api.rubygems.org is currently experiencing issues with IPv6 setup: this hostname has 4 IPv6 addresses, but responds on neither of them. Neither to ping, nor to TCP connection attempts. When you are running gem, your gem tries IPv6 addresses first and times out on them, not having time to even try IPv4 addresses. The solution is … Read more
This is due to the fact that as Wheezy and Jessie have been integrated into the archive.debian.org structure recently, we are now removing all of Wheezy and all non-LTS architectures of Jessie from the mirror network starting today. (As you can read here) A solution (according to https://github.com/debuerreotype/docker-debian-artifacts/issues/66#issuecomment-476616579) is to add this line: RUN sed … Read more