Add listing for latest ubuntu 20.04 image

backend/package.json

@@ -11,12 +11,15 @@
     "dev-jobs": "nodemon src/jobs.ts",
     "start": "node dist/src/index.js",
     "start-jobs": "node dist/src/jobs.js",
-    "format": "prettier --write './src/**/*.{ts,tsx}'"
+    "format": "prettier --write './src/**/*.{ts,tsx}'",
+    "rnd": "nodemon src/aws-services/create-ec2-instance.ts"
   },
   "keywords": [],
   "author": "",
   "license": "ISC",
   "dependencies": {
+    "@aws-sdk/client-ec2": "^3.142.0",
+    "aws-sdk": "^2.1189.0",
     "body-parser": "^1.20.0",
     "dotenv": "^16.0.1",
     "express": "^4.18.1",

backend/src/aws-services/create-ec2-instance.ts

@@ -0,0 +1,51 @@
+import {
+  EC2Client,
+  DescribeImagesCommand,
+  DescribeImagesCommandInput,
+  DescribeImagesCommandOutput,
+  Filter,
+  EC2ClientConfig,
+} from "@aws-sdk/client-ec2";
+import { Config } from "aws-sdk";
+import { response } from "express";
+// Set the AWS Region.
+// TODO : Get info from params
+
+async function get_all_images(
+  img_names: Array<string>,
+  config: EC2ClientConfig
+): Promise<DescribeImagesCommandOutput["Images"]> {
+  // Create anAmazon EC2 service client object.
+  const ec2Client = new EC2Client(config);
+  const input: DescribeImagesCommandInput = {
+    Filters: [
+      { Name: "architecture", Values: ["x86_64"] },
+      { Name: "is-public", Values: ["true"] },
+      { Name: "image-type", Values: ["machine"] },
+      { Name: "state", Values: ["available"] },
+      {
+        Name: "name",
+        Values: img_names,
+      },
+    ],
+    Owners: ["099720109477"],
+    IncludeDeprecated: false,
+  };
+  const command = new DescribeImagesCommand(input);
+  const response = await ec2Client.send(command);
+  return response.Images.sort(
+    (a, b) =>
+      new Date(a.CreationDate).getTime() - new Date(b.CreationDate).getTime()
+  );
+}
+
+async function get_latest_image(
+  config: EC2ClientConfig,
+  img_names: Array<string> = [
+    "ubuntu/images/hvm-ssd/ubuntu-focal-20.04-amd64-server-????????",
+  ]
+) {
+  let resp = (await get_all_images(img_names, config)).pop();
+  console.log(resp);
+  return resp;
+}