Auto Create Oracle Cloud Free Tier VMs for a Minecraft server.

oracle-cloud-autocreate.js

// Find the 'compute' iframe window within the document if it isn't already the current window in devtools.
const computeWindow = document.querySelector("#compute-wrapper")
  ? window
  : document.querySelector("#sandbox-compute-container")?.contentWindow;
if (!computeWindow) throw new Error("Failed to find iframe window");

const createBtn = computeWindow.document.querySelector(
  ".oui-savant__Panel--Footer .oui-button.oui-button-primary"
);
if (!createBtn || createBtn.textContent !== "Create")
  throw new Error("Failed to find 'Create' button");

const contentsElmt = computeWindow.document.querySelector(
  ".oui-savant__Panel--Contents"
);
if (!contentsElmt) throw new Error("Failed to find contents element");

const headerElmt = computeWindow.document.querySelector(
  ".oui-savant__Panel--Header"
);
if (!headerElmt) throw new Error("Failed to find header element");

const adElmts = computeWindow.document.querySelectorAll(
  ".oui-savant__card-radio-option"
);
if (adElmts.length == 0)
  throw new Error("Failed to find availability domains elements");

// Create a new window to cloud.oracle.com, and then periodically refresh it.
const sessionWindow = window.open(
  "https://cloud.oracle.com",
  "_blank",
  "height=400,width=400;popup=true"
);

// Try another availability domain if more than one is available
let TRY_DIFFERENT_AD = true;
let lastAd = 0;

const tryNextAvailabilityDomain = () => {
  if (TRY_DIFFERENT_AD && adElmts.length > 0) {
    adElmts[lastAd].click();
    lastAd = (lastAd + 1) % adElmts.length;
  }
};

// Status Bar Element
const statusElmt = document.createElement("div");
statusElmt.setAttribute(
  "style",
  `
	z-index: 9999999999999;
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: 2rem;
	color: white;
	background-color: #00688c;
	box-shadow: 0px 0px 10px -4px black;
	white-space: break-spaces;
`
);

const setStatusHeight = () => {
  statusElmt.style.height = `${headerElmt.clientHeight}px`;
};

setStatusHeight();
computeWindow.addEventListener("resize", setStatusHeight);
contentsElmt.prepend(statusElmt);

// Log Style and Info
const logStyle = (color) => `background-color: #222; color: ${color}`;

console.clear();

console.info(
  "%c *** Started Oracle compute instance creation script *** ",
  logStyle("#e0b414")
);
console.info("%c *** DO NOT CLOSE THE POPUP WINDOW! *** ", logStyle("#ff4d4d"));
console.info(
  "%c *** Filter logs with '***' to only show outputs from this script. *** ",
  logStyle("#f0dd99")
);
console.info(
  "%c *** It's advised to close dev tools while the script is running, as over long periods of time it may crash (Oracle's fault). *** ",
  logStyle("#f0dd99")
);
console.info(
  "%c *** You can change the interval duration between clicks on the fly by changing the value of the variable `INTERVAL_DURATION` - default is 30 (seconds). *** ",
  logStyle("#f0dd99")
);

const currentTime = () => {
  const now = new Date();
  const hours = now.getHours().toString().padStart(2, "0");
  const minutes = now.getMinutes().toString().padStart(2, "0");
  const seconds = now.getSeconds().toString().padStart(2, "0");
  return `${hours}:${minutes}:${seconds}`;
};

// Interval Duration
let INTERVAL_DURATION = 30;

const countdownDuration = () => Math.round(INTERVAL_DURATION);

let countdown = countdownDuration();

// Interval to click the 'Create' button and reload the new window every `INTERVAL_DURATION` milliseconds.
void setInterval(() => {
  if (countdown > 0) {
    statusElmt.style.backgroundColor = "#00688c";
    statusElmt.innerHTML = `Clicking in <b>${countdown} seconds</b>`;
    countdown--;
    return;
  }

  sessionWindow.location.reload();
  tryNextAvailabilityDomain();
  createBtn.click();
  statusElmt.style.backgroundColor = "#44bd50";
  statusElmt.innerHTML = `Create clicked!`;
  console.log(
    `%c *** Clicked 'Create' at ${currentTime()} *** `,
    logStyle("#7cde6f")
  );
  countdown = countdownDuration();
}, 1000);

oracle-cloud-autocreate.md

Oracle Cloud AutoCreate

A script to automatically create Oracle Cloud Free Tier VMs for a Minecraft server.

How to use

1. Follow the steps at Oracle Cloud Free Minecraft Server
2. Ensure all fields are entered correctly as the blog post states
3. Open the Developer Tools (F12) in your browser, and go to the Console tab
4. Copy and paste the contents of oracle-cloud-autocreate.js into the console and press Enter
5. Close the Developer Tools, make sure your computer doesn't go to sleep, and pray

Notes

DO NOT CLOSE THE POPUP WINDOW THAT OPENS!

Filter logs with '***' to only show outputs from this script

You will want to close the Developer Tools after running the script to prevent the browser from crashing (Oracle's website has issues)