php extension mongodb

how to install php ext-mongodb ? Could not find any instructions, some tips/pointers appreciated

See PHP-FPM | ApisCP Docs

LGTM

# upcp -sb --var="pecl_extensions=mongodb" php/install-extensions

PLAY [localhost] *******************************************************************************************************
included: /usr/local/apnscp/resources/playbooks/roles/php/install-extensions/tasks/verify-and-install.yml for localhost

TASK [php/install-extensions : Build and install mongodb library.] *****************************************************
changed: [localhost]

TASK [php/install-extensions : Check if mongodb loaded] ****************************************************************
changed: [localhost]
included: /usr/local/apnscp/resources/playbooks/roles/php/install-extensions/tasks/populate-module-ini.yml for localhost
included: /usr/local/apnscp/resources/playbooks/roles/php/install-extensions/tasks/populate-module-ini.yml for localhost

TASK [php/install-extensions : Add PECL module configuration] **********************************************************
changed: [localhost]
included: /usr/local/apnscp/resources/playbooks/roles/common/handlers/restart-php-fpm.yml for localhost

RUNNING HANDLER [common : Stop php-fpm] ********************************************************************************
changed: [localhost]

RUNNING HANDLER [common : Start php-fpm] *******************************************************************************
changed: [localhost]
[WARNING]: flush_handlers task does not support when conditional

PLAY RECAP *************************************************************************************************************
localhost                  : ok=29   changed=5    unreachable=0    failed=0    skipped=9    rescued=0    ignored=0