Cleanup: Ubuntu 20.04 tests (#12301)

* Test: molecule replace ubuntu2004 with ubuntu2204 ubuntu2404

cri-dockerd, adduser and bastion-ssh-config can't run ubuntu2404, maybe needs to check login.

"System is booting up. Unprivileged users are not permitted to log in yet. Please come back later. For technical details, see pam_nologin(8)."

Signed-off-by: ChengHao Yang
<17496418+tico88612@users.noreply.github.com>

* Test: replace ubuntu-2004 with ubuntu-2404

All ubuntu-2004 tests are removed.

Signed-off-by: ChengHao Yang <17496418+tico88612@users.noreply.github.com>

* Docs: update ci.md

Signed-off-by: ChengHao Yang <17496418+tico88612@users.noreply.github.com>

* Docs: update README.md

Remove Ubuntu 20.04 support

Signed-off-by: ChengHao Yang <17496418+tico88612@users.noreply.github.com>

---------

Signed-off-by: ChengHao Yang
Signed-off-by: ChengHao Yang <17496418+tico88612@users.noreply.github.com>

tests/files/ubuntu20-all-in-one-docker.yml

@@ -1,16 +0,0 @@
----
-# Instance settings
-cloud_image: ubuntu-2004
-mode: all-in-one
-
-# Kubespray settings
-auto_renew_certificates: true
-
-# Currently ipvs not available on KVM: https://packages.ubuntu.com/search?suite=focal&arch=amd64&mode=exactfilename&searchon=contents&keywords=ip_vs_sh.ko
-kube_proxy_mode: iptables
-enable_nodelocaldns: false
-
-# Use docker
-container_manager: docker
-etcd_deployment_type: docker
-resolvconf_mode: docker_dns

tests/files/ubuntu20-calico-all-in-one.yml

@@ -1,11 +0,0 @@
----
-# Instance settings
-cloud_image: ubuntu-2004
-mode: all-in-one
-
-# Kubespray settings
-auto_renew_certificates: true
-
-# Currently ipvs not available on KVM: https://packages.ubuntu.com/search?suite=focal&arch=amd64&mode=exactfilename&searchon=contents&keywords=ip_vs_sh.ko
-kube_proxy_mode: iptables
-enable_nodelocaldns: false

tests/files/ubuntu20-flannel-collection.yml

@@ -1,8 +0,0 @@
----
-cloud_image: ubuntu-2004
-cluster_layout:
-  - node_groups: ['kube_control_plane', 'etcd', 'kube_node']
-  - node_groups: ['kube_control_plane', 'etcd', 'kube_node']
-  - node_groups: ['etcd', 'kube_node']
-
-kube_network_plugin: flannel

tests/files/ubuntu20-flannel.yml

@@ -1 +0,0 @@
-ubuntu20-flannel-collection.yml

tests/files/ubuntu20-kube-router-sep.yml

@@ -1,7 +0,0 @@
----
-cloud_image: ubuntu-2004
-cluster_layout:
-  - node_groups: ['kube_control_plane', 'etcd', 'kube_node']
-  - node_groups: ['kube_node']
-
-kube_network_plugin: "kube-router"

tests/files/ubuntu20-kube-router-svc-proxy.yml

@@ -1,10 +0,0 @@
----
-cloud_image: ubuntu-2004
-cluster_layout:
-  - node_groups: ['kube_control_plane', 'etcd', 'kube_node']
-  - node_groups: ['kube_control_plane', 'etcd', 'kube_node']
-  - node_groups: ['etcd', 'kube_node']
-
-kube_network_plugin: "kube-router"
-
-kube_router_run_service_proxy: true

tests/files/ubuntu24-calico-all-in-one-hardening.yml

@@ -1,6 +1,6 @@
 ---
 # Instance settings
-cloud_image: ubuntu-2004
+cloud_image: ubuntu-2404
 mode: all-in-one
 
 # Kubespray settings
@@ -12,7 +12,7 @@ enable_nodelocaldns: false
 
 # The followings are for hardening
 ## kube-apiserver
-authorization_modes: ['Node', 'RBAC']
+authorization_modes: ["Node", "RBAC"]
 kube_apiserver_request_timeout: 120s
 kube_apiserver_service_account_lookup: true
 

tests/files/ubuntu24-calico-etcd-kubeadm-upgrade-ha.yml

@@ -1,6 +1,6 @@
 ---
 # Instance settings
-cloud_image: ubuntu-2004
+cloud_image: ubuntu-2404
 mode: ha
 
 # use the kubeadm etcd setting to test the upgrade

tests/files/ubuntu24-calico-etcd-kubeadm.yml

@@ -1,6 +1,6 @@
 ---
 # Instance settings
-cloud_image: ubuntu-2004
+cloud_image: ubuntu-2404
 
 # use the kubeadm etcd setting to test the upgrade
 etcd_deployment_type: kubeadm

tests/files/ubuntu24-calico-ha-recover-noquorum.yml

@@ -1,4 +1,4 @@
 ---
 # Instance settings
-cloud_image: ubuntu-2004
+cloud_image: ubuntu-2404
 mode: ha-recover-noquorum

tests/files/ubuntu24-calico-ha-recover.yml

@@ -1,4 +1,4 @@
 ---
 # Instance settings
-cloud_image: ubuntu-2004
+cloud_image: ubuntu-2404
 mode: ha-recover

tests/files/ubuntu24-calico-ha-wireguard.yml

@@ -1,6 +1,6 @@
 ---
 # Instance settings
-cloud_image: ubuntu-2004
+cloud_image: ubuntu-2404
 mode: ha
 
 # Kubespray settings

tests/files/ubuntu24-cilium-sep.yml

@@ -1,6 +1,6 @@
 ---
 # Instance settings
-cloud_image: ubuntu-2004
+cloud_image: ubuntu-2404
 mode: separate
 
 # Kubespray settings

tests/files/ubuntu24-flannel-collection.yml

@@ -0,0 +1,8 @@
+---
+cloud_image: ubuntu-2404
+cluster_layout:
+  - node_groups: ["kube_control_plane", "etcd", "kube_node"]
+  - node_groups: ["kube_control_plane", "etcd", "kube_node"]
+  - node_groups: ["etcd", "kube_node"]
+
+kube_network_plugin: flannel

tests/files/ubuntu24-flannel-ha-once.yml

@@ -1,6 +1,6 @@
 ---
 # Instance settings
-cloud_image: ubuntu-2004
+cloud_image: ubuntu-2404
 mode: ha
 
 # Kubespray settings

tests/files/ubuntu24-flannel-ha.yml

@@ -1,6 +1,6 @@
 ---
 # Instance settings
-cloud_image: ubuntu-2004
+cloud_image: ubuntu-2404
 mode: ha
 
 # Kubespray settings

tests/files/ubuntu24-flannel.yml

@@ -0,0 +1,8 @@
+---
+cloud_image: ubuntu-2404
+cluster_layout:
+  - node_groups: ["kube_control_plane", "etcd", "kube_node"]
+  - node_groups: ["kube_control_plane", "etcd", "kube_node"]
+  - node_groups: ["etcd", "kube_node"]
+
+kube_network_plugin: flannel

tests/files/ubuntu24-kube-router-sep.yml

@@ -0,0 +1,7 @@
+---
+cloud_image: ubuntu-2404
+cluster_layout:
+  - node_groups: ["kube_control_plane", "etcd", "kube_node"]
+  - node_groups: ["kube_node"]
+
+kube_network_plugin: "kube-router"

tests/files/ubuntu24-kube-router-svc-proxy.yml

@@ -0,0 +1,10 @@
+---
+cloud_image: ubuntu-2404
+cluster_layout:
+  - node_groups: ["kube_control_plane", "etcd", "kube_node"]
+  - node_groups: ["kube_control_plane", "etcd", "kube_node"]
+  - node_groups: ["etcd", "kube_node"]
+
+kube_network_plugin: "kube-router"
+
+kube_router_run_service_proxy: true