Add dev docker-compose and dev Dockerfile wip

Dockerfile.dev

@@ -0,0 +1,14 @@
+FROM alpine:3.8
+
+ADD ["./requirements.txt", "/requirements.txt"]
+RUN apk add --update --no-cache python3 postgresql-dev py3-psycopg2 && \
+	pip3 install -r /requirements.txt && \
+	rm /requirements.txt && \
+	adduser -D app
+
+WORKDIR /app
+
+CMD ["python3", "-u", "/app/main.py"]
+
+EXPOSE 5000
+USER app

docker-compose.yml

@@ -1,16 +1,15 @@
 version: "3"
 
-networks:
-  db_net:
-    external: true
-
 services:
   codimd_note_overview:
-    build: .
+    build:
+      context: .
+      dockerfile: Dockerfile.dev
     image: docker.wiai.de/fswiai/codimd_notes_overview:0.1
     ports:
     - 8080:5000
-    networks:
-    - db_net
     env_file:
-    - /home/michigg/Nextcloud/Documents/OFU_Fachschaft/Server/hackmd_overview_addon/hackmd/docker.env
+    - ./docker.env
+    volumes:
+      - ./src:/app
+