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I want to mount a volume and add it to the container's PATH environment variable. I've tried the following and none is working.
docker run -it -v $(PWD):/app -e PATH=$PATH:/app/bin debian:jessie bash
docker run -it -v $(PWD):/app -e PATH='$PATH:/app/bin' debian:jessie bash
docker run -it -v $(PWD):/app -e PATH='$$PATH:/app/bin' debian:jessie bash
docker run -it -v $(PWD):/app -e PATH='\$PATH:/app/bin' debian:jessie bash
How do I append the mounted volume to PATH?
629
With a Command Line Argument The command used to launch Docker containers, docker run , accepts ENV variables as arguments. Simply run it with the -e flag, shorthand for --env , and pass in the key=value pair: sudo docker run -e POSTGRES_USER='postgres' -e POSTGRES_PASSWORD='password' ...
To add a path to the PATH environment variable In the System dialog box, click Advanced system settings. On the Advanced tab of the System Properties dialog box, click Environment Variables. In the System Variables box of the Environment Variables dialog box, scroll to Path and select it.
How to set the Environment variable in the container? To set an environment variable you should use flag -e while using docker run or docker-compose command. Environment file - If the environment variable is not overridden by docker-compose.
By default the docker build command will look for a Dockerfile at the root of the build context. The -f , --file , option lets you specify the path to an alternative file to use instead. This is useful in cases where the same set of files are used for multiple builds.
If you you use -e option, the $PATH value is the PATH of the host instead of the container.
You can do it like this:
docker run -it -v $(PWD):/app debian:jessie bash -c 'export PATH=$PATH:/app/bin; bash'
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