From 328ba8228be910d3491129e6c783542a6f3464ee Mon Sep 17 00:00:00 2001
From: Nolan Brubaker <brubakern@vmware.com>
Date: Fri, 5 Feb 2021 13:54:08 -0500
Subject: [PATCH] Add snapshot-location set command

Signed-off-by: Nolan Brubaker <brubakern@vmware.com>
---
 pkg/cmd/cli/snapshotlocation/set.go           | 116 ++++++++++++++++++
 .../cli/snapshotlocation/snapshot_location.go |   1 +
 2 files changed, 117 insertions(+)
 create mode 100644 pkg/cmd/cli/snapshotlocation/set.go

diff --git a/pkg/cmd/cli/snapshotlocation/set.go b/pkg/cmd/cli/snapshotlocation/set.go
new file mode 100644
index 000000000..4e35a70a6
--- /dev/null
+++ b/pkg/cmd/cli/snapshotlocation/set.go
@@ -0,0 +1,116 @@
+/*
+Copyright The Velero contributors.
+
+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 snapshotlocation
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/pkg/errors"
+	"github.com/spf13/cobra"
+	"github.com/spf13/pflag"
+	corev1api "k8s.io/api/core/v1"
+
+	kbclient "sigs.k8s.io/controller-runtime/pkg/client"
+
+	velerov1api "github.com/vmware-tanzu/velero/pkg/apis/velero/v1"
+	"github.com/vmware-tanzu/velero/pkg/client"
+	"github.com/vmware-tanzu/velero/pkg/cmd"
+	"github.com/vmware-tanzu/velero/pkg/cmd/util/flag"
+	"github.com/vmware-tanzu/velero/pkg/cmd/util/output"
+)
+
+func NewSetCommand(f client.Factory, use string) *cobra.Command {
+	o := NewSetOptions()
+
+	c := &cobra.Command{
+		Use:   use + " NAME",
+		Short: "Set specific features for a snapshot location",
+		Args:  cobra.ExactArgs(1),
+		Run: func(c *cobra.Command, args []string) {
+			cmd.CheckError(o.Complete(args, f))
+			cmd.CheckError(o.Validate(c, args, f))
+			cmd.CheckError(o.Run(c, f))
+		},
+	}
+
+	o.BindFlags(c.Flags())
+	return c
+}
+
+type SetOptions struct {
+	Name       string
+	Credential flag.Map
+}
+
+func NewSetOptions() *SetOptions {
+	return &SetOptions{}
+}
+
+func (o *SetOptions) BindFlags(flags *pflag.FlagSet) {
+	flags.Var(&o.Credential, "credential", "Sets the credential to be used by this location as a key-value pair, where the key is the Kubernetes Secret name, and the value is the data key name within the Secret. Optional, one value only.")
+}
+
+func (o *SetOptions) Validate(c *cobra.Command, args []string, f client.Factory) error {
+	if err := output.ValidateFlags(c); err != nil {
+		return err
+	}
+
+	if len(o.Credential.Data()) > 1 {
+		return errors.New("--credential can only contain 1 key/value pair")
+	}
+
+	return nil
+}
+
+func (o *SetOptions) Complete(args []string, f client.Factory) error {
+	o.Name = args[0]
+	return nil
+}
+
+func (o *SetOptions) Run(c *cobra.Command, f client.Factory) error {
+	kbClient, err := f.KubebuilderClient()
+	if err != nil {
+		return err
+	}
+
+	location := &velerov1api.VolumeSnapshotLocation{}
+	err = kbClient.Get(context.Background(), kbclient.ObjectKey{
+		Namespace: f.Namespace(),
+		Name:      o.Name,
+	}, location)
+	if err != nil {
+		return errors.WithStack(err)
+	}
+
+	for k, v := range o.Credential.Data() {
+		location.Spec.Credential = &corev1api.SecretKeySelector{
+			LocalObjectReference: corev1api.LocalObjectReference{
+				Name: k,
+			},
+			Key: v,
+		}
+		break
+	}
+
+	if err := kbClient.Update(context.Background(), location, &kbclient.UpdateOptions{}); err != nil {
+		return errors.WithStack(err)
+	}
+
+	fmt.Printf("Volume snapshot location %q configured successfully.\n", o.Name)
+	return nil
+}
diff --git a/pkg/cmd/cli/snapshotlocation/snapshot_location.go b/pkg/cmd/cli/snapshotlocation/snapshot_location.go
index e8879cd91..baebff451 100644
--- a/pkg/cmd/cli/snapshotlocation/snapshot_location.go
+++ b/pkg/cmd/cli/snapshotlocation/snapshot_location.go
@@ -32,6 +32,7 @@ func NewCommand(f client.Factory) *cobra.Command {
 	c.AddCommand(
 		NewCreateCommand(f, "create"),
 		NewGetCommand(f, "get"),
+		NewSetCommand(f, "set"),
 	)
 
 	return c