Merge "[Docs] Add info about using abstract dependencies between applications"
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@ -8,7 +8,7 @@ Use-cases
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=========
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=========
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Performing application interconnections
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Performing application interconnections
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Murano can handle application interconnections installed on virtual machines.
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Murano can handle application interconnections installed on virtual machines.
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The decision of how to combine applications is made by the author of
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The decision of how to combine applications is made by the author of
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@ -46,6 +46,42 @@ Any other methods of any other class can be invoked the same way to
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make the proposal application installation algorithm clear and
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make the proposal application installation algorithm clear and
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constructive. Also, it allows not to duplicate the code in new applications.
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constructive. Also, it allows not to duplicate the code in new applications.
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Abstract dependencies between applications
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------------------------------------------
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In the example above it is also possible to specify a generic class in the
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contract ``com.example.databases.SqlDatabase`` instead of
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``com.example.databases.MySql``. It means that an object of any class inherited
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from ``com.example.databases.SqlDatabase`` can be passed to a parameter. In
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this case you should also use this generic class as a type for a field in
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the file ``ui.yaml``:
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.. code-block:: yaml
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Forms:
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- appConfiguration:
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fields:
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- name: database
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type: com.example.databases.SqlDatabase
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label: Database Server
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description: >-
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Select a database server to host the application`s database
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After that you can choose any database package in a drop-down box.
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The last place, which should be changed in the WordPress package to enable this
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feature, is manifest file. It should contain the full name of SQL Library
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package and optionally packages inherited from SQL library if you want them to
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be downloaded as dependencies. For example:
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.. code-block:: yaml
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Require:
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com.example.databases:
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com.example.databases.MySql:
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com.example.databases.PostgreSql:
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.. note::
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To use this feature you have to enable Glare as a storage for your packages
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and a version of your murano-dashboard should be not older than newton.
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Using application already installed on the image
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Using application already installed on the image
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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