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datadisk Cookbook

This cookbook formats and mounts a second disk (datadisk) on the specified mountpoint. If you like living dangerously, you can try this with an existing dir by using ::existing_datadir, but that code is less polished (this is done in single user mode using rsync, which is somewhat finicky).

Requirements

• a second disk following the format of /dev/[sx]v?d[a-z], e.g. /dev/sdb or /dev/xvde, containing a partition without filesystem

for the ::existing_datadir recipe:

• an OS using upstart
• recent, working (believe is what you do in church!) backups (though tested and with several failsafes in place, this cookbook still does pretty scary stuff.)

Attributes

datadisk::default

Key	Type	Description	Default
['datadisk']['datapart']	string	the target mountpoint e.g. /data or /opt	/data
['datadisk']['doitlive']	Boolean	Only for ::existing_datadir: whether to reboot immediately after the chef run	false

Usage

datadisk::default

Just include datadisk in your node's run_list:

{
  "name":"my_node",
  "run_list": [
    "recipe[datadisk]"
  ]
}

datadisk::existing_datadir

Just include datadisk::existing_datadir in your node's run_list:

{
  "name":"my_node",
  "run_list": [
    "recipe[datadisk::existing_datadir]"
  ]
}

After the chef run, schedule a reboot on your desired point in time. Since the entire contents of 'datapart' needs to be rsync'd, downtime can be considerable.

Contributing

e.g.

1. Fork the repository on Github
2. Create a named feature branch (like add_component_x)
3. Write your change
4. Write tests for your change (if applicable)
5. Run the tests, ensuring they all pass
6. Submit a Pull Request using Github

License and Authors

Authors: Milo de Vries