Ansible-Demo

This repository contains a simple testing environment for automation using ansible playbooks.

Docker setup

In order to build the testing node, which represents a ubuntu 22.04 distribution, run the following:

cd example-nodes/node-docker
./build-docker.sh

Then replace the ip in the inventory file with that from the output of:

docker inspect ansible_test-server

The root and user password can be found in the Dockerfile.

Basic commands

View inventory:

ansible-inventory -i inventory --list

Test the network connection of the machines:

ansible all -i inventory -m ping
ansible webservers -i inventory -m ping

Run command:

ansible all -i inventory -a 'whoami'

Roles

add-user-and-ssh

This role adds the user with the specified name and password and set up ssh passwordless authentication.

ansible-playbook -i ./inventory ./add-user-and-ssh.yml

If you want to add another user, modify the add-user-and-ssh.yml playbook. Alternatively, override the variables using -e:

ansible-playbook -i ./inventory ./add-user-and-ssh.yml -e user_name=root -e new_password=securepwd

deploy-apache-webserver

This role installs apache2 and configures the server to listen to a specific port. Virtual hosting can be added optionally. The webserver delivers the index.php file as a sample.

ansible-playbook -i ./inventory ./deploy-apache-webserver.yml

To override the port number:

ansible-playbook -i ./inventory ./deploy-apache-webserver.yml -e webserver_port=8080

Note that restarting the apache service does not work with the example docker container. Reloading must be done manually.

TODO

• Add vagrant node and manage it with ansible
• Make docker accept service management