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|
---
- name: create host groups for kubernetes cluster
hosts: "{{ kubernetes_cluster_layout.nodes_group }}"
connection: local
gather_facts: no
run_once: yes
tasks:
- name: sanity check - fail if masters are not included in nodes
assert:
msg: "the cluster node group '{{ kubernetes_cluster_layout.nodes_group }}' must include *all* nodes (master and non-master)"
that: kubernetes_cluster_layout.masters | difference(ansible_play_hosts_all) | length == 0
- name: sanity check - fail if primary master is not in masters
assert:
msg: "kubernetes_cluster_layout.masters must include kubernetes_cluster_layout.primary_master"
that: kubernetes_cluster_layout.primary_master is undefined or kubernetes_cluster_layout.primary_master in kubernetes_cluster_layout.masters
- name: sanity check - fail on multiple masters if no primary master is configured
assert:
msg: "For multiple masters to work you need to define kubernetes_cluster_layout.primary_master"
that: (kubernetes_cluster_layout.masters | length) == 1 or kubernetes_cluster_layout.primary_master is defined
- name: create group for all kubernetes nodes
loop: "{{ ansible_play_hosts_all }}"
add_host:
name: "{{ item }}"
inventory_dir: "{{ hostvars[item].inventory_dir }}"
group: _kubernetes_nodes_
changed_when: False
- name: create group for kubernetes master nodes
loop: "{{ kubernetes_cluster_layout.masters }}"
add_host:
name: "{{ item }}"
inventory_dir: "{{ hostvars[item].inventory_dir }}"
group: _kubernetes_masters_
changed_when: False
- name: create group for kubernetes primary master
vars:
item: "{{ kubernetes_cluster_layout.primary_master | default(kubernetes_cluster_layout.masters[0]) }}"
add_host:
name: "{{ item }}"
inventory_dir: "{{ hostvars[item].inventory_dir }}"
group: _kubernetes_primary_master_
changed_when: False
|
