github.com/danielqsj/helm@v2.0.0-alpha.4.0.20160908204436-976e0ba5199b+incompatible/cmd/helm/status.go (about)

     1  /*
     2  Copyright 2016 The Kubernetes Authors All rights reserved.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package main
    18  
    19  import (
    20  	"fmt"
    21  	"io"
    22  
    23  	"github.com/spf13/cobra"
    24  
    25  	"k8s.io/helm/pkg/helm"
    26  	"k8s.io/helm/pkg/proto/hapi/services"
    27  	"k8s.io/helm/pkg/timeconv"
    28  )
    29  
    30  var statusHelp = `
    31  This command shows the status of a named release.
    32  `
    33  
    34  type statusCmd struct {
    35  	release string
    36  	out     io.Writer
    37  	client  helm.Interface
    38  }
    39  
    40  func newStatusCmd(client helm.Interface, out io.Writer) *cobra.Command {
    41  	status := &statusCmd{
    42  		out:    out,
    43  		client: client,
    44  	}
    45  	cmd := &cobra.Command{
    46  		Use:               "status [flags] RELEASE_NAME",
    47  		Short:             "displays the status of the named release",
    48  		Long:              statusHelp,
    49  		PersistentPreRunE: setupConnection,
    50  		RunE: func(cmd *cobra.Command, args []string) error {
    51  			if len(args) == 0 {
    52  				return errReleaseRequired
    53  			}
    54  			status.release = args[0]
    55  			if status.client == nil {
    56  				status.client = helm.NewClient(helm.Host(tillerHost))
    57  			}
    58  			return status.run()
    59  		},
    60  	}
    61  	return cmd
    62  }
    63  
    64  func (s *statusCmd) run() error {
    65  	res, err := s.client.ReleaseStatus(s.release)
    66  	if err != nil {
    67  		return prettyError(err)
    68  	}
    69  
    70  	PrintStatus(s.out, res)
    71  	return nil
    72  }
    73  
    74  // PrintStatus prints out the status of a release. Shared because also used by
    75  // install / upgrade
    76  func PrintStatus(out io.Writer, res *services.GetReleaseStatusResponse) {
    77  	if res.Info.LastDeployed != nil {
    78  		fmt.Fprintf(out, "Last Deployed: %s\n", timeconv.String(res.Info.LastDeployed))
    79  	}
    80  	fmt.Fprintf(out, "Namespace: %s\n", res.Namespace)
    81  	fmt.Fprintf(out, "Status: %s\n", res.Info.Status.Code)
    82  	if res.Info.Status.Details != nil {
    83  		fmt.Fprintf(out, "Details: %s\n", res.Info.Status.Details)
    84  	}
    85  	fmt.Fprintf(out, "\n")
    86  	if len(res.Info.Status.Resources) > 0 {
    87  		fmt.Fprintf(out, "Resources:\n%s\n", res.Info.Status.Resources)
    88  	}
    89  	if len(res.Info.Status.Notes) > 0 {
    90  		fmt.Fprintf(out, "Notes:\n%s\n", res.Info.Status.Notes)
    91  	}
    92  }