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46 lines
1.3 KiB
Markdown
46 lines
1.3 KiB
Markdown
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# Luzifer / rsyslog\_cron
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This project is a quick and dirty replacement for running a cron daemon inside docker containers.
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## Advantages
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- It logs the output of the jobs into a remote syslog target (like Papertrail) using TCP syslog
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- Crons can be started on seconds, not only on minutes like a conventional cron
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- Due to the logs cron jobs can get debugged
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## Usage
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1. Put the [binary](https://gobuilder.me/get/github.com/Luzifer/rsyslog_cron/rsyslog_cron_master_linux-amd64) into your container
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2. Generate a YAML file containing the cron definition
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3. Watch your crons get executed in your log stream
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## Config format
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```yaml
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---
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rsyslog_target: logs.myserver.com:12345
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jobs:
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- name: date
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schedule: "0 * * * * *"
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cmd: "/bin/date"
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args:
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- "+%+"
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```
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The `rsyslog_target` parameter needs to be a rsyslog endpoint supporting TCP plain connections like Loggly or Papertrail does.
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The `schedule` parameter consists of 6 instead of the normal 5 fields:
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```
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field allowed values
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----- --------------
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second 0-59
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minute 0-59
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hour 0-23
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day of month 1-31
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month 1-12 (or names, see below)
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day of week 0-7 (0 or 7 is Sun, or use names)
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```
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Standard format for crontab entries is supported. (See `man 5 crontab`)
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