github.com/coreos/mantle@v0.13.0/cmd/ore/do/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 do
    16  
    17  import (
    18  	"context"
    19  	"fmt"
    20  	"os"
    21  	"time"
    22  
    23  	"github.com/spf13/cobra"
    24  )
    25  
    26  var (
    27  	cmdGC = &cobra.Command{
    28  		Use:   "gc",
    29  		Short: "GC resources in DO",
    30  		Long:  `Delete droplets created over the given duration ago.`,
    31  		RunE:  runGC,
    32  	}
    33  
    34  	gcDuration time.Duration
    35  )
    36  
    37  func init() {
    38  	DO.AddCommand(cmdGC)
    39  	cmdGC.Flags().DurationVar(&gcDuration, "duration", 5*time.Hour, "how old resources must be before they're considered garbage")
    40  }
    41  
    42  func runGC(cmd *cobra.Command, args []string) error {
    43  	if len(args) != 0 {
    44  		fmt.Fprintf(os.Stderr, "Unrecognized args in do gc cmd: %v\n", args)
    45  		os.Exit(2)
    46  	}
    47  
    48  	if err := API.GC(context.Background(), gcDuration); err != nil {
    49  		fmt.Fprintf(os.Stderr, "%v\n", err)
    50  		os.Exit(1)
    51  	}
    52  
    53  	return nil
    54  }