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RAILS_ENV，NODE_ENV独立的Docker映像

[英]RAILS_ENV, NODE_ENV independent Docker image

原文 2018-12-12 21:35:51 5 1 ruby-on-rails/ node.js/ docker/ environment-variables/ docker-image

I've got an image with a Rails application that sets RAILS_ENV before installing gems, node packages, precompiling assets. 我有一个带有Rails应用程序的映像，该映像在安装gem，节点包，预编译资产之前设置了RAILS_ENV 。

I'm not sure, but I can imagine that assets:precompile would behave differently depending on the environment (minifying assets or not). 我不确定，但是我可以想象到， assets:precompile行为将取决于环境（是否缩小资产）而有所不同。

Can you imagine having to put anything environment specific into Dockerfile ? 您能想象必须在Dockerfile放入任何特定于环境的Dockerfile吗？ Should I avoid that? 我应该避免这种情况吗？ I don't like the idea of having to have environment specific images. 我不喜欢必须具有特定于环境的图像的想法。

1 个解决方案

You need to specify RAILS_ENV at least for precompiling assets. 您至少需要为预编译资产指定RAILS_ENV 。 Specifically for this command, not for the whole image. 专门用于此命令，而不是整个图像。 Or else assets would build with non-production settings, would have different fingerprints, not those expected by your target environment. 否则资产将使用非生产设置进行构建，具有不同的指纹，而不是目标环境所期望的指纹。

So, with regard to assets managed by sprockets , you're fine as long as your environments' sprockets settings match those of production environment. 因此，对于由sprockets管理的资产，只要您环境的sprockets设置与生产环境的设置相匹配，就可以了。