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.
What is the difference between CMD and ENTRYPOINT in a Dockerfile?
Feb 4, 2014 · This command is specified in the Dockerfile using the CMD instruction. For example, if you have a Dockerfile with CMD ["echo", "Hello Docker"], when you run the Docker container without …
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 to copy file from host to container using Dockerfile
May 26, 2015 · Build the image from the Dockerfile --> docker build -t myubuntu c:\docker\ Build the container from your new image myubuntu --> docker run -d -it --name myubuntucontainer myubuntu …
How to copy multiple files in one layer using a Dockerfile?
May 15, 2015 · The following Dockerfile contains four COPY layers: COPY README.md ./ COPY package.json ./ COPY gulpfile.js ./ COPY __BUILD_NUMBER ./ How to copy these files using one …
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 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 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 …
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 ...
Understanding "VOLUME" instruction in DockerFile - Stack Overflow
Jan 30, 2017 · In short: No, your VOLUME instruction is not correct. Dockerfile's VOLUME specify one or more volumes given container-side paths. But it does not allow the image author to specify a host …