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I'm seeing below error while running ubuntu-docker image that I built using following Dockerfile. Need some advice what am I missing here:

Dockerfile :

FROM scratch ADD https://partner-images.canonical.com/core/bionic/current/ubuntu-bionic-core-cloudimg-amd64-root.tar.gz / ENTRYPOINT ["/bin/bash"]

$ docker run -it --entrypoint /bin/bash d36318a56ad3

/usr/bin/docker-current: Error response from daemon: invalid header field value "oci runtime error: container_linux.go:247: starting contaiused "exec: \"/bin/bash\": stat /bin/bash: no such file or directory"\n".

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instead of using https link to the tar.gz file

download the tar.gz file locally

and do an add with the local file

wget https://partner-images.canonical.com/core/bionic/current/ubuntu-bionic-core-cloudimg-amd64-root.tar.gz

and Dockerfile starts with

FROM scratch
ADD ubuntu-bionic-core-cloudimg-amd64-root.tar.gz /
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  • docker ADD untars the file only if it's local : docs.docker.com/engine/reference/builder/#add - quote "if <src> is a local tar archive in a recognized compression format (identity, gzip, bzip2 or xz) then it is unpacked as a directory. Resources from remote URLs are not decompressed. " – Koen Dec 22 '20 at 16:21

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