如何在Docker容器内设置Java堆大小（Xms / Xmx）？ [英] How to set Java heap size (Xms/Xmx) inside Docker container?

问题描述

在提出这个问题时，Docker看起来足够新，无法在网络上回答这个问题。我发现唯一的地方是这篇文章作者说这很难，就是这样。

解决方案

我同意这取决于你使用的是什么容器。如果您正在使用官方 Tomcat图片，它看起来很简单，你将需要使用堆设置传递 JAVA_OPTS 环境变量：

 码头运行--rm -e JAVA_OPTS =' -  Xmx1g'tomcat 
  

请参阅如何设置JVM参数？

As of raising this question, Docker looks to be new enough to not have answers to this question on the net. The only place I found is this article in which the author is saying it is hard, and that's it.

解决方案

I agree that it depends on what container you're using. If you are using the official Tomcat image, it looks like it's simple enough, you will need to pass the JAVA_OPTS environment variable with your heap settings:

docker run --rm -e JAVA_OPTS='-Xmx1g' tomcat

See How to set JVM parameters?

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