带有 Docker 的 Heroku - 错误 H14:没有 Web 进程正在运行 [英] Heroku with Docker - ERROR H14:No web processes running

问题描述

我正在尝试通过 Heroku 上的 Docker 容器在 express 和 Pm2 中部署一个简单的 nodejs 应用程序.

I'm trying to deploy a simple nodejs app served in express and Pm2, via a Docker container on Heroku.

按照heroku定义的步骤，容器成功推送到heroku:

Following the steps defined by heroku, the container is sucessfully pushed to heroku:

1. heroku 容器:登录
2. heroku 容器:push name-of-container -a name-of-herokuApp
3. heroku container:release name-of-container -a name-of-herokuApp
4. heroku ps:scale name-of-container=1 -a name-of-herokuApp

这是 heroku 的日志，显示运行图像和为进程分配一个 dyno 的成功容器部署日志

Here is the log of heroku showing the success on running the image and assigning a dyno to the process Container Deployment Log

这里是问题出现的时候:在访问应用程序路由时抛出 Heroku H14 错误，当进程没有 Dynos 时会发生这种情况，在我的情况下它有.错误 H14 日志

Here is when the problem comes: while accessing to the apps routes the Heroku H14 Error is throw, which happens when a proccess doesn't have Dynos, which in my case it have. Error H14 Log

我没有想法，因为这个错误引发的原因.我知道这可能是一个愚蠢的错误 XD！

I'm out of ideas as the reason this error is raising. I know it might be a silly mistake thought XD!!

这是我的应用程序的代码:

Here you got the code for my app:

const express = require('express')

const app = express()
//require('./database')


app.use(express.json())
app.use(express.urlencoded({ extended: false }))
console.log('App is Running, yaaaay') 

app.get("/", (req,res) => {
    res.send("OK")
})

app.listen(3000)

及其与 Pm2 一起运行:

and its run with Pm2:

"scripts": {
    "dev": "nodemon ./src/app",
    "start": "pm2-runtime ./src/app.js --watch --name WD-Bot"
  },

另外，这里有我的 DockerFile.我是 Docker 的新手，所以我可能在这里搞砸了 T-T?

Also, here you got my DockerFile. I'm pretty newbie on Docker, so i probably messed up on here T-T?

FROM node:12.18-alpine
ENV NODE_ENV=production
WORKDIR /usr/src/app
COPY ["package.json", "package-lock.json*", "npm-shrinkwrap.json*", "./"]
RUN npm install
COPY . .
EXPOSE 3000
CMD ["npm", "start"]

推荐答案

你做到了:

heroku container:push name-of-container -a name-of-herokuApp

您假设这是容器的名称.那是错误的.根据 https://devcenter.heroku.com/articles/container-registry-and-runtime#build-an-image-and-push 这是进程类型:

You assume that's the name of the container. That's wrong. As per https://devcenter.heroku.com/articles/container-registry-and-runtime#build-an-image-and-push that's the process type:

heroku 容器:push

您收到的错误信息是:

ERROR H14:No web processes running

您将进程命名为 wd-bot 而不是 web.

You named your process wd-bot and not web.

将您的进程类型更改为 web 后，您还必须正确绑定 $PORT.请参阅:https://help.heroku.com/P1AVPANS/why-is-my-node-js-app-crashing-with-an-r10-error
但这是一个不同的话题，是一个新问题.

After changing your process type to web you'll have to properly bind the $PORT as well. See: https://help.heroku.com/P1AVPANS/why-is-my-node-js-app-crashing-with-an-r10-error
But that's a different topic and is a new question.

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