Chapter 5. RHEL System Roles for SAP

RHEL System Roles for SAP is a set of roles executable by Anisble that can assist you with configuring your local or remote hosts (managed nodes) for the installation of SAP HANA.

5.1. Installing Ansible Engine

RHEL subscriptions provide support for RHEL System Roles with Ansible Engine, which is available in the Ansible Engine repository.

Note that if you already have an Ansible Tower or Ansible Engine, you can skip this step and proceed to Installing RHEL System Roles for SAP.

Prerequisites

  • root access

Procedure

  1. Enable the Ansible repository: 

    # subscription-manager repos \
--enable=ansible-2.9-for-rhel-8-$(uname -m)-rpms

  2. Install the Ansible Engine: 

    # yum install ansible

5.2. Installing RHEL System Roles for SAP

RHEL System Roles for SAP include sap-preconfigure, sap-netweaver-preconfigure, and sap-hana-preconfigure. These roles can be used to configure the local or remote managed nodes.

Prerequisites

  • root access

  • You have installed Ansible Engine or Ansible Tower

    For more information on how to Install Ansible Engine, see Installing Ansible Engine.

Procedure

  • Install RHEL System Roles for SAP: 

    # yum install rhel-system-roles-sap

5.3. Server configuration with RHEL System Roles for SAP

The RHEL System Roles for SAP provide a quick, easy, and consistent method for performing the configuration of your server according to applicable SAP notes for SAP HANA.

5.3.1. Configuring a local managed node

If the Ansible Engine is installed on same host on which you want to install SAP HANA, perform the steps outlined in this procedure to configure your local managed node.

Prerequisites

  • root access

Procedure

  1. Create a file named sap-hana.yml with the following content: 

    ---
- hosts: localhost
  vars:
    ansible_connection: local
    sap_preconfigure_fail_if_reboot_required: no
    sap_hana_preconfigure_fail_if_reboot_required: no
    sap_hana_preconfigure_update: yes
  roles:
    - role: sap-preconfigure
    - role: sap-hana-preconfigure
    Important

    The indentation and the use of spaces instead of tabs is essential for YAML files.

  2. Run the sap-hana.yml ansible playbook: 

    # ansible-playbook sap-hana.yml

    This will configure the local managed node according to the applicable SAP notes for SAP HANA.

  3. Reboot the server.

Additional resources

5.3.2. Configuring a remote managed node

If you have a separate Ansible Engine Control Node, perform the steps outlined in this procedure to automatically configure one or more managed nodes.

Prerequisites

Procedure

  1. Create or modify the file /etc/ansible/hosts with new host names to be configured: 

    host01
host02

    Replace host01 and host02 with the names of your managed nodes. Each managed node name must be on a separate line.

  2. Create a file named sap-hana.yml with the following content: 

    - hosts: all
  vars:
    sap_preconfigure_fail_if_reboot_required: no
    sap_hana_preconfigure_fail_if_reboot_required: no
    sap_hana_preconfigure_update: yes
  roles:
    - role: sap-preconfigure
    - role: sap-hana-preconfigure
    Important

    The indentation and the use of spaces instead of tabs is essential for YAML files.

  3. Run the sap-hana.yml ansible playbook: 

    # ansible-playbook -l host01,host02 sap-hana.yml

    Replace host01 and host02 with the names of your managed nodes.

    This will configure the remote host01 and host02 according to the applicable SAP notes for SAP HANA.

  4. Reboot the servers host01 and host02.

Additional resources