The DevOps Dairies

Day #15: Python Libraries for DevOps

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Shubham gour
·

3 min read

Day #15: Python Libraries for DevOps

Photo by Fatos Bytyqi on Unsplash

In Python, dictionaries are versatile data structures, and often we need to store and exchange data in different formats such as JSON or YAML. In this blog post, we'll explore how to create a dictionary in Python, write it to a JSON file, and read a JSON file containing information about cloud services. Additionally, we'll demonstrate how to read a YAML file and convert its contents to JSON using Python.

Task #1 : Creating a Dictionary and Writing to JSON

# Import the json module
import json

# Create a dictionary with cloud service providers and their services
cloud_services = {
    "aws": "ec2",
    "azure": "VM",
    "gcp": "compute engine"
}

# Specify the file name for the JSON file
json_file_name = "cloud_services.json"

# Write the dictionary to a JSON file
with open(json_file_name, "w") as json_file:
    json.dump(cloud_services, json_file)

print(f"Dictionary written to {json_file_name}")

This code creates a dictionary cloud_services with cloud service providers and their corresponding services. The json.dump function is then used to write this dictionary to a JSON file named cloud_services.json.

Task #2 : Reading a JSON File

  1. Now, let's read the JSON file (services.json) and print the service names of every cloud service provider.
# Specify the file name for the JSON file
json_file_name = "services.json"

# Read the contents of the JSON file
with open(json_file_name, "r") as json_file:
    services_data = json.load(json_file)

# Print the service names for each cloud service provider
for provider, service in services_data.items():
    print(f"{provider} : {service}")

Assuming the JSON file (services.json) has a structure like this:

{
  "aws": "ec2",
  "azure": "VM",
  "gcp": "compute engine"
}

This code reads the JSON file and prints the service names for each cloud service provider.

Task #3 : Reading YAML and Converting to JSON

Now, let's read a YAML file (services.yaml) and convert its contents to JSON using the PyYAML library.

First, install the PyYAML library if you haven't already:

pip install pyyaml

Now, let's proceed with reading the YAML file and converting its contents to JSON.

# Import the yaml module from the PyYAML library
import yaml

# Specify the file name for the YAML file
yaml_file_name = "services.yaml"

# Read the contents of the YAML file
with open(yaml_file_name, "r") as yaml_file:
    yaml_data = yaml.safe_load(yaml_file)

# Convert YAML data to JSON
json_data = json.dumps(yaml_data, indent=2)

# Print the resulting JSON data
print("Converted YAML to JSON:")
print(json_data)

This code reads the contents of a YAML file (services.yaml) using the PyYAML library and then converts the YAML data to JSON using json.dumps. The resulting JSON data is printed to the console.

With these examples, you can work with Python dictionaries, write them to JSON files, read JSON files, and convert YAML to JSON. These skills are useful in various scenarios, especially when dealing with data interchange and configuration files.

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