Guided Exercise: Verifying Ansible Configuration on the Control Node

In this exercise, you access and use the lab environment and browse the available resources.

Outcomes

You verify the Ansible installation on the control node, and verify SSH access to the managed nodes.

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 future.

[student@workstation ~]$ lab start ansible-prereq

To update the lab environment to the latest working release, please do the following:

As the student user on the workstation machine, execute the following commands to download the SAP software to the training environment:

[student@workstation ~]$ git clone https://github.com/redhat-sap/RH445-download
[student@workstation ~] cd RH445-download/tools
[student@workstation tools] ./update-lab.sh
===============
Warning: [...]
===============
Press Ctrl-C ...
BECOME password: student
Activation Key: ask-your-trainer
Enter a Nickname: anything here

1. Verify that Ansible 2.14 or later is installed and usable:

    [student@workstation ~]$ ansible --version
    ansible [core 2.15.3]
      config file = /home/student/.ansible.cfg
      configured module search path = ['/home/student/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
      ansible python module location = /usr/lib/python3.11/site-packages/ansible
      ansible collection location = /home/student/.ansible/collections:/usr/share/ansible/collections
      executable location = /usr/bin/ansible
      python version = 3.11.5 (main, Sep 22 2023, 15:34:29) [GCC 8.5.0 20210514 (Red Hat 8.5.0-20)] (/usr/bin/python3.11)
      jinja version = 3.1.2
      libyaml = True
   

2. Verify that Ansible inventory setup for this environment is correct.

   1. Verify that you can see all hosts:

       [student@workstation ~]$ ansible all --list-hosts
         hosts (6):
           hana1.lab.example.com
           hana2.lab.example.com
           nodea.lab.example.com
           nodeb.lab.example.com
           nodec.lab.example.com
           noded.lab.example.com
      

   2. Use ansible ping to test the connections from your management hosts to your managed nodes:

      [student@workstation ~]$ ansible -m ping all
      nodec.lab.example.com | SUCCESS => {
          "ansible_facts": {
              "discovered_interpreter_python": "/usr/libexec/platform-python"
          },
          "changed": false,
          "ping": "pong"
      }
      hana1.lab.example.com | SUCCESS => {
          "ansible_facts": {
              "discovered_interpreter_python": "/usr/libexec/platform-python"
          },
          "changed": false,
          "ping": "pong"
      }
      nodeb.lab.example.com | SUCCESS => {
          "ansible_facts": {
              "discovered_interpreter_python": "/usr/libexec/platform-python"
          },
          "changed": false,
          "ping": "pong"
      }
      nodea.lab.example.com | SUCCESS => {
          "ansible_facts": {
              "discovered_interpreter_python": "/usr/libexec/platform-python"
          },
          "changed": false,
          "ping": "pong"
      }
      hana2.lab.example.com | SUCCESS => {
          "ansible_facts": {
              "discovered_interpreter_python": "/usr/libexec/platform-python"
          },
          "changed": false,
          "ping": "pong"
      }
      noded.lab.example.com | SUCCESS => {
          "ansible_facts": {
              "discovered_interpreter_python": "/usr/libexec/platform-python"
          },
          "changed": false,
          "ping": "pong"
      }
      

Dowload the SAP Software into your environment

We must not provide the SAP software installer bundles. Hence you need an SAP S-User with download permission to download the SAP software to the training enviroment. The download is automated for you.

As the student user on the workstation machine, execute the following commands to download the SAP software to the training environment:

[student@workstation ~] cd ~/RH445-download
[student@workstation RH445-download] ./download-sap-media.sh

Follow the instructions on the screen and enter your S-User and password.

If you do not have an S-User/password to download the installer software. The above script lists the files you need to provide to the course environment. These files have to be provided on a server which can be reached from inside the course environment.

Finish

On the workstation machine, use the lab command to complete this exercise. This step is important to ensure that resources from previous exercises do not impact upcoming exercises.

[student@workstation ~]$ lab finish ansible-prereq