Made the volume be just the config file. Created a dockercompose file.

Dockerfile

 FROM python:3.3-slim
 MAINTAINER Allan Tribe <atribe13@gmail.com>
 
-VOLUME /src
+VOLUME /src/config.ini
 ADD . /src
 WORKDIR /src
 

docker-compose.yml

+version: '2'
+services:
+  speedtest:
+    image: atribe/Speedtest-for-InfluxDB-and-Grafana
+    container_name: speedtest
+    volumes:
+      - ./config.ini:/src/config.ini
+    restart: always