HowTo run commands on multiple nodes¶

Ansible Console¶

make console

Then enter the command(s) you want to run.

Example

root@all (4)[f:5]$ uptime

metal0 | CHANGED | rc=0 >>
 10:52:02 up 2 min,  1 user,  load average: 0.17, 0.15, 0.06
metal1 | CHANGED | rc=0 >>
 10:52:02 up 2 min,  1 user,  load average: 0.14, 0.11, 0.04
metal3 | CHANGED | rc=0 >>
 10:52:02 up 2 min,  1 user,  load average: 0.03, 0.02, 0.00
metal2 | CHANGED | rc=0 >>
 10:52:02 up 2 min,  1 user,  load average: 0.06, 0.06, 0.02

SSH¶

You can run commands on nodes using ssh. To execute a command on all hosts, use run make target with CMD input:

Example

make run CMD='hostname'

draupnir
done hostname on draupnir
freyja
done hostname on freyja
heimdall
done hostname on heimdall
megingjord
done hostname on megingjord
odin
done hostname on odin