docker - 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 …
Docker: adding a file from a parent directory - Stack Overflow
Jul 2, 2014 · Instruct Docker to set context: to the parent folder. For example if you have a Documents parent folder with /ssl and /my-proj subfolders you could instruct Docker to copy …
docker - Correct way to detach from a container without stopping …
In Docker 1.1.2 (latest), what's the correct way to detach from a container without stopping it? So for example, if I try: docker run -i -t foo /bin/bash or docker attach foo (for already running
How to fix Docker: Permission denied - Stack Overflow
From the official Docker documentation "Manage Docker as a non-root user": ⚠️ Warning The docker group grants root-level privileges to the user. For details on how this impacts security in …
Docker - How can run the psql command in the postgres container?
May 8, 2016 · docker-compose -f < specific docker-compose.yml> exec postgres bash For example if you want to run the command with a docker-compose file called local.yml, here the …
Docker run -p ?/? (what are this two port numbers and what they ...
Jun 1, 2020 · The Docker run reference and Container networking Docker documentation explain the -p syntax.
docker - Difference between RUN and CMD in a Dockerfile - Stack …
May 26, 2016 · I found the Docker RUN vs CMD vs ENTRYPOINT article very helpful to understand the difference between them: RUN - RUN instruction allows you to install your …
How can I reduce the disk space used by docker? - Stack Overflow
If I run 'docker images' command, the deleted images are not listed in the output of 'docker images' command (but the disk space is not cleaned up). How can I improve (ie. reduce) the …
How is Docker different from a virtual machine? - Stack Overflow
I keep rereading the Docker documentation to try to understand the difference between Docker and a full VM. How does it manage to provide a full filesystem, isolated networking …
How do I pass environment variables to Docker containers?
There are several ways to pass environment variables to the container including using docker-compose (best choice if possible). I recommend using an env file for easier organization and …