v1.22.4

• Kubernetes v1.22.4
• Update CoreDNS from v1.8.4 to v1.8.6
• Update Calico from v3.20.2 to v3.21.0
• Update flannel from v0.14.0 to v0.15.1

Google

• Allow use of Terraform provider google v4.0+

Flatcar Linux

• Change Kubelet mounts for cgroups v2 (#1064)
• Update cgroup driver from cgroupfs to systemd (Flatcar Linux changed default) (#1064)

Addons

• Update Prometheus from v2.30.3 to v2.31.1
• Update node-exporter from v1.2.2 to v1.3.0
• Update kube-state-metrics from v2.2.3 to v2.2.4
• Update Grafana from v8.2.1 to v8.2.4
• Update nginx-ingress from v1.0.4 to v1.0.5

v1.22.3

• Kubernetes v1.22.3
• Update etcd from v3.5.0 to v3.5.1
• Update Cilium from v1.10.4 to v1.10.5
• Update Calico from v3.20.1 to v3.20.2
  • Use Calico's iptables legacy vs nft auto-detection
• Update flannel from v0.13.0 to v0.14.0
• Change enable_aggregation default to true (#279)

Bare-Metal

• Require Terraform provider poseidon/matchbox v0.5+ (#1048)

Addons

• Update nginx-ingress from v1.0.0 to v1.0.4
• Update Prometheus from v2.29.2 to v2.30.3
• Update kube-state-metrics from v2.2.0 to v2.2.3
• Update Grafana from v8.1.2 to v8.2.1

v1.22.2

v1.22.2

• Kubernetes v1.22.2
• Update Cilium from v1.10.3 to v1.10.4
• Update Calico from v3.20.0 to v3.20.1
• Fix access to ClusterIP services with Cilium (#276)

Fedora CoreOS

• Use Fedora CoreOS ARM64 AMIs (#1038)
  • Poseidon-built AMIs will be deleted after October 1, 2021 (action required)

Addons

• Update Prometheus from v2.29.1 to v2.29.2
• Update kube-state-metrics from v2.1.1 to v2.2.0

v1.22.1

• Kubernetes v1.22.1
• Update Calico from v3.19.1 to v3.20.0

Addons

• Update nginx-ingress from v1.0.0-beta.1 to v1.0.0
• Update Prometheus from v2.28.1 to v2.29.1
• Update Grafana from v8.1.1 to v8.1.2

v1.22.0

• Kubernetes v1.22.0
• Update etcd from v3.4.16 to v3.5.0
• Switch kube-controller-manager and kube-scheduler to use secure port only
  • Update Prometheus config to discover endpoints and use a bearer token to scrape

Fedora CoreOS

• Add Cilium cgroups v2 support on Fedora CoreOS
• Update Butane Config version from v1.2.0 to v1.4.0
  • Rename Fedora CoreOS Config to Butane Config
  • Require any snippets customizations to update to v1.4.0

Addons

• Update nginx-ingress from v0.47.0 to v1.0.0-beta.1
• Update node-exporter from v1.2.0 to v1.2.2
• Update kube-state-metrics from v2.1.0 to v2.1.1
• Update Grafana from v8.0.6 to v8.1.1

v1.21.3

• Kubernetes v1.21.3
• Update Cilium from v1.10.1 to v1.10.3
• Require poseidon/ct Terraform provider v0.9+ (notes)

AWS

• Change default disk type from gp2 to gp3 (#1012)

Addons

• Update Prometheus from v2.28.0 to v2.28.1
• Update node-exporter from v1.1.2 to v1.2.0
• Update Grafana from v8.0.3 to v8.0.6

v1.21.2

• Kubernetes v1.21.2
• Add Terraform v1.0.x support (#974)
  • Continue to support Terraform v0.13.x, v0.14.4+, and v0.15.x
• Update CoreDNS from v1.8.0 to v1.8.4
• Update Cilium from v1.9.6 to v1.10.1
• Update Calico from v3.19.0 to v3.19.1

Fedora CoreOS

AWS

• Extend experimental Fedora CoreOS arm64 support with Cilium
  • CNI provider may now be flannel or cilium (new)

Bare-Metal

• Workaround systemd path unit issue fedora-coreos-tracker/#861

DigitalOcean

• Workaround systemd path unit issue fedora-coreos-tracker/#861

Known Issues

• Cilium with recent Fedora CoreOS will have networking issues (fedora-coreos#881)

Addons

• Update kube-state-metrics from v2.0.0 to v2.1.0
• Update Prometheus from v2.27.0 to v2.28.0
• Update Grafana from v7.5.6 to v8.0.3
• Update nginx-ingress from v0.46.0 to v0.47.0

v1.21.1

• Kubernetes v1.21.1
• Add Terraform v0.15.x support (#974)
  • Continue to support Terraform v0.13.x and v0.14.4+
• Update etcd from v3.4.15 to v3.4.16
• Update Cilium from v1.9.5 to v1.9.6
• Update Calico from v3.18.1 to v3.19.0

AWS

• Reduce the default disk_size from 40GB to 30GB (#983)

Azure

• Reduce the default disk_size from 40GB to 30GB (#983)

Google Cloud

• Reduce the default disk_size from 40GB to 30GB (#983)

Fedora CoreOS

• Update Kubelet mounts for cgroups v2 (#978)

Addons

• Update kube-state-metrics from v2.0.0-rc.1 to v2.0.0
• Update Prometheus from v2.25.2 to v2.27.0
• Update Grafana from v7.5.3 to v7.5.6
• Update nginx-ingress from v0.45.0 to v0.46.0

v1.21.0

v1.21.0

• Kubernetes v1.21.0
  • Enable tokencleaner controller (#969)
  • Enable kube-scheduler and kube-controller-manager separate authn/z kubeconfig
  • Change CNI config location from /etc/kubernetes/cni/net.d to /etc/cni/net.d (#965)
  • Change kube-controller-manager to mount /var/lib/kubelet/volumeplugins directly
  • Remove unused cloud-provider flags
• Update Fedora CoreOS Config version from v1.1.0 to v1.2.0 (#970)
  • Require poseidon/ct Terraform provider v0.8+ (notes)
  • Require any snippets customizations to update to v1.2.0

AWS

• Allow setting custom initial node taints on worker pools (#968)
  • Add node_taints variable to internal workers pool module to set initial node taints
  • Add daemonset_tolerations so kube-system DaemonSets can tolerate custom taints

Azure

• Allow setting custom initial node taints on worker pools (#968)
  • Add node_taints variable to internal workers pool module to set initial node taints
  • Add daemonset_tolerations so kube-system DaemonSets can tolerate custom taints
• Remove deprecated azurerm_lb_backend_address_pool field resource_group_name (#972)

Google Cloud

• Allow setting custom initial node taints on worker pools (#968)
  • Add node_taints variable to internal workers pool module to set initial node taints
  • Add daemonset_tolerations so kube-system DaemonSets can tolerate custom taints

Addons

• Update nginx-ingress from v0.44.0 to v0.45.0
• Update kube-state-metrics from v2.0.0-rc.0 to v2.0.0-rc.1
• Update Grafana from v7.4.5 to v7.5.3

v1.20.5

• Kubernetes v1.20.5
• Update etcd from v3.4.14 to v3.4.15
• Update Cilium from v1.9.4 to v1.9.5
• Update Calico from v3.17.3 to v3.18.1
• Update CoreDNS from v1.7.0 to v1.8.0
• Mark bootstrap token as sensitive in Terraform plans (#949)

Fedora CoreOS

AWS

• Set Kubelet provider-id (#951)

Flatcar Linux

AWS

• Set Kubelet provider-id (#951)
• Remove os_image option flatcar-edge (#943)

Azure

• Remove os_image option flatcar-edge (#943)

Bare-Metal

• Remove os_channel option flatcar-edge (#943)

Addons

• Update Prometheus from v2.25.0 to v2.25.2
• Update kube-state-metrics from v2.0.0-alpha.3 to v2.0.0-rc.0
  • Switch image from quay.io to k8s.gcr.io (#946)
• Update node-exporter from v1.1.1 to v1.1.2
• Update Grafana from v7.4.2 to v7.4.5