mirror of https://github.com/zulip/zulip.git
57 lines
2.2 KiB
Python
57 lines
2.2 KiB
Python
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#!/usr/bin/env python3
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import json
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import os
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import subprocess
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import sys
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from typing import Any, Dict
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BASE_DIR = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
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sys.path.append(BASE_DIR)
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from scripts.lib.setup_path import setup_path
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setup_path()
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from scripts.lib.zulip_tools import get_config_file
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def write_realm_nginx_config_line(f: Any, host: str, port: str) -> None:
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f.write("""if ($host = '%s') {
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set $tornado_server http://tornado%s;
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}\n""" % (host, port))
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# Basic system to do Tornado sharding. Writes two output .tmp files that need
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# to be renamed to the following files to finalize the changes:
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# * /etc/zulip/nginx_sharding.conf; nginx needs to be reloaded after changing.
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# * /etc/zulip/sharding.json; supervisor Django process needs to be reloaded
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# after changing. TODO: We can probably make this live-reload by statting the file.
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#
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# TODO: Restructure this to automatically generate a sharding layout.
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with open('/etc/zulip/nginx_sharding.conf.tmp', 'w') as nginx_sharding_conf_f, \
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open('/etc/zulip/sharding.json.tmp', 'w') as sharding_json_f:
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config_file = get_config_file()
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if not config_file.has_section("tornado_sharding"):
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nginx_sharding_conf_f.write("set $tornado_server http://tornado;\n")
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sharding_json_f.write('{}\n')
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sys.exit(0)
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nginx_sharding_conf_f.write("set $tornado_server http://tornado9800;\n")
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shard_map: Dict[str, int] = {}
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external_host = subprocess.check_output([os.path.join(BASE_DIR, 'scripts/get-django-setting'),
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'EXTERNAL_HOST'],
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universal_newlines=True).strip()
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for port in config_file["tornado_sharding"]:
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shards = config_file["tornado_sharding"][port].strip().split(' ')
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for shard in shards:
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if '.' in shard:
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host = shard
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else:
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host = "{}.{}".format(shard, external_host)
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assert host not in shard_map, "host %s duplicated" % (host,)
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shard_map[host] = int(port)
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write_realm_nginx_config_line(nginx_sharding_conf_f, host, port)
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nginx_sharding_conf_f.write('\n')
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sharding_json_f.write(json.dumps(shard_map) + '\n')
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