Cloud provider labels reach GA
Standard node and volume labels for instance type, region and zone are GA. Components honour both beta and GA labels; users should move pod specs and controllers to the GA names.
Kubernetes minor release · “Stability / The Chillest Release”
Kubernetes 1.17
The last release of 2019 focused on maturity: 14 of its 22 enhancements graduated to stable, led by GA cloud provider topology labels, alongside beta volume snapshots and beta CSI migration.
End of life
End of life since 13 Jan 2021 (5.8 years ago). No more patches upstream.
Released9 Dec 2019
Maintenance mode—
End of life13 Jan 2021
Latest patch1.17.1713 Jan 2021
Patch releases16
Support span13.2 months
What 1.17 brought
Volume snapshots
A standard Kubernetes API for taking point-in-time snapshots of persistent volumes and restoring from them moves to beta.
CSI migration infrastructure
The machinery that routes in-tree storage plugins like gce-pd and aws-ebs to their CSI drivers, transparently to workloads, moves to beta.
Kubelet heartbeats via Lease API
Frequent node heartbeats move to the lightweight Lease API, one of 14 enhancements that graduated to stable.
Scheduler places DaemonSet pods
Scheduling DaemonSet pods through kube-scheduler is now stable, as are taint-node-by-condition and watch bookmarks.
Summarised in our own words from the official “Kubernetes 1.17: Stability” announcement (22 tracked enhancements), © The Kubernetes Authors, CC BY 4.0.
APIs that stopped being served in 1.17
No API versions were removed in 1.17.
API versions deprecated in 1.17
Still served in 1.17, but the API server answers with a deprecation warning and a removal is scheduled.
| Kind | API version | Stops being served | Use instead |
|---|---|---|---|
| ClusterRole | rbac.authorization.k8s.io/v1beta1 | 1.22 | rbac.authorization.k8s.io/v1 |
| ClusterRoleBinding | rbac.authorization.k8s.io/v1beta1 | 1.22 | rbac.authorization.k8s.io/v1 |
| Role | rbac.authorization.k8s.io/v1beta1 | 1.22 | rbac.authorization.k8s.io/v1 |
| RoleBinding | rbac.authorization.k8s.io/v1beta1 | 1.22 | rbac.authorization.k8s.io/v1 |
| CSINode | storage.k8s.io/v1beta1 | 1.22 | storage.k8s.io/v1 |
Stable (GA) API kinds new in 1.17
CSINode storage.k8s.io/v1
Upgrading
Version skew with a 1.17 API server
- kubelet, kube-proxy: 1.15 to 1.17
- kube-controller-manager, scheduler: 1.16 to 1.17
- kubectl: 1.16 to 1.18
From the official version skew policy as it stands today.
One minor at a time
The API server must not skip minor versions.