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cli: add status cmd

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The new command allows checking the status of an upgrade
and which versions are installed.
Also remove the unused restclient.
And make GetConstellationVersion a function.
This commit is contained in:
Otto Bittner 2023-03-24 11:51:18 +01:00
parent 93e55d2f78
commit c8c2953d7b
19 changed files with 707 additions and 835 deletions
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49
internal/kubernetes/kubectl/kubectl.go
View file

@ -22,7 +22,6 @@ import (
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/apimachinery/pkg/runtime/serializer"
"k8s.io/cli-runtime/pkg/resource"
"k8s.io/client-go/dynamic"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/scale/scheme"
@ -35,7 +34,6 @@ type Kubectl struct {
kubernetes.Interface
dynamicClient dynamic.Interface
apiextensionClient apiextensionsclientv1.ApiextensionsV1Interface
builder *resource.Builder
}
// New returns an empty Kubectl client. Need to call Initialize before usable.
@ -67,12 +65,6 @@ func (k *Kubectl) Initialize(kubeconfig []byte) error {
}
k.apiextensionClient = apiextensionClient
restClientGetter, err := newRESTClientGetter(kubeconfig)
if err != nil {
return fmt.Errorf("creating k8s RESTClientGetter from kubeconfig: %w", err)
}
k.builder = resource.NewBuilder(restClientGetter).Unstructured()
return nil
}
@ -92,22 +84,6 @@ func (k *Kubectl) ApplyCRD(ctx context.Context, rawCRD []byte) error {
return err
}
// parseCRD takes a byte slice of data and tries to create a CustomResourceDefinition object from it.
func parseCRD(crdString []byte) (*v1.CustomResourceDefinition, error) {
sch := runtime.NewScheme()
_ = scheme.AddToScheme(sch)
_ = v1.AddToScheme(sch)
obj, groupVersionKind, err := serializer.NewCodecFactory(sch).UniversalDeserializer().Decode(crdString, nil, nil)
if err != nil {
return nil, fmt.Errorf("decoding crd: %w", err)
}
if groupVersionKind.Kind == "CustomResourceDefinition" {
return obj.(*v1.CustomResourceDefinition), nil
}
return nil, errors.New("parsed []byte, but did not find a CRD")
}
// GetCRDs retrieves all custom resource definitions currently installed in the cluster.
func (k *Kubectl) GetCRDs(ctx context.Context) ([]apiextensionsv1.CustomResourceDefinition, error) {
crds, err := k.apiextensionClient.CustomResourceDefinitions().List(ctx, metav1.ListOptions{})
@ -159,6 +135,15 @@ func (k *Kubectl) ListAllNamespaces(ctx context.Context) (*corev1.NamespaceList,
return k.CoreV1().Namespaces().List(ctx, metav1.ListOptions{})
}
// GetNodes returns all nodes in the cluster.
func (k *Kubectl) GetNodes(ctx context.Context) ([]corev1.Node, error) {
nodes, err := k.CoreV1().Nodes().List(ctx, metav1.ListOptions{})
if err != nil {
return nil, fmt.Errorf("listing nodes: %w", err)
}
return nodes.Items, nil
}
// AddTolerationsToDeployment adds [K8s tolerations] to the deployment, identified
// by name and namespace.
//
@ -213,3 +198,19 @@ func (k *Kubectl) AddNodeSelectorsToDeployment(ctx context.Context, selectors ma
}
return nil
}
// parseCRD takes a byte slice of data and tries to create a CustomResourceDefinition object from it.
func parseCRD(crdString []byte) (*v1.CustomResourceDefinition, error) {
sch := runtime.NewScheme()
_ = scheme.AddToScheme(sch)
_ = v1.AddToScheme(sch)
obj, groupVersionKind, err := serializer.NewCodecFactory(sch).UniversalDeserializer().Decode(crdString, nil, nil)
if err != nil {
return nil, fmt.Errorf("decoding crd: %w", err)
}
if groupVersionKind.Kind == "CustomResourceDefinition" {
return obj.(*v1.CustomResourceDefinition), nil
}
return nil, errors.New("parsed []byte, but did not find a CRD")
}