There is a PR open here Add readinessGates and lifecycle properties by romainDavaze · Pull Request #567 · traefik/traefik-helm-chart · GitHub which we need to be merged in (with a couple of changes as mentioned by main contibutors) .
Since the feature is critical for ALB integration without downtime, can someone please follow this up? I can also make a PR with only the necessary code in there (just the lifecycle hooks).