docker run --user=nobody -t testssl.sh example.com
Or pull image from docker hub, then run:
docker run --user=nobody -t drwetter/testssl.sh example.com
This is a experimental version with Debian Linux. Don't rely on it! Things will break.
Besides the "latest" branch supported tags are currently "2.9dev" (equal to "latest"), and
"2.9.5" = "stable": docker run -t drwetter/testssl.sh:stable example.com.