Add initial Docker Compose file

Author: pedrosanta

AGENTS.md

@@ -4,4 +4,8 @@ This repository is an experiment with Open WebUI and Docker to use Scaleway serv
 
 At the moment I am trying to create a sample/example Dockerfile to run Open WebUI with a remote database (through environment variables) that is hosted on Scaleway serverless DB service. My idea is to test this sample Dockerfile locally and then try to move it to Scaleway managed container service and possibly have a serverless service to run Open WebUI.
 
-Open WebUI will also need information about the models, and I also expect to use a serverless inference service (with an OpenAI compatible API) from Nscale.
+Open WebUI will also need information about the models, and I also expect to use a serverless inference service (with an OpenAI compatible API) from Nscale.
+
+## Additional context for current `dockerfile` branch
+
+I am putting up the Dockerfile, but Docker Compose is more convenient, so I will only need a `docker-compose.yml` and won't need a `Dockerfile` for now.

README.md

@@ -1,3 +1,15 @@
 # openwebui-docker-sandbox
 
-An experiment with Open WebUI and Docker to use Scaleway serverless infrastructure.
+An experiment with Open WebUI and Docker to use Scaleway serverless infrastructure.
+
+## Usage
+
+This sandbox/example uses Docker Compose for convenience.
+
+Make sure you have your Docker Engine/runtime/daemon running and use the following command to run:
+
+```shell
+docker compose up
+```
+
+Open http://localhost:8080 on your browser.

docker-compose.yml

@@ -0,0 +1,11 @@
+services:
+  open-webui:
+    image: ghcr.io/open-webui/open-webui:main
+    container_name: openwebui-docker-sandbox
+    ports:
+      - "8080:8080"
+    volumes:
+      - open-webui:/app/backend/data
+
+volumes:
+  open-webui: