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Remove documentation of legacy frontend_proxy worker app (#13645)

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This has been the same as a generic_worker since #6964, so let's get rid of it.

Fixes #3717
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Richard van der Hoff 2022-08-30 18:01:51 +01:00 committed by GitHub
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changelog.d/13645.doc Normal file
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@ -0,0 +1 @@
Remove documentation of legacy `frontend_proxy` worker app.

2
docs/systemd-with-workers/workers/generic_worker.yaml
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@ -5,6 +5,8 @@ worker_name: generic_worker1
worker_replication_host: 127.0.0.1
worker_replication_http_port: 9093
worker_main_http_uri: http://localhost:8008/
worker_listeners:
- type: http
port: 8083

61
docs/workers.md
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@ -117,7 +117,7 @@ redis:
enabled: true
```
See the sample config for the full documentation of each option.
See the [configuration manual](usage/configuration/config_documentation.html) for the full documentation of each option.
Under **no circumstances** should the replication listener be exposed to the
public internet; replication traffic is:
@ -128,15 +128,15 @@ public internet; replication traffic is:
### Worker configuration
In the config file for each worker, you must specify the type of worker
application (`worker_app`), and you should specify a unique name for the worker
(`worker_name`). The currently available worker applications are listed below.
You must also specify the HTTP replication endpoint that it should talk to on
the main synapse process. `worker_replication_host` should specify the host of
the main synapse and `worker_replication_http_port` should point to the HTTP
replication port. If the worker will handle HTTP requests then the
`worker_listeners` option should be set with a `http` listener, in the same way
as the `listeners` option in the shared config.
In the config file for each worker, you must specify:
* The type of worker (`worker_app`). The currently available worker applications are listed below.
* A unique name for the worker (`worker_name`).
* The HTTP replication endpoint that it should talk to on the main synapse process
(`worker_replication_host` and `worker_replication_http_port`)
* If handling HTTP requests, a `worker_listeners` option with an `http`
listener, in the same way as the `listeners` option in the shared config.
* If handling the `^/_matrix/client/v3/keys/upload` endpoint, the HTTP URI for
the main process (`worker_main_http_uri`).
For example:
@ -220,10 +220,12 @@ information.
^/_matrix/client/(api/v1|r0|v3|unstable)/search$
# Encryption requests
# Note that ^/_matrix/client/(r0|v3|unstable)/keys/upload/ requires `worker_main_http_uri`
^/_matrix/client/(r0|v3|unstable)/keys/query$
^/_matrix/client/(r0|v3|unstable)/keys/changes$
^/_matrix/client/(r0|v3|unstable)/keys/claim$
^/_matrix/client/(r0|v3|unstable)/room_keys/
^/_matrix/client/(r0|v3|unstable)/keys/upload/
# Registration/login requests
^/_matrix/client/(api/v1|r0|v3|unstable)/login$
@ -584,39 +586,16 @@ handle it, and are online.
If `update_user_directory` is set to `false`, and this worker is not running,
the above endpoint may give outdated results.
### `synapse.app.frontend_proxy`
Proxies some frequently-requested client endpoints to add caching and remove
load from the main synapse. It can handle REST endpoints matching the following
regular expressions:
^/_matrix/client/(r0|v3|unstable)/keys/upload
If `use_presence` is False in the homeserver config, it can also handle REST
endpoints matching the following regular expressions:
^/_matrix/client/(api/v1|r0|v3|unstable)/presence/[^/]+/status
This "stub" presence handler will pass through `GET` request but make the
`PUT` effectively a no-op.
It will proxy any requests it cannot handle to the main synapse instance. It
must therefore be configured with the location of the main instance, via
the `worker_main_http_uri` setting in the `frontend_proxy` worker configuration
file. For example:
```yaml
worker_main_http_uri: http://127.0.0.1:8008
```
### Historical apps
*Note:* Historically there used to be more apps, however they have been
amalgamated into a single `synapse.app.generic_worker` app. The remaining apps
are ones that do specific processing unrelated to requests, e.g. the `pusher`
that handles sending out push notifications for new events. The intention is for
all these to be folded into the `generic_worker` app and to use config to define
which processes handle the various proccessing such as push notifications.
The following used to be separate worker application types, but are now
equivalent to `synapse.app.generic_worker`:
* `synapse.app.client_reader`
* `synapse.app.event_creator`
* `synapse.app.federation_reader`
* `synapse.app.frontend_proxy`
* `synapse.app.synchrotron`
## Migration from old config