Add Docker support with Dockerfile and entrypoin

docker-compose.yml

@@ -0,0 +1,40 @@
+version: "3.9"
+
+networks:
+  photo26:
+
+services:
+  db:
+    image: postgres:16
+    container_name: photo26-db
+    restart: unless-stopped
+    environment:
+      POSTGRES_DB: photo26
+      POSTGRES_USER: photo26
+      POSTGRES_PASSWORD: change-me
+    volumes:
+      - ./postgres_data:/var/lib/postgresql/data
+    networks:
+      - photo26
+
+  photo26:
+    image: git.sinfonie.org/sinfonie/photo26:latest
+    container_name: photo26-app
+    restart: unless-stopped
+    depends_on:
+      - db
+    environment:
+      DB_ENGINE: postgres
+      DB_NAME: photo26
+      DB_USER: photo26
+      DB_PASSWORD: change-me
+      DB_HOST: db
+      DB_PORT: 5432
+      SECRET_KEY: change-me
+      EXTRA_HOSTS: photos.example.org
+    volumes:
+      - ./media:/app/media
+    ports:
+      - "8080:8000"
+    networks:
+      - photo26