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metadata_generator.go
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/
metadata_generator.go
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package k8s
import (
"github.com/kudoh/concourse-k8s-resource/pkg/models"
"k8s.io/client-go/kubernetes"
"log"
"strconv"
)
func GenerateMetadatas(source *models.Source, clientset kubernetes.Interface) ([]models.Metadata, error) {
var metas []MetadataReader
for _, resource := range source.WatchResources {
switch {
case IsDeployment(resource.Kind):
reader, err := NewDeploymentReader(clientset, source.Namespace, resource.Name)
if err != nil {
return nil, err
}
metas = append(metas, reader)
case IsStatefulSet(resource.Kind):
reader, err := NewStatefulSetReader(clientset, source.Namespace, resource.Name)
if err != nil {
return nil, err
}
metas = append(metas, reader)
default:
log.Fatalln("unsupported resource kind", resource.Kind)
}
}
return toMetadatas(metas), nil
}
func toMetadatas(readers []MetadataReader) []models.Metadata {
var resp []models.Metadata
for _, reader := range readers {
meta := reader.GetObjectMeta()
revision, err := reader.GetRevision()
if err != nil {
revision = -1
}
converted := []models.Metadata{
{Name: "name", Value: meta.Name},
{Name: "namespace", Value: meta.Namespace},
{Name: "resource_version", Value: meta.ResourceVersion},
{Name: "uid", Value: string(meta.UID)},
{Name: "creation_timestamp", Value: meta.CreationTimestamp.String()},
{Name: "revision", Value: strconv.FormatInt(revision, 10)},
}
resp = append(resp, converted...)
}
return resp
}