Elastic Beanstalk和Dockerfile ARG指令 [英] Elastic Beanstalk and Dockerfile ARG instruction

问题描述

我需要将一些参数传递给我的docker build命令.我了解可以使用Dockerfile中的ARG指令来完成此操作.现在假设我在Dockerfile中具有以下内容.

I need to pass some arguments to my docker build command. I understand that this can be done using the ARG instruction within the Dockerfile. Now assuming I have the following in my Dockerfile.

ARG myvar

并使用命令docker build --build-arg mvar=myOwnVar ...，这将起作用.

and use the command docker build --build-arg mvar=myOwnVar ..., this would work.

但是，我将AWS Elastic Beanstalk与Docker结合使用来构建映像并将其部署在容器中.问题是，

However, I am using AWS Elastic Beanstalk with Docker to build an image and deploy it in a container. So the questions are,

1. 这有可能吗?
2. 如果可以，我如何确保AWS EB将值传递给这些参数?

谢谢 苏菲尔(Sushil)

Thanks Sushil

推荐答案

昨天我开始使用AWS EB，感到很高兴，今天我需要将一些ARG传递给我的构建，并在文档中找到了

yesterday I start using AWS EB, I was happy, today I need pass some ARG to my build, found this on the docs

很难过

来源: http://docs.aws .amazon.com/elasticbeanstalk/latest/dg/command-options-specific.html

一个可能的解决方案是我当前正在做的事情，在运行docker build之前，将一些文件添加到EB并从Dockerfile中使用它

A possible solution is what I'm doing currently, before run the docker build add some files to the EB and the use it from the Dockerfile

示例，假设我在docker上需要一个变种名称TOKEN，例如

example, lets assume I need a var name TOKEN on my docker something like

RUN curl http://somemething.com?token=$TOKEN

所以我做的是

添加新的脚本文件

ADD ./curl-thing.sh /curl-thing.sh

和

if [ -f "./.env"]; then
  source ./.env
fi

现在添加一个文件名.ebextensions/my-env.config，该名称无关紧要，该名称存在于forlder .ebextensions上并具有扩展名.config

now add a file name .ebextensions/my-env.config, the name no matters just important that exists on the forlder .ebextensions and have the extension .config

files:
  "/opt/elasticbeanstalk/hooks/appdeploy/pre/02_mix_environment.sh":
    mode: "000755"
    owner: root
    group: root
    content: |
      #!/usr/bin/env bash
      EB_APP_DEPLOY_DIR=$(/opt/elasticbeanstalk/bin/get-config container -k app_deploy_dir)
      TOKEN=$(/opt/elasticbeanstalk/bin/get-config environment -k TOKEN)
      echo "export TOKEN=${TOKEN}" >> ${EB_APP_DEPLOY_DIR}/.env

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