Cron-Sentry: error reporting to Sentry of commands run via cron

Cron-Sentry is a python command-line wrapper that reports errors to Sentry (using raven) if the called script exits with a status other than zero.

Install

pip install cron-sentry

Usage

$ cron-sentry --help
usage: cron-sentry [-h] [--dsn SENTRY_DSN] [-M STRING_MAX_LENGTH] [--quiet] [--report-all] [--version] cmd [arg ...]

Wraps commands and reports those that fail to Sentry.

positional arguments:
  cmd                   The command to run

optional arguments:
  -h, --help            show this help message and exit
  --dsn SENTRY_DSN      Sentry server address
  -M STRING_MAX_LENGTH, --string-max-length STRING_MAX_LENGTH, --max-message-length STRING_MAX_LENGTH
                        The maximum characters of a string that should be sent
                        to Sentry (defaults to 4096)
  -q, --quiet           Suppress all command output
  --version             show program's version number and exit
  --report-all          Report to Sentry even if the task has succeeded

The Sentry server address can also be specified through the SENTRY_DSN
environment variable (and the --dsn option can be omitted).

It's possible to send extra information to Sentry via environment variables (prefix them with CRON_SENTRY_EXTRA_), such as:

$ export CRON_SENTRY_EXTRA_env=production
$ cron-sentry my-program

Example

$ crontab -e

SENTRY_DSN=https://<your_key>:<your_secret>@app.getsentry.com/<your_project_id>
0 4 * * * cron-sentry my-process --arg arg2

Notes

If your command outputs Unicode, you may need to signal to python that stdin/stdout/stderr are UTF-8 encoded:

PYTHONIOENCODING=utf-8
SENTRY_DSN=https://<your_key>:<your_secret>@app.getsentry.com/<your_project_id>
0 4 * * * cron-sentry my-process --arg arg2

License