Fix nginx read-only filesystem issues

start.sh

@@ -55,6 +55,9 @@ if [[ ! -f "/app/data/root_credentials" ]]; then
     chmod 600 /app/data/root_credentials
 fi
 
+echo "==> Creating nginx temp directories"
+mkdir -p /tmp/nginx/body /tmp/nginx/fastcgi /tmp/nginx/proxy /tmp/nginx/scgi /tmp/nginx/uwsgi
+
 echo "==> Starting nginx"
 nginx -t
 nginx