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- #!/bin/bash
- #
- # .---. . .
- # | | |
- # |--- .--. .-. .-. .-.| .-. .--.--. |.-. .-. .--. .-.
- # | | (.-' (.-' ( | ( )| | | | )( )| | (.-'
- # ' ' --' --' -' - -' ' ' -' -' -' ' - --'
- #
- # Freedom in the Cloud
- #
- # Watchdog functions to keep systems running even if they crash
- # systemd itself may be able to handle this to a large extent
- #
- # License
- # =======
- #
- # Copyright (C) 2014-2016 Bob Mottram <bob@robotics.uk.to>
- #
- # This program is free software: you can redistribute it and/or modify
- # it under the terms of the GNU Affero General Public License as published by
- # the Free Software Foundation, either version 3 of the License, or
- # (at your option) any later version.
- #
- # This program is distributed in the hope that it will be useful,
- # but WITHOUT ANY WARRANTY; without even the implied warranty of
- # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- # GNU Affero General Public License for more details.
- #
- # You should have received a copy of the GNU Affero General Public License
- # along with this program. If not, see <http://www.gnu.org/licenses/>.
-
- # name of a script which keeps running processes going even if they crash
- WATCHDOG_SCRIPT_NAME="keepon"
-
- function install_watchdog_script {
- if grep -Fxq "install_watchdog_script" $COMPLETION_FILE; then
- return
- fi
- echo '#!/bin/bash' > /usr/bin/$WATCHDOG_SCRIPT_NAME
- echo 'LOGFILE=/var/log/keepon.log' >> /usr/bin/$WATCHDOG_SCRIPT_NAME
- echo 'CURRENT_DATE=$(date)' >> /usr/bin/$WATCHDOG_SCRIPT_NAME
- # application specific stuff is added later
- chmod +x /usr/bin/$WATCHDOG_SCRIPT_NAME
-
- function_check cron_add_mins
- cron_add_mins 1 '/usr/bin/$WATCHDOG_SCRIPT_NAME'
-
- echo 'install_watchdog_script' >> $COMPLETION_FILE
- }
-
- # NOTE: deliberately no exit 0
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