BOSH Release for cron

This BOSH release is intended to allow you to add generic crontab entries to any existing BOSH deployment by colocating the cron job alongside your VMs.

Additionally, it serves as a good starting point, should you want to bosh-gen extract-job into your own BOSH release, to make it easier to tie a cronjob to your specific release.

Colocation Instructions

To colocate, ensure your job has the cron template specified:

jobs:
- name: myjob
  templates:
  - name: cron
    release: cron

For configuring cron entries, use the following properties:

properties:
  cron:
    variables: # a key-value map of any environment variables you want set in the crontab
      VAR1: val1
      VAR2: val2
    entries: # a list of key-value objects representing cron entries
    - command: echo hi!
      minute: '*'
      hour: '*'
      day: '*'
      month: '*'
      wday: '*'

When deployed, this release will generate a crontab, stick it in /etc/cron.d/cron-boshrelease-crontab, and reload the running cron process to read the new crontab.

Extraction

Feel free to use bosh-gen to extract the cron job into your BOSH release, and provide custom crontabs that you want always present. Just make sure you modify the filename being used to install the crontab, so it won't conflict if a user colocates this BOSH release on top of yours!