Přidat index.js

index.js

@@ -0,0 +1,26 @@
+const express = require('express')
+const { ping } = require('bedrock-protocol')
+require('dotenv').config()
+
+const app = express()
+
+app.listen(3000)
+
+if(!process.env.HOSTNAME) throw new Error("HOSTNAME not set")
+
+const template = (status)=> `# HELP minecraft_bedrock_check Information about liveness of target bedrock server
+# TYPE minecraft_bedrock_check gauge
+minecraft_bedrock_check{server="${process.env.HOSTNAME}"} ${status}
+`
+
+app.get('/metrics',async (req, res) => {
+   try {
+       const hostname = process.env.HOSTNAME
+       await ping({host: hostname, port: 19132, connectTimeout: process.env.TIMEOUT ?? 4000})
+       res.contentType("text/plain; charset=utf-8")
+       res.send(template("1"))
+   } catch (e) {
+       res.contentType("text/plain; charset=utf-8")
+       res.send(template("0"))
+   }
+})