`postsync` events are triggered after each release is applied to the cluster in `helmfile sync` or `helmfile apply`.
This should be a best hook to notify only after each sync failed or succeeded. This can be used for running operations like patching K8s resources managed by helm, but that should be the last-resort. Maybe you should fork/update the chart, or submit a feature request to add `replicated/ship` integration to `helmfile` in that case :)
Resolves#599