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. Prevent duplicate processes
4. Retry failed commands

Install

1. Download binary from Release page or build it with go build main.go
2. Run ewn --initconfig. This command create default config file (default config path: /etc/ewn.conf)
3. Update config file with your parameters

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 that prevent duplicate processes:
  ewn -c 'echo "This is test command" && /bin/sleep 3600' --dont-duplicate
• Exec command that prevent duplicate processes with custom key (by default it is --command). It useful when you have different commands:
  ewn -c 'echo "This is first command" | tee /tmp/file && /bin/sleep 3600' --dont-duplicate --dont-duplicate-key "conflicting commands" ewn -c 'echo "This is second command" | tee /tmp/file && /bin/sleep 3600' --dont-duplicate --dont-duplicate-key "conflicting command"
• 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 exit codes (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 in valid exitcodes"

License

GPL v3