Creating Blueprints

A blueprint is a model of the application’s topology and its operations implementation.

Managing the Blueprint Canvas

You add and move node types on the canvas using drag and drop actions. The buttons on the top right of the canvas assist you in creating and viewing the topology.

zoom in button Enables you to zoom in.

zoom out button Enables you to zoom out.

center map button Enables you to center the topology.

drag canvas mode Enables you to switch to drag canvas mode.

drag to select mode Enables you to switch to drag to select mode.

create node group Enables you to group the nodes that you selected.

Using and Managing Stencils

Cloudify Composer includes built-in node types, but you can also import your own. Click the Plugins node from Project View pane and select one of the following options:

After you have imported a stencil plugin, it appears in the Plugins list. The imported node types appear in your Stencils catalog. Each type is displayed with an icon that is derived from its parent type.

Adding Nodes to a Blueprint

Select the node type that you require to add to the blueprint and drag it from the Stencil catalog to the canvas.

Cloudify Composer only allows you to perform valid actions.

Editing a Node

Double-click the node to display the node property panel. It includes the following components:

To close the panel, press Esc or click the close window icon on the top-right corner.

Node Relationships

To define a relationships between nodes, where the connector icon is displayed, draw a connecting line from the edge of one node type to the edge of another. Note that the connector icons show either relationships in or relationships out of a node type.
You can pull the relationship line so that it is displayed in the topology according to your preferences.

Double-click a relationship to display its properties for editing and configuring the relationship parameters.

Network Types

Source View

Source view provides a representation of the generated TOSCA code behind the application modeling. To open source view expand Resources node and select your blueprint’s main blueprint file.

Topology Source Code

It works two ways:

  1. Allows to see the currently generated blueprint based on all of the user inputs:

    • TOSCA definitions version
    • imports
    • blueprint description
    • inputs and outputs
    • custom node/relationship types created by user
    • nodes added to topology, including their properties, interfaces, network configuration and relationships between nodes
  2. Provides a possibility to edit or paste the blueprint source code directly. Composer will parse it and reflect in the UI accordingly.

To save a modified source press the Save Source button in the top right corner of the editor. Composer will then run a 2-step validation:

  1. Syntax of your source code
  2. Cloudify DSL rules validation

To switch to topology view press the Switch to Topology view button in the top right corner of the editor. Please note this button is available only for main blueprint file and is absent for other files.

Warning

If you write some illegal code, it will either not be reflected in the topology and anywhere in the Composer or will throw an error.