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This commit adds the ability to list RBD images. Signed-off-by: Oded Viner <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,93 @@ | ||
| /* | ||
| Copyright 2024 The Rook Authors. All rights reserved. | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
|
|
||
| package rbd | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "os" | ||
| "strings" | ||
| "text/tabwriter" | ||
|
|
||
| "github.com/rook/kubectl-rook-ceph/pkg/exec" | ||
| "github.com/rook/kubectl-rook-ceph/pkg/k8sutil" | ||
| "github.com/rook/kubectl-rook-ceph/pkg/logging" | ||
| v1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| ) | ||
|
|
||
| // List retrieves and displays the Ceph block pools and their associated images. | ||
| func ListImages(ctx context.Context, clientsets *k8sutil.Clientsets, operatorNamespace string, clusterNamespace string) { | ||
| // List Ceph Block Pools | ||
| blockPoolList, err := clientsets.Rook.CephV1().CephBlockPools(clusterNamespace).List(ctx, v1.ListOptions{}) | ||
| if err != nil { | ||
| logging.Fatal(fmt.Errorf("failed to list CephBlockPools: %w", err)) | ||
| } | ||
|
|
||
| // Initialize map to store block pool names and associated Rados namespaces | ||
| blockPoolNames := make(map[string][]string) | ||
| for _, blockPool := range blockPoolList.Items { | ||
| blockPoolNames[blockPool.Name] = []string{"--", "--"} | ||
| } | ||
|
|
||
| // List Ceph Block Pool Rados Namespaces | ||
| blockPoolNamespaceList, err := clientsets.Rook.CephV1().CephBlockPoolRadosNamespaces(clusterNamespace).List(ctx, v1.ListOptions{}) | ||
| if err != nil { | ||
| logging.Fatal(fmt.Errorf("failed to list CephBlockPoolRadosNamespaces: %w", err)) | ||
| } | ||
| for _, blockPoolNameSpace := range blockPoolNamespaceList.Items { | ||
| var name string | ||
| // Check if Spec.BlockPoolName exists; otherwise, use ObjectMeta.Name | ||
| if blockPoolNameSpace.Spec.Name != "" { | ||
| name = blockPoolNameSpace.Spec.Name | ||
| } else { | ||
| name = blockPoolNameSpace.ObjectMeta.Name | ||
| } | ||
| if _, exists := blockPoolNames[blockPoolNameSpace.Spec.BlockPoolName]; exists { | ||
| blockPoolNames[blockPoolNameSpace.Spec.BlockPoolName][1] = name | ||
| } | ||
| } | ||
|
|
||
| // Retrieve list of RBD images for each pool | ||
| cmd := "rbd" | ||
| var args []string | ||
| for poolName := range blockPoolNames { | ||
| if blockPoolNames[poolName][1] != "--" { | ||
| args = []string{"ls", "--pool=" + poolName, "--namespace=" + blockPoolNames[poolName][1]} | ||
| } else { | ||
| args = []string{"ls", "--pool=" + poolName} | ||
| } | ||
| list, err := exec.RunCommandInOperatorPod(ctx, clientsets, cmd, args, operatorNamespace, clusterNamespace, true) | ||
| if err == nil && len(list) > 0 { | ||
| blockPoolNames[poolName][0] = strings.ReplaceAll(list, "\n", "") | ||
| } | ||
| } | ||
| PrintBlockPoolNames(blockPoolNames) | ||
| } | ||
|
|
||
| // PrintBlockPoolNames takes a map of block pool names to image names and prints them in a tabular format. | ||
| func PrintBlockPoolNames(blockPoolNames map[string][]string) { | ||
| writer := tabwriter.NewWriter(os.Stdout, 0, 0, 2, ' ', 0) | ||
| defer writer.Flush() | ||
| // Print header with column names | ||
| fmt.Fprintln(writer, "poolName\timageName\tnamespace\t") | ||
| fmt.Fprintln(writer, "--------\t---------\t---------\t") | ||
|
|
||
| // Print each row from the map | ||
| for poolName, poolData := range blockPoolNames { | ||
| fmt.Fprintf(writer, "%s\t%s\t%s\t\n", poolName, poolData[0], poolData[1]) | ||
| } | ||
| } |