github.com/GoogleContainerTools/kpt@v1.0.0-beta.50.0.20240520170205-c25345ffcbee/commands/alpha/rollouts/get/get.go (about)

     1  // Copyright 2023 The kpt Authors
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package get
    16  
    17  import (
    18  	"context"
    19  	"fmt"
    20  
    21  	"github.com/GoogleContainerTools/kpt/commands/alpha/rollouts/rolloutsclient"
    22  	rolloutsapi "github.com/GoogleContainerTools/kpt/rollouts/api/v1alpha1"
    23  	"github.com/jedib0t/go-pretty/v6/table"
    24  	"github.com/spf13/cobra"
    25  	k8scmdutil "k8s.io/kubectl/pkg/cmd/util"
    26  )
    27  
    28  func NewCommand(ctx context.Context, f k8scmdutil.Factory) *cobra.Command {
    29  	return newRunner(ctx, f).Command
    30  }
    31  
    32  func newRunner(ctx context.Context, f k8scmdutil.Factory) *runner {
    33  	r := &runner{
    34  		ctx:     ctx,
    35  		factory: f,
    36  	}
    37  	c := &cobra.Command{
    38  		Use:     "get",
    39  		Short:   "lists rollouts",
    40  		Long:    "lists rollouts",
    41  		Example: "lists rollouts",
    42  		RunE:    r.runE,
    43  	}
    44  	r.Command = c
    45  	return r
    46  }
    47  
    48  type runner struct {
    49  	ctx     context.Context
    50  	Command *cobra.Command
    51  	factory k8scmdutil.Factory
    52  }
    53  
    54  func (r *runner) runE(cmd *cobra.Command, _ []string) error {
    55  	rlc, err := rolloutsclient.New()
    56  	if err != nil {
    57  		fmt.Printf("%s\n", err)
    58  		return err
    59  	}
    60  
    61  	namespace, _, err := r.factory.ToRawKubeConfigLoader().Namespace()
    62  	if err != nil {
    63  		return err
    64  	}
    65  	rollouts, err := rlc.List(r.ctx, namespace)
    66  	if err != nil {
    67  		fmt.Printf("%s\n", err)
    68  		return err
    69  	}
    70  	renderRolloutsAsTable(cmd, rollouts)
    71  	return nil
    72  }
    73  
    74  func renderRolloutsAsTable(cmd *cobra.Command, rollouts *rolloutsapi.RolloutList) {
    75  	t := table.NewWriter()
    76  	t.SetOutputMirror(cmd.OutOrStdout())
    77  	t.AppendHeader(table.Row{"ROLLOUT", "STATUS", "CLUSTERS (READY/TOTAL)"})
    78  	for _, rollout := range rollouts.Items {
    79  		readyCount := 0
    80  		for _, cluster := range rollout.Status.ClusterStatuses {
    81  			if cluster.PackageStatus.Status == "Synced" {
    82  				readyCount++
    83  			}
    84  		}
    85  		t.AppendRow([]interface{}{
    86  			rollout.Name,
    87  			rollout.Status.Overall,
    88  			fmt.Sprintf("%d/%d", readyCount, len(rollout.Status.ClusterStatuses))})
    89  	}
    90  	t.AppendSeparator()
    91  	t.Render()
    92  }