Migrate to Pulumi from Terraform

Benefits of Pulumi

Modern Programming Languages

With Pulumi, you get all of the benefits of a modern programming language for provisioning cloud infrastructure: code completion, error checking, versioning, IDE support, and general productivity gains — without the need to manage YAML and DSL syntax.

Familiar Constructs

Real languages means you get familiar constructs like for loops, functions, and classes - cutting boilerplate and enforcing best practices. Pulumi lets you leverage existing package management tools and techniques.

Ephemeral Infrastructure

Pulumi has deep support for cloud native technologies, like Kubernetes, and supports advanced deployment scenarios that cannot be expressed with Terraform. Pulumi is a proud member of the Cloud Native Computing Foundation (CNCF).

TF Provider Integration

Pulumi is able to adapt any Terraform Provider for use with Pulumi, enabling management of any infrastructure supported by the Terraform Providers ecosystem using Pulumi programs. Find out more here.

Take advantage of real coding features with Pulumi

Pulumi provides a more expressive and efficient way to define cloud resources:

Use variable loops, not copy/paste
Use any Node libaries (or Python/Go)
On-the-fly error checking
Freeform code instead of complex interpolations

Find many other examples here.

import * as aws from "@pulumi/aws";
import { readdirSync } from "fs";
import { join as pathjoin } from "path";

const bucket = new aws.s3.Bucket("mybucket");

const folder = "./files";
let files = readdirSync(folder);
for (let file of files) {
    const object = new aws.s3.BucketObject(file, {
        bucket: bucket,
        source: new pulumi.FileAsset(pathjoin(folder, file))
    });
}

export const bucketname = bucket.id;

resource "aws_s3_bucket" "mybucket" {
    bucket_prefix = "mybucket"
}

resource "aws_s3_bucket_object" "data_txt" {
    key        = "data.txt"
    bucket     = "${aws_s3_bucket.mybucket.id}"
    source     = "./files/data.txt"
}

resource "aws_s3_bucket_object" "index_html" {
    key        = "index.html"
    bucket     = "${aws_s3_bucket.mybucket.id}"
    source     = "./files/index.html"
}

resource "aws_s3_bucket_object" "index_js" {
    key        = "index.js"
    bucket     = "${aws_s3_bucket.mybucket.id}"
    source     = "./files/index.js"
}

resource "aws_s3_bucket_object" "main.css" {
    key        = "main.css"
    bucket     = "${aws_s3_bucket.mybucket.id}"
    source     = "./files/main.css"
}

resource "aws_s3_bucket_object" "favicon.ico" {
    key        = "favicon.ico"
    bucket     = "${aws_s3_bucket.mybucket.id}"
    source     = "./files/favicon.ico"
}

Productive cloud native programming

Pulumi is designed with cloud native computing in mind - from containers to serverless, providing a productive model for quickly building and deploying apps:

Rich, built in support for event handlers
Easy-to-use in-line Lambdas for simple functions
Use JavaScript for both infrastructure and Lambda callbacks
Avoid the need for significant boiler plate code

Find many other examples here.

import * as aws from "@pulumi/aws";

// Create an S3 Bucket
const bucket = new aws.s3.Bucket("mybucket");

// Register a Lambda to handle Bucket Notification
bucket.onObjectCreated("newObj", async (ev, ctx) => {
    // Write code inline, or use a Zip
    console.log(JSON.stringify(ev));
});

// Export the bucket name for easy scripting
export const bucketName = bucket.id;

resource "aws_s3_bucket" "mybucket" {
    bucket_prefix = "mybucket"
}

data "archive_file" "lambda_zip" {
    type        = "zip"
    output_path = "lambda.zip"

    source {
    filename = "index.js"
    content = < {
    console.log(JSON.stringify(ev))
}
EOF
    }
}

data "aws_iam_policy_document" "lambda-assume-role-policy" {
    statement {
        actions = ["sts:AssumeRole"]

        principals {
            type        = "Service"
            identifiers = ["lambda.amazonaws.com"]
        }
    }
}

resource "aws_iam_role" "lambda" {
    assume_role_policy = "${data.aws_iam_policy_document.lambda-assume-role-policy.json}"
}

resource "aws_lambda_function" "my_lambda" {
    filename = "${data.archive_file.lambda_zip.output_path}"
    source_code_hash = "${data.archive_file.lambda_zip.output_base64sha256}"
    function_name = "my_lambda"
    role = "${aws_iam_role.lambda.arn}"
    handler = "index.handler"
    runtime = "nodejs8.10"
}

resource "aws_lambda_permission" "allow_bucket" {
    statement_id  = "AllowExecutionFromS3Bucket"
    action        = "lambda:InvokeFunction"
    function_name = "${aws_lambda_function.my_lambda.arn}"
    principal     = "s3.amazonaws.com"
    source_arn    = "${aws_s3_bucket.mybucket.arn}"
}

resource "aws_s3_bucket_notification" "bucket_notification" {
    bucket = "${aws_s3_bucket.mybucket.id}"

    lambda_function {
        lambda_function_arn = "${aws_lambda_function.my_lambda.arn}"
        events              = ["s3:ObjectCreated:*"]
    }
}

output "bucket_name" {
    value = "${aws_s3_bucket.mybucket.id}"
}

How Pulumi Works

1
Create

Code in modern languages
Share and reuse patterns
Use your favorite IDE and tools

2
Deploy

Preview changes
Run pulumi up to deploy
Integrate with CI/CD

3
Manage

Audit all changes
Manage complex environments
Implement policies and controls

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Get Started with Pulumi

Use Pulumi's open source SDK to create, deploy, and manage infrastructure on any cloud.

See how top engineering teams enable developers and operators to work better together with Pulumi.

Pulumi has given our team the tools and framework to achieve a unified development and DevOps model, boosting productivity and taking our business to any cloud environment that our customers need. We retired 25,000 lines of complex code that few team members understood and replaced it with 100s of lines in a familiar programming language.

Kim Hamilton

CTO, Learning Machine

The Pulumi Platform

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