Useful-commands.md

@@ -13,15 +13,13 @@ journalctl -eu systemd-nspawn@xcache [--since ...]
 ```
 
 # container commands
-run a command in a new container using the xcache image (as xrootd user)  
-*(currently not working since we run on read/write image)*
+run a command in a temporary container using the xcache image (as xrootd user)  
 ```bash
-systemd-nspawn -D /var/lib/machines/xcache <command>
+systemd-nspawn --volatile=overlay -M xcache-$(uuidgen) --private-users=655360 -u xrootd -D /var/lib/machines/xcache <command>
 ```
 get a shell (as xrootd user)  
-*(currently not working since we run on read/write image)*
 ```bash
-systemd-nspawn -D /var/lib/machines/xcache /bin/bash
+systemd-nspawn --volatile=overlay -M xcache-$(uuidgen) --private-users=655360 -u xrootd -D /var/lib/machines/xcache /bin/bash
 ```
 get a shell in a running container (as root, usually not nescessary)
 ```