kubespray/roles/vault/tasks/cluster/init.yml

---

- name: cluster/init | Initialize Vault
  uri:
    url: "https://{{ groups.vault|first }}:{{ vault_port }}/v1/sys/init"
    headers: "{{ vault_client_headers }}"
    method: POST
    body_format: json
    body:
      secret_shares: "{{ vault_secret_shares }}"
      secret_threshold: "{{ vault_secret_threshold }}"
    validate_certs: false
  register: vault_init_result
  when: not vault_cluster_is_initialized and inventory_hostname == groups.vault|first

- name: cluster/init | Set facts on the results of the initialization
  set_fact:
    vault_unseal_keys: "{{ vault_init_result.json['keys'] }}"
    vault_root_token: "{{ vault_init_result.json.root_token }}"
    vault_headers: "{{ vault_client_headers|combine({'X-Vault-Token': vault_init_result.json.root_token}) }}"
  when: not vault_cluster_is_initialized and inventory_hostname == groups.vault|first

- name: cluster/init | Ensure all hosts have these facts
  set_fact:
    vault_unseal_keys: "{{ hostvars[groups.vault|first]['vault_unseal_keys'] }}"
    vault_root_token: "{{ hostvars[groups.vault|first]['vault_root_token'] }}"
  when: not vault_cluster_is_initialized and inventory_hostname != groups.vault|first

- name: cluster/init | Ensure the vault_secrets_dir exists
  file:
    mode: 0750
    path: "{{ vault_secrets_dir }}"
    state: directory

- name: cluster/init | Ensure all in groups.vault have the unseal_keys locally
  copy:
    content: "{{ vault_unseal_keys|join('\n') }}"
    dest: "{{ vault_secrets_dir }}/unseal_keys"
    mode: 0640
  when: not vault_cluster_is_initialized

- name: cluster/init | Ensure all in groups.vault have the root_token locally
  copy:
    content: "{{ vault_root_token }}"
    dest: "{{ vault_secrets_dir }}/root_token"
    mode: 0640
  when: not vault_cluster_is_initialized

- name: cluster/init | Ensure vault_headers and vault statuses are updated
  set_fact:
    vault_headers: "{{ vault_client_headers | combine({'X-Vault-Token': vault_root_token})}}"
    vault_cluster_is_initialized: true