Several fixes and features

- Commit database transactions
- Listen to all interfaces by default
- Use logger in collerd
- Add docker-compose file with PostgreSQL

Signed-off-by: Julien Riou <julien@riou.xyz>

docker-compose.yml

@@ -0,0 +1,31 @@
+---
+services:
+  server:
+    image: coller:latest
+    build: .
+    container_name: collerd
+    restart: always
+    networks:
+      - coller
+    ports:
+      - "8080:8080"
+    volumes:
+      - "./docker/collerd.json:/etc/collerd.json:ro"
+    command: collerd -config /etc/collerd.json
+
+  db:
+    image: postgres:17
+    hostname: db
+    container_name: collerd_db
+    restart: always
+    env_file: docker/db.env
+    networks:
+      - coller
+    volumes:
+      - coller:/var/lib/postgresql/data
+
+networks:
+  coller:
+
+volumes:
+  coller: