Minor Release 1.8.2

1.8.1 was only half-released - so here the changelog for all changes since 1.8.0.

No breaking changes, but you might want to double-check and review https://containrrr.dev/shoutrrr/v0.5/services/overview/ though to make sure you got your notify-url (new) or slack-hook-url (old) correct. See #368 for more detail.

Features and Improvements

• Release images to GHCR as well as DockerHub #439
• Support json logformatter

  This commit introduces a new flag '--log-format' that allows a user
  to configure json logging on the pods. If the log-format
  is not specified, the formatter will default to the existing
  text formatter.

Dependency Updates

• Alpine 3.15.0 #467
• dependabot: update docker images too
• various GH Actions
• github.com/prometheus/common 0.32.0 #453
• github.com/containrrr/shoutrrr 0.5.2 #450

Clean Up

• Remove notification/slack package #368

Helm Chart

• add missing prefer-no-schedule-taint
• add rebott-sentinel-command
• correct indent #447
• add reboot-delay
• add alert-firing-only

Kubernetes Version Compatibility

The daemon image contains a 1.21.x k8s.io/{client-go,kubectl} for the purposes of maintaining the lock and draining worker nodes. Kubernetes aims to provide forwards & backwards compatibility of one minor version between client and server, so this should work on 1.20.x, 1.21.x and 1.22.x

Thanks a lot to everyone who contributed to kured since 1.8.0. Commits from @MattJeanes @amorey @atighineanu @ckotzbauer @dholbach Daniel Kvist @jackfrancis @evrardjp