isabella232 / ewn

Whis is wrapper script, what can notify you when your tasks failed.

Execute With Notify

This is wrapper script, what can notify you when your tasks failed.

Features

1. Notify with email
2. Publish logs to Graylog/Logstash
3. Notify with zabbix
4. Run commands in background (key --daemon)
5. Prevent duplicate processes
6. Retry failed commands

Install

pip install ewn

Configure

You must modify file /etc/ewn.conf

usage

• Exec command with notify for default recipients ('[email protected]' and '[email protected]'):
  ewn -c 'echo "This is test command" && /bin/false'
• Exec command with notify for custom recipients ('[email protected]' and '[email protected]'):
  ewn -c 'echo "This is test command" && /bin/false' -r "[email protected]" "[email protected]"
• Exec command with comment message. It will be attached to email and Graylog message:
  ewn -c 'echo "This is test command" && /bin/false' --comment "This command will always fail"
• Exec command in background (daemon) mode. It will ignore SIGHUP signal.
  ewn -c 'echo "This is test command" && /bin/false' -d
• Exec command that prevent duplicate processes:
  ewn -c 'echo "This is test command" && /bin/sleep 3600' --dont-duplicate
• Exec command with 3 retry on failure and 30 sec interval between retries:
  ewn -c 'echo "This is test command" && /bin/false' --retry 3 --retry-sleep 30
• Exec command with custom valid exitcodes (default is 0). If command exit with exit code 1, 3 or 255 email will not sent.
  ewn -c 'echo "This is test command" && /bin/false' --valid-exitcodes 1 3 255

You can combine any keys like:
ewn -c 'echo "This is test command" && /bin/false' -d --dont-duplicate -r "[email protected]" "[email protected]" --retry 3 --retry-sleep 30 --valid-exitcodes 1 --comment "This command will never fail because 1 on valid exitcodes"

License

GPL v3