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23740eaa3d
During the migration the automated script to update the copyright headers accidentally got rid of some of the existing copyright lines. Reinstate them.
1104 lines
44 KiB
Python
Executable file
1104 lines
44 KiB
Python
Executable file
#!/usr/bin/env python
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#
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# This file is licensed under the Affero General Public License (AGPL) version 3.
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#
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# Copyright 2021 The Matrix.org Foundation C.I.C.
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# Copyright (C) 2023 New Vector, Ltd
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# See the GNU Affero General Public License for more details:
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# <https://www.gnu.org/licenses/agpl-3.0.html>.
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#
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# Originally licensed under the Apache License, Version 2.0:
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# <http://www.apache.org/licenses/LICENSE-2.0>.
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#
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# [This file includes modifications made by New Vector Limited]
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#
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#
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# This script reads environment variables and generates a shared Synapse worker,
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# nginx and supervisord configs depending on the workers requested.
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#
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# The environment variables it reads are:
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# * SYNAPSE_SERVER_NAME: The desired server_name of the homeserver.
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# * SYNAPSE_REPORT_STATS: Whether to report stats.
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# * SYNAPSE_WORKER_TYPES: A comma separated list of worker names as specified in WORKERS_CONFIG
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# below. Leave empty for no workers. Add a ':' and a number at the end to
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# multiply that worker. Append multiple worker types with '+' to merge the
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# worker types into a single worker. Add a name and a '=' to the front of a
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# worker type to give this instance a name in logs and nginx.
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# Examples:
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# SYNAPSE_WORKER_TYPES='event_persister, federation_sender, client_reader'
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# SYNAPSE_WORKER_TYPES='event_persister:2, federation_sender:2, client_reader'
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# SYNAPSE_WORKER_TYPES='stream_writers=account_data+presence+typing'
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# * SYNAPSE_AS_REGISTRATION_DIR: If specified, a directory in which .yaml and .yml files
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# will be treated as Application Service registration files.
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# * SYNAPSE_TLS_CERT: Path to a TLS certificate in PEM format.
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# * SYNAPSE_TLS_KEY: Path to a TLS key. If this and SYNAPSE_TLS_CERT are specified,
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# Nginx will be configured to serve TLS on port 8448.
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# * SYNAPSE_USE_EXPERIMENTAL_FORKING_LAUNCHER: Whether to use the forking launcher,
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# only intended for usage in Complement at the moment.
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# No stability guarantees are provided.
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# * SYNAPSE_LOG_LEVEL: Set this to DEBUG, INFO, WARNING or ERROR to change the
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# log level. INFO is the default.
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# * SYNAPSE_LOG_SENSITIVE: If unset, SQL and SQL values won't be logged,
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# regardless of the SYNAPSE_LOG_LEVEL setting.
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# * SYNAPSE_LOG_TESTING: if set, Synapse will log additional information useful
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# for testing.
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#
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# NOTE: According to Complement's ENTRYPOINT expectations for a homeserver image (as defined
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# in the project's README), this script may be run multiple times, and functionality should
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# continue to work if so.
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import os
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import platform
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import re
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import subprocess
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import sys
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from argparse import ArgumentParser
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from collections import defaultdict
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from itertools import chain
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from pathlib import Path
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from typing import (
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Any,
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Dict,
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List,
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Mapping,
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MutableMapping,
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NoReturn,
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Optional,
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Set,
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SupportsIndex,
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)
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import yaml
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from jinja2 import Environment, FileSystemLoader
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MAIN_PROCESS_HTTP_LISTENER_PORT = 8080
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MAIN_PROCESS_INSTANCE_NAME = "main"
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MAIN_PROCESS_LOCALHOST_ADDRESS = "127.0.0.1"
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MAIN_PROCESS_REPLICATION_PORT = 9093
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# Obviously, these would only be used with the UNIX socket option
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MAIN_PROCESS_UNIX_SOCKET_PUBLIC_PATH = "/run/main_public.sock"
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MAIN_PROCESS_UNIX_SOCKET_PRIVATE_PATH = "/run/main_private.sock"
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# A simple name used as a placeholder in the WORKERS_CONFIG below. This will be replaced
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# during processing with the name of the worker.
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WORKER_PLACEHOLDER_NAME = "placeholder_name"
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# Workers with exposed endpoints needs either "client", "federation", or "media" listener_resources
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# Watching /_matrix/client needs a "client" listener
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# Watching /_matrix/federation needs a "federation" listener
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# Watching /_matrix/media and related needs a "media" listener
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# Stream Writers require "client" and "replication" listeners because they
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# have to attach by instance_map to the master process and have client endpoints.
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WORKERS_CONFIG: Dict[str, Dict[str, Any]] = {
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"pusher": {
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"app": "synapse.app.generic_worker",
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"listener_resources": [],
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"endpoint_patterns": [],
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"shared_extra_conf": {},
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"worker_extra_conf": "",
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},
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"user_dir": {
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"app": "synapse.app.generic_worker",
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"listener_resources": ["client"],
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"endpoint_patterns": [
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"^/_matrix/client/(api/v1|r0|v3|unstable)/user_directory/search$"
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],
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"shared_extra_conf": {
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"update_user_directory_from_worker": WORKER_PLACEHOLDER_NAME
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},
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"worker_extra_conf": "",
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},
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"media_repository": {
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"app": "synapse.app.generic_worker",
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"listener_resources": ["media"],
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"endpoint_patterns": [
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"^/_matrix/media/",
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"^/_synapse/admin/v1/purge_media_cache$",
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"^/_synapse/admin/v1/room/.*/media.*$",
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"^/_synapse/admin/v1/user/.*/media.*$",
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"^/_synapse/admin/v1/media/.*$",
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"^/_synapse/admin/v1/quarantine_media/.*$",
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],
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# The first configured media worker will run the media background jobs
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"shared_extra_conf": {
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"enable_media_repo": False,
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"media_instance_running_background_jobs": WORKER_PLACEHOLDER_NAME,
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},
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"worker_extra_conf": "enable_media_repo: true",
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},
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"appservice": {
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"app": "synapse.app.generic_worker",
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"listener_resources": [],
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"endpoint_patterns": [],
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"shared_extra_conf": {
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"notify_appservices_from_worker": WORKER_PLACEHOLDER_NAME
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},
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"worker_extra_conf": "",
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},
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"federation_sender": {
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"app": "synapse.app.generic_worker",
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"listener_resources": [],
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"endpoint_patterns": [],
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"shared_extra_conf": {},
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"worker_extra_conf": "",
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},
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"synchrotron": {
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"app": "synapse.app.generic_worker",
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"listener_resources": ["client"],
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"endpoint_patterns": [
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"^/_matrix/client/(v2_alpha|r0|v3)/sync$",
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"^/_matrix/client/(api/v1|v2_alpha|r0|v3)/events$",
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"^/_matrix/client/(api/v1|r0|v3)/initialSync$",
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"^/_matrix/client/(api/v1|r0|v3)/rooms/[^/]+/initialSync$",
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],
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"shared_extra_conf": {},
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"worker_extra_conf": "",
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},
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"client_reader": {
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"app": "synapse.app.generic_worker",
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"listener_resources": ["client"],
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"endpoint_patterns": [
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"^/_matrix/client/(api/v1|r0|v3|unstable)/publicRooms$",
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"^/_matrix/client/(api/v1|r0|v3|unstable)/rooms/.*/joined_members$",
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"^/_matrix/client/(api/v1|r0|v3|unstable)/rooms/.*/context/.*$",
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"^/_matrix/client/(api/v1|r0|v3|unstable)/rooms/.*/members$",
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"^/_matrix/client/(api/v1|r0|v3|unstable)/rooms/.*/state$",
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"^/_matrix/client/v1/rooms/.*/hierarchy$",
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"^/_matrix/client/(v1|unstable)/rooms/.*/relations/",
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"^/_matrix/client/v1/rooms/.*/threads$",
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"^/_matrix/client/(api/v1|r0|v3|unstable)/login$",
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"^/_matrix/client/(api/v1|r0|v3|unstable)/account/3pid$",
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"^/_matrix/client/(api/v1|r0|v3|unstable)/account/whoami$",
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"^/_matrix/client/versions$",
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"^/_matrix/client/(api/v1|r0|v3|unstable)/voip/turnServer$",
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"^/_matrix/client/(r0|v3|unstable)/register$",
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"^/_matrix/client/(r0|v3|unstable)/register/available$",
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"^/_matrix/client/(r0|v3|unstable)/auth/.*/fallback/web$",
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"^/_matrix/client/(api/v1|r0|v3|unstable)/rooms/.*/messages$",
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"^/_matrix/client/(api/v1|r0|v3|unstable)/rooms/.*/event",
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"^/_matrix/client/(api/v1|r0|v3|unstable)/joined_rooms",
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"^/_matrix/client/(api/v1|r0|v3|unstable/.*)/rooms/.*/aliases",
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"^/_matrix/client/v1/rooms/.*/timestamp_to_event$",
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"^/_matrix/client/(api/v1|r0|v3|unstable)/search",
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"^/_matrix/client/(r0|v3|unstable)/user/.*/filter(/|$)",
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"^/_matrix/client/(r0|v3|unstable)/password_policy$",
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"^/_matrix/client/(api/v1|r0|v3|unstable)/directory/room/.*$",
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"^/_matrix/client/(r0|v3|unstable)/capabilities$",
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"^/_matrix/client/(r0|v3|unstable)/notifications$",
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],
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"shared_extra_conf": {},
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"worker_extra_conf": "",
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},
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"federation_reader": {
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"app": "synapse.app.generic_worker",
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"listener_resources": ["federation"],
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"endpoint_patterns": [
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"^/_matrix/federation/(v1|v2)/event/",
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"^/_matrix/federation/(v1|v2)/state/",
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"^/_matrix/federation/(v1|v2)/state_ids/",
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"^/_matrix/federation/(v1|v2)/backfill/",
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"^/_matrix/federation/(v1|v2)/get_missing_events/",
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"^/_matrix/federation/(v1|v2)/publicRooms",
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"^/_matrix/federation/(v1|v2)/query/",
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"^/_matrix/federation/(v1|v2)/make_join/",
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"^/_matrix/federation/(v1|v2)/make_leave/",
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"^/_matrix/federation/(v1|v2)/send_join/",
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"^/_matrix/federation/(v1|v2)/send_leave/",
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"^/_matrix/federation/(v1|v2)/invite/",
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"^/_matrix/federation/(v1|v2)/query_auth/",
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"^/_matrix/federation/(v1|v2)/event_auth/",
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"^/_matrix/federation/v1/timestamp_to_event/",
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"^/_matrix/federation/(v1|v2)/exchange_third_party_invite/",
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"^/_matrix/federation/(v1|v2)/user/devices/",
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"^/_matrix/federation/(v1|v2)/get_groups_publicised$",
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"^/_matrix/key/v2/query",
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],
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"shared_extra_conf": {},
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"worker_extra_conf": "",
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},
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"federation_inbound": {
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"app": "synapse.app.generic_worker",
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"listener_resources": ["federation"],
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"endpoint_patterns": ["/_matrix/federation/(v1|v2)/send/"],
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"shared_extra_conf": {},
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"worker_extra_conf": "",
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},
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"event_persister": {
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"app": "synapse.app.generic_worker",
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"listener_resources": ["replication"],
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"endpoint_patterns": [],
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"shared_extra_conf": {},
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"worker_extra_conf": "",
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},
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"background_worker": {
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"app": "synapse.app.generic_worker",
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"listener_resources": [],
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"endpoint_patterns": [],
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# This worker cannot be sharded. Therefore, there should only ever be one
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# background worker. This is enforced for the safety of your database.
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"shared_extra_conf": {"run_background_tasks_on": WORKER_PLACEHOLDER_NAME},
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"worker_extra_conf": "",
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},
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"event_creator": {
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"app": "synapse.app.generic_worker",
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"listener_resources": ["client"],
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"endpoint_patterns": [
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"^/_matrix/client/(api/v1|r0|v3|unstable)/rooms/.*/redact",
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"^/_matrix/client/(api/v1|r0|v3|unstable)/rooms/.*/send",
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"^/_matrix/client/(api/v1|r0|v3|unstable)/rooms/.*/(join|invite|leave|ban|unban|kick)$",
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"^/_matrix/client/(api/v1|r0|v3|unstable)/join/",
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"^/_matrix/client/(api/v1|r0|v3|unstable)/knock/",
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"^/_matrix/client/(api/v1|r0|v3|unstable)/profile/",
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],
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"shared_extra_conf": {},
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"worker_extra_conf": "",
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},
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"frontend_proxy": {
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"app": "synapse.app.generic_worker",
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"listener_resources": ["client", "replication"],
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"endpoint_patterns": ["^/_matrix/client/(api/v1|r0|v3|unstable)/keys/upload"],
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"shared_extra_conf": {},
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"worker_extra_conf": "",
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},
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"account_data": {
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"app": "synapse.app.generic_worker",
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"listener_resources": ["client", "replication"],
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"endpoint_patterns": [
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"^/_matrix/client/(r0|v3|unstable)/.*/tags",
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"^/_matrix/client/(r0|v3|unstable)/.*/account_data",
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],
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"shared_extra_conf": {},
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"worker_extra_conf": "",
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},
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"presence": {
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"app": "synapse.app.generic_worker",
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"listener_resources": ["client", "replication"],
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"endpoint_patterns": ["^/_matrix/client/(api/v1|r0|v3|unstable)/presence/"],
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"shared_extra_conf": {},
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"worker_extra_conf": "",
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},
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"receipts": {
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"app": "synapse.app.generic_worker",
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"listener_resources": ["client", "replication"],
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"endpoint_patterns": [
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"^/_matrix/client/(r0|v3|unstable)/rooms/.*/receipt",
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"^/_matrix/client/(r0|v3|unstable)/rooms/.*/read_markers",
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],
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"shared_extra_conf": {},
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"worker_extra_conf": "",
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},
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"to_device": {
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"app": "synapse.app.generic_worker",
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"listener_resources": ["client", "replication"],
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"endpoint_patterns": ["^/_matrix/client/(r0|v3|unstable)/sendToDevice/"],
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"shared_extra_conf": {},
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"worker_extra_conf": "",
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},
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"typing": {
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"app": "synapse.app.generic_worker",
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"listener_resources": ["client", "replication"],
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"endpoint_patterns": [
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"^/_matrix/client/(api/v1|r0|v3|unstable)/rooms/.*/typing"
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],
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"shared_extra_conf": {},
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"worker_extra_conf": "",
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},
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}
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# Templates for sections that may be inserted multiple times in config files
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NGINX_LOCATION_CONFIG_BLOCK = """
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location ~* {endpoint} {{
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proxy_pass {upstream};
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proxy_set_header X-Forwarded-For $remote_addr;
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proxy_set_header X-Forwarded-Proto $scheme;
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proxy_set_header Host $host;
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}}
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"""
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NGINX_UPSTREAM_CONFIG_BLOCK = """
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upstream {upstream_worker_base_name} {{
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{body}
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}}
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"""
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# Utility functions
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def log(txt: str) -> None:
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print(txt)
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def error(txt: str) -> NoReturn:
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print(txt, file=sys.stderr)
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sys.exit(2)
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def flush_buffers() -> None:
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sys.stdout.flush()
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sys.stderr.flush()
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def convert(src: str, dst: str, **template_vars: object) -> None:
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"""Generate a file from a template
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Args:
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src: Path to the input file.
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dst: Path to write to.
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template_vars: The arguments to replace placeholder variables in the template with.
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"""
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# Read the template file
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# We disable autoescape to prevent template variables from being escaped,
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# as we're not using HTML.
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env = Environment(loader=FileSystemLoader(os.path.dirname(src)), autoescape=False)
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template = env.get_template(os.path.basename(src))
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# Generate a string from the template.
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rendered = template.render(**template_vars)
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# Write the generated contents to a file
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#
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# We use append mode in case the files have already been written to by something else
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# (for instance, as part of the instructions in a dockerfile).
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with open(dst, "a") as outfile:
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# In case the existing file doesn't end with a newline
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outfile.write("\n")
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outfile.write(rendered)
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def add_worker_roles_to_shared_config(
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shared_config: dict,
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worker_types_set: Set[str],
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worker_name: str,
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worker_port: int,
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) -> None:
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"""Given a dictionary representing a config file shared across all workers,
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append appropriate worker information to it for the current worker_type instance.
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Args:
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shared_config: The config dict that all worker instances share (after being
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converted to YAML)
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worker_types_set: The type of worker (one of those defined in WORKERS_CONFIG).
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This list can be a single worker type or multiple.
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worker_name: The name of the worker instance.
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worker_port: The HTTP replication port that the worker instance is listening on.
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"""
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# The instance_map config field marks the workers that write to various replication
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# streams
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instance_map = shared_config.setdefault("instance_map", {})
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# This is a list of the stream_writers that there can be only one of. Events can be
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# sharded, and therefore doesn't belong here.
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singular_stream_writers = [
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"account_data",
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"presence",
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"receipts",
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"to_device",
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"typing",
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]
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# Worker-type specific sharding config. Now a single worker can fulfill multiple
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# roles, check each.
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if "pusher" in worker_types_set:
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shared_config.setdefault("pusher_instances", []).append(worker_name)
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if "federation_sender" in worker_types_set:
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shared_config.setdefault("federation_sender_instances", []).append(worker_name)
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if "event_persister" in worker_types_set:
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# Event persisters write to the events stream, so we need to update
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# the list of event stream writers
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shared_config.setdefault("stream_writers", {}).setdefault("events", []).append(
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worker_name
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)
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# Map of stream writer instance names to host/ports combos
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if os.environ.get("SYNAPSE_USE_UNIX_SOCKET", False):
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instance_map[worker_name] = {
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"path": f"/run/worker.{worker_port}",
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}
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else:
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instance_map[worker_name] = {
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"host": "localhost",
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"port": worker_port,
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}
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# Update the list of stream writers. It's convenient that the name of the worker
|
|
# type is the same as the stream to write. Iterate over the whole list in case there
|
|
# is more than one.
|
|
for worker in worker_types_set:
|
|
if worker in singular_stream_writers:
|
|
shared_config.setdefault("stream_writers", {}).setdefault(
|
|
worker, []
|
|
).append(worker_name)
|
|
|
|
# Map of stream writer instance names to host/ports combos
|
|
# For now, all stream writers need http replication ports
|
|
if os.environ.get("SYNAPSE_USE_UNIX_SOCKET", False):
|
|
instance_map[worker_name] = {
|
|
"path": f"/run/worker.{worker_port}",
|
|
}
|
|
else:
|
|
instance_map[worker_name] = {
|
|
"host": "localhost",
|
|
"port": worker_port,
|
|
}
|
|
|
|
|
|
def merge_worker_template_configs(
|
|
existing_dict: Optional[Dict[str, Any]],
|
|
to_be_merged_dict: Dict[str, Any],
|
|
) -> Dict[str, Any]:
|
|
"""When given an existing dict of worker template configuration consisting with both
|
|
dicts and lists, merge new template data from WORKERS_CONFIG(or create) and
|
|
return new dict.
|
|
|
|
Args:
|
|
existing_dict: Either an existing worker template or a fresh blank one.
|
|
to_be_merged_dict: The template from WORKERS_CONFIGS to be merged into
|
|
existing_dict.
|
|
Returns: The newly merged together dict values.
|
|
"""
|
|
new_dict: Dict[str, Any] = {}
|
|
if not existing_dict:
|
|
# It doesn't exist yet, just use the new dict(but take a copy not a reference)
|
|
new_dict = to_be_merged_dict.copy()
|
|
else:
|
|
for i in to_be_merged_dict.keys():
|
|
if (i == "endpoint_patterns") or (i == "listener_resources"):
|
|
# merge the two lists, remove duplicates
|
|
new_dict[i] = list(set(existing_dict[i] + to_be_merged_dict[i]))
|
|
elif i == "shared_extra_conf":
|
|
# merge dictionary's, the worker name will be replaced later
|
|
new_dict[i] = {**existing_dict[i], **to_be_merged_dict[i]}
|
|
elif i == "worker_extra_conf":
|
|
# There is only one worker type that has a 'worker_extra_conf' and it is
|
|
# the media_repo. Since duplicate worker types on the same worker don't
|
|
# work, this is fine.
|
|
new_dict[i] = existing_dict[i] + to_be_merged_dict[i]
|
|
else:
|
|
# Everything else should be identical, like "app", which only works
|
|
# because all apps are now generic_workers.
|
|
new_dict[i] = to_be_merged_dict[i]
|
|
return new_dict
|
|
|
|
|
|
def insert_worker_name_for_worker_config(
|
|
existing_dict: Dict[str, Any], worker_name: str
|
|
) -> Dict[str, Any]:
|
|
"""Insert a given worker name into the worker's configuration dict.
|
|
|
|
Args:
|
|
existing_dict: The worker_config dict that is imported into shared_config.
|
|
worker_name: The name of the worker to insert.
|
|
Returns: Copy of the dict with newly inserted worker name
|
|
"""
|
|
dict_to_edit = existing_dict.copy()
|
|
for k, v in dict_to_edit["shared_extra_conf"].items():
|
|
# Only proceed if it's the placeholder name string
|
|
if v == WORKER_PLACEHOLDER_NAME:
|
|
dict_to_edit["shared_extra_conf"][k] = worker_name
|
|
return dict_to_edit
|
|
|
|
|
|
def apply_requested_multiplier_for_worker(worker_types: List[str]) -> List[str]:
|
|
"""
|
|
Apply multiplier(if found) by returning a new expanded list with some basic error
|
|
checking.
|
|
|
|
Args:
|
|
worker_types: The unprocessed List of requested workers
|
|
Returns:
|
|
A new list with all requested workers expanded.
|
|
"""
|
|
# Checking performed:
|
|
# 1. if worker:2 or more is declared, it will create additional workers up to number
|
|
# 2. if worker:1, it will create a single copy of this worker as if no number was
|
|
# given
|
|
# 3. if worker:0 is declared, this worker will be ignored. This is to allow for
|
|
# scripting and automated expansion and is intended behaviour.
|
|
# 4. if worker:NaN or is a negative number, it will error and log it.
|
|
new_worker_types = []
|
|
for worker_type in worker_types:
|
|
if ":" in worker_type:
|
|
worker_type_components = split_and_strip_string(worker_type, ":", 1)
|
|
worker_count = 0
|
|
# Should only be 2 components, a type of worker(s) and an integer as a
|
|
# string. Cast the number as an int then it can be used as a counter.
|
|
try:
|
|
worker_count = int(worker_type_components[1])
|
|
except ValueError:
|
|
error(
|
|
f"Bad number in worker count for '{worker_type}': "
|
|
f"'{worker_type_components[1]}' is not an integer"
|
|
)
|
|
|
|
# As long as there are more than 0, we add one to the list to make below.
|
|
for _ in range(worker_count):
|
|
new_worker_types.append(worker_type_components[0])
|
|
|
|
else:
|
|
# If it's not a real worker_type, it will error out later.
|
|
new_worker_types.append(worker_type)
|
|
return new_worker_types
|
|
|
|
|
|
def is_sharding_allowed_for_worker_type(worker_type: str) -> bool:
|
|
"""Helper to check to make sure worker types that cannot have multiples do not.
|
|
|
|
Args:
|
|
worker_type: The type of worker to check against.
|
|
Returns: True if allowed, False if not
|
|
"""
|
|
return worker_type not in [
|
|
"background_worker",
|
|
"account_data",
|
|
"presence",
|
|
"receipts",
|
|
"typing",
|
|
"to_device",
|
|
]
|
|
|
|
|
|
def split_and_strip_string(
|
|
given_string: str, split_char: str, max_split: SupportsIndex = -1
|
|
) -> List[str]:
|
|
"""
|
|
Helper to split a string on split_char and strip whitespace from each end of each
|
|
element.
|
|
Args:
|
|
given_string: The string to split
|
|
split_char: The character to split the string on
|
|
max_split: kwarg for split() to limit how many times the split() happens
|
|
Returns:
|
|
A List of strings
|
|
"""
|
|
# Removes whitespace from ends of result strings before adding to list. Allow for
|
|
# overriding 'maxsplit' kwarg, default being -1 to signify no maximum.
|
|
return [x.strip() for x in given_string.split(split_char, maxsplit=max_split)]
|
|
|
|
|
|
def generate_base_homeserver_config() -> None:
|
|
"""Starts Synapse and generates a basic homeserver config, which will later be
|
|
modified for worker support.
|
|
|
|
Raises: CalledProcessError if calling start.py returned a non-zero exit code.
|
|
"""
|
|
# start.py already does this for us, so just call that.
|
|
# note that this script is copied in in the official, monolith dockerfile
|
|
os.environ["SYNAPSE_HTTP_PORT"] = str(MAIN_PROCESS_HTTP_LISTENER_PORT)
|
|
subprocess.run(["/usr/local/bin/python", "/start.py", "migrate_config"], check=True)
|
|
|
|
|
|
def parse_worker_types(
|
|
requested_worker_types: List[str],
|
|
) -> Dict[str, Set[str]]:
|
|
"""Read the desired list of requested workers and prepare the data for use in
|
|
generating worker config files while also checking for potential gotchas.
|
|
|
|
Args:
|
|
requested_worker_types: The list formed from the split environment variable
|
|
containing the unprocessed requests for workers.
|
|
|
|
Returns: A dict of worker names to set of worker types. Format:
|
|
{'worker_name':
|
|
{'worker_type', 'worker_type2'}
|
|
}
|
|
"""
|
|
# A counter of worker_base_name -> int. Used for determining the name for a given
|
|
# worker when generating its config file, as each worker's name is just
|
|
# worker_base_name followed by instance number
|
|
worker_base_name_counter: Dict[str, int] = defaultdict(int)
|
|
|
|
# Similar to above, but more finely grained. This is used to determine we don't have
|
|
# more than a single worker for cases where multiples would be bad(e.g. presence).
|
|
worker_type_shard_counter: Dict[str, int] = defaultdict(int)
|
|
|
|
# The final result of all this processing
|
|
dict_to_return: Dict[str, Set[str]] = {}
|
|
|
|
# Handle any multipliers requested for given workers.
|
|
multiple_processed_worker_types = apply_requested_multiplier_for_worker(
|
|
requested_worker_types
|
|
)
|
|
|
|
# Process each worker_type_string
|
|
# Examples of expected formats:
|
|
# - requested_name=type1+type2+type3
|
|
# - synchrotron
|
|
# - event_creator+event_persister
|
|
for worker_type_string in multiple_processed_worker_types:
|
|
# First, if a name is requested, use that — otherwise generate one.
|
|
worker_base_name: str = ""
|
|
if "=" in worker_type_string:
|
|
# Split on "=", remove extra whitespace from ends then make list
|
|
worker_type_split = split_and_strip_string(worker_type_string, "=")
|
|
if len(worker_type_split) > 2:
|
|
error(
|
|
"There should only be one '=' in the worker type string. "
|
|
f"Please fix: {worker_type_string}"
|
|
)
|
|
|
|
# Assign the name
|
|
worker_base_name = worker_type_split[0]
|
|
|
|
if not re.match(r"^[a-zA-Z0-9_+-]*[a-zA-Z_+-]$", worker_base_name):
|
|
# Apply a fairly narrow regex to the worker names. Some characters
|
|
# aren't safe for use in file paths or nginx configurations.
|
|
# Don't allow to end with a number because we'll add a number
|
|
# ourselves in a moment.
|
|
error(
|
|
"Invalid worker name; please choose a name consisting of "
|
|
"alphanumeric letters, _ + -, but not ending with a digit: "
|
|
f"{worker_base_name!r}"
|
|
)
|
|
|
|
# Continue processing the remainder of the worker_type string
|
|
# with the name override removed.
|
|
worker_type_string = worker_type_split[1]
|
|
|
|
# Split the worker_type_string on "+", remove whitespace from ends then make
|
|
# the list a set so it's deduplicated.
|
|
worker_types_set: Set[str] = set(
|
|
split_and_strip_string(worker_type_string, "+")
|
|
)
|
|
|
|
if not worker_base_name:
|
|
# No base name specified: generate one deterministically from set of
|
|
# types
|
|
worker_base_name = "+".join(sorted(worker_types_set))
|
|
|
|
# At this point, we have:
|
|
# worker_base_name which is the name for the worker, without counter.
|
|
# worker_types_set which is the set of worker types for this worker.
|
|
|
|
# Validate worker_type and make sure we don't allow sharding for a worker type
|
|
# that doesn't support it. Will error and stop if it is a problem,
|
|
# e.g. 'background_worker'.
|
|
for worker_type in worker_types_set:
|
|
# Verify this is a real defined worker type. If it's not, stop everything so
|
|
# it can be fixed.
|
|
if worker_type not in WORKERS_CONFIG:
|
|
error(
|
|
f"{worker_type} is an unknown worker type! Was found in "
|
|
f"'{worker_type_string}'. Please fix!"
|
|
)
|
|
|
|
if worker_type in worker_type_shard_counter:
|
|
if not is_sharding_allowed_for_worker_type(worker_type):
|
|
error(
|
|
f"There can be only a single worker with {worker_type} "
|
|
"type. Please recount and remove."
|
|
)
|
|
# Not in shard counter, must not have seen it yet, add it.
|
|
worker_type_shard_counter[worker_type] += 1
|
|
|
|
# Generate the number for the worker using incrementing counter
|
|
worker_base_name_counter[worker_base_name] += 1
|
|
worker_number = worker_base_name_counter[worker_base_name]
|
|
worker_name = f"{worker_base_name}{worker_number}"
|
|
|
|
if worker_number > 1:
|
|
# If this isn't the first worker, check that we don't have a confusing
|
|
# mixture of worker types with the same base name.
|
|
first_worker_with_base_name = dict_to_return[f"{worker_base_name}1"]
|
|
if first_worker_with_base_name != worker_types_set:
|
|
error(
|
|
f"Can not use worker_name: '{worker_name}' for worker_type(s): "
|
|
f"{worker_types_set!r}. It is already in use by "
|
|
f"worker_type(s): {first_worker_with_base_name!r}"
|
|
)
|
|
|
|
dict_to_return[worker_name] = worker_types_set
|
|
|
|
return dict_to_return
|
|
|
|
|
|
def generate_worker_files(
|
|
environ: Mapping[str, str],
|
|
config_path: str,
|
|
data_dir: str,
|
|
requested_worker_types: Dict[str, Set[str]],
|
|
) -> None:
|
|
"""Read the desired workers(if any) that is passed in and generate shared
|
|
homeserver, nginx and supervisord configs.
|
|
|
|
Args:
|
|
environ: os.environ instance.
|
|
config_path: The location of the generated Synapse main worker config file.
|
|
data_dir: The location of the synapse data directory. Where log and
|
|
user-facing config files live.
|
|
requested_worker_types: A Dict containing requested workers in the format of
|
|
{'worker_name1': {'worker_type', ...}}
|
|
"""
|
|
# Note that yaml cares about indentation, so care should be taken to insert lines
|
|
# into files at the correct indentation below.
|
|
|
|
# Convenience helper for if using unix sockets instead of host:port
|
|
using_unix_sockets = environ.get("SYNAPSE_USE_UNIX_SOCKET", False)
|
|
# First read the original config file and extract the listeners block. Then we'll
|
|
# add another listener for replication. Later we'll write out the result to the
|
|
# shared config file.
|
|
listeners: List[Any]
|
|
if using_unix_sockets:
|
|
listeners = [
|
|
{
|
|
"path": MAIN_PROCESS_UNIX_SOCKET_PRIVATE_PATH,
|
|
"type": "http",
|
|
"resources": [{"names": ["replication"]}],
|
|
}
|
|
]
|
|
else:
|
|
listeners = [
|
|
{
|
|
"port": MAIN_PROCESS_REPLICATION_PORT,
|
|
"bind_address": MAIN_PROCESS_LOCALHOST_ADDRESS,
|
|
"type": "http",
|
|
"resources": [{"names": ["replication"]}],
|
|
}
|
|
]
|
|
with open(config_path) as file_stream:
|
|
original_config = yaml.safe_load(file_stream)
|
|
original_listeners = original_config.get("listeners")
|
|
if original_listeners:
|
|
listeners += original_listeners
|
|
|
|
# The shared homeserver config. The contents of which will be inserted into the
|
|
# base shared worker jinja2 template. This config file will be passed to all
|
|
# workers, included Synapse's main process. It is intended mainly for disabling
|
|
# functionality when certain workers are spun up, and adding a replication listener.
|
|
shared_config: Dict[str, Any] = {"listeners": listeners}
|
|
|
|
# List of dicts that describe workers.
|
|
# We pass this to the Supervisor template later to generate the appropriate
|
|
# program blocks.
|
|
worker_descriptors: List[Dict[str, Any]] = []
|
|
|
|
# Upstreams for load-balancing purposes. This dict takes the form of the worker
|
|
# type to the ports of each worker. For example:
|
|
# {
|
|
# worker_type: {1234, 1235, ...}}
|
|
# }
|
|
# and will be used to construct 'upstream' nginx directives.
|
|
nginx_upstreams: Dict[str, Set[int]] = {}
|
|
|
|
# A map of: {"endpoint": "upstream"}, where "upstream" is a str representing what
|
|
# will be placed after the proxy_pass directive. The main benefit to representing
|
|
# this data as a dict over a str is that we can easily deduplicate endpoints
|
|
# across multiple instances of the same worker. The final rendering will be combined
|
|
# with nginx_upstreams and placed in /etc/nginx/conf.d.
|
|
nginx_locations: Dict[str, str] = {}
|
|
|
|
# Create the worker configuration directory if it doesn't already exist
|
|
os.makedirs("/conf/workers", exist_ok=True)
|
|
|
|
# Start worker ports from this arbitrary port
|
|
worker_port = 18009
|
|
|
|
# A list of internal endpoints to healthcheck, starting with the main process
|
|
# which exists even if no workers do.
|
|
# This list ends up being part of the command line to curl, (curl added support for
|
|
# Unix sockets in version 7.40).
|
|
if using_unix_sockets:
|
|
healthcheck_urls = [
|
|
f"--unix-socket {MAIN_PROCESS_UNIX_SOCKET_PUBLIC_PATH} "
|
|
# The scheme and hostname from the following URL are ignored.
|
|
# The only thing that matters is the path `/health`
|
|
"http://localhost/health"
|
|
]
|
|
else:
|
|
healthcheck_urls = ["http://localhost:8080/health"]
|
|
|
|
# Get the set of all worker types that we have configured
|
|
all_worker_types_in_use = set(chain(*requested_worker_types.values()))
|
|
# Map locations to upstreams (corresponding to worker types) in Nginx
|
|
# but only if we use the appropriate worker type
|
|
for worker_type in all_worker_types_in_use:
|
|
for endpoint_pattern in WORKERS_CONFIG[worker_type]["endpoint_patterns"]:
|
|
nginx_locations[endpoint_pattern] = f"http://{worker_type}"
|
|
|
|
# For each worker type specified by the user, create config values and write it's
|
|
# yaml config file
|
|
for worker_name, worker_types_set in requested_worker_types.items():
|
|
# The collected and processed data will live here.
|
|
worker_config: Dict[str, Any] = {}
|
|
|
|
# Merge all worker config templates for this worker into a single config
|
|
for worker_type in worker_types_set:
|
|
copy_of_template_config = WORKERS_CONFIG[worker_type].copy()
|
|
|
|
# Merge worker type template configuration data. It's a combination of lists
|
|
# and dicts, so use this helper.
|
|
worker_config = merge_worker_template_configs(
|
|
worker_config, copy_of_template_config
|
|
)
|
|
|
|
# Replace placeholder names in the config template with the actual worker name.
|
|
worker_config = insert_worker_name_for_worker_config(worker_config, worker_name)
|
|
|
|
worker_config.update(
|
|
{"name": worker_name, "port": str(worker_port), "config_path": config_path}
|
|
)
|
|
|
|
# Update the shared config with any worker_type specific options. The first of a
|
|
# given worker_type needs to stay assigned and not be replaced.
|
|
worker_config["shared_extra_conf"].update(shared_config)
|
|
shared_config = worker_config["shared_extra_conf"]
|
|
if using_unix_sockets:
|
|
healthcheck_urls.append(
|
|
f"--unix-socket /run/worker.{worker_port} http://localhost/health"
|
|
)
|
|
else:
|
|
healthcheck_urls.append("http://localhost:%d/health" % (worker_port,))
|
|
|
|
# Update the shared config with sharding-related options if necessary
|
|
add_worker_roles_to_shared_config(
|
|
shared_config, worker_types_set, worker_name, worker_port
|
|
)
|
|
|
|
# Enable the worker in supervisord
|
|
worker_descriptors.append(worker_config)
|
|
|
|
# Write out the worker's logging config file
|
|
log_config_filepath = generate_worker_log_config(environ, worker_name, data_dir)
|
|
|
|
# Then a worker config file
|
|
convert(
|
|
"/conf/worker.yaml.j2",
|
|
f"/conf/workers/{worker_name}.yaml",
|
|
**worker_config,
|
|
worker_log_config_filepath=log_config_filepath,
|
|
using_unix_sockets=using_unix_sockets,
|
|
)
|
|
|
|
# Save this worker's port number to the correct nginx upstreams
|
|
for worker_type in worker_types_set:
|
|
nginx_upstreams.setdefault(worker_type, set()).add(worker_port)
|
|
|
|
worker_port += 1
|
|
|
|
# Build the nginx location config blocks
|
|
nginx_location_config = ""
|
|
for endpoint, upstream in nginx_locations.items():
|
|
nginx_location_config += NGINX_LOCATION_CONFIG_BLOCK.format(
|
|
endpoint=endpoint,
|
|
upstream=upstream,
|
|
)
|
|
|
|
# Determine the load-balancing upstreams to configure
|
|
nginx_upstream_config = ""
|
|
for upstream_worker_base_name, upstream_worker_ports in nginx_upstreams.items():
|
|
body = ""
|
|
if using_unix_sockets:
|
|
for port in upstream_worker_ports:
|
|
body += f" server unix:/run/worker.{port};\n"
|
|
|
|
else:
|
|
for port in upstream_worker_ports:
|
|
body += f" server localhost:{port};\n"
|
|
|
|
# Add to the list of configured upstreams
|
|
nginx_upstream_config += NGINX_UPSTREAM_CONFIG_BLOCK.format(
|
|
upstream_worker_base_name=upstream_worker_base_name,
|
|
body=body,
|
|
)
|
|
|
|
# Finally, we'll write out the config files.
|
|
|
|
# log config for the master process
|
|
master_log_config = generate_worker_log_config(environ, "master", data_dir)
|
|
shared_config["log_config"] = master_log_config
|
|
|
|
# Find application service registrations
|
|
appservice_registrations = None
|
|
appservice_registration_dir = os.environ.get("SYNAPSE_AS_REGISTRATION_DIR")
|
|
if appservice_registration_dir:
|
|
# Scan for all YAML files that should be application service registrations.
|
|
appservice_registrations = [
|
|
str(reg_path.resolve())
|
|
for reg_path in Path(appservice_registration_dir).iterdir()
|
|
if reg_path.suffix.lower() in (".yaml", ".yml")
|
|
]
|
|
|
|
workers_in_use = len(requested_worker_types) > 0
|
|
|
|
# If there are workers, add the main process to the instance_map too.
|
|
if workers_in_use:
|
|
instance_map = shared_config.setdefault("instance_map", {})
|
|
if using_unix_sockets:
|
|
instance_map[MAIN_PROCESS_INSTANCE_NAME] = {
|
|
"path": MAIN_PROCESS_UNIX_SOCKET_PRIVATE_PATH,
|
|
}
|
|
else:
|
|
instance_map[MAIN_PROCESS_INSTANCE_NAME] = {
|
|
"host": MAIN_PROCESS_LOCALHOST_ADDRESS,
|
|
"port": MAIN_PROCESS_REPLICATION_PORT,
|
|
}
|
|
|
|
# Shared homeserver config
|
|
convert(
|
|
"/conf/shared.yaml.j2",
|
|
"/conf/workers/shared.yaml",
|
|
shared_worker_config=yaml.dump(shared_config),
|
|
appservice_registrations=appservice_registrations,
|
|
enable_redis=workers_in_use,
|
|
workers_in_use=workers_in_use,
|
|
using_unix_sockets=using_unix_sockets,
|
|
)
|
|
|
|
# Nginx config
|
|
convert(
|
|
"/conf/nginx.conf.j2",
|
|
"/etc/nginx/conf.d/matrix-synapse.conf",
|
|
worker_locations=nginx_location_config,
|
|
upstream_directives=nginx_upstream_config,
|
|
tls_cert_path=os.environ.get("SYNAPSE_TLS_CERT"),
|
|
tls_key_path=os.environ.get("SYNAPSE_TLS_KEY"),
|
|
using_unix_sockets=using_unix_sockets,
|
|
)
|
|
|
|
# Supervisord config
|
|
os.makedirs("/etc/supervisor", exist_ok=True)
|
|
convert(
|
|
"/conf/supervisord.conf.j2",
|
|
"/etc/supervisor/supervisord.conf",
|
|
main_config_path=config_path,
|
|
enable_redis=workers_in_use,
|
|
using_unix_sockets=using_unix_sockets,
|
|
)
|
|
|
|
convert(
|
|
"/conf/synapse.supervisord.conf.j2",
|
|
"/etc/supervisor/conf.d/synapse.conf",
|
|
workers=worker_descriptors,
|
|
main_config_path=config_path,
|
|
use_forking_launcher=environ.get("SYNAPSE_USE_EXPERIMENTAL_FORKING_LAUNCHER"),
|
|
)
|
|
|
|
# healthcheck config
|
|
convert(
|
|
"/conf/healthcheck.sh.j2",
|
|
"/healthcheck.sh",
|
|
healthcheck_urls=healthcheck_urls,
|
|
)
|
|
|
|
# Ensure the logging directory exists
|
|
log_dir = data_dir + "/logs"
|
|
if not os.path.exists(log_dir):
|
|
os.mkdir(log_dir)
|
|
|
|
|
|
def generate_worker_log_config(
|
|
environ: Mapping[str, str], worker_name: str, data_dir: str
|
|
) -> str:
|
|
"""Generate a log.config file for the given worker.
|
|
|
|
Returns: the path to the generated file
|
|
"""
|
|
# Check whether we should write worker logs to disk, in addition to the console
|
|
extra_log_template_args: Dict[str, Optional[str]] = {}
|
|
if environ.get("SYNAPSE_WORKERS_WRITE_LOGS_TO_DISK"):
|
|
extra_log_template_args["LOG_FILE_PATH"] = f"{data_dir}/logs/{worker_name}.log"
|
|
|
|
extra_log_template_args["SYNAPSE_LOG_LEVEL"] = environ.get("SYNAPSE_LOG_LEVEL")
|
|
extra_log_template_args["SYNAPSE_LOG_SENSITIVE"] = environ.get(
|
|
"SYNAPSE_LOG_SENSITIVE"
|
|
)
|
|
extra_log_template_args["SYNAPSE_LOG_TESTING"] = environ.get("SYNAPSE_LOG_TESTING")
|
|
|
|
# Render and write the file
|
|
log_config_filepath = f"/conf/workers/{worker_name}.log.config"
|
|
convert(
|
|
"/conf/log.config",
|
|
log_config_filepath,
|
|
worker_name=worker_name,
|
|
**extra_log_template_args,
|
|
include_worker_name_in_log_line=environ.get(
|
|
"SYNAPSE_USE_EXPERIMENTAL_FORKING_LAUNCHER"
|
|
),
|
|
)
|
|
return log_config_filepath
|
|
|
|
|
|
def main(args: List[str], environ: MutableMapping[str, str]) -> None:
|
|
parser = ArgumentParser()
|
|
parser.add_argument(
|
|
"--generate-only",
|
|
action="store_true",
|
|
help="Only generate configuration; don't run Synapse.",
|
|
)
|
|
opts = parser.parse_args(args)
|
|
|
|
config_dir = environ.get("SYNAPSE_CONFIG_DIR", "/data")
|
|
config_path = environ.get("SYNAPSE_CONFIG_PATH", config_dir + "/homeserver.yaml")
|
|
data_dir = environ.get("SYNAPSE_DATA_DIR", "/data")
|
|
|
|
# override SYNAPSE_NO_TLS, we don't support TLS in worker mode,
|
|
# this needs to be handled by a frontend proxy
|
|
environ["SYNAPSE_NO_TLS"] = "yes"
|
|
|
|
# Generate the base homeserver config if one does not yet exist
|
|
if not os.path.exists(config_path):
|
|
log("Generating base homeserver config")
|
|
generate_base_homeserver_config()
|
|
else:
|
|
log("Base homeserver config exists—not regenerating")
|
|
# This script may be run multiple times (mostly by Complement, see note at top of
|
|
# file). Don't re-configure workers in this instance.
|
|
mark_filepath = "/conf/workers_have_been_configured"
|
|
if not os.path.exists(mark_filepath):
|
|
# Collect and validate worker_type requests
|
|
# Read the desired worker configuration from the environment
|
|
worker_types_env = environ.get("SYNAPSE_WORKER_TYPES", "").strip()
|
|
# Only process worker_types if they exist
|
|
if not worker_types_env:
|
|
# No workers, just the main process
|
|
worker_types = []
|
|
requested_worker_types: Dict[str, Any] = {}
|
|
else:
|
|
# Split type names by comma, ignoring whitespace.
|
|
worker_types = split_and_strip_string(worker_types_env, ",")
|
|
requested_worker_types = parse_worker_types(worker_types)
|
|
|
|
# Always regenerate all other config files
|
|
log("Generating worker config files")
|
|
generate_worker_files(environ, config_path, data_dir, requested_worker_types)
|
|
|
|
# Mark workers as being configured
|
|
with open(mark_filepath, "w") as f:
|
|
f.write("")
|
|
else:
|
|
log("Worker config exists—not regenerating")
|
|
|
|
if opts.generate_only:
|
|
log("--generate-only: won't run Synapse")
|
|
return
|
|
|
|
# Lifted right out of start.py
|
|
jemallocpath = "/usr/lib/%s-linux-gnu/libjemalloc.so.2" % (platform.machine(),)
|
|
|
|
if os.path.isfile(jemallocpath):
|
|
environ["LD_PRELOAD"] = jemallocpath
|
|
else:
|
|
log("Could not find %s, will not use" % (jemallocpath,))
|
|
|
|
# Start supervisord, which will start Synapse, all of the configured worker
|
|
# processes, redis, nginx etc. according to the config we created above.
|
|
log("Starting supervisord")
|
|
flush_buffers()
|
|
os.execle(
|
|
"/usr/local/bin/supervisord",
|
|
"supervisord",
|
|
"-c",
|
|
"/etc/supervisor/supervisord.conf",
|
|
environ,
|
|
)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main(sys.argv[1:], os.environ)
|