Detect running in a container

Author: nathen418

features/statuspage.ts

@@ -1,12 +1,17 @@
 import axios from "axios";
 import { Client } from "discord.js";
+import { isDocker } from "../util";
 
 export default (client: Client): void => {
+
+  // Check if the bot is running in a docker container by checking if the env variable UPTIME_KUMA_CONTAINERIZED is true
+  if (isDocker()) return;
   const updateStatus = async () => {
     // This function is called every 1 minutes and pings the network status page for uptime monitoring
     await axios.get(
       `https://${process.env.UPTIME_KUMA_MONITOR_DOMAIN}/api/push/${process.env.UPTIME_KUMA_MONITOR_ID}?msg=OK&ping=${client.ws.ping}`
     );
+    console.log("ping anyways")
     setTimeout(updateStatus, 1000 * 60);
   };
   updateStatus().catch((err) => console.log(err));

index.ts

@@ -4,6 +4,7 @@ import WOKCommands from "wokcommands";
 import path from "path";
 import chalk from "chalk";
 import dotenv from "dotenv";
+import { isDocker } from "./util";
 
 // import custom modules
 import { checkForRoles, checkIfCollectionsExist } from "./rolesOps";
@@ -27,6 +28,7 @@ const client = new DiscordJs.Client({
 client.on("ready", async () => {
   if (client.user) {
     console.log(chalk.green(`Logged in as ${client.user.tag}!`));
+    if (isDocker()) console.log(chalk.blueBright(`Running in a Docker container!`));
     console.log(
       chalk.yellow.bold(`I am running version: ${process.env.VERSION}`)
     );

package-lock.json

@@ -24,7 +24,6 @@
     "axios": "^0.27.2",
     "chalk": "4.1.2",
     "discord.js": "^13.9.2",
-    "is-docker": "^3.0.0",
     "mongoose": "^6.5.4",
     "path": "^0.12.7",
     "prettier": "^2.7.1",

package.json

@@ -1,6 +1,38 @@
+import fs from 'node:fs';
 export function sleep(ms: number) {
   // Create new promise that resolves itself after a delay of <ms>
   return new Promise((resolve: (args: void) => void) =>
     setTimeout(resolve, ms)
   );
 }
+
+
+//! This code was taken from the package `is-docker` and modified to work here with esm
+//! Original repository: https://github.com/sindresorhus/is-docker
+let isDockerCached: boolean;
+
+function hasDockerEnv() {
+    try {
+        fs.statSync('/.dockerenv');
+        return true;
+    } catch {
+        return false;
+    }
+}
+
+function hasDockerCGroup() {
+    try {
+        return fs.readFileSync('/proc/self/cgroup', 'utf8').includes('docker');
+    } catch {
+        return false;
+    }
+}
+
+export function isDocker() {
+    // TODO: Use `??=` when targeting Node.js 16.
+    if (isDockerCached === undefined) {
+        isDockerCached = hasDockerEnv() || hasDockerCGroup();
+    }
+
+    return isDockerCached;
+}