Work on add server to cluster

tasks/install_server.yml

@@ -67,7 +67,7 @@
   shell: kubeadm version | sed -e 's/.* Minor:"\([0-9]*\)".*/\1/'
   register: kubeadm_version_minor
 
-- name: Deploy kubeadm config
+- name: Deploy initial kubeadm config
   template:
     src: kubeadmin-config.yaml.j2
     dest: /root/kubeadmin-config.yaml
@@ -94,10 +94,41 @@
     - groups['KubernetesMasterConfigured'] is not defined
     - groups['KubernetesMasters'][0] == ansible_hostname
 
-- name: Extend Master services on unconfigured hosts
-  include_tasks: "add_master.yml"
+- name: Test if server node already included
+  command: kubectl get nodes {{ ansible_hostname | lower }}
+  delegate_to: "{{ groups['KubernetesMasterConfigured'][0] }}"
+  register: server_enrolled
+  changed_when: False
+  ignore_errors: yes
+
+- name: Deploy kubeadm config
+  template:
+    src: kubeadmin-config.yaml.j2
+    dest: /root/kubeadmin-config.yaml
+    owner: root
+    group: root
+    mode: 600
   when:
-    - groups['KubernetesMaster'] | length > 1
+    - not groups['KubernetesMasters'][0] == ansible_hostname
+    - kubeadm_version_major.rc == 1
+    - kubeadm_version_minor.rc > 15
+    - server_enrolled.rc == 1
+
+# Retreive token and hash to join from master
+
+- name: Join '{{ ansible_hostname }}' to Kubernetes cluster
+  command: kubeadm init --config=kubeadm-config.yaml
+  when:
+    - groups['KubernetesMasterConfigured'] is not defined
+    - groups['KubernetesMasters'][0] == ansible_hostname
+    - kubeadm_version_major.rc == 1
+    - kubeadm_version_minor.rc > 15
+    - server_enrolled.rc == 1
+
+#- name: Extend Master services on unconfigured hosts
+#  include_tasks: "add_master.yml"
+#  when:
+#    - groups['KubernetesMaster'] | length > 1
 
 - name: Check if a node is still tainted
   command: kubectl get nodes '{{ ansible_host }}' -o jsonpath='{.spec.taints}'