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 ('user1@example.com' and 'user2@example.com'):
  ewn -c 'echo "This is test command" && /bin/false'
• Exec command with notify for custom recipients ('user3@example.com' and 'user4@example.com'):
  ewn -c 'echo "This is test command" && /bin/false' -r "user3@example.com" "user4@example.com"
• 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 "user3@example.com" "user4@example.com" --retry 3 --retry-sleep 30 --valid-exitcodes 1 --comment "This command will never fail because 1 on valid exitcodes"

License

GPL v3