You'll have a hard time finding people who will say you are secure, but there are no known vulnerabilities allowing breaking out of a default-configuration docker container at this time.
JessFraz has been running https://contained.af/, which is a much more locked-down than the default container, for ages, and no one has broken out and captured the flag yet.
If you do some legwork, it's not too bad currently.
JessFraz has been running https://contained.af/, which is a much more locked-down than the default container, for ages, and no one has broken out and captured the flag yet.
If you do some legwork, it's not too bad currently.