CODEWITHSUNDEEP
dockerbuildah
MiamiBeach
MiamiBeach

Reputation: 3497

Docker build or buildah: how do I set many env variables from a file?

I know several ways to set env variables while building an image: I can use ARG or ENV in Dockerfile.

Also I know I can pass text file with variables to docker run command and get env variables set this way: docker run --env-file=env_file_name alpine env

What I want to understand is how can I pass text file with env variables to by image during build. I.e. I want to use something like

docker build use-env-file=.env

or

buildah bud use-env-file=.env

Is it possible?

Upvotes: 0

Views: 377

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