129 lines
2.5 KiB
Go
129 lines
2.5 KiB
Go
package render
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import (
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"fmt"
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"strings"
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"github.com/derailed/k9s/internal/client"
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"github.com/gdamore/tcell/v2"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/runtime/schema"
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)
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// Forwarder represents a port forwarder.
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type Forwarder interface {
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// ID returns the PF FQN.
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ID() string
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// Container returns a container name.
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Container() string
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// Ports returns container exposed ports.
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Port() string
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// Active returns forwarder current state.
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Active() bool
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// Age returns forwarder age.
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Age() string
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}
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// PortForward renders a portforwards to screen.
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type PortForward struct {
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Base
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}
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// ColorerFunc colors a resource row.
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func (PortForward) ColorerFunc() ColorerFunc {
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return func(ns string, _ Header, re RowEvent) tcell.Color {
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return tcell.ColorSkyblue
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}
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}
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// Header returns a header row.
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func (PortForward) Header(ns string) Header {
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return Header{
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HeaderColumn{Name: "NAMESPACE"},
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HeaderColumn{Name: "NAME"},
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HeaderColumn{Name: "CONTAINER"},
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HeaderColumn{Name: "PORTS"},
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HeaderColumn{Name: "URL"},
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HeaderColumn{Name: "C"},
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HeaderColumn{Name: "N"},
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HeaderColumn{Name: "VALID", Wide: true},
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HeaderColumn{Name: "AGE", Time: true},
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}
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}
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// Render renders a K8s resource to screen.
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func (f PortForward) Render(o interface{}, gvr string, r *Row) error {
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pf, ok := o.(ForwardRes)
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if !ok {
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return fmt.Errorf("expecting a ForwardRes but got %T", o)
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}
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ports := strings.Split(pf.Port(), ":")
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r.ID = pf.ID()
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ns, n := client.Namespaced(r.ID)
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r.Fields = Fields{
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ns,
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trimContainer(n),
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pf.Container(),
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pf.Port(),
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UrlFor(pf.Config.Host, pf.Config.Path, ports[0]),
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AsThousands(int64(pf.Config.C)),
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AsThousands(int64(pf.Config.N)),
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"",
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pf.Age(),
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}
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return nil
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}
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// Helpers...
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func trimContainer(n string) string {
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tokens := strings.Split(n, "|")
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if len(tokens) == 0 {
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return n
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}
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_, name := client.Namespaced(tokens[0])
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return name
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}
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// UrlFor computes fq url for a given benchmark configuration.
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func UrlFor(host, path, port string) string {
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if host == "" {
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host = "localhost"
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}
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if path == "" {
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path = "/"
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}
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return "http://" + host + ":" + port + path
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}
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// BenchCfg represents a benchmark configuration.
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type BenchCfg struct {
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C, N int
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Host, Path string
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}
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// ForwardRes represents a benchmark resource.
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type ForwardRes struct {
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Forwarder
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Config BenchCfg
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}
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// GetObjectKind returns a schema object.
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func (f ForwardRes) GetObjectKind() schema.ObjectKind {
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return nil
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}
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// DeepCopyObject returns a container copy.
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func (f ForwardRes) DeepCopyObject() runtime.Object {
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return f
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}
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