computer-playbook/roles/web-app-wordpress/tasks/utils/mcp.yml

---
- name: "🔍 Resolve {{ application_id }} hosting node + container id"
  ansible.builtin.include_tasks: "{{ lookup('path_absolute', 'roles/sys-svc-compose/tasks/utils/swarm/resolve_host_cid.yml') }}"
  vars:
    resolve_service_key: "{{ entity_name }}"
    resolve_output_prefix: WORDPRESS_MCP
    resolve_compose_cid: "{{ WORDPRESS_CONTAINER_ADDRESS }}"

- name: "🔍 Read the MCP application password this site already issued"
  ansible.builtin.set_fact:
    wordpress_mcp_token: "{{ lookup('mcp_credential', application_id) }}"
  no_log: "{{ MASK_CREDENTIALS_IN_LOGS | bool }}"

- name: "🔍 List the accounts this site knows"
  ansible.builtin.shell: | # nocheck: container-exec-resolver  runtime-resolved CID, delegated to the hosting node
    container exec -u {{ WORDPRESS_USER }} {{ WORDPRESS_MCP_LOCAL_CID | quote }} \
      wp user list --field=user_login --path={{ WORDPRESS_DOCKER_HTML_PATH | quote }}
  register: wordpress_mcp_users
  changed_when: false
  delegate_to: "{{ WORDPRESS_MCP_HOST_NODE }}"
  run_once: true

- name: "👤 Create the subscriber the MCP adapter authenticates as"
  ansible.builtin.shell: | # nocheck: container-exec-resolver  runtime-resolved CID, delegated to the hosting node
    container exec -u {{ WORDPRESS_USER }} {{ WORDPRESS_MCP_LOCAL_CID | quote }} \
      wp user create {{ WORDPRESS_MCP_USERNAME | quote }} {{ WORDPRESS_MCP_EMAIL | quote }} \
        --role={{ WORDPRESS_MCP_ROLE | quote }} --user_pass={{ WORDPRESS_MCP_USER_PASSWORD | quote }} \
        --path={{ WORDPRESS_DOCKER_HTML_PATH | quote }}
  when: WORDPRESS_MCP_USERNAME not in wordpress_mcp_users.stdout_lines
  changed_when: true
  delegate_to: "{{ WORDPRESS_MCP_HOST_NODE }}"
  run_once: true
  no_log: "{{ MASK_CREDENTIALS_IN_LOGS | bool }}"

- name: "🔍 List the application passwords that account holds"
  ansible.builtin.shell: | # nocheck: container-exec-resolver  runtime-resolved CID, delegated to the hosting node
    container exec -u {{ WORDPRESS_USER }} {{ WORDPRESS_MCP_LOCAL_CID | quote }} \
      wp user application-password list {{ WORDPRESS_MCP_USERNAME | quote }} \
        --fields=uuid,name --format=json --path={{ WORDPRESS_DOCKER_HTML_PATH | quote }}
  register: wordpress_mcp_app_passwords
  changed_when: false
  delegate_to: "{{ WORDPRESS_MCP_HOST_NODE }}"
  run_once: true
  no_log: "{{ MASK_CREDENTIALS_IN_LOGS | bool }}"

- name: "🔧 Take the uuids wp-cli deletes that password by"
  ansible.builtin.set_fact:
    wordpress_mcp_credential_uuids: >-
      {{ wordpress_mcp_app_passwords.stdout | from_json
         | selectattr('name', 'equalto', WORDPRESS_MCP_APP_PASSWORD_NAME)
         | map(attribute='uuid') | list }}
  run_once: true

- name: "🔑 Issue the application password MCP clients present"
  when: >-
    wordpress_mcp_token | length == 0
    or wordpress_mcp_credential_uuids | length == 0
  block:
    - name: "🧹 Drop the application password the store cannot read back"
      ansible.builtin.shell: | # nocheck: container-exec-resolver  runtime-resolved CID, delegated to the hosting node
        container exec -u {{ WORDPRESS_USER }} {{ WORDPRESS_MCP_LOCAL_CID | quote }} \
          wp user application-password delete {{ WORDPRESS_MCP_USERNAME | quote }} \
            {{ wordpress_mcp_credential_uuids | map('quote') | join(' ') }} \
            --path={{ WORDPRESS_DOCKER_HTML_PATH | quote }}
      when: wordpress_mcp_credential_uuids | length > 0
      changed_when: true
      delegate_to: "{{ WORDPRESS_MCP_HOST_NODE }}"
      run_once: true

    - name: "🔑 Mint the application password without its display spaces"
      ansible.builtin.shell: | # nocheck: container-exec-resolver  runtime-resolved CID, delegated to the hosting node
        container exec -u {{ WORDPRESS_USER }} {{ WORDPRESS_MCP_LOCAL_CID | quote }} \
          wp user application-password create {{ WORDPRESS_MCP_USERNAME | quote }} \
            {{ WORDPRESS_MCP_APP_PASSWORD_NAME | quote }} --porcelain --path={{ WORDPRESS_DOCKER_HTML_PATH | quote }}
      register: wordpress_mcp_mint
      changed_when: true
      delegate_to: "{{ WORDPRESS_MCP_HOST_NODE }}"
      run_once: true
      no_log: "{{ MASK_CREDENTIALS_IN_LOGS | bool }}"

    - name: "🔧 Take the minted password from the wp-cli output"
      ansible.builtin.set_fact:
        wordpress_mcp_token: "{{ wordpress_mcp_mint.stdout_lines | last | trim | replace(' ', '') }}"
      no_log: "{{ MASK_CREDENTIALS_IN_LOGS | bool }}"
      run_once: true

- name: "🛑 Refuse a site that issued no usable application password"
  ansible.builtin.assert:
    that:
      - wordpress_mcp_token | length >= 24
    fail_msg: >-
      WordPress issued no application password for {{ WORDPRESS_MCP_USERNAME }},
      so every MCP client would be configured with an empty credential and the
      reconciliation stage would refuse to render this provider.

- name: "💾 Persist the password so MCP clients can read it"
  ansible.builtin.include_role:
    name: sys-token-store
    tasks_from: write.yml
  vars:
    sys_token_store_user_key: "{{ lookup('config', application_id, 'mcp.credential.owner') }}"
    sys_token_store_app: "{{ application_id }}"
    sys_token_store_token: "{{ wordpress_mcp_token }}"
  no_log: "{{ MASK_CREDENTIALS_IN_LOGS | bool }}"