moved config steps into separate scripts

rootfs/app/entrypoint.sh.d/90_stats.sh

@@ -0,0 +1,33 @@
+#!/bin/sh
+
+echo "# Configuring stats"
+
+# make sure paths exists
+mkdir -p "${PATH_AUTH}" "${PATH_STATS}" "${PATH_STATSDB}"
+touch "${PATH_AUTH}/stats"
+chown -R "${USERNAME}:${GROUPNAME}" "${PATH_AUTH}" "${PATH_STATS}" "${PATH_STATSDB}"
+
+# stats endpoint
+cat > /etc/nginx/http.d/stats.conf <<EOF
+server {
+    listen ${STATS_PORT} default_server;
+    listen [::]:${STATS_PORT} default_server;
+    root ${PATH_STATS};
+
+    location = / {
+        index index.html;
+        try_files /index.html =404;
+    }
+
+    location /index.html {
+        try_files /index.html =404;
+    }
+
+    location / {
+        return 404;
+    }
+
+    auth_basic "Restricted area";
+    auth_basic_user_file ${PATH_AUTH}/stats;
+}
+EOF