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metadata.go
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metadata.go
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package main
import "C"
import (
"fmt"
"github.com/replicatedhq/kots/pkg/upstream"
kuberneteserrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/kubernetes"
"sigs.k8s.io/controller-runtime/pkg/client/config"
)
//export ReadMetadata
func ReadMetadata(namespace string) *C.char {
cfg, err := config.GetConfig()
if err != nil {
fmt.Printf("error getting kubernetes config: %s\n", err.Error())
return C.CString(upstream.DefaultMetadata)
}
clientset, err := kubernetes.NewForConfig(cfg)
if err != nil {
fmt.Printf("error creating kubernetes clientset: %s\n", err.Error())
return C.CString(upstream.DefaultMetadata)
}
configMap, err := clientset.CoreV1().ConfigMaps(namespace).Get("kotsadm-application-metadata", metav1.GetOptions{})
if err != nil {
if kuberneteserrors.IsNotFound(err) {
return C.CString(upstream.DefaultMetadata)
}
fmt.Printf("error reading branding: %s\n", err.Error())
return C.CString(upstream.DefaultMetadata)
}
data, ok := configMap.Data["application.yaml"]
if !ok {
fmt.Printf("metdata did not contain required key: %#v\n", configMap.Data)
return C.CString(upstream.DefaultMetadata)
}
return C.CString(data)
}
//export RemoveMetadata
func RemoveMetadata(namespace string) int {
cfg, err := config.GetConfig()
if err != nil {
fmt.Printf("error getting kubernetes config: %s\n", err.Error())
return -1
}
clientset, err := kubernetes.NewForConfig(cfg)
if err != nil {
fmt.Printf("error creating kubernetes clientset: %s\n", err.Error())
return -1
}
_, err = clientset.CoreV1().ConfigMaps(namespace).Get("kotsadm-application-metadata", metav1.GetOptions{})
if err != nil {
if kuberneteserrors.IsNotFound(err) {
return 0
}
fmt.Printf("error reading branding: %s\n", err.Error())
return -1
}
err = clientset.CoreV1().ConfigMaps(namespace).Delete("kotsadm-application-metadata", &metav1.DeleteOptions{})
if err != nil {
fmt.Printf("error deleting metadata: %s\n", err.Error())
return -1
}
return 0
}