mirror of https://github.com/k3s-io/k3s
72 lines
2.5 KiB
Go
72 lines
2.5 KiB
Go
|
/*
|
||
|
|
Copyright 2018 The Kubernetes Authors.
|
||
|
|
|
||
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
you may not use this file except in compliance with the License.
|
||
|
|
You may obtain a copy of the License at
|
||
|
|
|
||
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
|
||
|
|
Unless required by applicable law or agreed to in writing, software
|
||
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
See the License for the specific language governing permissions and
|
||
|
|
limitations under the License.
|
||
|
|
*/
|
||
|
|
|
||
|
|
package describe
|
||
|
|
|
||
|
|
import (
|
||
|
|
"fmt"
|
||
|
|
"k8s.io/apimachinery/pkg/api/meta"
|
||
|
|
"k8s.io/cli-runtime/pkg/genericclioptions"
|
||
|
|
)
|
||
|
|
|
||
|
|
const (
|
||
|
|
// LoadBalancerWidth is the width how we describe load balancer
|
||
|
|
LoadBalancerWidth = 16
|
||
|
|
|
||
|
|
// LabelNodeRolePrefix is a label prefix for node roles
|
||
|
|
// It's copied over to here until it's merged in core: https://github.com/kubernetes/kubernetes/pull/39112
|
||
|
|
LabelNodeRolePrefix = "node-role.kubernetes.io/"
|
||
|
|
|
||
|
|
// NodeLabelRole specifies the role of a node
|
||
|
|
NodeLabelRole = "kubernetes.io/role"
|
||
|
|
)
|
||
|
|
|
||
|
|
// DescriberFunc gives a way to display the specified RESTMapping type
|
||
|
|
type DescriberFunc func(restClientGetter genericclioptions.RESTClientGetter, mapping *meta.RESTMapping) (Describer, error)
|
||
|
|
|
||
|
|
// Describer generates output for the named resource or an error
|
||
|
|
// if the output could not be generated. Implementers typically
|
||
|
|
// abstract the retrieval of the named object from a remote server.
|
||
|
|
type Describer interface {
|
||
|
|
Describe(namespace, name string, describerSettings DescriberSettings) (output string, err error)
|
||
|
|
}
|
||
|
|
|
||
|
|
// DescriberSettings holds display configuration for each object
|
||
|
|
// describer to control what is printed.
|
||
|
|
type DescriberSettings struct {
|
||
|
|
ShowEvents bool
|
||
|
|
}
|
||
|
|
|
||
|
|
// ObjectDescriber is an interface for displaying arbitrary objects with extra
|
||
|
|
// information. Use when an object is in hand (on disk, or already retrieved).
|
||
|
|
// Implementers may ignore the additional information passed on extra, or use it
|
||
|
|
// by default. ObjectDescribers may return ErrNoDescriber if no suitable describer
|
||
|
|
// is found.
|
||
|
|
type ObjectDescriber interface {
|
||
|
|
DescribeObject(object interface{}, extra ...interface{}) (output string, err error)
|
||
|
|
}
|
||
|
|
|
||
|
|
// ErrNoDescriber is a structured error indicating the provided object or objects
|
||
|
|
// cannot be described.
|
||
|
|
type ErrNoDescriber struct {
|
||
|
|
Types []string
|
||
|
|
}
|
||
|
|
|
||
|
|
// Error implements the error interface.
|
||
|
|
func (e ErrNoDescriber) Error() string {
|
||
|
|
return fmt.Sprintf("no describer has been defined for %v", e.Types)
|
||
|
|
}
|