/
table_kubernetes_persistent_volume_claim.go
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/
table_kubernetes_persistent_volume_claim.go
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package kubernetes
import (
"context"
"strings"
v1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"github.com/turbot/steampipe-plugin-sdk/v5/grpc/proto"
"github.com/turbot/steampipe-plugin-sdk/v5/plugin"
"github.com/turbot/steampipe-plugin-sdk/v5/plugin/transform"
)
func tableKubernetesPersistentVolumeClaim(ctx context.Context) *plugin.Table {
return &plugin.Table{
Name: "kubernetes_persistent_volume_claim",
Description: "A PersistentVolumeClaim (PVC) is a request for storage by a user.",
Get: &plugin.GetConfig{
KeyColumns: plugin.AllColumns([]string{"name", "namespace"}),
Hydrate: getK8sPVC,
},
List: &plugin.ListConfig{
Hydrate: listK8sPVCs,
KeyColumns: getCommonOptionalKeyQuals(),
},
Columns: k8sCommonColumns([]*plugin.Column{
//// PersistentVolumeClaimSpec columns
{
Name: "volume_name",
Type: proto.ColumnType_STRING,
Description: "The binding reference to the PersistentVolume backing this claim.",
Transform: transform.FromField("Spec.VolumeName"),
},
{
Name: "volume_mode",
Type: proto.ColumnType_STRING,
Description: "Defines if a volume is intended to be used with a formatted filesystem or to remain in raw block state.",
Transform: transform.FromField("Spec.VolumeMode"),
},
{
Name: "storage_class",
Type: proto.ColumnType_STRING,
Description: "Name of StorageClass to which this persistent volume belongs. Empty value means that this volume does not belong to any StorageClass.",
Transform: transform.FromField("Spec.StorageClassName"),
},
{
Name: "access_modes",
Type: proto.ColumnType_JSON,
Description: "List of ways the volume can be mounted.",
Transform: transform.FromField("Spec.AccessModes"),
},
{
Name: "data_source",
Type: proto.ColumnType_JSON,
Description: "The source of the volume. This can be used to specify either: an existing VolumeSnapshot object (snapshot.storage.k8s.io/VolumeSnapshot), an existing PVC (PersistentVolumeClaim) or an existing custom resource that implements data population (Alpha).",
Transform: transform.FromField("Spec.DataSource"),
},
{
Name: "resources",
Type: proto.ColumnType_JSON,
Description: "Represents the minimum resources the volume should have.",
Transform: transform.FromField("Spec.Resources"),
},
{
Name: "selector",
Type: proto.ColumnType_JSON,
Description: "The actual volume backing the persistent volume.",
Transform: transform.FromField("Spec.Selector"),
},
//// PersistentVolumeClaimStatus columns
{
Name: "phase",
Type: proto.ColumnType_STRING,
Description: "Phase indicates the current phase of PersistentVolumeClaim.",
Transform: transform.FromField("Status.Phase"),
},
{
Name: "status_access_modes",
Type: proto.ColumnType_JSON,
Description: "The actual access modes the volume backing the PVC has.",
Transform: transform.FromField("Status.AccessModes"),
},
{
Name: "capacity",
Type: proto.ColumnType_JSON,
Description: "The actual resources of the underlying volume.",
Transform: transform.FromField("Status.Capacity"),
},
{
Name: "conditions",
Type: proto.ColumnType_JSON,
Description: "The Condition of persistent volume claim.",
Transform: transform.FromField("Status.Conditions"),
},
{
Name: "context_name",
Type: proto.ColumnType_STRING,
Description: "Kubectl config context name.",
Hydrate: getPersistentVolumeClaimResourceContext,
},
{
Name: "source_type",
Type: proto.ColumnType_STRING,
Description: "The source of the resource. Possible values are: deployed and manifest. If the resource is fetched from the spec file the value will be manifest.",
},
//// Steampipe Standard Columns
{
Name: "title",
Type: proto.ColumnType_STRING,
Description: ColumnDescriptionTitle,
Transform: transform.FromField("Name"),
},
{
Name: "tags",
Type: proto.ColumnType_JSON,
Description: ColumnDescriptionTags,
Transform: transform.From(transformPVCTags),
},
}),
}
}
type PersistentVolumeClaim struct {
v1.PersistentVolumeClaim
parsedContent
}
//// HYDRATE FUNCTIONS
func listK8sPVCs(ctx context.Context, d *plugin.QueryData, _ *plugin.HydrateData) (interface{}, error) {
logger := plugin.Logger(ctx)
logger.Trace("listK8sPVCs")
// Get the client for querying the K8s APIs for the provided context.
// If the connection is configured for the manifest files, the client will return nil.
clientset, err := GetNewClientset(ctx, d)
if err != nil {
return nil, err
}
// Check for manifest files
parsedContents, err := fetchResourceFromManifestFileByKind(ctx, d, "PersistentVolumeClaim")
if err != nil {
return nil, err
}
for _, content := range parsedContents {
persistentVolumeClaim := content.ParsedData.(*v1.PersistentVolumeClaim)
d.StreamListItem(ctx, PersistentVolumeClaim{*persistentVolumeClaim, content})
// Context can be cancelled due to manual cancellation or the limit has been hit
if d.RowsRemaining(ctx) == 0 {
return nil, nil
}
}
// Check for deployed resources
if clientset == nil {
return nil, nil
}
input := metav1.ListOptions{
Limit: 500,
}
// Limiting the results
limit := d.QueryContext.Limit
if d.QueryContext.Limit != nil {
if *limit < input.Limit {
if *limit < 1 {
input.Limit = 1
} else {
input.Limit = *limit
}
}
}
commonFieldSelectorValue := getCommonOptionalKeyQualsValueForFieldSelector(d)
if len(commonFieldSelectorValue) > 0 {
input.FieldSelector = strings.Join(commonFieldSelectorValue, ",")
}
var response *v1.PersistentVolumeClaimList
pageLeft := true
for pageLeft {
response, err = clientset.CoreV1().PersistentVolumeClaims(d.EqualsQualString("namespace")).List(ctx, input)
if err != nil {
return nil, err
}
if response.GetContinue() != "" {
input.Continue = response.Continue
} else {
pageLeft = false
}
for _, persistentVolumeClaim := range response.Items {
d.StreamListItem(ctx, PersistentVolumeClaim{persistentVolumeClaim, parsedContent{SourceType: "deployed"}})
// Context can be cancelled due to manual cancellation or the limit has been hit
if d.RowsRemaining(ctx) == 0 {
return nil, nil
}
}
}
return nil, nil
}
func getK8sPVC(ctx context.Context, d *plugin.QueryData, _ *plugin.HydrateData) (interface{}, error) {
logger := plugin.Logger(ctx)
logger.Trace("getK8sPVC")
// Get the client for querying the K8s APIs for the provided context.
// If the connection is configured for the manifest files, the client will return nil.
clientset, err := GetNewClientset(ctx, d)
if err != nil {
return nil, err
}
name := d.EqualsQuals["name"].GetStringValue()
namespace := d.EqualsQuals["namespace"].GetStringValue()
// return if namespace or name is empty
if namespace == "" || name == "" {
return nil, nil
}
// Get the manifest resource
parsedContents, err := fetchResourceFromManifestFileByKind(ctx, d, "PersistentVolumeClaim")
if err != nil {
return nil, err
}
for _, content := range parsedContents {
persistentVolumeClaim := content.ParsedData.(*v1.PersistentVolumeClaim)
if persistentVolumeClaim.Name == name && persistentVolumeClaim.Namespace == namespace {
return PersistentVolumeClaim{*persistentVolumeClaim, content}, nil
}
}
// Get the deployed resource
if clientset == nil {
return nil, nil
}
persistentVolumeClaim, err := clientset.CoreV1().PersistentVolumeClaims(namespace).Get(ctx, name, metav1.GetOptions{})
if err != nil && !isNotFoundError(err) {
return nil, err
}
return PersistentVolumeClaim{*persistentVolumeClaim, parsedContent{SourceType: "deployed"}}, nil
}
func getPersistentVolumeClaimResourceContext(ctx context.Context, d *plugin.QueryData, h *plugin.HydrateData) (interface{}, error) {
obj := h.Item.(PersistentVolumeClaim)
// Set the context_name as nil
data := map[string]interface{}{}
if obj.Path != "" {
return data, nil
}
// Else, set the current context as context_name
currentContext, err := getKubectlContext(ctx, d, nil)
if err != nil {
return data, nil
}
data["ContextName"] = currentContext.(string)
return data, nil
}
//// TRANSFORM FUNCTIONS
func transformPVCTags(_ context.Context, d *transform.TransformData) (interface{}, error) {
obj := d.HydrateItem.(PersistentVolumeClaim)
return mergeTags(obj.Labels, obj.Annotations), nil
}