Python Libraries for DevOps| Day 15 of 90 Days of DevOps

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Welcome to Day 13 of #90DaysOfDevOps!

Today, let’s dive into a crucial aspect of being a DevOps Engineer — reading JSON and YAML in Python.

Reading JSON and YAML in Python

As DevOps Engineers, parsing files is a fundamental skill. Python offers powerful libraries that simplify handling various file formats like txt, json, and yaml.

Libraries for DevOps in Python

Python boasts a wealth of libraries like os, sys, json, and yaml, which prove indispensable in our day-to-day tasks.

Task 1: Create a Dictionary and Write to JSON

Let’s start by creating a Python dictionary and writing it to a JSON file. JSON provides an organized and human-readable structure for data exchange.

  import json

  # Create a Python dictionary
  data = {
      "name": "John Doe",
      "age": 30,
      "occupation": "DevOps Engineer"
  }

  # Write dictionary to JSON file
  with open("data.json", "w") as json_file:
      json.dump(data, json_file, indent=4)

Task 2: Read JSON and Extract Cloud Service Names

Now, we’ll read a JSON file, “services.json,” and extract the service names of each cloud service provider. The content of “services.json” is shown below:

  {
      "services": {
          "debug": "on",
          "aws": {
              "name": "EC2",
              "type": "pay per hour",
              "instances": 500,
              "count": 500
          },
          "azure": {
              "name": "VM",
              "type": "pay per hour",
              "instances": 500,
              "count": 500
          },
          "gcp": {
              "name": "Compute Engine",
              "type": "pay per hour",
              "instances": 500,
              "count": 500
          }
      }
  }

  # Read JSON and extract cloud service names
  with open("services.json", "r") as json_file:
      data = json.load(json_file)

  cloud_providers = data["services"].keys()
  print("Cloud Service Providers:")
  for provider in cloud_providers:
      if provider != "debug":
          print("- ", provider)

Task 3: Read YAML and Convert to JSON

YAML is another popular data serialization format. Let’s read “services.yaml” and convert its contents to JSON. The content of “services.yaml” is shown below:

  ---
  services:
      debug: 'on'
      aws:
          name: EC2
          type: pay per hour
          instances: 500
          count: 500
      azure:
          name: VM
          type: pay per hour
          instances: 500
          count: 500
      gcp:
          name: Compute Engine
          type: pay per hour
          instances: 500
          count: 500

  import yaml

  # Read YAML and convert to JSON
  with open("services.yaml", "r") as yaml_file:
      data = yaml.safe_load(yaml_file)

  with open("services_converted.json", "w") as json_file:
      json.dump(data, json_file, indent=4)

Reading JSON and YAML files in Python is a fundamental skill for DevOps Engineers. With Python’s powerful libraries, we can efficiently handle data and extract valuable information.

Make sure to practice these tasks to enhance your DevOps toolkit!

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Happy learning, and stay tuned for more exciting DevOps content!