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#!/bin/bash |
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# |
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# Copyright (C) 2011 Google Inc. |
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# |
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# This program is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# This program is distributed in the hope that it will be useful, but |
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# WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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# General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with this program; if not, write to the Free Software |
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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# 02110-1301, USA. |
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SSH_USER='root' |
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SSH_FLAGS='-q -oStrictHostKeyChecking=no' |
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EXIT_SUCCESS=0 |
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EXIT_FAILURE=1 |
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EXIT_UNKNOWN=2 |
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_run_ssh() { |
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local host="$1" |
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local command="$2" |
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ssh $SSH_FLAGS "$SSH_USER@$host" "$command" 1>&2 |
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return $? |
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} |
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_power_on() { |
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echo 'power-on not supported in this script' >&2 |
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exit $EXIT_FAILURE |
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} |
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_power_off() { |
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local host="$1" |
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if ! _run_ssh "$host" 'shutdown -h now'; then |
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echo "Failure during ssh to $host" >&2 |
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exit $EXIT_FAILURE |
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fi |
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} |
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_power_cycle() { |
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local host="$1" |
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if ! _run_ssh "$host" 'shutdown -r now'; then |
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echo "Failure during ssh to $host" >&2 |
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exit $EXIT_FAILURE |
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fi |
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} |
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_power_status() { |
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local host="$1" |
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if fping -q "$host" > /dev/null 2>&1; then |
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echo '{ "powered": true }' |
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else |
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echo '{ "powered": false }' |
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fi |
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} |
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_health() { |
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echo 'health not supported in this script' >&2 |
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exit $EXIT_FAILURE |
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} |
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_action() { |
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local command="$1" |
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local host="$2" |
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case "$command" in |
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power-on) |
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_power_on "$host" |
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;; |
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power-off) |
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_power_off "$host" |
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;; |
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power-cycle) |
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_power_cycle "$host" |
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;; |
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power-status) |
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_power_status "$host" |
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;; |
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health) |
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_health "$host" |
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;; |
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*) |
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echo "Unsupported command '$command'" >&2 |
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exit $EXIT_FAILURE |
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;; |
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esac |
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} |
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main() { |
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if [[ $# != 2 ]]; then |
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echo "Wrong argument count, got $#, expected 2" >&2 |
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exit $EXIT_FAILURE |
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fi |
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_action "$@" |
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exit $EXIT_SUCCESS |
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} |
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main "$@" |
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