The `df` command can stall indefinitely on stale NFS mounts,
causing the playbook to time out. This leads to the entire job
failing with POST_FAILURE status, discarding controller logs
and impacting troubleshooting.
This patch changes `capture-system-logs` to run `df` with a 60s
timeout to prevent hangs from stale NFS mounts. If 'df' times out,
the mount output may help debug which NFS share is unresponsive.
Change-Id: Ife3945802c93bd77d60b60e433ea09aade38a522
Signed-off-by: Fernando Ferraz <fernandoperches@gmail.com>