* -viper-config can be used to set also the options defined by command line flags
   * the default config file is "e2e.yaml/toml/json/..." and the test starts when no such config is found (as before) but if -viper-config is used, the config file must exist
   * -viper-config can be used to select a file with full path, with or without file suffix

*...

- Kubeadm: fix an issue with the kube-proxy container env. variables ([#84888](https://github.com/kubernetes/kubernetes/pull/84888), [@neolit123](https://github.com/neolit123))
- Utilize diagnostics tool to dump GKE windows test logs ([#83517](https://github.com/kubernetes/kubernetes/pull/83517), [@YangLu1031](https://github.com/YangLu1031))

upgrading, and deleting clusters.

For the 1.8 release, SIG Cluster Lifecycle continued to focus on expanding the
capabilities of kubeadm, which is both a user-facing tool to manage clusters
and a building block for higher-level provisioning systems. Starting
with the 1.8 release, kubeadm supports a new upgrade command and includes alpha
support for self hosting the cluster control plane.

- The following deprecated metrics are removed, please convert to the corresponding metrics:

- github.com/opencontainers/runc: [v1.0.1 → v1.0.2](https://github.com/opencontainers/runc/compare/v1.0.1...v1.0.2)
- github.com/pelletier/go-toml: [v1.2.0 → v1.9.3](https://github.com/pelletier/go-toml/compare/v1.2.0...v1.9.3)
- github.com/prometheus/common: [v0.26.0 → v0.28.0](https://github.com/prometheus/common/compare/v0.26.0...v0.28.0)

- github.com/mitchellh/go-homedir: [v1.1.0](https://github.com/mitchellh/go-homedir/tree/v1.1.0)
- github.com/naoina/go-stringutil: [v0.1.0](https://github.com/naoina/go-stringutil/tree/v0.1.0)
- github.com/naoina/toml: [v0.1.1](https://github.com/naoina/toml/tree/v0.1.1)
- github.com/rogpeppe/go-internal: [v1.3.0](https://github.com/rogpeppe/go-internal/tree/v1.3.0)
- github.com/thecodeteam/goscaleio: [v0.1.0](https://github.com/thecodeteam/goscaleio/tree/v0.1.0)

- github.com/mholt/certmagic: [6a42ef9](https://github.com/mholt/certmagic/tree/6a42ef9)
- github.com/naoina/go-stringutil: [v0.1.0](https://github.com/naoina/go-stringutil/tree/v0.1.0)
- github.com/naoina/toml: [v0.1.1](https://github.com/naoina/toml/tree/v0.1.1)
- github.com/robfig/cron: [v1.1.0](https://github.com/robfig/cron/tree/v1.1.0)
- github.com/satori/go.uuid: [v1.2.0](https://github.com/satori/go.uuid/tree/v1.2.0)

- github.com/mitchellh/iochan: [v1.0.0](https://github.com/mitchellh/iochan/tree/v1.0.0)
- github.com/pascaldekloe/goe: [57f6aae](https://github.com/pascaldekloe/goe/tree/57f6aae)
- github.com/pelletier/go-toml: [v1.9.3](https://github.com/pelletier/go-toml/tree/v1.9.3)
- github.com/posener/complete: [v1.1.1](https://github.com/posener/complete/tree/v1.1.1)
- github.com/ryanuber/columnize: [9b3edd6](https://github.com/ryanuber/columnize/tree/9b3edd6)

  - A namespaced object with an ownerReference referencing a uid of a namespaced kind which does not exist in the same namespace is now consistently treated...