v1.18.1

• Kubernetes v1.18.1
• Choose Fedora CoreOS or Flatcar Linux (action recommended)
  • Use a fedora-coreos module for Fedora CoreOS
  • Use a container-linux module with OS set to Flatcar Linux
• Update etcd from v3.4.5 to v3.4.7
• Change kube-proxy and calico or flannel to tolerate specific taints (#682)
  • Tolerate master and not-ready taints, rather than tolerating all taints
• Update flannel from v0.11.0 to v0.12.0 (#690)
• Fix bootstrap when networking mode flannel (non-default) is chosen (#689)
  • Regressed in v1.18.0 changes for Calico (#675)
• Rename Container Linux controller_clc_snippets to controller_snippets for consistency (#688)
• Rename Container Linux worker_clc_snippets to worker_snippets for consistency
• Rename Container Linux clc_snippets (bare-metal) to snippets for consistency
• Drop support for gitRepo volumes

Azure

• Fix Azure worker UDP outbound connections (#691)
  • Fix Azure worker clock sync timeouts

DigitalOcean

• Add support for Fedora CoreOS (#699)

Addons

• Refresh Prometheus rules/alerts and Grafana dashboards (#692)
• Update Grafana from v6.7.1 to v6.7.2