$ curl http://localhost:8080/?value=10
10 = 10

$ curl http://localhost:8080/?value=20
10 + 20 = 30

$ curl http://localhost:8080/
10 + 20 = 30

$ curl http://localhost:8080/?command=clear
0

$ git clone https://github.com/m-takahashi-if/ansible-collection-demo.git

$ cd ansible-collection-demo
$ python3 calc-server.py

$ ansible-playbook -i hosts.yml module-example-playbook.yml

$ ansible-playbook -i hosts.yml role-example-playbook.yml