Add basic simpleid configuration
diff --git a/simpleid/Dockerfile.entrypoint b/simpleid/Dockerfile.entrypoint
new file mode 100644
index 0000000..f98185b
--- /dev/null
+++ b/simpleid/Dockerfile.entrypoint
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+set -e
+
+chown -R www-data:www-data /var/cache/simpleid/
+chown -R www-data:www-data /var/lib/simpleid/
+chown -R www-data:www-data /var/log/
+
+exec docker-php-entrypoint php-fpm "$@"