k9s/internal/resource/crd.go

113 lines
2.9 KiB
Go

package resource
import (
"time"
"github.com/derailed/k9s/internal/k8s"
"github.com/rs/zerolog/log"
yaml "gopkg.in/yaml.v2"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
)
// CustomResourceDefinition tracks a kubernetes resource.
type CustomResourceDefinition struct {
*Base
instance *unstructured.Unstructured
}
// NewCustomResourceDefinitionList returns a new resource list.
func NewCustomResourceDefinitionList(c Connection, ns string) List {
return NewList(
NotNamespaced,
"crd",
NewCustomResourceDefinition(c),
CRUDAccess|DescribeAccess,
)
}
// NewCustomResourceDefinition instantiates a new CustomResourceDefinition.
func NewCustomResourceDefinition(c Connection) *CustomResourceDefinition {
crd := &CustomResourceDefinition{&Base{Connection: c, Resource: k8s.NewCustomResourceDefinition(c)}, nil}
crd.Factory = crd
return crd
}
// New builds a new CustomResourceDefinition instance from a k8s resource.
func (r *CustomResourceDefinition) New(i interface{}) Columnar {
c := NewCustomResourceDefinition(r.Connection)
switch instance := i.(type) {
case *unstructured.Unstructured:
c.instance = instance
case unstructured.Unstructured:
c.instance = &instance
default:
log.Fatal().Msgf("unknown CustomResourceDefinition type %#v", i)
}
meta := c.instance.Object["metadata"].(map[string]interface{})
c.path = meta["name"].(string)
return c
}
// Marshal a resource.
func (r *CustomResourceDefinition) Marshal(path string) (string, error) {
ns, n := namespaced(path)
i, err := r.Resource.Get(ns, n)
if err != nil {
return "", err
}
raw, err := yaml.Marshal(i)
if err != nil {
return "", err
}
// BOZO!! Need to figure out apiGroup+Version
// return r.marshalObject(i.(*unstructured.Unstructured))
return string(raw), nil
}
// Header return the resource header.
func (*CustomResourceDefinition) Header(ns string) Row {
return Row{"NAME", "AGE"}
}
// Fields retrieves displayable fields.
func (r *CustomResourceDefinition) Fields(ns string) Row {
ff := make(Row, 0, len(r.Header(ns)))
i := r.instance
meta := i.Object["metadata"].(map[string]interface{})
t, err := time.Parse(time.RFC3339, meta["creationTimestamp"].(string))
if err != nil {
log.Error().Msgf("Fields timestamp %v", err)
}
return append(ff, meta["name"].(string), toAge(metav1.Time{t}))
}
// ExtFields returns extended fields.
func (r *CustomResourceDefinition) ExtFields() Properties {
var (
pp = Properties{}
i = r.instance
)
if spec, ok := i.Object["spec"].(map[string]interface{}); ok {
if meta, ok := i.Object["metadata"].(map[string]interface{}); ok {
pp["name"] = meta["name"]
}
pp["group"], pp["version"] = spec["group"], spec["version"]
if names, ok := spec["names"].(map[string]interface{}); ok {
pp["kind"] = names["kind"]
pp["singular"], pp["plural"] = names["singular"], names["plural"]
pp["aliases"] = names["shortNames"]
}
}
return pp
}