Red Hat High Availability Clustering for SAP Solutions

Bookmark this page
P123456
PreviousNext

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

Instructions

  1. Verify that Ansible 2.11 or later is installed and usable:

    [student@workstation ~]$ ansible --version
ansible [core 2.12.2]
  config file = /etc/ansible/ansible.cfg
  configured module search path = ['/home/student/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/lib/python3.8/site-packages/ansible
  ansible collection location = /home/student/.ansible/collections:/usr/share/ansible/collections
  executable location = /usr/bin/ansible
  python version = 3.8.12 (default, Sep 16 2021, 10:46:05) [GCC 8.5.0 20210514 (Red Hat 8.5.0-3)]
  jinja version = 2.10.3
  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"
}

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

This concludes the guided exercise.

PreviousNext
Revision: rh445-8.4-4e0c572