build: update deployment for Docker

deploy/templates/Caddyfile.j2

@@ -0,0 +1,15 @@
+:80 :443 {
+    root * /srv
+    file_server
+
+    @proxy_paths {
+        not path /static/*
+    }
+
+    reverse_proxy @proxy_paths http://web:8000
+
+    log {
+        output stderr
+        format single_field common_log
+    }
+}

deploy/templates/docker-compose.yml.j2

@@ -0,0 +1,35 @@
+version: '3.1'
+
+services:
+  web:
+    image: breccia-mapper
+    build: {{ project_src_dir }}
+    ports:
+      - 8000:8000
+    environment:
+      DEBUG: {{ django_settings.debug }}
+      DATABASE_URL: sqlite:////app/db.sqlite3
+      SECRET_KEY: {{ django_settings.secret_key }}
+    volumes:
+      - ./db.sqlite3:/app/db.sqlite3:z
+      - static_files:/app/static
+
+  caddy:
+    image: caddy:2
+    restart: unless-stopped
+    ports:
+      - 80:80
+      - 443:443
+    volumes:
+      - ./Caddyfile:/etc/caddy/Caddyfile:z
+      # Caddy serves static files collected by Django
+      - static_files:/srv/static:ro
+      - caddy_data:/data
+      - caddy_config:/config
+    depends_on:
+      - web
+
+volumes:
+  caddy_data:
+  caddy_config:
+  static_files: