108 lines
2.6 KiB
Go
108 lines
2.6 KiB
Go
package dao
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import (
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"context"
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"fmt"
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"github.com/derailed/k9s/internal"
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"github.com/derailed/k9s/internal/client"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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metav1beta1 "k8s.io/apimachinery/pkg/apis/meta/v1beta1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/runtime/serializer"
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"k8s.io/client-go/rest"
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)
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// BOZO!! Figure out how to convert to table def and use factory.
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// Table retrieves K8s resources as tabular data.
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type Table struct {
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Generic
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}
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// Get returns a given resource.
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func (t *Table) Get(ctx context.Context, path string) (runtime.Object, error) {
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a := fmt.Sprintf(gvFmt, metav1beta1.SchemeGroupVersion.Version, metav1beta1.GroupName)
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_, codec := t.codec()
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c, err := t.getClient()
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if err != nil {
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return nil, err
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}
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ns, n := client.Namespaced(path)
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req := c.Get().
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SetHeader("Accept", a).
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Name(n).
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Resource(t.gvr.R()).
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VersionedParams(&metav1beta1.TableOptions{}, codec)
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if ns != client.ClusterScope {
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req = req.Namespace(ns)
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}
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return req.Do(ctx).Get()
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}
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// List all Resources in a given namespace.
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func (t *Table) List(ctx context.Context, ns string) ([]runtime.Object, error) {
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labelSel, ok := ctx.Value(internal.KeyLabels).(string)
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if !ok {
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labelSel = ""
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}
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a := fmt.Sprintf(gvFmt, metav1beta1.SchemeGroupVersion.Version, metav1beta1.GroupName)
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_, codec := t.codec()
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c, err := t.getClient()
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if err != nil {
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return nil, err
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}
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o, err := c.Get().
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SetHeader("Accept", a).
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Namespace(ns).
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Resource(t.gvr.R()).
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VersionedParams(&metav1.ListOptions{LabelSelector: labelSel}, codec).
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Do(ctx).Get()
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if err != nil {
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return nil, err
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}
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return []runtime.Object{o}, nil
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}
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// ----------------------------------------------------------------------------
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// Helpers...
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const gvFmt = "application/json;as=Table;v=%s;g=%s, application/json"
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func (t *Table) getClient() (*rest.RESTClient, error) {
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cfg, err := t.Client().RestConfig()
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if err != nil {
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return nil, err
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}
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gv := t.gvr.GV()
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cfg.GroupVersion = &gv
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cfg.APIPath = "/apis"
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if t.gvr.G() == "" {
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cfg.APIPath = "/api"
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}
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codec, _ := t.codec()
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cfg.NegotiatedSerializer = codec.WithoutConversion()
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crRestClient, err := rest.RESTClientFor(cfg)
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if err != nil {
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return nil, err
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}
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return crRestClient, nil
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}
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func (t *Table) codec() (serializer.CodecFactory, runtime.ParameterCodec) {
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scheme := runtime.NewScheme()
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gv := t.gvr.GV()
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metav1.AddToGroupVersion(scheme, gv)
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scheme.AddKnownTypes(gv, &metav1beta1.Table{}, &metav1beta1.TableOptions{})
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scheme.AddKnownTypes(metav1beta1.SchemeGroupVersion, &metav1beta1.Table{}, &metav1beta1.TableOptions{})
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return serializer.NewCodecFactory(scheme), runtime.NewParameterCodec(scheme)
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}
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