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resource.go
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resource.go
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package core
import (
"github.com/viant/endly"
"github.com/viant/toolbox"
"github.com/viant/toolbox/data"
"github.com/viant/toolbox/url"
"gopkg.in/yaml.v2"
"k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"path"
"strings"
)
func ProcessResource(context *endly.Context, expand bool, resource *url.Resource, reverse bool, handler func(meta *ResourceMeta, data map[string]interface{}) error) error {
resource, err := context.ExpandResource(resource)
if err != nil {
return err
}
state := context.State()
meta := &ResourceMeta{}
var data = make(map[string]interface{})
ext := path.Ext(resource.URL)
if ext == ".json" {
if err = resource.Decode(&data); err != nil {
return err
}
if expand {
data = toolbox.AsMap(state.Expand(data))
}
if err = converter.AssignConverted(meta, data); err == nil {
err = handler(meta, data)
}
return err
}
text, err := resource.DownloadText()
if err != nil {
return err
}
if expand {
text = state.ExpandAsText(text)
}
docs := strings.Split(text, "---\n")
if len(docs) == 0 {
return nil
}
if reverse {
for i := len(docs) - 1; i >= 0; i-- {
if err = handleResource(docs[i], expand, state, data, handler); err != nil {
return err
}
}
return nil
}
for _, doc := range docs {
if err = handleResource(doc, expand, state, data, handler); err != nil {
return err
}
}
return nil
}
func handleResource(doc string, expand bool, state data.Map, data map[string]interface{}, handler func(meta *ResourceMeta, data map[string]interface{}) error) error {
var meta = &ResourceMeta{}
if err := yaml.Unmarshal([]byte(doc), &data); err != nil {
return err
}
normalized, err := toolbox.NormalizeKVPairs(data)
if err == nil {
data = toolbox.AsMap(normalized)
}
if expand {
data = toolbox.AsMap(state.Expand(data))
}
if err = converter.AssignConverted(meta, data); err == nil && len(data) > 0 {
err = handler(meta, data)
}
return err
}
//ResourceMeta represents a k8 resource meta
type ResourceMeta struct {
metav1.TypeMeta
Metadata metav1.ObjectMeta `json:"metadata,omitempty" protobuf:"bytes,1,opt,name=metadata"`
}
// ResourceCondition contains details for the current condition
type ResourceCondition struct {
Type string
Status string
Reason string
Message string
}
type ResourceStatus struct {
Conditions []ResourceCondition
PublishNotReadyAddresses *bool
}
//ResourceInfo represents generic resource info
type ResourceInfo struct {
metav1.TypeMeta `yaml:",inline"`
metav1.ObjectMeta `yaml:"metadata"`
Spec interface{}
Status interface{}
Raw interface{} `yaml:"-"`
}
func (i *ResourceInfo) ResourceStatus() *ResourceStatus {
var status = &ResourceStatus{}
if i.Status != nil {
_ = converter.AssignConverted(status, i.Status)
}
return status
}
func (i *ResourceInfo) ContainerPorts() []v1.ContainerPort {
containers := i.Containers()
if len(containers) == 0 {
return nil
}
return containers[0].Ports
}
func (i *ResourceInfo) Containers() []v1.Container {
if i.Spec == nil {
return nil
}
specMap := data.Map(toolbox.AsMap(i.Spec))
containersValue, ok := specMap.GetValue("template.spec.containers")
if !ok {
return nil
}
var containers = make([]v1.Container, 0)
_ = converter.AssignConverted(&containers, containersValue)
return containers
}
func (i *ResourceInfo) IsReady() bool {
if i.Status == nil {
return false
}
status := i.ResourceStatus()
if status.PublishNotReadyAddresses != nil {
return !*status.PublishNotReadyAddresses
}
if len(status.Conditions) == 0 {
return false
}
for _, condition := range status.Conditions {
if condition.Status == "False" {
return false
}
}
return true
}
//ResourcesMetaInfo represents resource meta info
type ResourcesMetaInfo struct {
*ResourceMeta `json:"metadata,omitempty" yaml:"metadata,omitempty"`
Items []*ResourceMeta `json:"items,omitempty" yaml:"items,omitempty"`
}
//ToResourceMetas converts *ResourceInfo slice to []*ResourceMeta
func ToResourceMetas(items []*ResourceInfo) *ResourcesMetaInfo {
var result = &ResourcesMetaInfo{
Items: make([]*ResourceMeta, 0),
}
switch len(items) {
case 0:
case 1:
result.ResourceMeta = &ResourceMeta{TypeMeta: items[0].TypeMeta, Metadata: items[0].ObjectMeta}
default:
for _, item := range items {
result.Items = append(result.Items, &ResourceMeta{TypeMeta: item.TypeMeta, Metadata: item.ObjectMeta})
}
result.ResourceMeta = nil
}
return result
}