github.com/coreos/mantle@v0.13.0/cmd/ore/gcloud/gc.go (about)

     1  // Copyright 2017 CoreOS, Inc.
     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 gcloud
    16  
    17  import (
    18  	"fmt"
    19  	"os"
    20  	"time"
    21  
    22  	"github.com/spf13/cobra"
    23  )
    24  
    25  var (
    26  	cmdGC = &cobra.Command{
    27  		Use:   "gc",
    28  		Short: "GC resources in GCE",
    29  		Long:  `Delete instances created over the given duration ago.`,
    30  		RunE:  runGC,
    31  	}
    32  
    33  	gcDuration time.Duration
    34  )
    35  
    36  func init() {
    37  	GCloud.AddCommand(cmdGC)
    38  	cmdGC.Flags().DurationVar(&gcDuration, "duration", 5*time.Hour, "how old resources must be before they're considered garbage")
    39  }
    40  
    41  func runGC(cmd *cobra.Command, args []string) error {
    42  	if len(args) != 0 {
    43  		fmt.Fprintf(os.Stderr, "Unrecognized args in gcloud gc cmd: %v\n", args)
    44  		os.Exit(2)
    45  	}
    46  
    47  	if err := api.GC(gcDuration); err != nil {
    48  		fmt.Fprintf(os.Stderr, "%v\n", err)
    49  		os.Exit(1)
    50  	}
    51  
    52  	return nil
    53  }