Add resume source commands

Signed-off-by: Stefan Prodan <stefan.prodan@gmail.com>

cmd/flux/resume_source_bucket.go

@@ -0,0 +1,115 @@
+/*
+Copyright 2020 The Flux authors
+
+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 main
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/fluxcd/flux2/internal/utils"
+	"github.com/fluxcd/pkg/apis/meta"
+
+	"github.com/spf13/cobra"
+	apimeta "k8s.io/apimachinery/pkg/api/meta"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/types"
+	"k8s.io/apimachinery/pkg/util/wait"
+	"sigs.k8s.io/controller-runtime/pkg/client"
+
+	sourcev1 "github.com/fluxcd/source-controller/api/v1beta1"
+)
+
+var resumeSourceBucketCmd = &cobra.Command{
+	Use:   "bucket [name]",
+	Short: "Resume a suspended Bucket",
+	Long:  `The resume command marks a previously suspended Bucket resource for reconciliation and waits for it to finish.`,
+	Example: `  # Resume reconciliation for an existing Bucket
+  flux resume source bucket podinfo
+`,
+	RunE: resumeSourceBucketCmdRun,
+}
+
+func init() {
+	resumeSourceCmd.AddCommand(resumeSourceBucketCmd)
+}
+
+func resumeSourceBucketCmdRun(cmd *cobra.Command, args []string) error {
+	if len(args) < 1 {
+		return fmt.Errorf("source name is required")
+	}
+	name := args[0]
+
+	ctx, cancel := context.WithTimeout(context.Background(), timeout)
+	defer cancel()
+
+	kubeClient, err := utils.KubeClient(kubeconfig, kubecontext)
+	if err != nil {
+		return err
+	}
+
+	namespacedName := types.NamespacedName{
+		Namespace: namespace,
+		Name:      name,
+	}
+	var bucket sourcev1.Bucket
+	err = kubeClient.Get(ctx, namespacedName, &bucket)
+	if err != nil {
+		return err
+	}
+
+	logger.Actionf("resuming source %s in %s namespace", name, namespace)
+	bucket.Spec.Suspend = false
+	if err := kubeClient.Update(ctx, &bucket); err != nil {
+		return err
+	}
+	logger.Successf("source resumed")
+
+	logger.Waitingf("waiting for Bucket reconciliation")
+	if err := wait.PollImmediate(pollInterval, timeout,
+		isBucketResumed(ctx, kubeClient, namespacedName, &bucket)); err != nil {
+		return err
+	}
+	logger.Successf("Bucket reconciliation completed")
+
+	logger.Successf("fetched revision %s", bucket.Status.Artifact.Revision)
+	return nil
+}
+
+func isBucketResumed(ctx context.Context, kubeClient client.Client,
+	namespacedName types.NamespacedName, bucket *sourcev1.Bucket) wait.ConditionFunc {
+	return func() (bool, error) {
+		err := kubeClient.Get(ctx, namespacedName, bucket)
+		if err != nil {
+			return false, err
+		}
+
+		// Confirm the state we are observing is for the current generation
+		if bucket.Generation != bucket.Status.ObservedGeneration {
+			return false, nil
+		}
+
+		if c := apimeta.FindStatusCondition(bucket.Status.Conditions, meta.ReadyCondition); c != nil {
+			switch c.Status {
+			case metav1.ConditionTrue:
+				return true, nil
+			case metav1.ConditionFalse:
+				return false, fmt.Errorf(c.Message)
+			}
+		}
+		return false, nil
+	}
+}