I referred to https://hub.docker.com/r/digibib/koha
isnt the database part of the docker image? The Ubuntu 20.04 is a VM, it can connect to the internet and has mysql installed.
Code:
sudo docker image ls|grep kohadigibib/koha latest 7031f17fd22e 20 hours ago 1GB
uma@ubuntu:~$ sudo docker run 7031f17fd22e
Global config ... creating dirs and permission for koha config and zebra index
Setting up supervisord ...
Mysql server setup ...
Usage: ping [-aAbBdDfhLnOqrRUvV64] [-c count] [-i interval] [-I interface]
[-m mark] [-M pmtudisc_option] [-l preload] [-p pattern] [-Q tos]
[-s packetsize] [-S sndbuf] [-t ttl] [-T timestamp_option]
[-w deadline] [-W timeout] [hop1 ...] destination
Usage: ping -6 [-aAbBdDfhLnOqrRUvV] [-c count] [-i interval] [-I interface]
[-l preload] [-m mark] [-M pmtudisc_option]
[-N nodeinfo_option] [-p pattern] [-Q tclass] [-s packetsize]
[-S sndbuf] [-t ttl] [-T timestamp_option] [-w deadline]
[-W timeout] destination
ERROR: Could not connect to remote dbisnt the database part of the docker image? The Ubuntu 20.04 is a VM, it can connect to the internet and has mysql installed.