k9s/internal/render/ofaas.go

111 lines
2.6 KiB
Go

package render
import (
"errors"
"fmt"
"strconv"
"time"
"github.com/derailed/k9s/internal/client"
"github.com/derailed/tview"
"github.com/gdamore/tcell/v2"
ofaas "github.com/openfaas/faas-provider/types"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
)
const (
fnStatusReady = "Ready"
fnStatusNotReady = "Not Ready"
)
// OpenFaas renders an openfaas function to screen.
type OpenFaas struct{}
// ColorerFunc colors a resource row.
func (o OpenFaas) ColorerFunc() ColorerFunc {
return func(ns string, h Header, re RowEvent) tcell.Color {
if !Happy(ns, h, re.Row) {
return ErrColor
}
return tcell.ColorPaleTurquoise
}
}
// Header returns a header row.
func (OpenFaas) Header(ns string) Header {
return Header{
HeaderColumn{Name: "NAMESPACE"},
HeaderColumn{Name: "NAME"},
HeaderColumn{Name: "STATUS"},
HeaderColumn{Name: "IMAGE"},
HeaderColumn{Name: "LABELS"},
HeaderColumn{Name: "INVOCATIONS", Align: tview.AlignRight},
HeaderColumn{Name: "REPLICAS", Align: tview.AlignRight},
HeaderColumn{Name: "AVAILABLE", Align: tview.AlignRight},
HeaderColumn{Name: "VALID", Wide: true},
HeaderColumn{Name: "AGE", Time: true, Decorator: AgeDecorator},
}
}
// Render renders a chart to screen.
func (o OpenFaas) Render(i interface{}, ns string, r *Row) error {
fn, ok := i.(OpenFaasRes)
if !ok {
return fmt.Errorf("expected OpenFaasRes, but got %T", o)
}
var labels string
if fn.Function.Labels != nil {
labels = mapToStr(*fn.Function.Labels)
}
var status = fnStatusReady
if fn.Function.AvailableReplicas == 0 {
status = fnStatusNotReady
}
r.ID = client.FQN(fn.Function.Namespace, fn.Function.Name)
r.Fields = Fields{
fn.Function.Namespace,
fn.Function.Name,
status,
fn.Function.Image,
labels,
strconv.Itoa(int(fn.Function.InvocationCount)),
strconv.Itoa(int(fn.Function.Replicas)),
strconv.Itoa(int(fn.Function.AvailableReplicas)),
asStatus(o.diagnose(status)),
toAge(metav1.Time{Time: time.Now()}),
}
return nil
}
func (OpenFaas) diagnose(status string) error {
if status != "Ready" {
return errors.New("function not ready")
}
return nil
}
// ----------------------------------------------------------------------------
// Helpers...
// OpenFaasRes represents an openfaas function resource.
type OpenFaasRes struct {
Function ofaas.FunctionStatus `json:"function"`
}
// GetObjectKind returns a schema object.
func (OpenFaasRes) GetObjectKind() schema.ObjectKind {
return nil
}
// DeepCopyObject returns a container copy.
func (h OpenFaasRes) DeepCopyObject() runtime.Object {
return h
}