mirror of
https://github.com/zulip/zulip.git
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3e3eb2aa7f
This should make it more obvious that these functions will exit the script if the check fails.
172 lines
7.4 KiB
Python
Executable File
172 lines
7.4 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 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, FAIL, WARNING, ENDC, 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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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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# 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"))):
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# For upgrading from <1.4.0. See discussion in commit 586b23637.
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subprocess.check_call(["ln", "-nsf", "/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.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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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", "zulip-tornado", "zulip-senders:*"]
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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"], preexec_fn=su_to_zulip)
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logging.info("Upgrade complete!")
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subprocess.check_call(["./scripts/purge-old-deployments"])
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