index.ts

import * as pulumi from "@pulumi/pulumi";
import * as aws from "@pulumi/aws";
import * as textToImage from "text-to-image";

// Make a bucket, which computes a randomly generated name.
const bucket = new aws.s3.Bucket("my-bucket");

// When the bucket ID is available, render a buffer of PNG bytes containing it.
const image = bucket.id.apply(bucketID => {
    const dataUri = textToImage.generateSync(`Rendered with 💜 to s3://${bucketID} with Pulumi.`, {
        verticalAlign: "center",
        fontSize: 14,
        textColor: "#ffffff",
        bgColor: "#66489c",
    });

    return Buffer.from(dataUri.split(",")[1], "base64");
});

// Write the image to S3.
const bucketObject = new aws.s3.BucketObject("my-image.png", {
    bucket: bucket.id,
    contentBase64: image.apply(i => i.toString("base64")), // Convert the buffer to base 64.
    contentType: "text/png",
});

export const bucketID = bucket.id;