Day 15 Task: Python Libraries for DevOps

Reading JSON and YAML in Python

• As a DevOps Engineer you should be able to parse files, be it txt, json, yaml, etc.

• You should know what all libraries one should use in Python for DevOps.

• Python has numerous libraries like os, sys, json, yaml etc that a DevOps Engineer uses in day to day tasks.

Tasks

1. Create a Dictionary in Python and write it to a json File.

   here's an example of creating a dictionary in Python and writing it to a JSON file:

     import json
   
     # Sample dictionary
     data = {
         "name": "John Doe",
         "age": 30,
         "city": "New York"
     }
   
     # Writing the dictionary to a JSON file
     with open('data.json', 'w') as json_file:
         json.dump(data, json_file)
   

   This code snippet creates a dictionary called data, containing information about a person. The json.dump() function is then used to write this dictionary to a file named data.json in the current directory.

2. Read a json file services.json kept in this folder and print the service names of every cloud service provider.

output-

aws : ec2

azure : VM

gcp : compute engine

you'll first need to read the contents of the JSON file and then extract the service names for each cloud service provider. Here's an example:

Suppose your services.json file looks like this:

{
    "aws": {
        "compute": "ec2",
        "storage": "S3",
        "database": "RDS"
    },
    "azure": {
        "compute": "VM",
        "storage": "Blob Storage",
        "database": "SQL Database"
    },
    "gcp": {
        "compute": "compute engine",
        "storage": "Cloud Storage",
        "database": "Cloud SQL"
    }
}

And here's the Python code to read this file and extract the service names for each cloud provider:

import json

# Read the JSON file
with open('services.json', 'r') as file:
    data = json.load(file)

# Extract service names for each provider
for provider, services in data.items():
    service_name = services['compute']
    print(f"{provider} : {service_name}")

This code reads the services.json file, extracts the service names under the 'compute' key for each provider, and prints the output in the format you specified. Adjust the file name or path as needed to match the location of your services.json file.

1. Read YAML file using python, file services.yaml and read the contents to convert yaml to json.

   To read a YAML file and convert its contents to JSON using Python, you can use the PyYAML library to handle YAML files and the json library to handle JSON data. First, make sure you have the PyYAML library installed (pip install pyyaml). Then, you can use the following code:

   Suppose your services.yaml file looks like this:

     aws:
       compute: ec2
       storage: S3
       database: RDS
   
     azure:
       compute: VM
       storage: Blob Storage
       database: SQL Database
   
     gcp:
       compute: compute engine
       storage: Cloud Storage
       database: Cloud SQL
   

   Here's the Python code to read this YAML file and convert its contents to JSON:

     import yaml
     import json
   
     # Read the YAML file
     with open('services.yaml', 'r') as yaml_file:
         yaml_content = yaml.safe_load(yaml_file)
   
     # Convert YAML to JSON
     json_content = json.dumps(yaml_content, indent=2)
   
     # Print the JSON content
     print(json_content)
   

   This code reads the services.yaml file, loads its content as YAML, and then converts it to JSON using json.dumps(). Adjust the file name or path as needed to match the location of your services.yaml file. The indent=2 argument is optional and provides a more readable JSON output with indentation.