kubespray/roles/kubernetes/secrets/tasks/gen_certs_vault.yml

---
- import_tasks: sync_kube_master_certs.yml
  when: inventory_hostname in groups['kube-master']

- import_tasks: sync_kube_node_certs.yml
  when: inventory_hostname in groups['k8s-cluster']

# Issue admin certs to kube-master hosts
- include_tasks: ../../../vault/tasks/shared/issue_cert.yml
  vars:
    issue_cert_common_name: "admin"
    issue_cert_copy_ca: "{{ item == kube_admin_certs_needed|first }}"
    issue_cert_file_group: "{{ kube_cert_group }}"
    issue_cert_file_owner: kube
    issue_cert_hosts: "{{ groups['kube-master'] }}"
    issue_cert_path: "{{ item }}"
    issue_cert_role: kube-master
    issue_cert_url: "{{ hostvars[groups.vault|first]['vault_leader_url'] }}"
    issue_cert_mount_path: "{{ kube_vault_mount_path }}"
  with_items: "{{ kube_admin_certs_needed|d([]) }}"
  when: inventory_hostname in groups['kube-master']

- name: gen_certs_vault | Set fact about certificate alt names
  set_fact:
    kube_cert_alt_names: >-
      {{
      groups['kube-master'] +
      ['kubernetes.default.svc.cluster.local', 'kubernetes.default.svc', 'kubernetes.default', 'kubernetes'] +
      ['localhost']
      }}
  run_once: true

- name: gen_certs_vault | Add external load balancer domain name to certificate alt names
  set_fact:
    kube_cert_alt_names: "{{ kube_cert_alt_names + [apiserver_loadbalancer_domain_name] }}"
  when: loadbalancer_apiserver is defined
  run_once: true

# Issue master components certs to kube-master hosts
- include_tasks: ../../../vault/tasks/shared/issue_cert.yml
  vars:
    issue_cert_common_name: "kubernetes"
    issue_cert_alt_names: "{{ kube_cert_alt_names }}"
    issue_cert_file_group: "{{ kube_cert_group }}"
    issue_cert_file_owner: kube
    issue_cert_hosts: "{{ groups['kube-master'] }}"
    issue_cert_ip_sans: >-
        [
        {%- for host in groups['kube-master']  -%}
        "{{ hostvars[host]['ansible_default_ipv4']['address'] }}",
        {%- if hostvars[host]['ip'] is defined -%}
        "{{ hostvars[host]['ip'] }}",
        {%- endif -%}
        {%- endfor -%}
        "127.0.0.1","::1","{{ kube_apiserver_ip }}"
        ]
    issue_cert_path: "{{ item }}"
    issue_cert_role: kube-master
    issue_cert_url: "{{ hostvars[groups.vault|first]['vault_leader_url'] }}"
    issue_cert_mount_path: "{{ kube_vault_mount_path }}"
  with_items: "{{ kube_master_components_certs_needed|d([]) }}"
  when: inventory_hostname in groups['kube-master']
  notify: set secret_changed

# Issue node certs to k8s-cluster nodes
- include_tasks: ../../../vault/tasks/shared/issue_cert.yml
  vars:
    # Need to strip out the 'node-' prefix from the cert name so it can be used
    # with the node authorization plugin ( CN matches kubelet node name )
    issue_cert_common_name: "system:node:{{ item.rsplit('/', 1)[1].rsplit('.', 1)[0] | regex_replace('^node-', '') }}"
    issue_cert_copy_ca: "{{ item == kube_node_certs_needed|first }}"
    issue_cert_file_group: "{{ kube_cert_group }}"
    issue_cert_file_owner: kube
    issue_cert_hosts: "{{ groups['k8s-cluster'] }}"
    issue_cert_path: "{{ item }}"
    issue_cert_role: kube-node
    issue_cert_url: "{{ hostvars[groups.vault|first]['vault_leader_url'] }}"
    issue_cert_mount_path: "{{ kube_vault_mount_path }}"
  with_items: "{{ kube_node_certs_needed|d([]) }}"
  when: inventory_hostname in groups['k8s-cluster']

# Issue proxy certs to k8s-cluster nodes
- include_tasks: ../../../vault/tasks/shared/issue_cert.yml
  vars:
    issue_cert_common_name: "system:kube-proxy"
    issue_cert_copy_ca: "{{ item == kube_proxy_certs_needed|first }}"
    issue_cert_file_group: "{{ kube_cert_group }}"
    issue_cert_file_owner: kube
    issue_cert_hosts: "{{ groups['k8s-cluster'] }}"
    issue_cert_path: "{{ item }}"
    issue_cert_role: kube-proxy
    issue_cert_url: "{{ hostvars[groups.vault|first]['vault_leader_url'] }}"
    issue_cert_mount_path: "{{ kube_vault_mount_path }}"
  with_items: "{{ kube_proxy_certs_needed|d([]) }}"
  when: inventory_hostname in groups['k8s-cluster']

# Issue front proxy cert to kube-master hosts
- include_tasks: ../../../vault/tasks/shared/issue_cert.yml
  vars:
    issue_cert_common_name: "front-proxy-client"
    issue_cert_alt_names: "{{ kube_cert_alt_names }}"
    issue_cert_file_group: "{{ kube_cert_group }}"
    issue_cert_file_owner: kube
    issue_cert_hosts: "{{ groups['kube-master'] }}"
    issue_cert_ip_sans: >-
        [
        {%- for host in groups['kube-master']  -%}
        "{{ hostvars[host]['ansible_default_ipv4']['address'] }}",
        {%- if hostvars[host]['ip'] is defined -%}
        "{{ hostvars[host]['ip'] }}",
        {%- endif -%}
        {%- endfor -%}
        "127.0.0.1","::1","{{ kube_apiserver_ip }}"
        ]
    issue_cert_path: "{{ item }}"
    issue_cert_role: front-proxy-client
    issue_cert_url: "{{ hostvars[groups.vault|first]['vault_leader_url'] }}"
    issue_cert_mount_path: "{{ kube_vault_mount_path }}"
  with_items: "{{ kube_front_proxy_clients_certs_needed|d([]) }}"
  when: inventory_hostname in groups['kube-master']
  notify: set secret_changed