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Infrastructure as Code with Pulumi

Pulumi is a modern infrastructure as code (IaC) platform that allows you to define, deploy, and manage cloud resources using general-purpose programming languages such as Python, JavaScript, TypeScript, Go, .NET, and Java. It combines the power of imperative programming with the benefits of declarative infrastructure definitions. (pulumi.com, pulumi.com)

How Pulumi Is Used

  1. Install the Pulumi CLI:

    curl -fsSL https://get.pulumi.com | sh

  2. Initialize a New Project:

    pulumi new aws-python  # Choose your language and cloud

  3. Write Code: Use your language of choice to import Pulumi libraries and define resources.

  4. Configure: pulumi config set aws:region us-west-2

  5. Preview Changes:

    pulumi preview

  6. Deploy:

    pulumi up

  7. Manage State: Pulumi stores state in the Pulumi Service by default or in your preferred backend (S3, Azure Blob, etc.).

Example: Provision an AWS EC2 Instance (Python)

"""A Python Pulumi program"""

import pulumi
from pulumi_aws import ec2

# Define a Security Group
security_group = ec2.SecurityGroup(
    'web-sg',
    description='Enable SSH and HTTP access',
    ingress=[
        ec2.SecurityGroupIngressArgs(
            protocol="tcp",
            from_port=22,
            to_port=22,
            cidr_blocks=["0.0.0.0/0"],  # Allow SSH access
        ),
        ec2.SecurityGroupIngressArgs(
            protocol="tcp",
            from_port=80,
            to_port=80,
            cidr_blocks=["0.0.0.0/0"],  # Allow HTTP access
        ),
    ]
)

# Create an EC2 instance
ami_id = "ami-005fc0f236362e99f"  # Update with a valid Ubuntu AMI for your region
instance = ec2.Instance(
    'ubuntu-instance',
    instance_type="t2.micro",
    ami=ami_id,
    vpc_security_group_ids=[security_group.id],
    key_name="",  # Replace with your AWS key pair
    tags={
        "Name": "PulumiInstance"
    }
)

# Export the public IP of the instance
pulumi.export("public_ip", instance.public_ip)

The output is something like this:

Pulumi deployment for EC

Challenge

  1. Use Pulumi to deploy other AWS/GCP service

References