github.com/coreos/mantle@v0.13.0/platform/machine/gcloud/machine.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  	"os"
    19  	"path/filepath"
    20  
    21  	"golang.org/x/crypto/ssh"
    22  
    23  	"github.com/coreos/mantle/platform"
    24  )
    25  
    26  type machine struct {
    27  	gc      *cluster
    28  	name    string
    29  	intIP   string
    30  	extIP   string
    31  	dir     string
    32  	journal *platform.Journal
    33  	console string
    34  }
    35  
    36  func (gm *machine) ID() string {
    37  	return gm.name
    38  }
    39  
    40  func (gm *machine) IP() string {
    41  	return gm.extIP
    42  }
    43  
    44  func (gm *machine) PrivateIP() string {
    45  	return gm.intIP
    46  }
    47  
    48  func (gm *machine) RuntimeConf() platform.RuntimeConfig {
    49  	return gm.gc.RuntimeConf()
    50  }
    51  
    52  func (gm *machine) SSHClient() (*ssh.Client, error) {
    53  	return gm.gc.SSHClient(gm.IP())
    54  }
    55  
    56  func (gm *machine) PasswordSSHClient(user string, password string) (*ssh.Client, error) {
    57  	return gm.gc.PasswordSSHClient(gm.IP(), user, password)
    58  }
    59  
    60  func (gm *machine) SSH(cmd string) ([]byte, []byte, error) {
    61  	return gm.gc.SSH(gm, cmd)
    62  }
    63  
    64  func (gm *machine) Reboot() error {
    65  	return platform.RebootMachine(gm, gm.journal)
    66  }
    67  
    68  func (gm *machine) Destroy() {
    69  	if err := gm.saveConsole(); err != nil {
    70  		plog.Errorf("Error saving console for instance %v: %v", gm.ID(), err)
    71  	}
    72  
    73  	if err := gm.gc.flight.api.TerminateInstance(gm.name); err != nil {
    74  		plog.Errorf("Error terminating instance %v: %v", gm.ID(), err)
    75  	}
    76  
    77  	if gm.journal != nil {
    78  		gm.journal.Destroy()
    79  	}
    80  
    81  	gm.gc.DelMach(gm)
    82  }
    83  
    84  func (gm *machine) ConsoleOutput() string {
    85  	return gm.console
    86  }
    87  
    88  func (gm *machine) saveConsole() error {
    89  	var err error
    90  	gm.console, err = gm.gc.flight.api.GetConsoleOutput(gm.name)
    91  	if err != nil {
    92  		return err
    93  	}
    94  
    95  	path := filepath.Join(gm.dir, "console.txt")
    96  	f, err := os.OpenFile(path, os.O_WRONLY|os.O_CREATE, 0644)
    97  	if err != nil {
    98  		return err
    99  	}
   100  	defer f.Close()
   101  	f.WriteString(gm.console)
   102  
   103  	return nil
   104  }
   105  
   106  func (gm *machine) JournalOutput() string {
   107  	if gm.journal == nil {
   108  		return ""
   109  	}
   110  
   111  	data, err := gm.journal.Read()
   112  	if err != nil {
   113  		plog.Errorf("Reading journal for instance %v: %v", gm.ID(), err)
   114  	}
   115  	return string(data)
   116  }