Move to ansible for provisioning from terraform

[tayzlor]

At the moment we have a set of bash scripts (which works) but is slightly clunky / ugly.

We should be able to switch over to ansible fairly easily. This would allow us to -

• Have a playbook that is generic (with box specific stuff in it) - that could be run over any cloud
• Take advantage of ansible dynamic inventory for provisioning into cloud where we dont know the ip / details ahead of time.
• Remove some slightly messy bash code e.g. -

ssh "$node" "echo '{\"ui_dir\": \"/opt/consul-ui\", \"server\": true, \"bootstrap_expect\": ${nodes}, \"service\": {\"name\": \"consul\", \"tags\": [\"consul\", \"bootstrap\"]}}' >/etc/consul.d/bootstrap.json"

For the second one we could use potentially use this https://github.com/adammck/terraform-inventory (AWS only at the moment) which generates a dynamic ansible inventory based on a terraform state file.

[tayzlor]

fixed