Files
workshop/aula-01/app.js
Allyson de Paula 1ea1a98e60 aula-01: Docker Compose com restart policy
App Node.js que trava após MAX_REQUESTS para demonstrar
como o Docker Compose lida com containers que falham.
2025-12-25 13:31:02 -03:00

37 lines
739 B
JavaScript

const http = require("http");
const MAX_REQUESTS = Number(process.env.MAX_REQUESTS || 3);
let requestCount = 0;
console.log("MAX_REQUESTS =", MAX_REQUESTS);
const server = http.createServer((req, res) => {
if (req.url === "/health") {
if (requestCount > MAX_REQUESTS) {
// app travado, mas processo vivo
return;
}
res.writeHead(200);
res.end(`ok`);
return;
}
requestCount++;
console.log("request", requestCount);
if (requestCount > MAX_REQUESTS) {
console.log(`🔥 App travado após ${MAX_REQUESTS} requests`);
return;
}
res.writeHead(200);
res.end(`Req -> ${requestCount}/${MAX_REQUESTS}`);
});
server.listen(3000, () => {
console.log("App rodando na porta 3000");
});