How to download golang and node in docker container

huangapple
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英文:

How to download golang and node in docker container

问题

我正在构建一个简单的Node服务器，以在Docker中运行。我引入了一个小的Golang模块，可以通过运行以下命令来执行：

  1. go run /root/component-review-handler/downloader/main.go -build 1621568 -outdir /usr

我目前在本地的Node服务器上通过在启动时运行以下脚本来运行它：

  1. exec(
  2.     `cd ${process.env.ROOT_PATH}/component-review-handler && go run cmd/downloader/main.go`,
  3.     (error, stdout, stderr) => {
  4.       if (error) {
  5.         logger.error(`error: ${error.message}`)
  6.         return
  7.       }
  8.       if (stderr) {
  9.         logger.log(`stderr: ${stderr}`)
  10.         return
  11.       }
  12.       logger.log(`stdout: ${stdout}`)
  13.     }
  14.   )

但是当我在Docker中运行代码时，我得到以下错误：

  1. error: Command failed: cd /usr/src/app/component-review-handler && go run cmd/downloader/main.go
  3. /bin/sh: 1: go: not found

有人知道我如何在我的Docker容器中安装Node和Golang吗？

当前的Dockerfile如下：

  1. FROM node:14
  3. WORKDIR /usr/src/app
  5. COPY package*.json ./
  7. RUN npm install
  9. COPY . .
  11. ENV NODE_TLS_REJECT_UNAUTHORIZED='0'
  13. EXPOSE 3000
  15. CMD ["node", "server.js"]
英文:

I am building a simple node server to run in docker. I have introduced a small golang module that can be executed by running

  1. go run /root/component-review-handler/downloader/main.go -build 1621568 -outdir /usr

I am currently running this locally in my node server by running the follow script on startup

  1. exec(
  2.     `cd ${process.env.ROOT_PATH}/component-review-handler && go run cmd/downloader/main.go`,
  3.     (error, stdout, stderr) => {
  4.       if (error) {
  5.         logger.error(`error: ${error.message}`)
  6.         return
  7.       }
  8.       if (stderr) {
  9.         logger.log(`stderr: ${stderr}`)
  10.         return
  11.       }
  12.       logger.log(`stdout: ${stdout}`)
  13.     }
  14.   )

But When I run the code in docker, I get the following error

  1. error: Command failed: cd /usr/src/app/component-review-handler && go run cmd/downloader/main.go
  3. /bin/sh: 1: go: not found

Does anyone know how I can install both node and golang in my docker container?
Current Dockerfile

  1. FROM node:14
  3. WORKDIR /usr/src/app
  5. COPY package*.json ./
  7. RUN npm install
  9. COPY . .
  11. ENV NODE_TLS_REJECT_UNAUTHORIZED='0'
  13. EXPOSE 3000
  15. CMD ["node", "server.js" ]

答案1

得分: 4

Go是一种编译语言，通常不需要Go工具链来运行Go程序。

我会使用多阶段构建来实现这个。第一阶段是使用FROM golang来获取工具链并构建二进制文件；第二阶段使用COPY --from将第一个镜像复制到通常在搜索路径上的目录中。

  1. FROM golang:1.17 AS downloader
  2. WORKDIR /app                       # 不在/go目录下
  3. COPY component-review-handler/ ./  # （请仔细检查COPY语法）
  4. RUN go build -o downloader ./cmd/downloader
  6. FROM node:14
  7. # vvv 添加这一行
  8. COPY --from=downloader /app/downloader /usr/local/bin/
  10. # 与之前相同
  11. WORKDIR /usr/src/app
  12. COPY package*.json ./
  13. RUN npm install
  14. COPY . .
  15. ENV NODE_TLS_REJECT_UNAUTHORIZED='0'
  16. EXPOSE 3000
  17. CMD ["node", "server.js"]

由于二进制文件现在位于/usr/local/bin，这是默认的$PATH目录，所以在你的代码中，你可以直接运行它，而不需要cd或go run部分。

  1. const { execFile } = require('child_process');
  2. execFile('downloader',
  3.          (error, stdout, stderr) => { ... });
英文:

Go is a compiled language, and you shouldn't usually need the Go toolchain just to run a Go program.

I'd use a multi-stage build for this. The first stage is FROM golang to have the toolchain and build the binary; the second COPY --from the first image into a directory that's normally on the search path.

  1. FROM golang:1.17 AS downloader
  2. WORKDIR /app                       # not under /go
  3. COPY component-review-handler/ ./  # (double-check this COPY syntax)
  4. RUN go build -o downloader ./cmd/downloader
  6. FROM node:14
  7. # vvv add this line
  8. COPY --from=downloader /app/downloader /usr/local/bin/
  10. # same as before
  11. WORKDIR /usr/src/app
  12. COPY package*.json ./
  13. RUN npm install
  14. COPY . .
  15. ENV NODE_TLS_REJECT_UNAUTHORIZED='0'
  16. EXPOSE 3000
  17. CMD ["node", "server.js"]

Since the binary is now in /usr/local/bin which is a default $PATH directory, in your code you can just run it, without the cd or go run parts

  1. const { execFile } = require('child_process');
  2. execFile('downloader',
  3.          (error, stdout, stderr) => { ... });

huangapple
  • 本文由 发表于 2021年12月10日 03:19:02
  • 转载请务必保留本文链接：https://go.coder-hub.com/70295544.html
  • docker
  • go
  • node.js
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