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.. _app_migrate_to_juno:
Migrate applications from Murano v0.5 to Stable/Juno
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Applications created for murano v0.5, unfortunately, are not supported in Murano
stable/juno. This document provides the application code changes required for
compatibility with the stable/juno murano version.
Rename *'Workflow'* to *'Methods'*
----------------------------------
In stable/juno the name of section containing class methods is renamed to
*Methods*, as the latter is more OOP and doesn't cause confusion with Mistral. So,
you need to change it in *app.name/Classes* in all classes describing workflow
of your app.
For example:
.. code-block:: yaml
Workflow:
deploy:
Body:
- $._environment.reporter.report($this, 'Creating VM')
Should be changed to:
.. code-block:: yaml
Methods:
deploy:
Body:
- $._environment.reporter.report($this, 'Creating VM')
Change the Instance type in the UI definition 'Application' section
-------------------------------------------------------------------
The Instance class was too generic and contained some dirty workarounds to
differently handle Windows and Linux images, to bootstrap an instance in a
number of ways, etc. To solve these problems more classes were added to the
*Instance* inheritance hierarchy.
Now, base *Instance* class is abstract and agnostic of the desired OS and agent
type. It is inherited by two classes: *LinuxInstance* and *WindowsInstance*.
- *LinuxInstance* adds a default security rule for Linux, opening a standard
SSH port;
- *WindowsInstance* adds a default security rule for Windows, opening an RDP
port. At the same time WindowsInstance prepares a user-data allowing to use
Murano v1 agent.
*LinuxInstance* is inherited by two other classes, having different software
config method:
- *LinuxMuranoInstance* adds a user-data preparation to configure Murano
v2 agent;
- *LinuxUDInstance* adds a custom user-data field allowing the services to
supply their own user data.
You need to specify the instance type which is required by your app. It
specifies a field in UI, where user can select an image matched to the instance
type. This change must be added to UI form definition in *app.name/UI/ui.yaml*.
For example, if you are going to install your application on Ubuntu, you need to
change:
.. code-block:: yaml
Application:
?:
instance:
?:
type: io.murano.resources.Instance
to:
.. code-block:: yaml
Application:
?:
instance:
?:
type: io.murano.resources.LinuxMuranoInstance
|
