Update dockerfile to include armv6/7 dependencies

Dockerfile

@@ -39,7 +39,11 @@ FROM python:3.7-slim-buster
 EXPOSE 5001/tcp
 
 # Upgrade base packages and install application dependencies.
-RUN apt-get update && \
+RUN case $(uname -m) in \
+    "armv6l") extra_packages="libatlas3-base libgfortran5" ;; \
+    "armv7l") extra_packages="libatlas3-base libgfortran5" ;; \
+  esac && \
+  apt-get update && \
   apt-get upgrade -y && \
   apt-get install -y \
   libeccodes0 \

horusmapper.cfg.example

@@ -166,8 +166,11 @@ tile_server_enabled = False
 
 # Path to map tiles. For FoxtrotGPS, this is usually ~/Maps/
 # NOTE: This must be an ABSOLUTE directory, i.e. /home/pi/Maps/ , using ~/Maps/ will not work.
+
 tile_server_path = /home/pi/Maps/
 
+# If running chasemapper within a docker container, comment out the above line, and uncomment the following:
+# tile_server_path = /opt/chasemapper/Maps/
 
 #
 # Habitat / SondeHub Chase-Car Position Upload