Gain insights into Ansible's core features like inventory, playbooks, and roles. Delve into writing playbooks, using Jinja2, and organize tasks for efficient, stable IT infrastructure management.

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Configuration management plays a pivotal role in maintaining a stable and organized IT infrastructure by enabling the systematic gathering of information from remote hosts, facilitating server provisioning, and streamlining application upgrades or deployments.

You will learn the core features of Ansible, such as inventory, variables, playbooks, roles, and handlers, which serve as the building blocks for configuration management. You will learn how to write playbooks that define and execute complex orchestration tasks with ease. Next, you’ll learn how to use roles to maintain consistency across configuration management projects and how to harness the power of Jinja2 to apply logic and control structures and generate configuration files dynamically.

After completing this course, you will be equipped with the necessary skills for customizing configurations, organizing automation tasks efficiently, and maintaining a desired state for your infrastructure.

Configuration Management Using Ansible

```YAML
- name: Install Postgres11
  apt:
    name: postgresql-11
    state: present
```

```YAML
- name: Install Postgres11
  apt:
    name: postgresql-11
    state: latest
```

```YAML
- name: Install Postgres11
  apt:
    name: postgresql-11
    state: installed
```

```YAML
- name: Install Postgres11
  apt-install:
    name: postgresql-11
    state: present
```

Which code block defines an Ansible task that uses the `apt` module to install the  `postgresql-11` package on a managed node?

Which code block defines an Ansible task that uses the <code>apt</code> module to install the <code>postgresql-11</code> package on a managed node?

```YAML
---
- name: Database Deployment
  roles:
    - database
  hosts: webservers
```

```YAML
---
- name: Database Deployment
  hosts: db_servers
  role:
    - database
```

```YAML
---
- name: Database Deployment
  hosts: dbservers
  roles:
    - database
```

```YAML
---
- name: Database Deployment
  role:
    - database
  host: dbserver
```

Assume you've created a role named `database` and you want to reference it within a playbook and specify the `dbservers` as the target nodes. Which code block will help you achieve this?

Assume you’ve created a role named <code>database</code> and you want to reference it within a playbook and specify the <code>dbservers</code> as the target nodes. Which code block will help you achieve this?

```YAML
- name: Ensure /etc/nginx/ssl directory is created
  file:
    path: /etc/nginx/ssl
    state: present
```

```YAML
- name: Ensure /etc/nginx/ssl directory is created
  file:
    path: /etc/nginx/ssl
    state: directory
```

```YAML
- name: Ensure /etc/nginx/ssl directory is created
  file:
    directory: /etc/nginx/ssl
    state: present
```

```YAML
- name: Ensure /etc/nginx/ssl directory is created
  file:
    directory: /etc/nginx/ssl
    state: available
```

Which code block uses the `file` module to ensure that the `/etc/nginx/ssl` directory is created?

Which code block uses the <code>file</code> module to ensure that the <code>/etc/nginx/ssl</code> directory is created?

```YAML
# initial task configuration
  handlers:
    - reload postgresql
    - restart postgresql
```

```YAML
# initial task configuration
  notify:
    - reload postgresql
    - restart postgresql
```

```YAML
# initial task configuration
  flush_handlers:
    - reload postgresql
    - restart postgresql
```

```YAML
  name: 
  meta: flush_handlers
```

Which option calls two handlers named `reload postgresql` and `restart postgresql` at the end of a playbook execution?

Which option calls two handlers named <code>reload postgresql</code> and <code>restart postgresql</code> at the end of a playbook execution?

```YAML
- name: Install Python 3
  apt:
    name: python3
    state: present
  when: python_installed == true
```

```YAML
- name: Install Python 3
  apt:
    name: python3
    state: present
  when: python_installed == false
```

```YAML
- name: Install Python 3
  apt:
    name: python3
    state: present
  when: python_installation != false
```

```YAML
- name: Install Python 3
  apt:
    name: python3
    state: present
  when: python_installation != true
```

Which code block defines a conditional task that installs the `python3.10` package only if the `python_installed` variable is set to `false`?

Which code block defines a conditional task that installs the <code>python3.10</code> package only if the <code>python_installed</code> variable is set to <code>false</code>?

```YAML
- name: Ensure Apache service is restarted
  meta: flush_handlers
```

```YAML
- name: Ensure Apache service is restarted
  notify: restart_apache
  async: 0
```

```YAML
- name: Ensure Apache service is restarted
  flush_handlers: yes
```

```YAML
- name: Ensure Apache service is restarted
  handlers: restart_apache
```

Assume you've registered a handler named `restart_apache` to restart the Apache service and want to ensure that this handler is executed immediately. Which option correctly flushes the `restart_apache` handler?

Assume you’ve registered a handler named <code>restart_apache</code> to restart the Apache service and want to ensure that this handler is executed immediately. Which option correctly flushes the <code>restart_apache</code> handler?

Test your knowledge of some major concepts of Ansible like modules, tasks, playbooks, roles, and handlers.

Getting Started

What Is Configuration Management?

Basics of Ansible

Major Concepts in Ansible

Ansible Variables and Other Elements

Manage Configuration with Ansible

Wrap Up

Quiz: Major Concepts in Ansible