🔧(compose) share the backend redis with the summary stack

The summary settings already default to the `redis` host, so
`redis-summary` was unused. Remove it and depend on `redis`.

Pin the summary Celery and task tracker URLs to DB 2 in
`summary.dist` to isolate them from LiveKit and the backend
Celery broker (DB 0) and the Django cache (DB 1).

CHANGELOG.md

@@ -95,7 +95,7 @@ and this project adheres to
 
 ### Fixed
 
-- 🐛(helm) probe liveness on __lbheartbeat__ and readiness on __heartbeat__
+- 🐛(helm) probe liveness on **lbheartbeat** and readiness on **heartbeat**
 - 🐛(helm) render periodSeconds and failureThreshold on probes
 - 🐛(backend) report the app release to Sentry instead of "NA"
 - 🐛(frontend) play the waiting room notification sound on every arrival

Makefile

@@ -169,7 +169,7 @@ run-summary: ## start only the summary application and all needed services
 	@$(COMPOSE) up --force-recreate -d celery-summary-summarize
 .PHONY: run-summary
 
-run-agents: ## start the LiveKit agents (opt-in, see docs/developping_locally.md)
+run-agents: ## start the multi-user-transcriber agent
 	@$(MAKE) run-agent-multi-user-transcriber
 	@$(MAKE) run-agent-metadata-collector
 .PHONY: run-agents
@@ -186,6 +186,7 @@ run:
 run: ## start the wsgi (production) and development server
 	@$(MAKE) run-backend
 	@$(MAKE) run-summary
+	@$(MAKE) run-agents
 	@$(COMPOSE) up --force-recreate -d frontend
 .PHONY: run
 

docs/developping_locally.md

@@ -107,37 +107,6 @@ $ npm i
 $ npm run dev
 ```
 
-### LiveKit agents (optional)
-
-The LiveKit agents are not started by `make run`. Each one runs its own
-container and stays connected to LiveKit, which costs CPU and memory you
-don't need unless you work on the features they power. Start them only
-when you need them.
-
-| Agent | Feature | Make command | Setting in `env.d/development/common` |
-|---|---|---|---|
-| `metadata-collector-dev` | Recording metadata (used to identify speakers in transcripts) | `make run-agent-metadata-collector` | `METADATA_COLLECTOR_ENABLED=True` |
-| `multi-user-transcriber-dev` | Live subtitles | `make run-agent-multi-user-transcriber` | `ROOM_SUBTITLE_ENABLED=True` |
-
-To start both at once:
-```shellscript
-$ make run-agents
-```
-
-Then set the matching settings to `True` and restart the backend so it
-picks them up:
-```shellscript
-$ make run-backend
-```
-
-The multi-user transcriber also needs a speech-to-text provider. Configure
-`STT_PROVIDER` and its credentials in
-`env.d/development/multi_user_transcriber`.
-
-Keep the settings and the agents in sync: if a setting is `True` while its
-agent is stopped, the backend still dispatches jobs to it and the feature
-fails silently.
-
 ---
 
 ## Adding Content

env.d/development/common.dist

@@ -104,11 +104,10 @@ ROOM_TELEPHONY_ENABLED=True
 # ROOMKIT_ENABLED = True
 # ROOMKIT_SERVER_TO_SERVER_API_TOKEN = ThisIsAnExampleKeyForDevPurposeOnly
 
-# LiveKit agents (opt-in, start them with `make run-agents`)
-# Metadata (requires the metadata-collector agent)
-METADATA_COLLECTOR_ENABLED=False
+# Metadata
+METADATA_COLLECTOR_ENABLED=True
 
-# Subtitle (requires the multi-user-transcriber agent)
+# Subtitle
 ROOM_SUBTITLE_ENABLED=False
 
 FRONTEND_USE_FRENCH_GOV_FOOTER=False