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---
- name: Set kubeadm_discovery_address
set_fact:
kubeadm_discovery_address: >-
{%- if "127.0.0.1" or "localhost" in kube_apiserver_endpoint -%}
{{ first_kube_master }}:{{ kube_apiserver_port }}
{%- else -%}
{{ kube_apiserver_endpoint }}
{%- endif %}
tags:
- facts
- name: Check if kubelet.conf exists
stat:
path: "{{ kube_config_dir }}/kubelet.conf"
register: kubelet_conf
- name: Calculate kubeadm CA cert hash
shell: openssl x509 -pubkey -in {{ kube_config_dir }}/ssl/ca.crt | openssl rsa -pubin -outform der 2>/dev/null | openssl dgst -sha256 -hex | sed 's/^.* //'
register: kubeadm_ca_hash
delegate_to: "{{ groups['kube-master'][0] }}"
run_once: true
- name: Create kubeadm token for joining nodes with 24h expiration (default)
command: "{{ bin_dir }}/kubeadm token create"
run_once: true
register: temp_token
delegate_to: "{{ groups['kube-master'][0] }}"
- name: Create kubeadm client config
template:
src: kubeadm-client.conf.j2
dest: "{{ kube_config_dir }}/kubeadm-client.conf"
backup: yes
when: not is_kube_master
vars:
kubeadm_token: "{{ temp_token.stdout }}"
register: kubeadm_client_conf
- name: Join to cluster if needed
command: >-
{{ bin_dir }}/kubeadm join
--config {{ kube_config_dir}}/kubeadm-client.conf
--ignore-preflight-errors=all
register: kubeadm_join
when: not is_kube_master and (kubeadm_client_conf.changed or not kubelet_conf.stat.exists)
- name: Wait for kubelet bootstrap to create config
wait_for:
path: "{{ kube_config_dir }}/kubelet.conf"
delay: 1
timeout: 60
- name: Update server field in kubelet kubeconfig
lineinfile:
dest: "{{ kube_config_dir }}/kubelet.conf"
regexp: 'server:'
line: ' server: {{ kube_apiserver_endpoint }}'
backup: yes
when: not is_kube_master and kubeadm_discovery_address != kube_apiserver_endpoint
notify: restart kubelet
- name: Update server field in kube-proxy kubeconfig
shell: >-
{{ bin_dir }}/kubectl get configmap kube-proxy -n kube-system -o yaml
| sed 's#server:.*#server:\ {{ kube_apiserver_endpoint }}#g'
| kubectl replace -f -
delegate_to: "{{groups['kube-master']|first}}"
run_once: true
when: is_kube_master and kubeadm_discovery_address != kube_apiserver_endpoint
- name: Restart all kube-proxy pods to ensure that they load the new configmap
shell: "{{ bin_dir }}/kubectl delete pod -n kube-system -l k8s-app=kube-proxy"
delegate_to: "{{groups['kube-master']|first}}"
run_once: true
when: is_kube_master and kubeadm_discovery_address != kube_apiserver_endpoint
# FIXME(mattymo): Reconcile kubelet kubeconfig filename for both deploy modes
- name: Symlink kubelet kubeconfig for calico/canal
file:
src: "{{ kube_config_dir }}//kubelet.conf"
dest: "{{ kube_config_dir }}/node-kubeconfig.yaml"
state: link
force: yes
when: kube_network_plugin in ['calico','canal']