我们需要将docker-compose.yml转移到生产服务器吗？ [英] Do we need to transfer docker-compose.yml to Production server?
问题描述
我对docker和docker compose还是很陌生。我设法构建了映像并将其推送到Docker Hub。我构建的应用程序很简单，包含2张图像 php7-apache 和 mysql 官方图像。全部在 docker-compose.yml 中声明。
I'm pretty new to docker and docker compose. I have managed to build my image and push it to Docker Hub. The app I built is simple and consists of 2 images php7-apache and mysql offical images. All declared in docker-compose.yml.
我通知我的团队使用 docker pull ... 从Docker Hub存储库中提取我构建的映像。使用 docker run -d ... 启动它。但是，当我们在生产服务器中运行 docker ps 时，仅运行1个进程，但没有MySQL。
I informed my team to pull the image I built from my Docker Hub repository using docker pull ... and start it using docker run -d .... But when we run docker ps in the production server, only 1 process is running but no MySQL.
通常，当我使用 docker-compose up 在本地运行时，我在终端机上得到了这个：
使用默认驱动程序
创建网络 myntrelease_default创建myntrelease_mysql_1
创建myntrelease_laravel_1
然后，我可以使用 docker-compose exec mysql bash 并在那里调整一些表。到现在为止还挺好。
Usually, when I run locally using docker-compose up I get this in the terminal:
Creating network "myntrelease_default" with the default driver
Creating myntrelease_mysql_1
Creating myntrelease_laravel_1
I can then access the MySql using docker-compose exec mysql bash and tweak some tables there. So far so good.
问题是当生产服务器不可用时，如何在生产服务器中使用 docker-compose.yml 图像本身？
Question is how can I use docker-compose.yml in the production server when it's not available because its in the image itself?
推荐答案
简短答案：是的，您需要在生产环境中使用docker-compose.yml。
Short answer: Yes, you need the docker-compose.yml in the production environment.
说明：每个图像都是独立的。由于您的映像独立于MySQL映像（至少我从您的问题中了解到），并且docker-compose.yml定义了两者之间的关系（例如，如何在php7-apache映像中访问MySQL），在生产中需要docker-compose.yml。即使您只有一个映像，使用docker-compose.yml通常也很好，这样可以清楚地定义设置和配置，例如卷安装，端口等。
Explanation: Every image is independent. Since your image is independent of MySQL image (at least that's what I understand from your questions), and docker-compose.yml defines the relationship between the two (eg. how MySQL is accessible in the php7-apache image), then you definitely need the docker-compose.yml in production. Even if you only have a single image its usually good to use docker-compose.yml so that settings and configuration like volume mounts, ports etc. can be clearly defined.
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