This docker image connects to ipv64 using curl to update your DDNS IP, just use this compose file:
services:
ipv64-updater:
container_name: ipv64-updater
image: zoeyvid/ipv64-updater
restart: always
network_mode: host # you can use bridge if it supports IPv6
environment:
- "TZ=Europe/Berlin" # your timezone
- "DUK=r23jLIKr6IQwrlU6Wcv4ZxrJePxbd57t" # your Domain Update Token (invalid example)
# - "UI=5m" # interval to update DDNS
# - "IPv4=true" # enable/disable IPv4
# - "IPv6=true" # enable/disable IPv6you need to decide if you want to enable IPv4/IPv6 and you need to change DUK.