62 lines
1.4 KiB
Django/Jinja
62 lines
1.4 KiB
Django/Jinja
#!/usr/bin/env bash
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# Copyright 2014, Rackspace US, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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set -e
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LOCKFILE="/var/run/neutron_ha_tool.lock"
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# Trap any errors that might happen in executing the script
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trap my_trap_handler ERR
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function my_trap_handler() {
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kill_job
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}
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function unlock() {
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rm "${LOCKFILE}"
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}
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function do_job() {
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# Do a given job
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logger "$({{ do_job }})"
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}
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function cooldown() {
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# Sleep for a given amount of time
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sleep {{ sleep_time }}
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}
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function kill_job() {
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# If the job needs killing kill the pid and unlock the file.
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PID="$(cat ${LOCKFILE})"
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unlock
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if [ -f "${LOCKFILE}" ]; then
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kill -9 "${PID}"
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fi
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}
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if [ ! -f "${LOCKFILE}" ]; then
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echo $$ | tee "${LOCKFILE}"
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do_job
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cooldown
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unlock
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else
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if [ "$(find ${LOCKFILE} -mmin +15)" ]; then
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logger "Stale pid found for ${LOCKFILE}. Killing any left over processes and unlocking"
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kill_job
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fi
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fi
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