notes

Automate management of remote systems or hosts based on a desired-state model.

Composed of three main components:

1. Control node: a system in which Ansible is installed, where you run all the commands such as ansible and ansible-playbook.
2. Managed node: a remote system or host controlled by Ansible.
3. Inventory: a list of managed hosts along with their deployment descriptions.

ansible vs terraform

• ansible is a general-purpose automation tool while terraform focuses on infrastructure provisioning on the cloud.
• ansible is often better at managing configuration, opossed to terraform.

ansible galaxy

• supports management of playbooks and any configuration files necessary to run the tasks.
• by providing pre-packaged units of work, known as "roles" and "collections".
• based on roles
• ansible is smart enough to check the state of the hosts before applying changes, similar to how kubernetes applies only the necessary changes to reach a desired state.
• keep an eye on available community and builtin plugins to most common tasks, such as git, pip, apt, docker.

setup

To setup the key to authenticate to AWS resources, type the following.

make setup

The command will prompt you for a password to decrypt the key.

To run all tasks in all hosts

make execute