---
- name: create certs directory for nfd-worker
  file:
    path: /etc/kubernetes/node-feature-discovery/certs
    state: directory
    owner: nobody
    group: root
    mode: 0500

- name: install CA certificate
  copy:
    content: "{{ node_feature_discovery_ca_certificate.content | b64decode }}"
    dest: /etc/kubernetes/node-feature-discovery/certs/ca.crt

- name: create private key for worker certificate
  openssl_privatekey:
    path: /etc/kubernetes/node-feature-discovery/certs/tls.key
    type: RSA
    size: 4096
    owner: nobody
    group: root
    mode: 0400

- name: create signing request for worker certificate
  openssl_csr:
    path: /etc/kubernetes/node-feature-discovery/certs/tls.csr
    privatekey_path: /etc/kubernetes/node-feature-discovery/certs/tls.key
    CN: "{{ kubernetes_node_name }}"
    key_usage:
    - digitalSignature
    key_usage_critical: yes
    extended_key_usage:
    - clientAuth
    extended_key_usage_critical: yes
    basic_constraints:
    - 'CA:FALSE'
    basic_constraints_critical: yes

- name: slurp CSR for worker certificate
  slurp:
    src: /etc/kubernetes/node-feature-discovery/certs/tls.csr
  register: node_feature_discovery_worker_csr

- name: check if worker certificate already exists
  stat:
    path: /etc/kubernetes/node-feature-discovery/certs/tls.crt
  register: node_feature_discovery_worker_certificate_stat

- name: read worker certificate validity
  when: node_feature_discovery_worker_certificate_stat.stat.exists
  openssl_certificate_info:
    path: /etc/kubernetes/node-feature-discovery/certs/tls.crt
    valid_at:
      ten_years: '+3650d'
  register: node_feature_discovery_worker_certificate_info

- name: slurp existing worker certificate
  when: node_feature_discovery_worker_certificate_stat.stat.exists
  slurp:
    src: /etc/kubernetes/node-feature-discovery/certs/tls.crt
  register: node_feature_discovery_worker_certificate_current

- name: generate worker certificate
  delegate_to: "{{ groups['_kubernetes_primary_controlplane_node_'] | first }}"
  community.crypto.x509_certificate_pipe:
    content: "{{ node_feature_discovery_worker_certificate_current.content | default('') | b64decode }}"
    csr_content: "{{ node_feature_discovery_worker_csr.content | b64decode }}"
    provider: ownca
    ownca_path: /etc/kubernetes/addons/node-feature-discovery/ca/crt.pem
    ownca_privatekey_path: /etc/kubernetes/addons/node-feature-discovery/ca/key.pem
    ownca_digest: sha256
    ownca_not_after: "+18250d" ## 50 years
    force: "{{ node_feature_discovery_worker_certificate_stat.stat.exists and (not node_feature_discovery_worker_certificate_info.valid_at.ten_years) }}"
  register: node_feature_discovery_worker_cert

- name: store worker certificate
  copy:
    content: "{{ node_feature_discovery_worker_cert.certificate }}"
    dest: /etc/kubernetes/node-feature-discovery/certs/tls.crt