anchor.diff:   registryNamespace: pmacik
   ----
   .. Click *Create* to create the `OperatorSource` in your cluster.
  -. Install the *PostgreSQL Database* Operator:
  -.. In the *Administrator* perspective of the console, navigate to the *Operators -> OperatorHub*.
  +. Install the Red Hat-provided *PostgreSQL Database* Operator:
  +.. In the *Administrator* perspective of the console, navigate to *Operators -> OperatorHub*.
   .. In the *Database* category, select the *PostgreSQL Database* Operator and install it.
   . Create a database (DB) instance for the application:
   .. Switch to the *Developer* perspective and ensure that you are in the appropriate project.
  
positive.code: 
  In addition to grouping multiple components within an application, you can also use the *Topology* view to connect components with each other. You can either use a binding connector or a visual one to connect components.
  
  When an application is connected to a service using a binding connector a `ServiceBindingRequest` is created with the necessary binding data. After the request is successful, the application is redeployed. A binding connection between the components can be established only if the target node is an Operator-backed service. This is indicated by the *Create a binding connector* tool-tip which appears when you drag an arrow to such a target node.
  
  A visual connector establishes only a visual connection between the components, depicting an intent to connect. No interaction between the components is established. If the target node is not a binding Operator-backed service the *Create a visual connector* tool-tip is displayed when you drag an arrow to a target node.
  
  == Creating a visual connection between components
  
  You can connect a MongoDB service with a Node.js application visually as follows:
  
  .Prerequisites
  
  
negative.code: A DB instance is now deployed in the *Topology* view.
  
  . In the *Topology* view, hover over the Node.js component to see a dangling arrow on the node.
  . Click and drag the arrow towards the *db-demo-postgresql* service to make a binding connection with the Node.js application. A `ServiceBindingRequest` is created and the *Service Binding Operator* controller injects the DB connection information into the application `Deployment` as environment variables. After the request is successful, the application is redeployed and the connection is established.
  +
  image::odc-binding-connector.png[Binding Connector]
  