Tiny core linux based packer container for easily getting packer binaries on your box
docker run --rm -ti -v pwd:/cwd packer inspect test-template.json
I pretty much redid the following image but with tinycore and the official packer download URL.
https://registry.hub.docker.com/u/sequenceiq/packer/
They also provide the following example that should work with this image as well:
$ alias packer='docker run -it --rm -v $(pwd):/cwd -w /cwd cameronbrunner/packer'