Update control-plane nodes taint

The old taint 'node-role.kubernetes.io/master' has been deprecated since
v1.20 and removed since v1.25[1].

Starting from v1.28, the taint of 'node-role.kubernetes.io/master' does
not pass conformance.

[1] https://kubernetes.io/blog/2022/04/07/upcoming-changes-in-kubernetes-1-24/

node-role.kubernetes.io/master

Change-Id: I32616ea7f382601ecca9fce0a84da007e5471dfb

magnum/drivers/common/templates/kubernetes/fragments/calico-service-v3-21-x.sh

@@ -4400,7 +4400,7 @@ spec:
         # Mark the pod as a critical add-on for rescheduling.
         - key: CriticalAddonsOnly
           operator: Exists
-        - key: node-role.kubernetes.io/master
+        - key: node-role.kubernetes.io/control-plane
           effect: NoSchedule
       serviceAccountName: calico-kube-controllers
       priorityClassName: system-cluster-critical

magnum/drivers/common/templates/kubernetes/fragments/calico-service-v3-26-x.sh

@@ -4965,8 +4965,6 @@ spec:
         # Mark the pod as a critical add-on for rescheduling.
         - key: CriticalAddonsOnly
           operator: Exists
-        - key: node-role.kubernetes.io/master
-          effect: NoSchedule
         - key: node-role.kubernetes.io/control-plane
           effect: NoSchedule
       serviceAccountName: calico-kube-controllers

magnum/drivers/common/templates/kubernetes/fragments/configure-kubernetes-master.sh

@@ -454,7 +454,7 @@ if [ -f /etc/sysconfig/docker ] ; then
     sed -i -E 's/^OPTIONS=("|'"'"')/OPTIONS=\1'"${DOCKER_OPTIONS}"' /' /etc/sysconfig/docker
 fi
 
-KUBELET_ARGS="${KUBELET_ARGS} --register-with-taints=node-role.kubernetes.io/master=:NoSchedule"
+KUBELET_ARGS="${KUBELET_ARGS} --register-with-taints=node-role.kubernetes.io/control-plane=:NoSchedule"
 KUBELET_ARGS="${KUBELET_ARGS} --node-labels=magnum.openstack.org/role=${NODEGROUP_ROLE}"
 KUBELET_ARGS="${KUBELET_ARGS} --node-labels=magnum.openstack.org/nodegroup=${NODEGROUP_NAME}"
 

magnum/drivers/common/templates/kubernetes/fragments/enable-auto-healing.sh

@@ -208,7 +208,7 @@ spec:
       namespace: kube-system
     spec:
       nodeSelector:
-        node-role.kubernetes.io/master: ""
+        node-role.kubernetes.io/control-plane: ""
       hostNetwork: true
       tolerations:
         - effect: NoSchedule
@@ -220,7 +220,7 @@ spec:
         - key: node.cloudprovider.kubernetes.io/uninitialized
           value: "true"
           effect: NoSchedule
-        - key: node-role.kubernetes.io/master
+        - key: node-role.kubernetes.io/control-plane
           effect: NoSchedule
       containers:
       # You'll want to change these labels and conditions to suit your deployment.
@@ -336,7 +336,7 @@ spec:
         - effect: NoExecute
           operator: Exists
       nodeSelector:
-        node-role.kubernetes.io/master: ""
+        node-role.kubernetes.io/control-plane: ""
       containers:
         - name: magnum-auto-healer
           image: ${image_prefix}/magnum-auto-healer:${MAGNUM_AUTO_HEALER_TAG}

magnum/drivers/common/templates/kubernetes/fragments/enable-auto-scaling.sh

@@ -118,7 +118,7 @@ spec:
         app: cluster-autoscaler
     spec:
       nodeSelector:
-        node-role.kubernetes.io/master: ""
+        node-role.kubernetes.io/control-plane: ""
       securityContext:
         runAsUser: 1001
       tolerations:
@@ -131,7 +131,7 @@ spec:
         - key: node.cloudprovider.kubernetes.io/uninitialized
           value: "true"
           effect: NoSchedule
-        - key: node-role.kubernetes.io/master
+        - key: node-role.kubernetes.io/control-plane
           effect: NoSchedule
       serviceAccountName: cluster-autoscaler-account
       containers:

magnum/drivers/common/templates/kubernetes/fragments/enable-cinder-csi.sh

@@ -230,7 +230,7 @@ spec:
         - key: CriticalAddonsOnly
           operator: Exists
       nodeSelector:
-        node-role.kubernetes.io/master: ""
+        node-role.kubernetes.io/control-plane: ""
       containers:
         - name: csi-attacher
           image: ${CONTAINER_INFRA_PREFIX:-k8s.gcr.io/sig-storage/}csi-attacher:${CSI_ATTACHER_TAG}

magnum/drivers/common/templates/kubernetes/fragments/enable-ingress-octavia.sh

@@ -81,7 +81,7 @@ spec:
         - effect: NoExecute
           operator: Exists
       nodeSelector:
-        node-role.kubernetes.io/master: "" # octavia-ingress-controller needs to access /etc/kubernetes folder.
+        node-role.kubernetes.io/control-plane: "" # octavia-ingress-controller needs to access /etc/kubernetes folder.
       containers:
         - name: octavia-ingress-controller
           image: ${oic_image}

magnum/drivers/common/templates/kubernetes/fragments/enable-keystone-auth.sh

@@ -117,7 +117,7 @@ spec:
         - effect: NoExecute
           operator: Exists
       nodeSelector:
-        node-role.kubernetes.io/master: ""
+        node-role.kubernetes.io/control-plane: ""
       containers:
         - name: k8s-keystone-auth
           image: ${_prefix}k8s-keystone-auth:${K8S_KEYSTONE_AUTH_TAG}

magnum/drivers/common/templates/kubernetes/fragments/enable-services-master.sh

@@ -29,9 +29,9 @@ done
 # Label self as master
 until  [ "ok" = "$(kubectl get --raw='/healthz')" ] && \
     kubectl patch node ${INSTANCE_NAME} \
-        --patch '{"metadata": {"labels": {"node-role.kubernetes.io/master": ""}}}'
+        --patch '{"metadata": {"labels": {"node-role.kubernetes.io/control-plane": ""}}}'
 do
-    echo "Trying to label master node with node-role.kubernetes.io/master=\"\""
+    echo "Trying to label master node with node-role.kubernetes.io/control-plane=\"\""
     sleep 5s
 done
 

magnum/drivers/common/templates/kubernetes/fragments/kube-apiserver-to-kubelet-role.sh

@@ -336,7 +336,7 @@ spec:
       # this is to restrict CCM to only run on master nodes
       # the node selector may vary depending on your cluster setup
       nodeSelector:
-        node-role.kubernetes.io/master: ""
+        node-role.kubernetes.io/control-plane: ""
 EOF
     }
 

magnum/drivers/common/templates/kubernetes/fragments/kube-dashboard-service.sh

@@ -249,7 +249,7 @@ spec:
         "kubernetes.io/os": linux
       # Comment the following tolerations if Dashboard must not be deployed on master
       tolerations:
-        - key: node-role.kubernetes.io/master
+        - key: node-role.kubernetes.io/control-plane
           effect: NoSchedule
 
 ---
@@ -319,7 +319,7 @@ spec:
         "kubernetes.io/os": linux
       # Comment the following tolerations if Dashboard must not be deployed on master
       tolerations:
-        - key: node-role.kubernetes.io/master
+        - key: node-role.kubernetes.io/control-plane
           effect: NoSchedule
       volumes:
         - name: tmp-volume

magnum/drivers/common/templates/kubernetes/fragments/upgrade-kubernetes.sh

@@ -16,8 +16,8 @@ new_ostree_commit="$ostree_commit_input"
 function drain {
     # If there is only one master and this is the master node, skip the drain, just cordon it
     # If there is only one worker and this is the worker node, skip the drain, just cordon it
-    all_masters=$(${ssh_cmd} ${kubecontrol} get nodes --selector=node-role.kubernetes.io/master= -o name)
+    all_masters=$(${ssh_cmd} ${kubecontrol} get nodes --selector=node-role.kubernetes.io/control-plane= -o name)
-    all_workers=$(${ssh_cmd} ${kubecontrol} get nodes --selector=node-role.kubernetes.io/master!= -o name)
+    all_workers=$(${ssh_cmd} ${kubecontrol} get nodes --selector=node-role.kubernetes.io/control-plane!= -o name)
     if [ "node/${INSTANCE_NAME}" != "${all_masters}" ] && [ "node/${INSTANCE_NAME}" != "${all_workers}" ]; then
         ${ssh_cmd} ${kubecontrol} drain ${INSTANCE_NAME} --ignore-daemonsets --delete-local-data --force
     else

releasenotes/notes/control-plane-taint-c6194f968f0817e8.yaml

@@ -0,0 +1,14 @@
+---
+features:
+  - |
+    Adds initial support for Kubernetes v1.28
+upgrade:
+  - |
+    The taint for control plane nodes have been updated from
+    'node-role.kubernetes.io/master' to
+    'node-role.kubernetes.io/control-plane', in line with upstream. Starting
+    from v1.28, the old taint no longer passes conformance.
+    New clusters from existing cluster templates will have this change.
+    Existing clusters are not affected.
+    This will be a breaking change for Kubernetes <v1.20, which is EOL and not
+    supported in this version of Magnum.

tools/sync/cinder-csi

@@ -53,7 +53,7 @@ manifests = manifests.replace(
         - key: CriticalAddonsOnly
           operator: Exists
       nodeSelector:
-        node-role.kubernetes.io/master: ""
+        node-role.kubernetes.io/control-plane: ""
 """).replace(
 """
             - --csi-address=/csi/csi.sock