ContourDeploymentPodSelector returns a label selector using "app: contour" as the key/value pair.

CurrentDeployment returns the Deployment resource for the provided contour.

DesiredDeployment returns the desired deployment for the provided contour using image as Contour's container image.

EnsureDeployment ensures a deployment using image exists for the given contour.

EnsureDeploymentDeleted ensures the deployment for the provided contour is deleted if Contour owner labels exist.