printctlr

Documentation

Index

• type Controller
  • func (c Controller) ResourceAdded(r *unstructured.Unstructured)
  • func (c Controller) ResourceDeleted(r *unstructured.Unstructured)
  • func (c Controller) ResourceUpdated(oldR, newR *unstructured.Unstructured)

Examples

• Controller.ResourceAdded
• Controller.ResourceDeleted
• Controller.ResourceUpdated

Types

type Controller

type Controller struct{}

Controller provides a crwatcher.ResourceController that prints the events out as the are received. It is a basic implementation that can be used for debugging. It also serves as an example for how you could implement your own crwatcher.ResourceController.

func (Controller) ResourceAdded

func (c Controller) ResourceAdded(r *unstructured.Unstructured)

ResourceAdded will receive a custom resource when it is created and print that the CR was added

Example

r := &unstructured.Unstructured{
	Object: map[string]interface{}{
		"metadata": map[string]interface{}{
			"name": "Thing1",
		},
	},
}

Controller{}.ResourceAdded(r)

Output:

CR added: Thing1

func (Controller) ResourceDeleted

func (c Controller) ResourceDeleted(r *unstructured.Unstructured)

ResourceDeleted will receive a custom resource when it is deleted and print that the CR was deleted

Example

r := &unstructured.Unstructured{
	Object: map[string]interface{}{
		"metadata": map[string]interface{}{
			"name": "Thing1",
		},
	},
}

Controller{}.ResourceDeleted(r)

Output:

CR deleted: Thing1

func (Controller) ResourceUpdated

func (c Controller) ResourceUpdated(oldR, newR *unstructured.Unstructured)

ResourceUpdated receives both an the old version and current version of a custom resource and will print out the the custom resource was changed

Example

oldR := &unstructured.Unstructured{
	Object: map[string]interface{}{
		"metadata": map[string]interface{}{
			"name": "Thing1",
		},
	},
}
newR := &unstructured.Unstructured{
	Object: map[string]interface{}{
		"metadata": map[string]interface{}{
			"name": "Thing2",
		},
	},
}

Controller{}.ResourceUpdated(oldR, newR)

Output:

CR changed: Thing2