如何在 docker 文件中安装 golang 包？

Question

我是 docker 新手，我想为我的 django 应用程序设置 docker-compose。在我的应用程序的后端，我也有 golang 包，并使用子进程库在 djang 中运行它。
但是，当我想使用安装包go install github.com/x/y@latest然后将其二进制文件复制到项目目录时，它给了我错误：package github.com/x/y@latest: cannot use path@version syntax in GOPATH mode
我在互联网上搜索了很多，但没有找到解决我的问题的解决方案。你能告诉我我错在哪里吗？

这是我的Dockerfile：

FROM golang:1.18.1-bullseye as go-build
       
# Install go package
RUN go install github.com/hakluke/hakrawler@latest \
 && cp $GOPATH/bin/hakrawler /usr/local/bin/
 
# Install main image for backend
FROM python:3.8.11-bullseye

# set environment variables
ENV PYTHONDONTWRITEBYTECODE 1
ENV PYTHONUNBUFFERED 1

# Install Dist packages
RUN apt-get update \
    && apt-get -y install --no-install-recommends software-properties-common libpq5 python3-dev musl-dev git netcat-traditional golang \
    && rm -rf /var/lib/apt/lists/

# Set work directory
WORKDIR /usr/src/redteam_toolkit/

# Install dependencies
RUN pip install --upgrade pip
COPY ./requirements.txt .
RUN pip install -r requirements.txt

# Copy project, and then the go package
COPY . .
COPY --from=go-build /usr/local/bin/hakrawler /usr/src/redteam_toolkit/toolkit/scripts/webapp/

docker-compose.yml：

version: '3.3'

services:
  webapp:
    build: .
    command: python manage.py runserver 0.0.0.0:4334
    container_name: toolkit_webapp
    volumes:
      - .:/usr/src/redteam_toolkit/
    ports:
      - 4334:4334
    env_file:
      - ./.env
    depends_on:
      - db

  db:
    image: postgres:13.4-bullseye
    container_name: database
    volumes:
      - postgres_data:/var/lib/postgresql/data/
    environment:
      - POSTGRES_USER=user
      - POSTGRES_PASSWORD=password
      - POSTGRES_DB=redteam_toolkit_db

volumes:
  postgres_data:

get.py目录内的文件，/usr/src/redteam_toolkit/toolkit/scripts/webapp/仅运行 go 包，并列出该目录中的文件：

import os
import subprocess

BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
print(f"Current path is: {BASE_DIR}")

def go(target_url):
    run_go_package = subprocess.getoutput(
        f"echo {target_url} | {BASE_DIR}/webapp/hakrawler -t 15 -u"
    )
    list_files = subprocess.getoutput(f"ls {BASE_DIR}/webapp/")
    
    print(run_go_package)
    print(list_files)

go("https://example.org")

然后我就跑：

$ docker-compose up -d --build

$ docker-compose exec webapp python toolkit/scripts/webapp/get.py

输出是：

Current path is: /usr/src/redteam_toolkit/toolkit/scripts
/bin/sh: 1: /usr/src/redteam_toolkit/toolkit/scripts/webap/hakrawler: not found
__init__.py
__pycache__
scr.py
gather.py

Answer 1

这看起来非常适合多阶段构建：

FROM golang:1.18.0 as go-build
       
# Install packages
RUN go install github.com/x/y@latest \
 && cp $GOPATH/bin/pacakge /usr/local/bin/
 
FROM python:3.8.11-bullseye as release
...
COPY --from=go-build /usr/local/bin/package /usr/src/toolkit/toolkit/scripts/webapp/
...

您的撰写文件也需要更新，它/usr/src/redteam_toolkit使用卷挂载屏蔽了整个文件夹。删除该卷安装即可查看映像的内容。