Chapter 1. Ansible based deployment workflow

You can use Ansible to deploy Red Hat Hyperconverged Infrastructure for Virtualization on a single node or on 3 to 12 nodes.

The preparation of the inventory file based on the user requirements is a one time process and is created with the help of the example inventory files available.

The workflow for deploying RHHI for Virtualization using Ansible is as follows:

  1. Check requirements.

    Verify that your planned deployment meets support requirements: Requirements, and fill in the installation checklist so that you can refer to it during the deployment process.

  2. Install operating systems.

    1. Install an operating system on each physical machine that will act as a hyperconverged host: Installing hyperconverged hosts.
    2. (Optional) Install an operating system on each physical or virtual machine that will act as an Network-Bound Disk Encryption (NBDE) key server: Installing NBDE key servers.
  3. Modify firewall rules for additional software.

    1. (Optional) Modify firewall rules for disk encryption: Section 5.1, “Modifying firewall rules for disk encryption”.
  4. Configure authentication between hyperconverged hosts.

    Configure key-based SSH authentication without a password to enable automated configuration of the hosts: Configure key-based SSH authentication.

  5. (Optional) Configure disk encryption.

  6. Define the details of your environment in inventory and playbook files: Defining deployment details
  7. Execute the Ansible playbook to deploy RHHI for Virtualization: Executing the deployment playbook
  8. Verify your deployment.