IAC Approaches

Impretive

• Step-by-step configuration
• Classic approach
• Using scripting languages
• Hard to manage

Declarative

• Desired state
• Modern Approach
• Using automation tools
• Easy to manage

IAC Methods

• Pull method: Server pulls configuration from the agent.
• Push method: Agent pushes configurations to servers.

Why Ansible:

• Agent less
• Ease of use
• Support both approaches and both methods.

Major Ansible command's

ansible

ansible-playbook

Components

• Control node: we install ansible on this node.
• Inventory: name and information about managed nodes.
• Core modules: some modules that the ansible team provides to install.
• Custom modules: some modules that some people developed and published.
• Plugins: some modules that add capabilities to the ansible and control nodes.
• Ansible vault: for storing credentials.

The connection plugin's default is ssh.