docker run --rm --privileged docker/binfmt:66f9012c56a8316f9244ffd7622d7c21c1f6f28d docker run --rm --privileged docker/binfmt:66f9012c56a8316f9244ffd7622d7c21c1f6f28dYet the generic/debian10 and centos/7 images I otherwise use require no such privilege escalation to function.
It seems unnecessary and dangerous, I refuse to use such images if possible. But I did also setup a sudoers config to allow only the NFS commands that they need, just in case.
Point being that all these new tools we're using involve a lot of trust. Many of them can be treated just like curl piping to bash.
You can also pull via the sha rather than the tag, which gives you significant extra assurance.
docker pull docker/binfmt@sha256:5a9ad88945dff7dc1af2ef7c351fe3dd9f7c874eb2c912c202ced088d21c178a
Once you've confirmed you're happy with the script, I don't believe there is any issue with automating this.
docker run --rm --privileged docker/binfmt:@sha256:5a9ad88945dff7dc1af2ef7c351fe3dd9f7c874eb2c912c202ced088d21c178a
In theory, the underlying container cannot be changed, which is what most of the issues with piping curl into bash is.