如何在 docker 镜像中包含修改后的配置文件? [英] How to include modified configuration files in a docker image?

问题描述

我是 Docker 新手.一位 devop 同事在 github 存储库中创建了一个 WSO2 docker 映像.他使用这些图像来创建登台和生产实例.

I am new to Docker. A devop colleague has created a WSO2 docker image in a github repository. He uses such images to create staging and production instances.

docker-compose.yml 是:

#openssl req        -newkey rsa:2048 -nodes -keyout domain.key        -x509 -days 365 -out domain.crt

version: '2'

services:
  mysql:
    image: mysql:5.7.10
    ports:
      - "3306:3306"
    volumes:
      - ./docker-entrypoint-initdb.d:/docker-entrypoint-initdb.d
    environment:
      - MYSQL_DATABASE=userdb
      - MYSQL_USER=dbwso2am
      - MYSQL_PASSWORD=dbwso2am
      - MYSQL_ROOT_PASSWORD=dbwso2am
  wso2am:
    image: salte/wso2am:1.9.1
    depends_on:
      - mysql
    volumes:
      - ./keys:/keys
    environment:
      - VIRTUAL_HOST=apimanager.qa.xxx.build
      - VIRTUAL_PORT=9443
      - VIRTUAL_PROTO=https
      - OFFSET=3
      - EXTERNAL_HOSTNAME=apimanager.qa.xxx.build
      - DATABASE_HOSTNAME=mysql
      - DATABASE_PORT=3306
      - DATABASE_USER=dbwso2am
      - DATABASE_PASSWORD=dbwso2am
      - PUBLIC_CERTIFICATE=/keys/domain.crt
      - PRIVATE_KEY=/keys/domain.key
      - PRIVATE_KEY_PASSWORD=wso2am
      - ADMIN_PASSWORD=admin

我想修改一些 WSO2 配置 存储在一些 xml 文件并将其推送到生产环境.

I would like to modify some WSO2 configuration stored in some xml file and push it to production.

我应该如何进行?这可能吗?我应该修改 docker 镜像吗?如果是怎么办?或者我应该将 WSO2 安装在经典的 github 存储库中，在那里修改 xml 并根据该存储库的内容重新创建一个 docker 映像?

How should I proceed? Is this possible? Should I modify the docker image? If yes how? Or should I install WSO2 in a classic github repository, modify the xml there and re-create a docker image based on this repository's content?

推荐答案

你不需要为了改变一个xml而重新创建整个图像.您可以通过卷或命令替换它.例如，我已链接共享文件夹，您可以在容器上运行命令.假设您在/home/share 中有 Share 文件夹，并且它链接到/c/Share因此，您将新的 xml 文件放入 Share 中，容器也可以看到它.接下来你运行这个命令:

You don't need to create anew the entire image just to change one xml. You can replace it through volumes or command. For example i have linked shared folder and you can run commands on the container. Let say you have Share folder in /home/share and its linked to /c/Share So you put your new xml file in Share and the container can see it too. Next you run this command:

docker exec a5866aee4e90 cp -i /home/share/some.xml /home/the/path/you/chose

Docker exec 用于运行命令.您可以使用以下命令进入控制台并运行多个命令:

Docker exec is used to run commands. You can enter the console and run multiple commands with this:

docker exec -it a5866aee4e90 bash

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