79 lines
2.2 KiB
Go
79 lines
2.2 KiB
Go
package k8sutil
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import (
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"fmt"
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"time"
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apierrors "k8s.io/apimachinery/pkg/api/errors"
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meta_v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/runtime/schema"
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"k8s.io/apimachinery/pkg/runtime/serializer"
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"k8s.io/client-go/kubernetes"
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"k8s.io/client-go/pkg/api"
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"k8s.io/client-go/rest"
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"k8s.io/client-go/tools/clientcmd"
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"github.com/zalando-incubator/postgres-operator/pkg/spec"
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"github.com/zalando-incubator/postgres-operator/pkg/util/constants"
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"github.com/zalando-incubator/postgres-operator/pkg/util/retryutil"
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)
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func RestConfig(kubeConfig string, outOfCluster bool) (*rest.Config, error) {
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if outOfCluster {
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return clientcmd.BuildConfigFromFlags("", kubeConfig)
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}
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return rest.InClusterConfig()
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}
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func KubernetesClient(config *rest.Config) (client *kubernetes.Clientset, err error) {
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return kubernetes.NewForConfig(config)
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}
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func ResourceAlreadyExists(err error) bool {
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return apierrors.IsAlreadyExists(err)
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}
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func ResourceNotFound(err error) bool {
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return apierrors.IsNotFound(err)
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}
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func KubernetesRestClient(c *rest.Config) (rest.Interface, error) {
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c.GroupVersion = &schema.GroupVersion{Version: constants.K8sVersion}
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c.APIPath = constants.K8sAPIPath
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c.NegotiatedSerializer = serializer.DirectCodecFactory{CodecFactory: api.Codecs}
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schemeBuilder := runtime.NewSchemeBuilder(
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func(scheme *runtime.Scheme) error {
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scheme.AddKnownTypes(
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schema.GroupVersion{
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Group: constants.TPRVendor,
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Version: constants.TPRApiVersion,
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},
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&spec.Postgresql{},
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&spec.PostgresqlList{},
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&meta_v1.ListOptions{},
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&meta_v1.DeleteOptions{},
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)
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return nil
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})
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if err := schemeBuilder.AddToScheme(api.Scheme); err != nil {
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return nil, fmt.Errorf("could not apply functions to register PostgreSQL TPR type: %v", err)
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}
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return rest.RESTClientFor(c)
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}
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func WaitTPRReady(restclient rest.Interface, interval, timeout time.Duration, ns string) error {
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return retryutil.Retry(interval, timeout, func() (bool, error) {
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_, err := restclient.Get().RequestURI(fmt.Sprintf(constants.ListClustersURITemplate, ns)).DoRaw()
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if err != nil {
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if ResourceNotFound(err) { // not set up yet. wait more.
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return false, nil
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}
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return false, err
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}
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return true, nil
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})
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}
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