cluster_telemetry/telemetry_master_scripts/vm_run_command_with_output_on_slaves.sh

#!/bin/bash
#
# Runs a specified command on all slaves.
#
# The script should be run from the cluster-telemetry-master GCE instance's
# /b/skia-repo/buildbot/cluster_telemetry/telemetry_master_scripts
# directory.
#
# Copyright 2013 Google Inc. All Rights Reserved.
# Author: rmistry@google.com (Ravi Mistry)

source ../config.sh

if [ $# -ne 1 ]; then
  echo
  echo "Usage: `basename $0` \"pkill -9 -f tools/perf/record_wpr\""
  echo
  echo "The first argument is the command that should be run on all the slaves."
  echo
  exit 1
fi

CMD=$1

# Update buildbot.
gclient sync

echo "About to run $CMD on all slaves..."
for SLAVE_NUM in $(seq 1 $NUM_SLAVES); do
  echo
  echo "Running the cmd on cluster-telemetry-worker$SLAVE_NUM..."
  cmd_output=`ssh -o UserKnownHostsFile=/dev/null -o CheckHostIP=no \
    -o StrictHostKeyChecking=no \
    -A -q -p 22 build${SLAVE_NUM}-m5 -- "$CMD"`
  if [ "$cmd_output" ]; then
    echo "===== cluster-telemetry-worker$SLAVE_NUM output: ====="
    echo $cmd_output
    echo "============================================"
  fi
done