Update Docker to use Flask-based app

Dockerfile

@@ -2,8 +2,7 @@ FROM lsiobase/alpine:3.9
 
 LABEL maintainer 'Sam Burney <sam@burney.io>'
 
-ENV GALDIR_LISTEN=0.0.0.0:6543 \
-    GALDIR_SITENAME=GalDir \
+ENV GALDIR_SITENAME="GalDir Docker" \
     GALDIR_ALBUMS=albums \
     GALDIR_CACHE=cache \
     GALDIR_IMAGES_PERPAGE=12

docker/root/etc/cont-init.d/20-handle-env

 #!/usr/bin/with-contenv bash
 
-# Handle GALDIR_LISTEN GALDIR_SITENAME GALDIR_ALBUMS GALDIR_CACHE GALDIR_IMAGES_PERPAGE env variables
-cat /usr/local/share/galdir/config.ini \
-    | sed -E "s/(listen = ).*/\1${GALDIR_LISTEN}/" \
-    | sed -E "s/(galdir.sitename = ).*/\1${GALDIR_SITENAME}/" \
-    | sed -E "s/(galdir.dir_albums = ).*/\1${GALDIR_ALBUMS}/" \
-    | sed -E "s/(galdir.dir_cache = ).*/\1${GALDIR_CACHE}/" \
-    | sed -E "s/(galdir.images_perpage = ).*/\1${GALDIR_IMAGES_PERPAGE}/" \
-    > /usr/local/share/galdir/production.ini
\ No newline at end of file
+config_file=/usr/local/share/galdir/galdir/config.py
+
+# Initial config.py setup
+echo "DEBUG=False" > $config_file
+echo "SECRET_KEY=$(python3 -c 'import os; print(os.urandom(16))')" >> $config_file
+
+# Handle all GALDIR_* environment variables
+for var in ${!GALDIR_*} ; do
+    echo $var=\""${!var}"\" >> $config_file
+done

docker/root/etc/services.d/galdir/run

 #!/usr/bin/with-contenv bash
 
-# If config file exists, start daemon
-if [ -f /usr/local/share/galdir/production.ini ] ; then
-    echo "Starting GalDir Web Server"
+echo "Starting GalDir Web Server"
 
-    exec \
-        pserve /usr/local/share/galdir/production.ini
-else
-    echo /usr/local/share/galdir/production.ini config file is missing
-fi
-
-exit 1
+exec \
+    waitress-serve --listen=0.0.0.0:6543 --call 'galdir:create_app'