Improve first_kube_control_plane variable management to avoid installation failures due to variable overlapping (#8388)

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

@@ -3,7 +3,7 @@
   set_fact:
     kubeadm_discovery_address: >-
       {%- if "127.0.0.1" in kube_apiserver_endpoint or "localhost" in kube_apiserver_endpoint -%}
-      {{ first_kube_control_plane }}:{{ kube_apiserver_port }}
+      {{ first_kube_control_plane_address }}:{{ kube_apiserver_port }}
       {%- else -%}
       {{ kube_apiserver_endpoint | regex_replace('https://', '') }}
       {%- endif %}

roles/kubernetes/kubeadm/tasks/main.yml

@@ -3,7 +3,7 @@
   set_fact:
     kubeadm_discovery_address: >-
       {%- if "127.0.0.1" in kube_apiserver_endpoint or "localhost" in kube_apiserver_endpoint -%}
-      {{ first_kube_control_plane }}:{{ kube_apiserver_port }}
+      {{ first_kube_control_plane_address }}:{{ kube_apiserver_port }}
       {%- else -%}
       {{ kube_apiserver_endpoint | replace("https://", "") }}
       {%- endif %}

roles/kubespray-defaults/defaults/main.yaml

@@ -500,7 +500,7 @@ is_kube_master: "{{ inventory_hostname in groups['kube_control_plane'] }}"
 kube_apiserver_count: "{{ groups['kube_control_plane'] | length }}"
 kube_apiserver_address: "{{ ip | default(fallback_ips[inventory_hostname]) }}"
 kube_apiserver_access_address: "{{ access_ip | default(kube_apiserver_address) }}"
-first_kube_control_plane: "{{ hostvars[groups['kube_control_plane'][0]]['access_ip'] | default(hostvars[groups['kube_control_plane'][0]]['ip'] | default(fallback_ips[groups['kube_control_plane'][0]])) }}"
+first_kube_control_plane_address: "{{ hostvars[groups['kube_control_plane'][0]]['access_ip'] | default(hostvars[groups['kube_control_plane'][0]]['ip'] | default(fallback_ips[groups['kube_control_plane'][0]])) }}"
 loadbalancer_apiserver_localhost: "{{ loadbalancer_apiserver is not defined }}"
 loadbalancer_apiserver_type: "nginx"
 # applied if only external loadbalancer_apiserver is defined, otherwise ignored
@@ -511,7 +511,7 @@ kube_apiserver_global_endpoint: |-
   {%- elif use_localhost_as_kubeapi_loadbalancer|default(False)|bool -%}
       https://127.0.0.1:{{ kube_apiserver_port }}
   {%- else -%}
-      https://{{ first_kube_control_plane }}:{{ kube_apiserver_port }}
+      https://{{ first_kube_control_plane_address }}:{{ kube_apiserver_port }}
   {%- endif %}
 kube_apiserver_endpoint: |-
   {% if loadbalancer_apiserver is defined -%}
@@ -521,7 +521,7 @@ kube_apiserver_endpoint: |-
   {%- elif is_kube_master -%}
       https://{{ kube_apiserver_bind_address | regex_replace('0\.0\.0\.0','127.0.0.1') }}:{{ kube_apiserver_port }}
   {%- else -%}
-      https://{{ first_kube_control_plane }}:{{ kube_apiserver_port }}
+      https://{{ first_kube_control_plane_address }}:{{ kube_apiserver_port }}
   {%- endif %}
 kube_apiserver_insecure_endpoint: >-
   http://{{ kube_apiserver_insecure_bind_address | regex_replace('0\.0\.0\.0','127.0.0.1') }}:{{ kube_apiserver_insecure_port }}

roles/network_plugin/calico/templates/kubernetes-services-endpoint.yml.j2

@@ -13,7 +13,7 @@ data:
   KUBERNETES_SERVICE_HOST: "127.0.0.1"
   KUBERNETES_SERVICE_PORT: "{{ kube_apiserver_port }}"
 {%- else %}
-  KUBERNETES_SERVICE_HOST: "{{ first_kube_control_plane }}"
+  KUBERNETES_SERVICE_HOST: "{{ first_kube_control_plane_address }}"
   KUBERNETES_SERVICE_PORT: "{{ kube_apiserver_port }}"
 {%- endif %}
 {% endif %}