client

type Client interface {
	Reader
	Writer
	StatusClient
}

type DelegatingClient struct {
	Reader
	Writer
	StatusClient
}

type FieldIndexer interface {
	// IndexFields adds an index with the given field name on the given object type
	// by using the given function to extract the value for that field.  If you want
	// compatibility with the Kubernetes API server, only return one key, and only use
	// fields that the API server supports.  Otherwise, you can return multiple keys,
	// and "equality" in the field selector means that at least one key matches the value.
	IndexField(obj runtime.Object, field string, extractValue IndexerFunc) error
}

type IndexerFunc func(runtime.Object) []string

type ListOptions struct {
	// LabelSelector filters results by label.  Use SetLabelSelector to
	// set from raw string form.
	LabelSelector labels.Selector
	// FieldSelector filters results by a particular field.  In order
	// to use this with cache-based implementations, restrict usage to
	// a single field-value pair that's been added to the indexers.
	FieldSelector fields.Selector

	// Namespace represents the namespace to list for, or empty for
	// non-namespaced objects, or to list across all namespaces.
	Namespace string

	// Raw represents raw ListOptions, as passed to the API server.  Note
	// that these may not be respected by all implementations of interface,
	// and the LabelSelector and FieldSelector fields are ignored.
	Raw *metav1.ListOptions
}

type ObjectKey = types.NamespacedName

type Options struct {
	// Scheme, if provided, will be used to map go structs to GroupVersionKinds
	Scheme *runtime.Scheme

	// Mapper, if provided, will be used to map GroupVersionKinds to Resources
	Mapper meta.RESTMapper
}

type Reader interface {
	// Get retrieves an obj for the given object key from the Kubernetes Cluster.
	// obj must be a struct pointer so that obj can be updated with the response
	// returned by the Server.
	Get(ctx context.Context, key ObjectKey, obj runtime.Object) error

	// List retrieves list of objects for a given namespace and list options. On a
	// successful call, Items field in the list will be populated with the
	// result returned from the server.
	List(ctx context.Context, opts *ListOptions, list runtime.Object) error
}

type StatusClient interface {
	Status() StatusWriter
}

type StatusWriter interface {
	// Update updates the fields corresponding to the status subresource for the
	// given obj. obj must be a struct pointer so that obj can be updated
	// with the content returned by the Server.
	Update(ctx context.Context, obj runtime.Object) error
}

type Writer interface {
	// Create saves the object obj in the Kubernetes cluster.
	Create(ctx context.Context, obj runtime.Object) error

	// Delete deletes the given obj from Kubernetes cluster.
	Delete(ctx context.Context, obj runtime.Object) error

	// Update updates the given obj in the Kubernetes cluster. obj must be a
	// struct pointer so that obj can be updated with the content returned by the Server.
	Update(ctx context.Context, obj runtime.Object) error
}