GCP - Test Python API's

Overview:

The given python script does below tasks:

1. Create a Instance
2. Delete a Instance
3. Get Healtcheck of created instance
4. Get available Methods

User can update the python file to get more flexibility with instance creation.

Prerequisites:

1. You should have python version 3 installed.
2. Python modules are "google-api-python-client" And "flask" Use: pip3 install

   In Amazon Linux below commands can be used:
   pip3 install --upgrade google-api-python-client
   pip3 install flask

3. Create a Project in Google Cloud

4. Get API keys from google cloud dashboard: APIs & Services > Credentials > Create Credentials > Service Account Keys > Save the json file

5. Export the downloaded json key file: export GOOGLE_APPLICATION_CREDENTIALS=/path_to_keys/key.json

6. Clone/download this project and update the input.txt file:

   project=your_project_id
   zone=zone_for_gce
   instance_name=instance_name_of_your_choice

   Example:
   project=analog-bay-13434324
   zone=us-east1-c
   instance_name=Test-instance

Running the code:

1. Run the application file: python3 simple_python_app.py
2. To get the available methods: http://localhost:5000/
3. To create the instance: curl -H "Content-Type: application/json" -X POST -d '{"username":"Your_User", "password": "Your_passowrd"}' http://localhost:5000/v1/instances/create
4. To get healthcheck: curl http://localhost:5000/healthcheck
5. To delete the instance: curl -X DELETE http://localhost:5000/v1/delete_instance

User can also use postman instead of curl commands.

###Additional info:

1. The python application runs on localhost at port 5000. User can also use IP of localhost.
2. /healthcheck gives a 200 OK response and no other output.
3. If Instance is down /healthcheck will give you error 404
4. To login to the instance use the username and password provided during the create instance call.