.. _update:

Update to FindFace Multi 1.1
=============================================

.. tip::
   If you use our product FindFace Security deployed on Ubuntu 18.04, you can `upgrade <https://docs.ntechlab.com/projects/ffmulti/en/1.0/update.html>`_ it to FindFace Multi 1.0 and then update it to FindFace Multi 1.1. 

To update FindFace Multi 1.0 to 1.1, do the following:

#. Open the ``/etc/findface-security/config.py`` (``/etc/ffsecurity/config.py``) configuration file. Save the values of the following parameters for later use: ``EXTERNAL_ADDRESS``, ``SECRET_KEY``, ``VIDEO_DETECTOR_TOKEN``, ``ROUTER_URL``.

   .. code::

      sudo vi /etc/findface-security/config.py

      EXTERNAL_ADDRESS = "http://172.20.77.58"

      ...
      # use pwgen -sncy 50 1|tr "'" "." to generate your own unique key
      SECRET_KEY = 'c8b533847bbf7142102de1349d33a1f6'

      FFSECURITY = {
         'VIDEO_DETECTOR_TOKEN': '381b0f4a20495227d04185ab02f5085f',
         ... 
         'ROUTER_URL': 'http://172.20.77.58',
         ...
      }
 
#. Stop the ``findface-security`` service.

   .. code::

      sudo systemctl stop findface-security*.service

#. Create a backup of the Tarantool-based feature vector database in any directory of your choice, for example, ``/etc/findface_dump``. 

   .. tip::
      See :ref:`backup-restore` for details.
 
   .. code::

      sudo mkdir -p /etc/findface_dump
      cd /etc/findface_dump
      sudo findface-storage-api-dump -config /etc/findface-sf-api.ini


#. Install the apt repository with FindFace Multi, using the console installer as described in :ref:`this section <install-repo>`.

#. Install NATS, enable its autostart, and launch the service. 

   .. code:: 

      sudo apt install -y nats-server
      sudo systemctl enable nats-server
      sudo systemctl restart nats-server

#. Install the FindFace Multi services from the repository, following your architecture outline.

   CPU-version:
 
   .. code::

      sudo apt update
      sudo apt install findface-security findface-security-ui findface-extraction-api findface-ntls findface-sf-api findface-tarantool-server findface-upload findface-video-manager findface-video-worker-cpu findface-counter findface-liveness-api

   GPU-version:

   .. code::

      sudo apt update
      sudo apt install findface-security findface-security-ui findface-extraction-api-gpu findface-ntls findface-sf-api findface-tarantool-server findface-upload findface-video-manager findface-video-worker-gpu findface-counter findface-liveness-api

   .. important::
      FindFace Multi on GPU requires the prior installation of :ref:`NVIDIA drivers <nvidia-drivers>`.

   .. important::
      At some moment, you will be prompted to choose which version of the ``findface-security`` configuration file to keep. Opt for ``Install the packages maintainer’s version``.

#. Open the ``/etc/findface-security/config.py`` configuration file and paste the saved ``EXTERNAL_ADDRESS``, ``SECRET_KEY``, ``VIDEO_DETECTOR_TOKEN``, and ``ROUTER_URL`` into it. Fill in the ``DATABASES`` section by analogy: ``'PORT': 5439, 'USER': 'ntech', 'PASSWORD': '9T3g1nXy9yx3y8MIGm9fbef3dia8UTc3'`` (password from ``/etc/pgbouncer/userlist.txt``).

   .. code::

      sudo vi /etc/findface-security/config.py
      ...
      # Database is used by FindFace Security to store cameras,
      # camera groups, watchlists and so on. Only PostgreSQL is supported.
      DATABASES = {
          'default': {
              'ENGINE': 'django.db.backends.postgresql',
              'DISABLE_SERVER_SIDE_CURSORS': True,
              'NAME': 'ffsecurity',
              'PORT': 5439, 'USER': 'ntech', 'PASSWORD': '9T3g1nXy9yx3y8MIGm9fbef3dia8UTc3',
          }
      }
      ...
      # Use pwgen -sncy 50 1|tr "'" "." to generate your own unique key
      SECRET_KEY = '002231ccb690586f4d33e98322c591bb'
      ...
      SERVICE_EXTERNAL_ADDRESS = 'http://172.20.77.58'
      # EXTERNAL_ADDRESS is used to access objects created inside FFSecurity via external links.
      EXTERNAL_ADDRESS = 'http://172.20.77.58'
      ...
          # findface-video-worker authorization token
          'VIDEO_DETECTOR_TOKEN': '8977e1b0067d43f6c908d0bf60363255',
      ...
          # findface-video-worker face posting address,
          # it must be set to either FFSecurity EXTERNAL_ADDRESS (by default)
          # or findface-facerouter url (in some specific cases)
          'ROUTER_URL': 'http://127.0.0.1:80',

#. Open the old version of the ``findface-ntls`` configuration file available at ``/etc/findface-ntls.cfg.dpkg-old`` and check it against the new version ``/etc/findface-ntls.cfg``. Make sure that all the custom parameters from the old version are present in the new one. Do the same for other components, e.g. for ``findface-extraction-api``, check ``/etc/findface-extraction-api.ini.ucf-old`` against ``/etc/findface-extraction-api.ini``, etc. 

   .. code::

      sudo vi /etc/findface-ntls.cfg.dpkg-old
      sudo vi /etc/findface-ntls.cfg
      sudo vi /etc/findface-extraction-api.ini.ucf-old
      sudo vi /etc/findface-extraction-api.ini

      ...

#. Open the new version of the ``/etc/findface-video-worker-cpu.ini`` (``/etc/findface-video-worker-gpu.ini``) configuration file. In the ``streamer`` section, set ``tracks = true`` to ensure bboxes on the Video Wall are appropriately displayed.

   .. code::

      sudo vi /etc/findface-video-worker-cpu.ini
      sudo vi /etc/findface-video-worker-gpu.ini

      [streamer]
      #------------------------------
      ...
      ## use tracks instead detects for streamer
      ## type:bool env:CFG_STREAMER_TRACKS longopt:--streamer-tracks
      tracks = true

#. Restart the services.

   .. code::

      sudo systemctl restart findface-ntls findface-extraction-api findface-video-worker* findface-video-manager findface-sf-api findface-counter findface-liveness-api


#. Modify the Tarantool database structure by applying the ``tnt_schema.lua`` file from FindFace Multi.
 
   .. code::

      sudo findface-security make_tnt_schema | sudo tee /etc/findface-security/tnt_schema.lua

#. Stop the ``findface-tarantool-server`` shards. Purge data from all the directories relevant to active shards.
 
   .. code::

      sudo systemctl stop 'tarantool@*'

      sudo rm /opt/ntech/var/lib/tarantool/shard-*/{index,snapshots,xlogs}/*

#. Navigate to the directory with Tarantool configuration file(s) ``/etc/tarantool/instances.available/``. Check whether each configuration file ``shard-*.lua`` contains the ``dofile`` command, ``meta_indexes`` and ``meta_scheme`` definitions, as in the example below.  

   .. code::

      sudo vi /etc/tarantool/instances.available/shard-*.lua
 
      ...
      dofile("/etc/findface-security/tnt_schema.lua")
      ...
      FindFace.start("127.0.0.1", 8101, {
          license_ntls_server="127.0.0.1:3133",
          meta_indexes=meta_indexes,
          meta_scheme = meta_scheme
      })

#. Restart the ``findface-tarantool-server`` shards.

   .. code::

      TNT=$(ls /etc/tarantool/instances.enabled/ | cut -c 7,8,9)
      for i in $TNT; do sudo systemctl restart tarantool@shard-$i.service ; done


#. Restore the Tarantool database from the backup.
 
   .. code::

      cd /etc/findface_dump

      for x in *.json; do sudo findface-storage-api-restore -config /etc/findface-sf-api.ini < "$x"; done

#. Migrate the main database architecture from FindFace Multi to :program:`PostgreSQL`, re-create user groups with :ref:`predefined <users>` rights, and the first user with administrator rights.

   .. code::

      sudo findface-security migrate
      sudo findface-security create_groups
      sudo findface-security create_default_user

#. Restart the ``findface-security`` service.

   .. code::

      sudo systemctl restart findface-security.service


.. important::

   To preserve the FindFace Multi compatibility with the installation environment, we highly recommend you to disable the Ubuntu automatic update. In this case, you will be able to update your OS manually, fully controlling which packages to update.

   To disable the Ubuntu automatic update, execute the following commands:

   .. code::

      sudo apt-get remove unattended-upgrades
      sudo systemctl stop apt-daily.timer
      sudo systemctl disable apt-daily.timer
      sudo systemctl disable apt-daily.service
      sudo systemctl daemon-reload