`potato_platform`: Dynamically generate cluster password

[syndr]

The 'potato' platform role currently expects the password for access to the influxdb DB to be provided in the molecule configuration file, which leads to plain text passwords being stored.

This password should be dynamically generated during creation and stored in a local configuration file on the Molecule controller during execution.

[emoruzzi]

take a look at using influxdata.utils.potato_api, I do have a few updates coming to it soon too.

      - name: Get cluster status until machines are running
        influxdata.utils.potato_api:
          api_host: "{{ api_host }}"
          api_endpoint: "/clusters/{{ cluster_id }}"
          method: GET
          auth_username: "{{ auth_username }}"
          auth_password: "{{ auth_password }}"
          expected_status_code: 200
        register: get_cluster_response
        until: get_cluster_response.content.machines_status == 'terminated'
        retries: 30
        delay: 30