Hulypulse in-memory config (#271)

Signed-off-by: Artem Savchenko <armisav@gmail.com>

README.md

@@ -440,15 +440,22 @@ Note that the `LIVEKIT_HOST` should include the protocol (`wss://` by default if
 
 ## HulyPulse (Push / real-time updates)
 
-HulyPulse provides WebSocket push notifications and real-time updates. It requires Redis.
+HulyPulse provides WebSocket push notifications and real-time updates.
 It will allow the following functions to work:
 - The knock and invite features in video calls
 - Information about who is viewing/editing objects right now
 - Shows that someone is typing a message in a chat.
 
+Since Huly platform version `v0.7.375`, HulyPulse supports an **in-memory backend**.
+By default, templates in this repository use:
 
-1. Enable Redis and HulyPulse in `compose.yml`:
-   - Uncomment the `redis` service.
+- `HULY_BACKEND=memory`
+
+This mode does not require Redis and is suitable for single-node or small self-hosted deployments.
+
+### Enabling HulyPulse (in-memory backend)
+
+1. Enable HulyPulse in `compose.yml`:
    - Uncomment the `hulypulse` service.
 
 2. Configure the `transactor` service:
@@ -483,7 +490,24 @@ It will allow the following functions to work:
     docker compose up -d --force-recreate
     ```
 
-Redis is configured with a 512 MB memory limit by default. For production you may want to set a Redis password and use `HULY_REDIS_URLS=redis://:YOUR_PASSWORD@redis:6379` in the `hulypulse` environment. The image tag uses `HULY_PULSE_VERSION` if set (default `0.1.29`).
+### Using Redis as backend (optional)
+
+Redis can be used as an alternative backend for HulyPulse – for example, in multi-node or higher-availability setups.
+
+1. Enable Redis and HulyPulse in `compose.yml`:
+   - Uncomment the `redis` service.
+   - Uncomment the `hulypulse` service.
+   - In the `hulypulse` environment, switch to Redis:
+
+     ```yaml
+     - HULY_BACKEND=redis
+     - HULY_REDIS_MODE=direct
+     - HULY_REDIS_URLS=redis://redis:6379
+     # or with password:
+     # - HULY_REDIS_URLS=redis://:YOUR_PASSWORD@redis:6379
+     ```
+
+2. Redis is configured with a 512 MB memory limit by default in the provided `compose.yml`. Adjust limits, password, and URLs as needed for your production setup. The image tag uses `HULY_PULSE_VERSION` if set (default `0.1.29`).
 
 ## Print Service
 

compose.yml

@@ -117,14 +117,15 @@ services:
   #     - HULY_LOG=info
   #     - HULY_TOKEN_SECRET=${SECRET}
   #     - HULY_HEARTBEAT_TIMEOUT=60
-  #     - HULY_REDIS_MODE=direct
-  #     - HULY_REDIS_URLS=redis://redis:6379
+  #     - HULY_BACKEND=memory
+  #     # For Redis backend instead of in-memory (optional, e.g. multi-node setups):
+  #     # - HULY_BACKEND=redis
+  #     # - HULY_REDIS_MODE=direct
+  #     # - HULY_REDIS_URLS=redis://redis:6379
   #   deploy:
   #     resources:
   #       limits:
   #         memory: 512M
-  #   depends_on:
-  #     - redis
   #   restart: unless-stopped
   #   networks:
   #     - huly_net