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cbbca8319b
Otherwise we end up running Tornado against the _previous_ version of our code! Testing of using supervisorctl to stop and then start a process shows it takes about the same amount of time as doing a supervisorctl restart, so there's no reason not to split the two commands apart and make it super clear that nothing is running at the time that we move the deployment symlink. (imported from commit c38049da2bfc9fa94320a32dbf3240d1fcba67f7)
39 lines
1.4 KiB
Python
Executable File
39 lines
1.4 KiB
Python
Executable File
#!/usr/bin/env python
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import os
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import sys
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import subprocess
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import pylibmc
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import traceback
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import logging
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import time
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from humbug_tools import ENDC, WARNING, OKGREEN, DEPLOYMENTS_DIR
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logging.basicConfig(format="%(asctime)s restart-server: %(message)s",
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level=logging.INFO)
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deploy_path = os.path.realpath(os.path.join(os.path.dirname(__file__), '..'))
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os.chdir(deploy_path)
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# Send a statsd event on restarting the server
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subprocess.check_call(["python", "./manage.py", "send_stats", "incr", "events.server_restart", str(int(time.time()))])
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logging.info("Filling memcached caches")
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subprocess.check_call(["python", "./manage.py", "fill_memcached_caches"])
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# Restart the FastCGI and related processes via supervisorctl. We
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# minimize downtime by restarting Django and Tornado separately from
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# the other worker processes.
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logging.info("Killing daemons")
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subprocess.check_call(["supervisorctl", "stop", "humbug-workers:*"])
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subprocess.check_call(["supervisorctl", "stop", "humbug-django"])
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subprocess.check_call(["supervisorctl", "stop", "humbug-tornado"])
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subprocess.check_call(["ln", '-nsf', deploy_path, os.path.join(DEPLOYMENTS_DIR, "current")])
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subprocess.check_call(["supervisorctl", "start", "humbug-tornado"])
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subprocess.check_call(["supervisorctl", "start", "humbug-django"])
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subprocess.check_call(["supervisorctl", "start", "humbug-workers:*"])
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logging.info("Done!")
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print OKGREEN + "Application restarted successfully!" + ENDC
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