Custom resource definition

Co-authored-by: Mathieu Lonjaret <mathieu.lonjaret@gmail.com>

provider/kubernetes/namespace.go

@@ -1,32 +0,0 @@
-package kubernetes
-
-import (
-	"fmt"
-	"strings"
-)
-
-// Namespaces holds kubernetes namespaces.
-type Namespaces []string
-
-// Set adds strings elem into the the parser
-// it splits str on , and ;.
-func (ns *Namespaces) Set(str string) error {
-	fargs := func(c rune) bool {
-		return c == ',' || c == ';'
-	}
-	// get function
-	slice := strings.FieldsFunc(str, fargs)
-	*ns = append(*ns, slice...)
-	return nil
-}
-
-// Get []string.
-func (ns *Namespaces) Get() interface{} { return *ns }
-
-// String return slice in a string.
-func (ns *Namespaces) String() string { return fmt.Sprintf("%v", *ns) }
-
-// SetValue sets []string into the parser.
-func (ns *Namespaces) SetValue(val interface{}) {
-	*ns = val.(Namespaces)
-}