From c09b07327b688a6a47f523a15c1a5c29d4f476d0 Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@spreadspace.org>
Date: Sat, 7 May 2022 22:45:49 +0200
Subject: k8s: rename masters to control-plane nodes

---
 .../kubeadm/control-plane/tasks/secondary.yml      | 55 ++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 roles/kubernetes/kubeadm/control-plane/tasks/secondary.yml

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

diff --git a/roles/kubernetes/kubeadm/control-plane/tasks/secondary.yml b/roles/kubernetes/kubeadm/control-plane/tasks/secondary.yml
new file mode 100644
index 00000000..a2dbe081
--- /dev/null
+++ b/roles/kubernetes/kubeadm/control-plane/tasks/secondary.yml
@@ -0,0 +1,55 @@
+---
+- name: fetch secrets needed for secondary control-plane node
+  run_once: true
+  delegate_to: "{{ groups['_kubernetes_primary_controlplane_node_'] | first }}"
+  block:
+
+  - name: fetch list of current nodes
+    command: kubectl --kubeconfig /etc/kubernetes/admin.conf get nodes -o name
+    changed_when: False
+    check_mode: no
+    register: kubectl_node_list
+
+  - name: save list of current nodes
+    set_fact:
+      kubernetes_current_nodes: "{{ kubectl_node_list.stdout_lines | map('replace', 'node/', '') | list }}"
+
+  - name: upload certs
+    when: "groups['_kubernetes_controlplane_nodes_'] | difference(kubernetes_current_nodes) | length > 0"
+    command: kubeadm init phase upload-certs --upload-certs
+    check_mode: no
+    register: kubeadm_upload_certs
+
+
+- name: extracting encryption key for certs
+  set_fact:
+    kubeadm_upload_certs_key: "{% if kubeadm_upload_certs.stdout is defined %}{{ kubeadm_upload_certs.stdout_lines | last }}{% endif %}"
+
+- name: join kubernetes secondary control-plane node and store log
+  block:
+  - name: join kubernetes secondary control-plane node
+    throttle: 1
+    command: "kubeadm join 127.0.0.1:6443 --node-name {{ inventory_hostname }} --apiserver-bind-port 6442{% if kubernetes_overlay_node_ip is defined %} --apiserver-advertise-address {{ kubernetes_overlay_node_ip }}{% endif %} --cri-socket {{ kubernetes_cri_socket }} --token '{{ kube_bootstrap_token }}' --discovery-token-ca-cert-hash '{{ kube_bootstrap_ca_cert_hash }}' --control-plane --certificate-key {{ kubeadm_upload_certs_key }}"
+    args:
+      creates: /etc/kubernetes/kubelet.conf
+    register: kubeadm_join
+
+  always:
+  - name: dump output of kubeadm join to log file
+    when: kubeadm_join is changed
+    # This is not a handler by design to make sure this action runs at this point of the play.
+    copy: # noqa 503
+      content: "{{ kubeadm_join.stdout }}\n"
+      dest: /etc/kubernetes/kubeadm-join.log
+
+  - name: dump error output of kubeadm join to log file
+    when: kubeadm_join.changed and kubeadm_join.stderr
+    copy:
+      content: "{{ kubeadm_join.stderr }}\n"
+      dest: /etc/kubernetes/kubeadm-join.errors
+
+  # TODO: acutally check if node has registered
+- name: give the new control-plane node(s) a moment to register
+  when: kubeadm_join is changed
+  pause: # noqa 503
+    seconds: 5
-- 
cgit v1.2.3