Absent information about order of deploying nodes by role in documentation

[Mikhail Samoylov]

We have a deployment scenario, when we deploy a node on the role of one after the other, rather than all together.
In this scenario if we have wrong order of roles, for example controller node deployed before ceph node, deployment will finish with error.
We need to add information to our documentation about rigth deployment order for some default examples.

Default scenario for example:
Scenario:
1. Create a cluster with 4 nodes
2. Set ceph usage for images, cinder for volumes
4. Provision a controller node using Fuel CLI
5. Provision one compute node using Fuel CLI
6. Provision one cinder node using Fuel CLI
7. Provision one mongo node using Fuel CLI
8. Provision two ceph-osd nodes using Fuel CLI
9. Deploy the controller node using Fuel CLI
10. Deploy the compute node using Fuel CLI
11. Deploy the cinder node using Fuel CLI
12. Deploy the ceph-osd nodes using Fuel CLI
13. Deploy the mongo node using Fuel CLI
14. Run OSTF

Actual result:
Failed result on step 9 because we cannot deploy controller node before ceph node in this configuration
Expected result:
Deployment passed and we have information in docs about wrong order of deploying nodes.

[Mikhail Samoylov (msamoylov)]

We need more scenarios from fuel-library team for documentation.