The conditional check 'logstash_ssl_key_file' failed about ansible-role-logstash HOT 6 CLOSED

logstash_ssl_dir: /etc/ssl
logstash_ssl_certificate_file: logstash.crt
logstash_ssl_key_file: logstash.key

---
- name: Ensure Logstash SSL key pair directory exists.
  file:
    path: "{{ logstash_ssl_dir }}"
    state: directory

- name: Deploy cert
  copy:
    src: "files/ssl/node-certs/wildcard.x-x.com.pem"
    dest: /etc/pki/logstash/wildcard.x-x.com.pem
    owner: logstash
    group: logstash

- name: Deploy key
  copy:
    src: "files/ssl/keys/elastic-nodes-key.pkcs8"
    dest: /etc/pki/logstash/elastic-nodes-key.pkcs8
    owner: logstash
    group: logstash

- name: Deploy ca
  copy:
    src: "files/ssl/ca/ca-bundle.pem"
    dest: /etc/pki/logstash/ca-bundle.pem
    owner: logstash
    group: logstash

TASK [geerlingguy.logstash : Ensure Logstash SSL key pair directory exists.] ***************************************************************************************************
fatal: [127.0.0.1]: FAILED! => {"msg": "The conditional check 'logstash_ssl_key_file' failed. The error was: error while evaluating conditional (logstash_ssl_key_file): 'logstash' is undefined\n\nThe error appears to have been in '/home/user/.ansible/roles/geerlingguy.logstash/tasks/ssl.yml': line 2, column 3, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n---\n- name: Ensure Logstash SSL key pair directory exists.\n  ^ here\n"}