RH445 - ch05s06

[student@workstation ~]$ git clone https://github.com/redhat-sap/RH445-download
[student@workstation ~] cd RH445-download
[student@workstation RH445-download] ./download-sap-media.sh

Follow the instructions on the screen.

As the student user on the workstation machine, use the lab command to prepare your system for this exercise.

This command ensures that the environment is configured correctly for creating your Ansible Playbooks in the following lab.

[student@workstation ~]$ lab start sap-baseconfig

In this course, you do not configure separate disks or a network in the lab environment, although it is common in a production environment.

Instructions

Change to the ansible-files directory in your home directory:
```
[student@workstation ~]$ cd ~/ansible-files
```

Create the group_vars/hanas file with the following content:

### If the hostname setup is not configured correctly
#   you need set sap_ip and sap_domain.
#   we use the full qualified domain name in the inventory
#   so we can generate thes variables
sap_hostname: "{{ inventory_hostname.split('.')[0] }}"
sap_domain: "{{ inventory_hostname.split('.')[1:]| join('.') }}"

### redhat.sap_install.sap_general_preconfigure
sap_general_preconfigure_modify_etc_hosts: true
sap_general_preconfigure_fail_if_reboot_required: false
sap_general_preconfigure_update: true

### redhat.sap_install.sap_hana_preconfigure
sap_hana_preconfigure_update: true
sap_hana_preconfigure_fail_if_reboot_required: false
sap_hana_preconfigure_reboot_ok: true

With this configuration, you achieve the following outcomes:

You update name resolution according to SAP requirements on each server.
The playbook does not stop if a reboot is required.
You update the system and reboot if required at the end of the sap_hana_preconfigure role.

Create the group_vars/s4hanas file with the following content:

### If the hostname setup is not configured correctly
#   you need set sap_ip and sap_domain.
#   we use the full qualified domain name in the inventory
#   so we can generate thes variables
sap_hostname: "{{ inventory_hostname.split('.')[0] }}"
sap_domain: "{{ inventory_hostname.split('.')[1:]| join('.') }}"

### redhat.sap_install.sap_general_preconfigure
sap_general_preconfigure_modify_etc_hosts: true
sap_general_preconfigure_update: true
sap_general_preconfigure_fail_if_reboot_required: false
sap_general_preconfigure_reboot_ok: true

### redhat.sap_install.sap_netweaver_preconfigure
sap_netweaver_preconfigure_fail_if_not_enough_swap_space_configured: false

With this configuration, you achieve the following outcomes:

You update DNS and the /etc/host file according to SAP requirements.
The playbook does not stop if a reboot is required.
You update the system and reboot if required.
Because you are installing a small lab system, you do not need to add a large swap space.

Create the prepare-for-sap.yml playbook to prepare the HANA and NetWeaver servers:

---
- name: Phase 3A - prepare for SAP HANA installation
  hosts: hanas
  become: true

  roles:
     - redhat.sap_install.sap_general_preconfigure
     - redhat.sap_install.sap_hana_preconfigure

- name: Phase 4A - prepare for SAP NetWeaver installation
  hosts: s4hanas
  become: true
  roles:
     - redhat.sap_install.sap_general_preconfigure
     - redhat.sap_install.sap_netweaver_preconfigure

Execute the prepare-for-sap.yml playbook:
```
[student@workstation ansible-files]$ ansible-playbook prepare-for-sap.yml -v -K
BECOME password: student
...output omitted...
```
A description of the parameters:
- -v: Enables debugging (more verbose output)
- -K: Prompts for the sudo password

Finish

To complete this exercise, take these steps:

Run the lab command on the workstation machine, to create the files in this exercise.
Run the ansible-playbook command to prepare the servers for SAP installation if not successful previously, and complete the exercise.

[student@workstation ansible-files]$ lab finish sap-baseconfig
[student@workstation ansible-files]$ ansible-playbook prepare-for-sap.yml -v -K
BECOME password: student

This concludes the guided exercise.

Revision: rh445-8.4-4e0c572