***************************
Offline Docker installation
***************************

OpenREM can be run on a server that is not connected to the internet if required, though access to
https://hub.docker.com would make installation and upgrades much easier.

The server will need to have Docker and Docker Compose installed.

Collect installation files
==========================

On a computer with internet access:

* Install Docker - this is required to download the images
* Download https://bitbucket.org/openrem/docker/get/1.0.0b3.zip
* Download the Docker images:

.. code-block:: console

    $ docker pull openrem/openrem:release-1.0.0b3

.. code-block:: console

    $ docker pull postgres:12.0-alpine

.. code-block:: console

    $ docker pull openrem/nginx

.. code-block:: console

    $ docker pull rabbitmq:3-management-alpine

.. code-block:: console

    $ docker pull openrem/orthanc

* Now save them as tar files:

.. code-block:: console

    $ docker save -o openrem.tar openrem/openrem:develop

.. code-block:: console

    $ docker save -o openrem-postgres.tar postgres:12.0-alpine

.. code-block:: console

    $ docker save -o openrem-nginx.tar openrem/nginx

.. code-block:: console

    $ docker save -o openrem-rabbitmq.tar rabbitmq:3-management-alpine

.. code-block:: console

    $ docker save -o openrem-orthanc.tar openrem/orthanc

If both the computer with internet access and the target server are Linux or MacOS the images can be made smaller using
gzip, for example:

.. code-block:: console

    $ docker save openrem/openrem:develop | gzip > openrem.tar.gz

Copy all the tar files and the zip file to the server where OpenREM is to be installed.

Load the docker images
======================

On the server where OpenREM is to be installed, in the folder containing the Docker images:

.. code-block:: console

    $ docker load -i openrem.tar

.. code-block:: console

    $ docker load -i openrem-postgres.tar

.. code-block:: console

    $ docker load -i openrem-nginx.tar

.. code-block:: console

    $ docker load -i openrem-rabbitmq.tar

.. code-block:: console

    $ docker load -i openrem-orthanc.tar

If you have compressed the images with gzip the command is the same but with the ``.gz`` suffix, for example:

.. code-block:: console

    $ docker load -i openrem.tar.gz

Check that the images have been loaded:

.. code-block:: console

    $ docker images

Continue to :ref:`dockerinstall`