Allow moving group read APIs to workers (#6866)

changelog.d/6866.feature

@@ -0,0 +1 @@
+Add ability to run some group APIs on workers.

docs/workers.md

@@ -177,8 +177,13 @@ endpoints matching the following regular expressions:
     ^/_matrix/federation/v1/event_auth/
     ^/_matrix/federation/v1/exchange_third_party_invite/
     ^/_matrix/federation/v1/send/
+    ^/_matrix/federation/v1/get_groups_publicised$
     ^/_matrix/key/v2/query
 
+Additionally, the following REST endpoints can be handled for GET requests:
+
+    ^/_matrix/federation/v1/groups/
+
 The above endpoints should all be routed to the federation_reader worker by the
 reverse-proxy configuration.
 
@@ -254,10 +259,13 @@ following regular expressions:
     ^/_matrix/client/(api/v1|r0|unstable)/keys/changes$
     ^/_matrix/client/versions$
     ^/_matrix/client/(api/v1|r0|unstable)/voip/turnServer$
+    ^/_matrix/client/(api/v1|r0|unstable)/joined_groups$
+    ^/_matrix/client/(api/v1|r0|unstable)/get_groups_publicised$
 
 Additionally, the following REST endpoints can be handled for GET requests:
 
     ^/_matrix/client/(api/v1|r0|unstable)/pushrules/.*$
+    ^/_matrix/client/(api/v1|r0|unstable)/groups/.*$
 
 Additionally, the following REST endpoints can be handled, but all requests must
 be routed to the same instance:

synapse/app/client_reader.py

@@ -57,6 +57,7 @@
     RoomStateRestServlet,
 )
 from synapse.rest.client.v1.voip import VoipRestServlet
+from synapse.rest.client.v2_alpha import groups
 from synapse.rest.client.v2_alpha.account import ThreepidRestServlet
 from synapse.rest.client.v2_alpha.keys import KeyChangesServlet, KeyQueryServlet
 from synapse.rest.client.v2_alpha.register import RegisterRestServlet
@@ -124,6 +125,8 @@ def _listen_http(self, listener_config):
                     PushRuleRestServlet(self).register(resource)
                     VersionsRestServlet(self).register(resource)
 
+                    groups.register_servlets(self, resource)
+
                     resources.update({"/_matrix/client": resource})
 
         root_resource = create_resource_tree(resources, NoResource())

synapse/app/federation_reader.py

@@ -35,6 +35,7 @@
 from synapse.replication.slave.storage.appservice import SlavedApplicationServiceStore
 from synapse.replication.slave.storage.directory import DirectoryStore
 from synapse.replication.slave.storage.events import SlavedEventStore
+from synapse.replication.slave.storage.groups import SlavedGroupServerStore
 from synapse.replication.slave.storage.keys import SlavedKeyStore
 from synapse.replication.slave.storage.profile import SlavedProfileStore
 from synapse.replication.slave.storage.push_rule import SlavedPushRuleStore
@@ -66,6 +67,7 @@ class FederationReaderSlavedStore(
     SlavedEventStore,
     SlavedKeyStore,
     SlavedRegistrationStore,
+    SlavedGroupServerStore,
     RoomStore,
     DirectoryStore,
     SlavedTransactionStore,