First draft of Dockerfile overhaul.

Dockerfile

@@ -2,6 +2,20 @@ FROM python:3
 
 WORKDIR /usr/src/app
 COPY requirements.txt ./
-COPY src ./src
-COPY create_poster.py ./
-RUN pip install --no-cache-dir -r requirements.txt
+COPY ./ /usr/src/app/
+
+RUN pip install --upgrade pip wheel && \
+    pip install --upgrade -r requirements.txt && \
+    pip install .
+
+RUN \
+    rm -rf /usr/src/app/.git* && \
+    rm -rf /usr/src/app/examples && \
+    rm -rf /usr/src/app/venv
+
+RUN apt-get purge -y \
+        make \
+        gcc &&\
+    apt-get autoremove -y && \
+    apt-get autoclean -y && \
+    apt-get clean all

README.md

@@ -15,6 +15,11 @@ Create a visually appealing poster from your GPX tracks - heavily inspired by ht
 7. Run `create_poster` (see above)
 8. Deactivate virtualenv: `deactivate`
 
+### Container
+There is a Dockerfile in this repository, which you can use to run this software.
+1. Build the container: `podman build -f Dockerfile -t gpxtrackposter:latest`
+2. Run the container to build your poster: `podman run --rm -v /my/gpx/files:/gpx --name gpxtrackposter localhost/gpxtrackposter:latest  create_poster --gpx-dir /gpx --output /gpx/poster.svg`
+
 ## Usage
 First of all, you need directory with a bunch of GPX files (e.g. you can export all your tracks from Garmin Connect with the excellent tool [garmin-connect-export](https://github.com/kjkjava/garmin-connect-export), or use [StravaExportToGPX](https://github.com/flopp/StravaExportToGPX), or use [runtastic](https://github.com/yihong0618/Runtastic), or use [nrc-exporter](https://github.com/yasoob/nrc-exporter) to convert the activities in a Strava or Runtastic or `Nike Run Club` export zip file to GPX or GPX files).