github.com/coreos/mantle@v0.13.0/platform/api/azure/replication.go (about)

     1  // Copyright 2016 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 azure
    16  
    17  import (
    18  	"encoding/xml"
    19  	"fmt"
    20  
    21  	"github.com/Azure/azure-sdk-for-go/management/location"
    22  )
    23  
    24  const (
    25  	computeService = "Compute"
    26  )
    27  
    28  var (
    29  	azureImageReplicateURL   = "services/images/%s/replicate"
    30  	azureImageUnreplicateURL = "services/images/%s/unreplicate"
    31  )
    32  
    33  type ReplicationInput struct {
    34  	XMLName         xml.Name `xml:"http://schemas.microsoft.com/windowsazure ReplicationInput"`
    35  	TargetLocations []string `xml:"TargetLocations>Region"`
    36  	Offer           string   `xml:"ComputeImageAttributes>Offer"`
    37  	Sku             string   `xml:"ComputeImageAttributes>Sku"`
    38  	Version         string   `xml:"ComputeImageAttributes>Version"`
    39  }
    40  
    41  // Locations returns a slice of Azure Locations which offer the Compute
    42  // service, useful for replicating to all Locations.
    43  func (a *API) Locations() ([]string, error) {
    44  	lc := location.NewClient(a.client)
    45  
    46  	llr, err := lc.ListLocations()
    47  	if err != nil {
    48  		return nil, err
    49  	}
    50  
    51  	var locations []string
    52  
    53  	for _, l := range llr.Locations {
    54  		haveCompute := false
    55  		for _, svc := range l.AvailableServices {
    56  			if svc == computeService {
    57  				haveCompute = true
    58  				break
    59  			}
    60  		}
    61  
    62  		if haveCompute {
    63  			locations = append(locations, l.Name)
    64  		} else {
    65  			plog.Infof("Skipping location %q without %s service", l.Name, computeService)
    66  		}
    67  	}
    68  
    69  	return locations, nil
    70  }
    71  
    72  func (a *API) ReplicateImage(image, offer, sku, version string, regions ...string) error {
    73  	ri := ReplicationInput{
    74  		TargetLocations: regions,
    75  		Offer:           offer,
    76  		Sku:             sku,
    77  		Version:         version,
    78  	}
    79  
    80  	data, err := xml.Marshal(&ri)
    81  	if err != nil {
    82  		return err
    83  	}
    84  
    85  	url := fmt.Sprintf(azureImageReplicateURL, image)
    86  
    87  	op, err := a.client.SendAzurePutRequest(url, "", data)
    88  	if err != nil {
    89  		return err
    90  	}
    91  
    92  	return a.client.WaitForOperation(op, nil)
    93  }
    94  
    95  func (a *API) UnreplicateImage(image string) error {
    96  	url := fmt.Sprintf(azureImageUnreplicateURL, image)
    97  	op, err := a.client.SendAzurePutRequest(url, "", []byte{})
    98  	if err != nil {
    99  		return err
   100  	}
   101  
   102  	return a.client.WaitForOperation(op, nil)
   103  }