Control: tags -1 + pending > I think it's reasonable to add a check in > /usr/local/sbin/inet6-ifup-helper for future revisions of the stretch > AMI to exit successfully if IPv6 is disabled on $IFACE.
We recently merged some changes that will do this on newly launched instances. It won't help with your existing instances, but once we generate images containing the changes from the following merge requests, setting disable_ipv6 on an interface will be handled correctly. https://salsa.debian.org/cloud-team/debian-cloud-images/-/merge_requests/206 https://salsa.debian.org/cloud-team/debian-cloud-images/-/merge_requests/207 We haven't yet generated AMIs based on these changes, so I'm leaving this open and tagged pending for now.