feat: create directory in one go, don't use cache dir and use more standard entrypoint.sh

docker/entrypoint.sh

@@ -0,0 +1,22 @@
+#!/bin/bash
+
+set -eux
+
+cd /app
+
+AUTOMIGRATE=${AUTOMIGRATE:-yes}
+NUM_WORKERS_DEFAULT=$((2 * $(nproc --all)))
+export NUM_WORKERS=${NUM_WORKERS:-$NUM_WORKERS_DEFAULT}
+
+if [ "$AUTOMIGRATE" != "skip" ]; then
+  nf migrate --noinput
+fi
+
+exec gunicorn notfellchen.wsgi \
+    --name notfellchen \
+    --workers $NUM_WORKERS \
+    --max-requests 1200 \
+    --max-requests-jitter 50 \
+    --log-level=info \
+    --bind 0.0.0.0:7345
+