Synnefo

Upgrade to Synnefo v0.14

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

The upgrade to v0.14 consists in three steps:

1. Bring down services and backup databases.

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

3. Register services to astakos and perform a quota-related data migration.

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::

   Package `kamaki', installed on all nodes in version 0.13, is not required

   any more and can safely be uninstalled.

.. 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 quotaholder_app 0001 --fake

    astakos-host$ snf-manage migrate quotaholder_app

    astakos-host$ snf-manage migrate im

    cyclades-host$ snf-manage syncdb

    cyclades-host$ snf-manage migrate

    pithos-host$ pithos-migrate upgrade head

2.3 Configure Base URL settings for all services

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

In order to make all services' URLs configurable and discoverable from

a single endpoint in Astakos through the Openstack Keystone API,

every service has a ``XXXXX_BASE_URL`` setting, or it's old corresponding

setting was renamed to this. Therefore:

* Rename ``ASTAKOS_URL`` setting to ``ASTAKOS_BASE_URL``

  everywhere in your settings, in all nodes and all config files.

  This must point to the top-level Astakos URL.

* In Cyclades settings, rename the ``APP_INSTALL_URL`` setting

  to ``CYCLADES_BASE_URL``. If no such setting has been configured,

  you must set it. It must point to the top-level Cyclades URL.

  Rename ``CYCLADES_ASTAKOS_SERVICE_TOKEN`` to ``CYCLADES_SERVICE_TOKEN``.

* In Pithos settings, introduce a ``PITHOS_BASE_URL`` setting; it must point

  to the top-level Pithos URL. Rename ``PITHOS_QUOTAHOLDER_POOLSIZE``, if

  set, to ``PITHOS_ASTAKOSCLIENT_POOLSIZE``.

* In all 20-<service>-cloudbar.conf files change setting

  ``CLOUDBAR_SERVICES_URL`` to point to ``ASTAKOS_BASE_URL/ui/get_services``,

  where ``ASTAKOS_BASE_URL`` as above. Similarly, set

  ``CLOUDBAR_MENU_URL`` to ``ASTAKOS_BASE_URL/ui/get_menu``.

3 Register services and migrate quota

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

You need to register astakos as a component. Moreover you need to register

all services provided by cyclades and pithos.

Running the following script you will be asked to provide the base

installation URL for each component. You will also need to specify the UI

URL for astakos.

The former is the location where each component resides; it should equal

the ``<component_name>_BASE_URL`` as specified in the respective component

settings (see above).

The latter is the URL that appears in the Cloudbar and leads to the

component UI. If you want to follow the default setup, set

the UI URL to ``<base_url>/ui/`` where ``base_url`` is the component's base

URL as explained before. (You can later change the UI URL with

``snf-manage component-modify <component_name> --url new_ui_url``).

For example, for Astakos, if

``BASE_URL = https://accounts.example.synnefo.org/astakos``,

then ``UI_URL = https://accounts.example.synnefo.org/astakos/ui``)::

    astakos-host$ snf-component-register

(ATTENTION: make sure to go to the next step *WITHOUT* running

``snf-manage resource-modify``, suggested at the end of this command)

.. note::

   This command is equivalent to running the following series of commands;

   in each host it exports the respective service definitions, copies the

   exported json file to the astakos host, where it finally imports it:

    .. code-block:: console

       astakos-host$ snf-manage component-add astakos ui_url

       astakos-host$ snf-manage service-export-astakos > astakos.json

       astakos-host$ snf-manage service-import --json astakos.json

       cyclades-host$ snf-manage service-export-cyclades > cyclades.json

       # copy the file to astakos-host

       astakos-host$ snf-manage service-import --json cyclades.json

       pithos-host$ snf-manage service-export-pithos > pithos.json

       # copy the file to astakos-host

       astakos-host$ snf-manage service-import --json pithos.json

The limit on the pending project applications is since 0.14 handled as an

Astakos resource, rather than a custom setting. So, as a last step we need

to run::

    astakos-host$ astakos-migrate-0.14

This will prompt you to set this limit (replacing setting

``ASTAKOS_PENDING_APPLICATION_LIMIT``) and then automatically migrate the

user-specific base quota for the new resource ``astakos.pending_app`` using

the deprecated user setting.

You are now done migrating from Synnefo v0.13 to v0.14. Please test your

installation to make sure everything works as expected.

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