public/subjects/devops/crud-master-py/audit/README.md

Functional

Before we start, let's check we have the necessary tools to perform the tests. You should make sure VirtualBox (or an equivalent software), Vagrant and Postman are installed, if not you should install them.

Documentation

Take a look at the README.md file provided by the student.

Does the file include enough context and details to understand and run the project?

VM Configuration

In the directory of the project run vagrant up and then run vagrant status.

Can you confirm that the three VMs (gateway-vm, inventory-vm and billing-vm) are up and running?

Locate the .env file in the root of the project, run cat .env:

Does the output contain all the necessary credentials for the microservices to run properly?

Is the source code free from any credential that could have been added to the .env file?

Is the student able to explain the commands included in /scripts directory and why they are used?

Inventory API Endpoints

Open Postman and make a POST request to http://[GATEWAY_IP]:[GATEWAY_PORT]/api/movies/ address with the following body as Content-Type: application/json:

{
  "title": "A new movie",
  "description": "Very short description"
}

Can you confirm the response was the success code 201?

In Postman make a GET request to http://[GATEWAY_IP]:[GATEWAY_PORT]/api/movies/ address.

Can you confirm the response was success code 200 and the body of the response is in json with the information of the last added movie?

Ask to locate the Postman configuration file in the files committed by the student and import this file in Postman.

Can you confirm the imported endpoints includes all methods supported by both APIs and that all of those methods are returning the expected response? (use the subject as a reference)

PostgreSQL database for Inventory

Run vagrant ssh inventory-vm to enter into the VM, then run sudo -i -u postgres, then psql and once in the database enter \l.

Can you confirm the movies database is listed?

Still in psql run \c movies and then TABLE movies;.

Can you confirm the entries are presents and reflect the calls you made when checking the endpoints for this API?

Billing API Endpoints

Open Postman and make a POST request to http://[GATEWAY_IP]:[GATEWAY_PORT]/api/billing/ address with the following body as Content-Type: application/json:

{
  "user_id": "20",
  "number_of_items": "99",
  "total_amount": "250"
}

Can you confirm the response was success code 200?

Run vagrant ssh billing-vm to interact with the proper VM. Run sudo pm2 stop billing_app and then sudo pm2 list.

Can you confirm the billing_app API was correctly stopped?

Open Postman and make a POST request to http://[GATEWAY_IP]:[GATEWAY_PORT]/api/billing/ address with the following body as Content-Type: application/json:

{
  "user_id": "22",
  "number_of_items": "10",
  "total_amount": "50"
}

Can you confirm the response was success code 200 even if the billing_app is not working?

PostgreSQL database for Billing

Run vagrant ssh billing-vm to enter into the VM, then run sudo -i -u postgres, then psql and once in the database enter \l.

Can you confirm the orders database is listed?

Still in psql run \c orders and then TABLE orders;.

Can you confirm the order with user_id = 20 is listed properly?

Can you confirm the order with user_id = 22 is NOT listed?

Check resilience of messaging queue

Run sudo pm2 start billing_app to start again the Billing API. At this point enter again in the database following the same instructions of the previous section.

Can you confirm the order with user_id = 22 is now listed properly?