Document Docker Compose deployment

Author: tces1

README.md

@@ -24,6 +24,44 @@ go run ./cmd/emby-transcoder -config config.example.json
 
 Point a client at the proxy listen address, for example `http://linux-host:8097`.
 
+## Docker Compose
+
+The published linux/amd64 image is available as `tces1/emby_transcoder:latest`.
+
+```bash
+cd docker
+mkdir -p data/transcode
+cp config/config.json config/config.local.json
+```
+
+Edit `docker/config/config.local.json` before starting:
+
+- set `upstream.url` to your Emby or Jellyfin server
+- set `server.public_url` if clients reach the proxy through another reverse proxy
+- leave `server.debug` as `false` for concise logs, or set it to `true` for detailed diagnostics
+
+Update `docker/docker-compose.yml` to mount the local config file if you use `config.local.json`:
+
+```yaml
+volumes:
+  - ./config/config.local.json:/app/config/config.json:ro
+  - ./data/transcode:/var/lib/emby-transcoder/transcode
+```
+
+Start or update the service:
+
+```bash
+docker compose pull
+docker compose up -d
+docker compose logs -f
+```
+
+Stop the service:
+
+```bash
+docker compose down
+```
+
 ## Build
 
 ```bash

docker/README.md

@@ -3,7 +3,7 @@
 ## Files
 
 - `Dockerfile`: multi-stage image build for EmbyTranscoder plus runtime `ffmpeg`
-- `docker-compose.yml`: local container run setup
+- `docker-compose.yml`: container run setup using `tces1/emby_transcoder:latest`
 - `config/config.json`: container config template
 
 ## Run
@@ -12,12 +12,13 @@ From the `docker/` directory:
 
 ```bash
 mkdir -p data/transcode
-docker compose up --build -d
+docker compose pull
+docker compose up -d
 ```
 
 ## Configure
 
-Edit `config/config.json` before startup:
+Edit `config/config.json` before startup, or copy it to `config/config.local.json` and update the compose volume:
 
 - set `upstream.url` to your Emby or Jellyfin server
 - set `server.public_url` if clients reach the proxy through another reverse proxy
@@ -26,3 +27,11 @@ Edit `config/config.json` before startup:
 For GitHub Actions publishing to Docker Hub, set `DOCKERHUB_USERNAME` and `DOCKERHUB_TOKEN` in the repository secrets.
 
 The transcode cache is stored in `docker/data/transcode`.
+
+## Operations
+
+```bash
+docker compose logs -f
+docker compose restart
+docker compose down
+```

docker/docker-compose.yml

@@ -1,8 +1,6 @@
 services:
   emby-transcoder:
-    build:
-      context: ..
-      dockerfile: docker/Dockerfile
+    image: tces1/emby_transcoder:latest
     container_name: emby-transcoder
     restart: unless-stopped
     ports: