helm repo add code-tool https://code-tool.github.io/matrix-stack/
synapse- for setting up matrix workers, MAS, sliding-sync, admin componentldap- for setting up LDAP proxysentry-webhook- for webhook from sentry to matrix chatwebhook- for webhook from slack-compatible clients to matrix chatmatrix-alertmanager-receiver- for webhook from Prometheus Alertmanager to matrix chatlivekit-jwt- for LiveKit management servicecompress-state- experimental tools that attempt to reduce the number of rows in the state_groups_state table inside of a Synapse Postgresql database
The core of synapse monolith distribution is complex regexp routing to particular workers.
Worker types
Most common worker type: can read data, respond to HTTP API, client and federation requests. Has no streams and cannot write any stream by itself.
A generic worker can be:
- reader - client_reader, federation_reader, sync, room
- stream writer - if configured in the stream_writers section
- both simultaneously
generic_worker is not an architecture type - it is a behavior type determined by config.
Not a separate app type - this is a role for a generic worker when it is listed in stream_writers. The stream writer owns a Redis stream exclusively; other workers write to that stream by sending HTTP requests to it.
Requirements:
- must be in instance_map
- must have a replication listener (port 9093)
Singleton streams (one writer only): typing, to_device, account_data, presence, push_rules
Scalable streams (round-robin across multiple writers): receipts, device_lists, thread_subscriptions, quarantined_media, events
The only distinct worker app type, different from generic_worker:
- uses media-specific headers
- responds to /_matrix/media/, /_matrix/client/v1/media/, /_matrix/federation/v1/media/
- can have a background job: media_instance_running_background_jobs
- cannot be a stream writer
- cannot respond to any client/federation endpoints
Generic workers with no HTTP endpoints:
- background - singleton; stats, media cleanup, user directory updates
- pusher - pusher_instances: [pusher1, pusher2]; sends push notifications
- federation_sender - federation_sender_instances: [sender1, sender2]; outbound federation only
Worker reference table
| worker | type | scalable | possible lb algo | http |
|---|---|---|---|---|
| typing | stream writer | no | - | yes |
| to_device | stream writer | no | - | yes |
| account_data | stream writer | no | - | yes |
| presence | stream writer | no | - | yes |
| push_rules | stream writer | no | - | yes |
| receipts | stream writer | yes | round-robin | yes |
| device_lists | stream writer | yes | round-robin | yes |
| thread_subscriptions | stream writer | yes | round-robin | yes |
| quarantined_media_changes | stream writer | yes | round-robin (?) | yes |
| events (persister) | stream writer | yes | shard by room_id | yes |
| media_repository | app | yes | least_conn | yes |
| media_instance_running_background_jobs | app | no | - | no |
| room_worker | generic | yes | hash by room_id | yes |
| sync_worker | generic | yes | hash by user_id | yes |
| federation_reader | generic | yes | hash by source ip | yes |
| client_reader | generic | yes | least_conn | yes |
| user_dir | generic | no | - | yes |
| background_worker | generic | no | - | no |
| pusher | generic | yes | shard by user | no |
| federation_sender | generic | yes | shard by destination | no |