I have recently inherited an AWS installation with Docker. It has Ubuntu 16.04.6! php7.0. It currently has 105 packages that need updating and 28 security updates. So, I ran
sudo apt update
Then I got
ubuntu@ip-10-0-1-203:~$ sudo apt update Hit:1 http://us-east-1.ec2.archive.ubuntu.com/ubuntu xenial InRelease Hit:2 http://us-east-1.ec2.archive.ubuntu.com/ubuntu xenial-updates InRelease Hit:3 http://us-east-1.ec2.archive.ubuntu.com/ubuntu xenial-backports InRelease Err:4 https://apt.dockerproject.org/repo ubuntu-xenial InRelease Could not resolve host: apt.dockerproject.org Hit:5 http://security.ubuntu.com/ubuntu xenial-security InRelease Reading package lists... Done Building dependency tree Reading state information... Done 47 packages can be upgraded. Run 'apt list --upgradable' to see them. W: Failed to fetch https://apt.dockerproject.org/repo/dists/ubuntu-xenial/InRelease Could not resolve host: apt.dockerproject.org W: Some index files failed to download. They have been ignored, or old ones used instead.
Could someone point me to some instruction on what to do next? I went here https://hub.docker.com/r/openemr/openemr/
No instructions there.