I’m getting the following error message when trying to run a Docker container with which I want to share some data via a directory (I added the emphasis):
##[error]/usr/bin/docker: Error response from daemon: create -v /opt/vsts/work/1/s/coverage: “-v /opt/vsts/work/1/s/coverage” includes invalid characters for a local volume name, only “[a-zA-Z0-9][a-zA-Z0-9_.-]” are allowed. If you intended to pass a host directory, use absolute path.
What I don’t understand is, that to my knowledge /opt/vsts/work/1/s/coverage is an absolute path, as indicated by the first forward slash.
Can someone explain what I’m doing wrong?
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Answer
A build script was passing in “-v /opt/vsts/work/1/s/coverage” as the actual name, i.e.
docker run -v -v /opt/vsts/work/1/s/coverage:[...]
instead of
docker run -v /opt/vsts/work/1/s/coverage:[...].
Thanks @larsks for pointing me in the right direction.