I need to update my /etc/services file with adding some extra line to it.
But I could not find any straight answers to this.
In k8s there is an option to add hostAliases for /etc/hosts by editing deployment object but no options to update /etc/services
As an option, I could mount my own file but this is a too brutal way to do this IMO.
Thanks in advance!
Replacing your /etc/services with a mounted ConfigMap would have the merit of being able to make updates while your Pods are running.
If you don't want to use that technique, you can use a PostStart Lifecycle Hook to add lines whenever your Pods start or restart:
lifecycle:
postStart:
exec:
command: ["/bin/sh", "-c", "echo '[new-line]' >> /etc/services"]