update kube-version-min-required to v1.27 (#10817)

README.md

@@ -202,7 +202,7 @@ Note: Upstart/SysV init based OS types are not supported.
 
 ## Requirements
 
-- **Minimum required version of Kubernetes is v1.26**
+- **Minimum required version of Kubernetes is v1.27**
 - **Ansible v2.14+, Jinja 2.11+ and python-netaddr is installed on the machine that will run Ansible commands**
 - The target servers must have **access to the Internet** in order to pull docker images. Otherwise, additional configuration is required (See [Offline Environment](docs/offline-environment.md))
 - The target servers are configured to allow **IPv4 forwarding**.

roles/kubespray-defaults/defaults/main/download.yml

@@ -137,21 +137,18 @@ etcd_supported_versions:
   v1.29: "v3.5.10"
   v1.28: "v3.5.10"
   v1.27: "v3.5.10"
-  v1.26: "v3.5.10"
 etcd_version: "{{ etcd_supported_versions[kube_major_version] }}"
 
 crictl_supported_versions:
   v1.29: "v1.29.0"
   v1.28: "v1.28.0"
   v1.27: "v1.27.1"
-  v1.26: "v1.26.1"
 crictl_version: "{{ crictl_supported_versions[kube_major_version] }}"
 
 crio_supported_versions:
   v1.29: v1.29.1
   v1.28: v1.28.1
   v1.27: v1.27.1
-  v1.26: v1.26.4
 crio_version: "{{ crio_supported_versions[kube_major_version] }}"
 
 yq_version: "v4.35.2"
@@ -342,7 +339,6 @@ snapshot_controller_supported_versions:
   v1.29: "v6.3.3"
   v1.28: "v4.2.1"
   v1.27: "v4.2.1"
-  v1.26: "v4.2.1"
 snapshot_controller_image_repo: "{{ kube_image_repo }}/sig-storage/snapshot-controller"
 snapshot_controller_image_tag: "{{ snapshot_controller_supported_versions[kube_major_version] }}"
 

roles/kubespray-defaults/defaults/main/main.yml

@@ -19,7 +19,7 @@ kubelet_swap_behavior: LimitedSwap
 kube_version: v1.28.6
 
 ## The minimum version working
-kube_version_min_required: v1.26.0
+kube_version_min_required: v1.27.0
 
 ## Kube Proxy mode One of ['iptables', 'ipvs']
 kube_proxy_mode: ipvs