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drbd Cookbook

Cookbook Version CI State OpenCollective OpenCollective License

Installs and configures the Distributed Replicated Block Device (DRBD) service for mirroring block devices between a pair of hosts. Right now it simply works in pairs, multiple hosts could be supported with a few small changes.

The drbd cookbook does not partition drives. It will format partitions given a filesystem type, but it does not explicitly depend on the xfs cookbook if you want that type of filesystem, but you can put it in your run list and set the node['drbd']['fs_type'] to 'xfs' or 'ext4' or whatever.

Maintainers

This cookbook is maintained by the Sous Chefs. The Sous Chefs are a community of Chef cookbook maintainers working together to maintain important cookbooks. If you’d like to know more please visit sous-chefs.org or come chat with us on the Chef Community Slack in #sous-chefs.

Requirements

Platforms

  • Ubuntu
  • CentOS

Chef

  • Chef 12.15+

Cookbooks

  • yum-elrepo

Recipes

default

Installs drbd but does no configuration. If another version of drbd is desired, set the node['drbd']['packages'] attribute.

For example, to install drdb 8.4 on CentOS you might set node.override['drbd']['packages'] = %w(drbd84-utils kmod-drbd84).

pair

Given a filesystem and a partner host, configures block replication between the hosts. The master will claim the primary, format the filesystem and mount the partition. The slave will simply mirror without mounting. It currently takes 2 chef-client runs to ensure the pair is synced properly.

Attributes

The required attributes are

  • node['drbd']['remote_host'] - Remote host to pair with.
  • node['drbd']['remote_ip'] - Remote host to pair with.
  • node['drbd']['local_ip'] - Remote host to pair with.
  • node['drbd']['disk'] - Disk partition to mirror.
  • node['drbd']['mount'] - Mount point to mirror.
  • node['drbd']['fs_type'] - Disk format for the mirrored disk, defaults to ext3.
  • node['drbd']['master'] - Whether this node is master between the pair, defaults to false.

The optional attributes are

  • node['drbd']['packages'] - What packages are needed to install drbd, defaults to drbd_packages helper.

Roles

There are a pair of example roles drbd-pair.rb and drbd-pair-master.rb with the cookbook source.

Contributors

This project exists thanks to all the people who contribute.

Backers

Thank you to all our backers!

https://opencollective.com/sous-chefs#backers

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