Synnefo

Upgrade to Synnefo v0.15

^^^^^^^^^^^^^^^^^^^^^^^^

The upgrade to v0.15 consists in the following steps:

1. Bring down services and backup databases.

2. Upgrade packages, migrate the databases and configure settings.

3. Re-register components and services in astakos.

4. Bring up all services.

.. warning::

    It is strongly suggested that you keep separate database backups

    for each service after the completion of each step.

1. Bring web services down, backup databases

============================================

1. All web services must be brought down so that the database maintains a

   predictable and consistent state during the migration process::

    $ service gunicorn stop

    $ service snf-dispatcher stop

    $ service snf-ganeti-eventd stop

2. Backup databases for recovery to a pre-migration state.

3. Keep the database servers running during the migration process.

2. Upgrade Synnefo and configure settings

=========================================

2.1 Install the new versions of packages

----------------------------------------

::

    astakos.host$ apt-get install \

                            python-objpool \

                            snf-common \

                            python-astakosclient \

                            snf-django-lib \

                            snf-webproject \

                            snf-branding \

                            snf-astakos-app

    cyclades.host$ apt-get install \

                            python-objpool \

                            snf-common \

                            python-astakosclient \

                            snf-django-lib \

                            snf-webproject \

                            snf-branding \

                            snf-pithos-backend \

                            snf-cyclades-app

    pithos.host$ apt-get install \

                            python-objpool \

                            snf-common \

                            python-astakosclient \

                            snf-django-lib \

                            snf-webproject \

                            snf-branding \

                            snf-pithos-backend \

                            snf-pithos-app \

                            snf-pithos-webclient

    ganeti.node$ apt-get install \

                            python-objpool \

                            snf-common \

                            snf-cyclades-gtools \

                            snf-pithos-backend

.. note::

   Make sure `snf-webproject' has the same version with snf-common

.. note::

    Installing the packages will cause services to start. Make sure you bring

    them down again (at least ``gunicorn``, ``snf-dispatcher``)

2.2 Sync and migrate the database

---------------------------------

.. note::

   If you are asked about stale content types during the migration process,

   answer 'no' and let the migration finish.

::

    astakos-host$ snf-manage syncdb

    astakos-host$ snf-manage migrate

    cyclades-host$ snf-manage syncdb

    cyclades-host$ snf-manage migrate

    pithos-host$ pithos-migrate upgrade head

3. Re-register components and services in astakos

=================================================

Component registration has changed; you will thus need to repeat the

process. On the astakos node, run::

    astakos-host$ snf-component-register

This will detect that the Synnefo components are already registered and ask

to re-register. Answer positively. You need to enter the base URL and the UI

URL for each component, just like during the initial registration.

4. Bring all services up

========================

After the upgrade is finished, we bring up all services:

.. code-block:: console

    astakos.host  # service gunicorn start

    cyclades.host # service gunicorn start

    pithos.host   # service gunicorn start

    cyclades.host # service snf-dispatcher start