(DEPLOYMENTS_DIR, 'current')],
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preexec_fn=su_to_zulip)
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logging.info("Caching zulip git version...")
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subprocess.check_call(["./tools/cache-zulip-git-version"], preexec_fn=su_to_zulip)
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else:
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# Since this doesn't do any actual work, it's likely safe to have
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# this run before we apply puppet changes (saving a bit of downtime).
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logging.info("Installing static assets...")
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subprocess.check_call(["cp", "-rT", os.path.join(deploy_path, 'prod-static/serve'),
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'/home/zulip/prod-static'], preexec_fn=su_to_zulip)
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usermessage_index_migrations = [
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"[ ] 0082_index_starred_user_messages",
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"[ ] 0083_index_mentioned_user_messages",
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"[ ] 0095_index_unread_user_messages",
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"[ ] 0098_index_has_alert_word_user_messages",
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"[ ] 0099_index_wildcard_mentioned_user_messages",
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"[ ] 0177_user_message_add_and_index_is_private_flag",
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"[ ] 0180_usermessage_add_active_mobile_push_notification",
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]
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# Our next optimization is to check whether any migrations are needed
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# before we start the critical section of the restart. This saves
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# about 1s of downtime in a no-op upgrade.
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migrations_needed = False
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if not args.skip_migrations:
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logging.info("Checking for needed migrations")
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migrations_output = subprocess.check_output(["./manage.py", "showmigrations"],
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preexec_fn=su_to_zulip).decode("utf-8")
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need_create_large_indexes = False
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for ln in migrations_output.split("\n"):
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line_str = ln.strip()
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if line_str.startswith("[ ]"):
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migrations_needed = True
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if line_str in usermessage_index_migrations:
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need_create_large_indexes = True
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if need_create_large_indexes:
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logging.info("Creating some expensive indexes before starting downtime.")
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subprocess.check_call(["./manage.py", "create_large_indexes"],
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preexec_fn=su_to_zulip)
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# Now we start shutting down services; we start with
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# process-fts-updates, which isn't on the critical serving path.
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if os.path.exists("/etc/supervisor/conf.d/zulip_db.conf"):
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subprocess.check_call(["supervisorctl", "stop", "process-fts-updates"], preexec_fn=su_to_zulip)
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core_server_services = ["zulip-django",
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"zulip-tornado" if tornado_processes == 1 else "zulip-tornado:*"]
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worker_services = ["zulip-workers:*"]
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# Stop and start thumbor service only if thumbor is installed.
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if os.path.exists("/etc/supervisor/conf.d/thumbor.conf"):
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core_server_services.append("zulip-thumbor")
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if not args.skip_puppet or migrations_needed:
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# By default, we shut down the service to apply migrations and
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# puppet changes, to minimize risk of issues due to inconsistent
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# state.
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logging.info("Stopping Zulip...")
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subprocess.check_call(["supervisorctl", "stop"] + core_server_services + worker_services,
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preexec_fn=su_to_zulip)
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if not args.skip_puppet:
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logging.info("Applying puppet changes...")
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subprocess.check_call(["./scripts/zulip-puppet-apply", "--force"])
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subprocess.check_call(["apt-get", "upgrade"])
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if migrations_needed:
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logging.info("Applying database migrations...")
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subprocess.check_call(["./manage.py", "migrate", "--noinput"], preexec_fn=su_to_zulip)
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subprocess.check_call(["./manage.py", "create_realm_internal_bots"], preexec_fn=su_to_zulip)
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logging.info("Restarting Zulip...")
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subprocess.check_output(["./scripts/restart-server", "--fill-cache"], preexec_fn=su_to_zulip)
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logging.info("Upgrade complete!")
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if not args.skip_purge_old_deployments:
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logging.info("Purging old deployments...")
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subprocess.check_call(["./scripts/purge-old-deployments"])
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else:
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logging.info("Skipping purging old deployments.")
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