Updates to user/group determination after recent changes to v2 branch

docker/rootfs/etc/s6-overlay/s6-rc.d/prepare/20-paths.sh

@@ -0,0 +1,24 @@
+#!/command/with-contenv bash
+# shellcheck shell=bash
+
+set -e
+
+log_info 'Checking paths ...'
+
+# Ensure /data is mounted
+if [ ! -d '/data' ]; then
+	log_fatal '/data is not mounted! Check your docker configuration.'
+fi
+
+# Create required folders
+mkdir -p /tmp/nginx/body \
+	/run/nginx \
+	/var/log/nginx \
+	/var/lib/nginx/cache/public \
+	/var/lib/nginx/cache/private \
+	/var/cache/nginx/proxy_temp \
+	/data/logs
+
+touch /var/log/nginx/error.log || true
+chmod 777 /var/log/nginx/error.log || true
+chmod -R 777 /var/cache/nginx || true