| #!/bin/bash |
| |
| if [ -z "$1" ]; then |
| echo "command not found" |
| echo "Usage: $0 <ssh command> [regions]" |
| echo " where ssh command is the command to run at each instance" |
| echo " where regions is an option list of regions to use, such as eu-west-1 us-east-1; defaults to all regions" |
| exit 1 |
| fi |
| |
| CMD=$1 |
| shift |
| |
| INSTANCES=`cat instances.txt | cut -d " " -f3-` |
| |
| if [ -n "$*" ]; then |
| INSTANCES="" |
| for region in $* ; do |
| INSTANCE=`grep $region instances.txt | cut -d " " -f3-` |
| INSTANCES=${INSTANCES}${INSTANCE}' ' |
| done |
| fi |
| |
| for instance in $INSTANCES ; do |
| echo invoking $CMD at $instance |
| ssh -f root@$instance "$CMD" | awk '{print "OUTPUT '$instance': " $0}' & |
| done |
| |
| wait |
