add create and delete namespace to runtime (#1965)

* add create and delete namespace to runtime

* dial down aggressive expiry

* add logging

* fix deletenamespace

* add start of k8s unit tests

* fix workflow

* turn on k8s tests

* ease tight tests

* mkdir in workflow

* dammit -p

* setup folder

runtime/local/local.go

@@ -678,3 +678,13 @@ func Entrypoint(dir string) (string, error) {
 		return "", errors.New("More than one entrypoint found")
 	}
 }
+
+func (r *localRuntime) CreateNamespace(ns string) error {
+	// noop
+	return nil
+}
+
+func (r *localRuntime) DeleteNamespace(ns string) error {
+	// noop
+	return nil
+}