Dockerfile if else condition with external arguments
Apr 27, 2017 · Accepted answer does not cover "if else condition" part of the question. Would be better to rename it to "Dockerfile with external arguments" if condition check didn't mean to be a requirement.
dockerfile - How do I set environment variables during the "docker ...
I'm trying to set environment variables in docker container during the build but without success. Setting them when using run command works but I need to set them during the build. Dockerfile FROM ...
What's the difference between Docker Compose vs. Dockerfile
Jul 4, 2019 · Dockerfile and Docker Compose are two different concepts in Dockerland. When we talk about Docker, the first things that come to mind are orchestration, OS level virtualization, images, …
How can I set an image name in a Dockerfile? - Stack Overflow
Dec 17, 2025 · Tagging of the image isn't supported inside the Dockerfile. This needs to be done in your build command. However there are multiple ways to build an image. docker-compose.yml You can …
How does docker-compose.yml and Dockerfile work together?
Mar 16, 2021 · The difference between Dockerfile and Compose file Docker can build images automatically by reading the instructions from a Dockerfile Compose is a tool for defining and running …
How to get an environment variable value into Dockerfile during …
Mar 19, 2019 · To clarify @TomHennen's comment, piping the Dockerfile to docker build - is, specifically, what doesn't work when you reference relative paths from your Dockerfile, regardless of …
How do I run a docker instance from a DockerFile?
Mar 18, 2016 · Download Dockerfile and Build a Docker Image Download the Dockerfile to a directory on your machine, and from that same directory, run the following docker build command. Make sure …
How do I build a docker image if the name of the Dockerfile isn't ...
To replace a Dockerfile with a different one you do it like this: dockerfeed -d Dockerfile.app . | docker build -t deepak/ruby - And voilà. Dockerfeed is doing the same as docker build. It packs the source …
dockerfile - Purpose of FROM command - Docker file - Stack Overflow
Jan 2, 2019 · Main purpose of Docker container is to avoid carrying guest OS in every container, as shown below. As mentioned here, The FROM instruction initializes a new build stage and sets the …
What is the point of WORKDIR on Dockerfile? - Stack Overflow
Jun 27, 2018 · However, in a Dockerfile, each RUN command starts back at the root directory! That's a gotcha for docker newbies, and something to be aware of. So not only does WORKDIR make a more …