Cloud Infrastructure Automation for AWS with Pulumi

^Serverless

Creating a Serverless REST API

With Pulumi, you can combine infrastructure definitions and application code in one program. The @pulumi/cloud-aws library is a set of Pulumi components that provide a higher-level abstraction over AWS. So, instead of provisioning an API Gateway instance, Lambda functions, and setting up IAM roles, you can use this library and define application code at the same time as the infrastructure it depends on.

This example shows how to create a simple REST API that counts the number of times a route has been hit. To implement this API, we need a DynamoDB table, an API endpoint, and a Lambda function.

Find many other examples here.

Pulumi can be used on any resource covering serverless, containers, and infrastructure using JavaScript, TypeScript, Python, and Go.

const cloud = require("@pulumi/cloud-aws");

// Create a mapping from 'route' to a count
let counterTable = new cloud.Table("counterTable", "route");
        
// Create an API endpoint
let endpoint = new cloud.API("hello-world");
        
endpoint.get("/{route+}", (req, res) => {
    let route = req.params["route"];
    console.log(`Getting count for '${route}'`);
        
    // get previous value and increment
    // reference outer `counterTable` object
    counterTable.get({ route }).then(value => {
        let count = (value && value.count) || 0;
        counterTable.insert({ route, count: ++count }).then(() 
        => {
            res.status(200).json({ route, count });
            console.log(`Got count ${count} for '${route}'`);
        });
    });
});
        
exports.endpoint = endpoint.publish().url;

^Containers

Build and deploy containers to AWS

Pulumi supports programming against container orchestrators – Amazon’s ECS, EKS, and AWS Fargate. Pulumi is entirely unopinionated about how containers are built, published, and deployed to your orchestrator.

This code runs Nginx with 2 load balanced replicas listening on port 80. By default, this will run in Fargate when targeting AWS, which means you can skip the complications of configuring an orchestrator. After running pulumi up, the auto-assigned URL will be printed.

Find many other examples here.

Pulumi can be used on any resource covering serverless, containers, and infrastructure using JavaScript, TypeScript, Python, and Go.

// Deploy a pre-built container image
// to AWS Fargate

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

let nginx = new cloud.Service("nginx", {
    image: "nginx",
    ports: [{ port: 80 }],
    replicas: 2,
});

export let url = nginx.defaultEndpoint;

// Deploy a custom container image based on nginx
// to AWS Fargate

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

let nginx = new cloud.Service("nginx", {
    build: ".",
    ports: [{ port: 80 }],
    replicas: 2,
});
            
export let url = nginx.defaultEndpoint;
    

^{Infrastructure}

Creating a Simple Web Server

Pulumi gives you a way to express infrastructure configuration using your favorite programming language.

This code uses TypeScript on Node.js to define the necessary security group, and defines a very simple web server, and then creates the instance, before exporting the IP and Hostname.

Find many other examples here.

Pulumi can be used on any resource covering serverless, containers, and infrastructure using JavaScript, TypeScript, Python, and Go.

const aws = require("@pulumi/aws");
        
let size = "t2.micro";
let ami  = "ami-7172b611"
    
    // create a new security group for port 80
let group = new aws.ec2.SecurityGroup("web-secgrp", { 
    ingress: [
        { protocol: "tcp", fromPort: 22, 
            toPort: 22, cidrBlocks: ["0.0.0.0/0"] },
        { protocol: "tcp", fromPort: 80, 
            toPort: 80, cidrBlocks: ["0.0.0.0/0"] },
    ],
});
    
// create a simple web server
let userData = 
    `#!/bin/bash
    echo "Hello, World!" > index.html
    nohup python -m SimpleHTTPServer 80 &`;
    
let server = new aws.ec2.Instance("web-server-www", {
    tags: { "Name": "web-server-www" },
    instanceType: size,
    securityGroups: [ group.name ], 
    ami: ami,
    userData: userData              
});
    
exports.publicIp = server.publicIp;
exports.publicHostName = server.publicDns;