Add kubeadm_join_phases_skip variable (#8067)

* Add kubeadm_join_phases_skip variable

* Update kubeadm_join_phases_skip comment

Co-authored-by: Cristian Calin <6627509+cristicalin@users.noreply.github.com>

* Add kubeadm_join_phases_skip_default variable to follow the same logic with kubeadm_init_phases_skip

Co-authored-by: Cristian Calin <6627509+cristicalin@users.noreply.github.com>

roles/kubernetes/control-plane/tasks/kubeadm-secondary.yml

@@ -57,6 +57,7 @@
     {{ bin_dir }}/kubeadm join
     --config {{ kube_config_dir }}/kubeadm-controlplane.yaml
     --ignore-preflight-errors=all
+    --skip-phases={{ kubeadm_join_phases_skip | join(',') }}
   environment:
     PATH: "{{ bin_dir }}:{{ ansible_env.PATH }}"
   register: kubeadm_join_control_plane

roles/kubernetes/kubeadm/tasks/main.yml

@@ -76,6 +76,7 @@
         {{ bin_dir }}/kubeadm join
         --config {{ kube_config_dir }}/kubeadm-client.conf
         --ignore-preflight-errors=DirAvailable--etc-kubernetes-manifests
+        --skip-phases={{ kubeadm_join_phases_skip | join(',') }}
       register: kubeadm_join
 
   rescue:
@@ -86,6 +87,7 @@
         {{ bin_dir }}/kubeadm join
         --config {{ kube_config_dir }}/kubeadm-client.conf
         --ignore-preflight-errors=all
+        --skip-phases={{ kubeadm_join_phases_skip | join(',') }}
       register: kubeadm_join
 
   always:

roles/kubespray-defaults/defaults/main.yaml

@@ -38,6 +38,12 @@ kubeadm_init_phases_skip: >-
   {{ kubeadm_init_phases_skip_default }}
   {%- endif -%}
 
+# List of kubeadm phases that should be skipped when joining a new node
+# You may need to set this to ['preflight'] for air-gaped deployments to avoid failing connectivity tests.
+kubeadm_join_phases_skip_default: []
+kubeadm_join_phases_skip: >-
+ {{ kubeadm_join_phases_skip_default }}
+
 # A string slice of values which specify the addresses to use for NodePorts.
 # Values may be valid IP blocks (e.g. 1.2.3.0/24, 1.2.3.4/32).
 # The default empty string slice ([]) means to use all local addresses.