https://yukara-ikemiya.github.io/arayuru-genjitu-blog/en/tags/docker/ Recent content in Docker on Talks on Every Reality Hugo en-US Thu, 23 Jan 2020 00:00:00 +0000 https://yukara-ikemiya.github.io/arayuru-genjitu-blog/en/post/20200123/ Thu, 23 Jan 2020 00:00:00 +0000 https://yukara-ikemiya.github.io/arayuru-genjitu-blog/en/post/20200123/ <h1 id="goal">Goal</h1> <p>When building a Docker image, we often install various C++ libraries. However, when working inside the container as a non-root user, header files may not be automatically included in the default search paths, which can be inconvenient.</p> <p>We want to configure this neatly during the image build (inside the Dockerfile). However, the <code>ENV</code> directive only sets environment variables directly or for the root context, and might not always propagate properly to custom non-root users added later in certain shell sessions.</p>