From 20947da3f0961ea36ea62cb54ff675c2a60bcffd Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@spreadspace.org>
Date: Mon, 15 Aug 2022 22:42:01 +0200
Subject: kubernetes/kubeadm: make k8s node name configureable

---
 roles/kubernetes/kubeadm/control-plane/tasks/main.yml    | 14 +++++++-------
 roles/kubernetes/kubeadm/control-plane/tasks/primary.yml |  8 ++++----
 2 files changed, 11 insertions(+), 11 deletions(-)

(limited to 'roles/kubernetes/kubeadm/control-plane/tasks')

diff --git a/roles/kubernetes/kubeadm/control-plane/tasks/main.yml b/roles/kubernetes/kubeadm/control-plane/tasks/main.yml
index fbfc4027..b6160dab 100644
--- a/roles/kubernetes/kubeadm/control-plane/tasks/main.yml
+++ b/roles/kubernetes/kubeadm/control-plane/tasks/main.yml
@@ -22,7 +22,7 @@
 
 
 - name: check if control-plane node is tainted (1/2)
-  command: "kubectl --kubeconfig /etc/kubernetes/admin.conf get node {{ inventory_hostname }} -o json"
+  command: "kubectl --kubeconfig /etc/kubernetes/admin.conf get node {{ kubernetes_node_name }} -o json"
   check_mode: no
   register: kubectl_get_node
   changed_when: False
@@ -36,22 +36,22 @@
   block:
   - name: remove control-plane taint from node
     when: "'node-role.kubernetes.io/control-plane' in kube_node_taints"
-    command: "kubectl --kubeconfig /etc/kubernetes/admin.conf taint nodes {{ inventory_hostname }} node-role.kubernetes.io/control-plane-"
+    command: "kubectl --kubeconfig /etc/kubernetes/admin.conf taint nodes {{ kubernetes_node_name }} node-role.kubernetes.io/control-plane-"
 
   - name: remove deprecated master taint from node
     when: "'node-role.kubernetes.io/master' in kube_node_taints"
-    command: "kubectl --kubeconfig /etc/kubernetes/admin.conf taint nodes {{ inventory_hostname }} node-role.kubernetes.io/master-"
+    command: "kubectl --kubeconfig /etc/kubernetes/admin.conf taint nodes {{ kubernetes_node_name }} node-role.kubernetes.io/master-"
 
 - name: add taint from control-plane node
   when: kubernetes.dedicated_controlplane_nodes
   block:
   - name: add control-plane taint to node
     when: "'node-role.kubernetes.io/control-plane' not in kube_node_taints"
-    command: "kubectl --kubeconfig /etc/kubernetes/admin.conf taint nodes {{ inventory_hostname }} node-role.kubernetes.io/control-plane='':NoSchedule"
+    command: "kubectl --kubeconfig /etc/kubernetes/admin.conf taint nodes {{ kubernetes_node_name }} node-role.kubernetes.io/control-plane='':NoSchedule"
 
   - name: add deprecated master taint to node
     when: "'node-role.kubernetes.io/master' not in kube_node_taints"
-    command: "kubectl --kubeconfig /etc/kubernetes/admin.conf taint nodes {{ inventory_hostname }} node-role.kubernetes.io/master='':NoSchedule"
+    command: "kubectl --kubeconfig /etc/kubernetes/admin.conf taint nodes {{ kubernetes_node_name }} node-role.kubernetes.io/master='':NoSchedule"
 
 - name: prepare kubectl (1/2)
   file:
@@ -66,8 +66,8 @@
 
 - name: add kubectl completion config for shells
   loop:
-    - zsh
-    - bash
+  - zsh
+  - bash
   blockinfile:
     path: "/root/.{{ item }}rc"
     create: yes
diff --git a/roles/kubernetes/kubeadm/control-plane/tasks/primary.yml b/roles/kubernetes/kubeadm/control-plane/tasks/primary.yml
index 4204c07d..cbad58d9 100644
--- a/roles/kubernetes/kubeadm/control-plane/tasks/primary.yml
+++ b/roles/kubernetes/kubeadm/control-plane/tasks/primary.yml
@@ -71,7 +71,7 @@
       kubernetes_current_nodes: "{{ kubectl_node_list.stdout_lines | map('replace', 'node/', '') | list }}"
 
   - name: create bootstrap token for existing cluster
-    when: "groups['_kubernetes_nodes_'] | difference(kubernetes_current_nodes) | length > 0"
+    when: "groups['_kubernetes_nodes_'] | map('extract', hostvars, 'kubernetes_node_name') | difference(kubernetes_current_nodes) | length > 0"
     command: kubeadm token create --ttl 42m
     check_mode: no
     register: kubeadm_token_create
@@ -93,12 +93,12 @@
   changed_when: False
 
 - name: set variables needed by kubernetes/nodes to join the cluster
+  loop: "{{ groups['_kubernetes_nodes_'] }}"
+  delegate_to: "{{ item }}"
+  delegate_facts: True
   set_fact:
     kube_bootstrap_token: "{% if kubeadm_token_generate.stdout is defined %}{{ kubeadm_token_generate.stdout }}{% elif kubeadm_token_create.stdout is defined %}{{ kubeadm_token_create.stdout }}{% endif %}"
     kube_bootstrap_ca_cert_hash: "sha256:{{ kube_ca_openssl.stdout }}"
-  delegate_to: "{{ item }}"
-  delegate_facts: True
-  loop: "{{ groups['_kubernetes_nodes_'] }}"
 
 
 ## install node-local-dns
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