92 lines
2.2 KiB
Go
92 lines
2.2 KiB
Go
// SPDX-License-Identifier: Apache-2.0
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// Copyright Authors of K9s
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package xray
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import (
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"context"
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"fmt"
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"strings"
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"github.com/derailed/k9s/internal"
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"github.com/derailed/k9s/internal/client"
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"github.com/derailed/k9s/internal/dao"
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"github.com/derailed/k9s/internal/render"
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v1 "k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
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"k8s.io/apimachinery/pkg/labels"
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"k8s.io/apimachinery/pkg/runtime"
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)
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// Service represents an xray renderer.
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type Service struct{}
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// Render renders an xray node.
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func (s *Service) Render(ctx context.Context, ns string, o any) error {
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raw, ok := o.(*unstructured.Unstructured)
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if !ok {
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return fmt.Errorf("expected Unstructured, but got %T", o)
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}
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var svc v1.Service
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err := runtime.DefaultUnstructuredConverter.FromUnstructured(raw.Object, &svc)
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if err != nil {
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return err
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}
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parent, ok := ctx.Value(KeyParent).(*TreeNode)
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if !ok {
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return fmt.Errorf("expecting a TreeNode but got %T", ctx.Value(KeyParent))
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}
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root := NewTreeNode(client.SvcGVR, client.FQN(svc.Namespace, svc.Name))
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oo, err := s.locatePods(ctx, svc.Namespace, svc.Spec.Selector)
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if err != nil {
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return err
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}
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ctx = context.WithValue(ctx, KeyParent, root)
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var re Pod
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for _, o := range oo {
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p, ok := o.(*unstructured.Unstructured)
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if !ok {
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return fmt.Errorf("expecting *Unstructured but got %T", o)
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}
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if err := re.Render(ctx, ns, &render.PodWithMetrics{Raw: p}); err != nil {
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return err
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}
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}
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root.Extras[StatusKey] = OkStatus
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if root.IsLeaf() {
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return nil
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}
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gvr, nsID := client.NsGVR, client.FQN(client.ClusterScope, svc.Namespace)
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nsn := parent.Find(gvr, nsID)
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if nsn == nil {
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nsn = NewTreeNode(gvr, nsID)
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parent.Add(nsn)
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}
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nsn.Add(root)
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return nil
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}
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func (s *Service) locatePods(ctx context.Context, ns string, sel map[string]string) ([]runtime.Object, error) {
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f, ok := ctx.Value(internal.KeyFactory).(dao.Factory)
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if !ok {
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return nil, fmt.Errorf("expecting a factory but got %T", ctx.Value(internal.KeyFactory))
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}
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ll := make([]string, 0, len(sel))
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for k, v := range sel {
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ll = append(ll, fmt.Sprintf("%s=%s", k, v))
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}
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fsel, err := labels.ConvertSelectorToLabelsMap(strings.Join(ll, ","))
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if err != nil {
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return nil, err
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}
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return f.List(client.PodGVR, ns, false, fsel.AsSelector())
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}
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