Docker run throws “invalid reference format: repository name must be lowercase” using $(pwd) in volume flag

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docker run throws an "invalid reference format: repository name must be lowercase" error when using $(pwd) in the volume flag (-v). This is the command that is currently causing the issue:

docker run --rm -v $(pwd)/app/polymer:/home/polymer/app jefferyb/polymer-cli polymer build

Best Answer

For my own circumstance, the output of pwd contained a directory with a space (i.e. /something/Problematic Directory/something-else). This was resolved by wrapping $(pwd) in quotation marks to explicitly identify it as a string:

docker run --rm -v "$(pwd)/app/polymer":/home/polymer/app jefferyb/polymer-cli polymer build

The documentation I read didn't use quotation marks, however this might be better practise when using variable interpolation in shell to avoid these kind of issues.

Related Solutions

Python – Using Docker via Windows console: includes invalid characters $PWD for a local volume name

I think, the substitution of Linux command $(pwd) in Windows is "%cd%".

So, try out following command which might help you.

docker run -it --rm --name my-running-script -v "%cd%":/usr/src/myapp -w /usr/src/myapp python:2 python test.py

Docker command returns “invalid reference format”

Docker is seeing something unexpected before the image name, making it think something in your command other than the nginx:alpine is your image name. This may be an invalid - before each of your options, often seen with a copy/paste from the web. It may also be a space in your path. If it's as simple as a space in your path, then quoting it will resolve that:

docker run -d -p 9090:80 -v "$(pwd):/usr/share/nginx/html" nginx:alpine

If the above two do not resolve your issue, first make sure the following works:

docker run nginx:alpine

And then add individual parameters back into your command until you find the one that breaks it. Pay special attention to the order of your args, parameters to run must be between the run and your image name. Args after the image name are passed as a command to run. Args before the run are options to the docker top level command.

Best Answer

Related Solutions

Python – Using Docker via Windows console: includes invalid characters $PWD for a local volume name

Docker command returns “invalid reference format”

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