Installs corosync, and configures authkey-based communication with explicitly defined cluster members.

Requires encrypted data bags.

Create a 1024-bit authkey and get its base64 value so it can be placed in an encrypted data bag.

From an existing authkey, e.g.: openssl base64 < /etc/corosync/authkey | tr -d '\n'

Or generate your own: dd if=/dev/urandom bs=128 count=1 | openssl base64 | tr -d '\n'

It will be pulled from data_bag_item('keys', 'corosync')['authkey'].

Add all the members to default['corosync']['members'] array and set each node['corosync']['bindnetaddr'] to the IP to bind to.

Add all the members as nodeid => address pairs do default['corosync']['members'] hash and set node['corosync']['bindnetaddr'] and node['corosync']['nodeid'] for each node.

The tests depend on all defined nodes being up, since it checks that members have joined. To ensure nodes are converged before verify, you can do all the steps in order:

kitchen converge && kitchen verify

The usual: fork, topic branch, test, pull req.

• Joshua Yotty