You can group multiple workflow parameters that are connected logically in a new type that is called a composite type. You can use a Foreach element to bind a group of parameters as a composite value to connect several arrays of parameters in a single array.

Before you begin

  • Open a workflow for editing in the workflow editor.

  • Verify that you have a Foreach element in your workflow.


  1. Select the IN or the OUT tab of the Foreach element.
  2. Select a local parameter that you want to group with other local parameters in a composite type.
  3. Click Bind a group of parameters as composite value at the top of the IN or the OUT tab.
  4. In the Bindings pane, select the parameters that you want to group as a composite type.
  5. Select Bind as iterator.

    You have set the Foreach element to iterate over an array of the composite type.

  6. Click Accept.


You defined a composite type and made sure that the workflow will iterate over an array of this composite type. Parameters that are grouped as a composite type are named composite_type_name.parameter_name. For example, if you create a snapshots composite type, the parameters that are group in the type can be snapshots.vm[in-parameter] or[in-parameter]. Every element from the array of the composite type contains a single instance of every parameter that you grouped in the composite type.

Rename Virtual Machines

Suppose that you want to rename 10 virtual machines at a time. For this, you insert a Foreach element in a workflow and select the Rename virtual machine workflow in the element. You create a composite type to connect the vm and the newName parameters explicitly. You bind the composite type as an iterator, thus creating a single array that contains both the vm and the newName parameter.