lib/cloud/azure/azure_test.go

   1 // Copyright (C) The Arvados Authors. All rights reserved.
   2 //
   3 // SPDX-License-Identifier: AGPL-3.0
   4 //
   5 //
   6 // How to manually run individual tests against the real cloud:
   7 //
   8 // $ go test -v git.curoverse.com/arvados.git/lib/cloud/azure -live-azure-cfg azconfig.yml -check.f=TestCreate
   9 //
  10 // Tests should be run individually and in the order they are listed in the file:
  11 //
  12 // Example azconfig.yml:
  13 //
  14 // ImageIDForTestSuite: "https://example.blob.core.windows.net/system/Microsoft.Compute/Images/images/zzzzz-compute-osDisk.XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX.vhd"
  15 // DriverParameters:
  16 //       SubscriptionID: XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
  17 //       ClientID: XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
  18 //       Location: centralus
  19 //       CloudEnvironment: AzurePublicCloud
  20 //       ClientSecret: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
  21 //       TenantId: XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
  22 //       ResourceGroup: zzzzz
  23 //       Network: zzzzz
  24 //       Subnet: zzzzz-subnet-private
  25 //       StorageAccount: example
  26 //       BlobContainer: vhds
  27 //       DeleteDanglingResourcesAfter: 20s
  28 //       AdminUsername: crunch
  29
  30 package azure
  31
  32 import (
  33         "context"
  34         "encoding/json"
  35         "errors"
  36         "flag"
  37         "io/ioutil"
  38         "log"
  39         "net"
  40         "net/http"
  41         "os"
  42         "testing"
  43         "time"
  44
  45         "git.curoverse.com/arvados.git/lib/cloud"
  46         "git.curoverse.com/arvados.git/sdk/go/arvados"
  47         "git.curoverse.com/arvados.git/sdk/go/config"
  48         "github.com/Azure/azure-sdk-for-go/services/compute/mgmt/2018-06-01/compute"
  49         "github.com/Azure/azure-sdk-for-go/services/network/mgmt/2018-06-01/network"
  50         "github.com/Azure/azure-sdk-for-go/storage"
  51         "github.com/Azure/go-autorest/autorest"
  52         "github.com/Azure/go-autorest/autorest/azure"
  53         "github.com/Azure/go-autorest/autorest/to"
  54         "github.com/sirupsen/logrus"
  55         "golang.org/x/crypto/ssh"
  56         check "gopkg.in/check.v1"
  57 )
  58
  59 // Gocheck boilerplate
  60 func Test(t *testing.T) {
  61         check.TestingT(t)
  62 }
  63
  64 type AzureInstanceSetSuite struct{}
  65
  66 var _ = check.Suite(&AzureInstanceSetSuite{})
  67
  68 type VirtualMachinesClientStub struct{}
  69
  70 var testKey = []byte(`ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDLQS1ExT2+WjA0d/hntEAyAtgeN1W2ik2QX8c2zO6HjlPHWXL92r07W0WMuDib40Pcevpi1BXeBWXA9ZB5KKMJB+ukaAu22KklnQuUmNvk6ZXnPKSkGxuCYvPQb08WhHf3p1VxiKfP3iauedBDM4x9/bkJohlBBQiFXzNUcQ+a6rKiMzmJN2gbL8ncyUzc+XQ5q4JndTwTGtOlzDiGOc9O4z5Dd76wtAVJneOuuNpwfFRVHThpJM6VThpCZOnl8APaceWXKeuwOuCae3COZMz++xQfxOfZ9Z8aIwo+TlQhsRaNfZ4Vjrop6ej8dtfZtgUFKfbXEOYaHrGrWGotFDTD example@example`)
  71
  72 func (*VirtualMachinesClientStub) createOrUpdate(ctx context.Context,
  73         resourceGroupName string,
  74         VMName string,
  75         parameters compute.VirtualMachine) (result compute.VirtualMachine, err error) {
  76         parameters.ID = &VMName
  77         parameters.Name = &VMName
  78         return parameters, nil
  79 }
  80
  81 func (*VirtualMachinesClientStub) delete(ctx context.Context, resourceGroupName string, VMName string) (result *http.Response, err error) {
  82         return nil, nil
  83 }
  84
  85 func (*VirtualMachinesClientStub) listComplete(ctx context.Context, resourceGroupName string) (result compute.VirtualMachineListResultIterator, err error) {
  86         return compute.VirtualMachineListResultIterator{}, nil
  87 }
  88
  89 type InterfacesClientStub struct{}
  90
  91 func (*InterfacesClientStub) createOrUpdate(ctx context.Context,
  92         resourceGroupName string,
  93         nicName string,
  94         parameters network.Interface) (result network.Interface, err error) {
  95         parameters.ID = to.StringPtr(nicName)
  96         (*parameters.IPConfigurations)[0].PrivateIPAddress = to.StringPtr("192.168.5.5")
  97         return parameters, nil
  98 }
  99
 100 func (*InterfacesClientStub) delete(ctx context.Context, resourceGroupName string, VMName string) (result *http.Response, err error) {
 101         return nil, nil
 102 }
 103
 104 func (*InterfacesClientStub) listComplete(ctx context.Context, resourceGroupName string) (result network.InterfaceListResultIterator, err error) {
 105         return network.InterfaceListResultIterator{}, nil
 106 }
 107
 108 type testConfig struct {
 109         ImageIDForTestSuite string
 110         DriverParameters    json.RawMessage
 111 }
 112
 113 var live = flag.String("live-azure-cfg", "", "Test with real azure API, provide config file")
 114
 115 func GetInstanceSet() (cloud.InstanceSet, cloud.ImageID, arvados.Cluster, error) {
 116         cluster := arvados.Cluster{
 117                 InstanceTypes: arvados.InstanceTypeMap(map[string]arvados.InstanceType{
 118                         "tiny": arvados.InstanceType{
 119                                 Name:         "tiny",
 120                                 ProviderType: "Standard_D1_v2",
 121                                 VCPUs:        1,
 122                                 RAM:          4000000000,
 123                                 Scratch:      10000000000,
 124                                 Price:        .02,
 125                                 Preemptible:  false,
 126                         },
 127                 })}
 128         if *live != "" {
 129                 var exampleCfg testConfig
 130                 err := config.LoadFile(&exampleCfg, *live)
 131                 if err != nil {
 132                         return nil, cloud.ImageID(""), cluster, err
 133                 }
 134
 135                 ap, err := newAzureInstanceSet(exampleCfg.DriverParameters, "test123", logrus.StandardLogger())
 136                 return ap, cloud.ImageID(exampleCfg.ImageIDForTestSuite), cluster, err
 137         }
 138         ap := azureInstanceSet{
 139                 azconfig: azureInstanceSetConfig{
 140                         BlobContainer: "vhds",
 141                 },
 142                 dispatcherID: "test123",
 143                 namePrefix:   "compute-test123-",
 144                 logger:       logrus.StandardLogger(),
 145                 deleteNIC:    make(chan string),
 146                 deleteBlob:   make(chan storage.Blob),
 147         }
 148         ap.ctx, ap.stopFunc = context.WithCancel(context.Background())
 149         ap.vmClient = &VirtualMachinesClientStub{}
 150         ap.netClient = &InterfacesClientStub{}
 151         return &ap, cloud.ImageID("blob"), cluster, nil
 152 }
 153
 154 func (*AzureInstanceSetSuite) TestCreate(c *check.C) {
 155         ap, img, cluster, err := GetInstanceSet()
 156         if err != nil {
 157                 c.Fatal("Error making provider", err)
 158         }
 159
 160         pk, _, _, _, err := ssh.ParseAuthorizedKey(testKey)
 161         c.Assert(err, check.IsNil)
 162
 163         inst, err := ap.Create(cluster.InstanceTypes["tiny"],
 164                 img, map[string]string{
 165                         "TestTagName": "test tag value",
 166                 }, "umask 0600; echo -n test-file-data >/var/run/test-file", pk)
 167
 168         c.Assert(err, check.IsNil)
 169
 170         tags := inst.Tags()
 171         c.Check(tags["TestTagName"], check.Equals, "test tag value")
 172         c.Logf("inst.String()=%v Address()=%v Tags()=%v", inst.String(), inst.Address(), tags)
 173
 174 }
 175
 176 func (*AzureInstanceSetSuite) TestListInstances(c *check.C) {
 177         ap, _, _, err := GetInstanceSet()
 178         if err != nil {
 179                 c.Fatal("Error making provider", err)
 180         }
 181
 182         l, err := ap.Instances(nil)
 183
 184         c.Assert(err, check.IsNil)
 185
 186         for _, i := range l {
 187                 tg := i.Tags()
 188                 log.Printf("%v %v %v", i.String(), i.Address(), tg)
 189         }
 190 }
 191
 192 func (*AzureInstanceSetSuite) TestManageNics(c *check.C) {
 193         ap, _, _, err := GetInstanceSet()
 194         if err != nil {
 195                 c.Fatal("Error making provider", err)
 196         }
 197
 198         ap.(*azureInstanceSet).manageNics()
 199         ap.Stop()
 200 }
 201
 202 func (*AzureInstanceSetSuite) TestManageBlobs(c *check.C) {
 203         ap, _, _, err := GetInstanceSet()
 204         if err != nil {
 205                 c.Fatal("Error making provider", err)
 206         }
 207
 208         ap.(*azureInstanceSet).manageBlobs()
 209         ap.Stop()
 210 }
 211
 212 func (*AzureInstanceSetSuite) TestDestroyInstances(c *check.C) {
 213         ap, _, _, err := GetInstanceSet()
 214         if err != nil {
 215                 c.Fatal("Error making provider", err)
 216         }
 217
 218         l, err := ap.Instances(nil)
 219         c.Assert(err, check.IsNil)
 220
 221         for _, i := range l {
 222                 c.Check(i.Destroy(), check.IsNil)
 223         }
 224 }
 225
 226 func (*AzureInstanceSetSuite) TestDeleteFake(c *check.C) {
 227         ap, _, _, err := GetInstanceSet()
 228         if err != nil {
 229                 c.Fatal("Error making provider", err)
 230         }
 231
 232         _, err = ap.(*azureInstanceSet).netClient.delete(context.Background(), "fakefakefake", "fakefakefake")
 233
 234         de, ok := err.(autorest.DetailedError)
 235         if ok {
 236                 rq := de.Original.(*azure.RequestError)
 237
 238                 log.Printf("%v %q %q", rq.Response.StatusCode, rq.ServiceError.Code, rq.ServiceError.Message)
 239         }
 240 }
 241
 242 func (*AzureInstanceSetSuite) TestWrapError(c *check.C) {
 243         retryError := autorest.DetailedError{
 244                 Original: &azure.RequestError{
 245                         DetailedError: autorest.DetailedError{
 246                                 Response: &http.Response{
 247                                         StatusCode: 429,
 248                                         Header:     map[string][]string{"Retry-After": []string{"123"}},
 249                                 },
 250                         },
 251                         ServiceError: &azure.ServiceError{},
 252                 },
 253         }
 254         wrapped := wrapAzureError(retryError)
 255         _, ok := wrapped.(cloud.RateLimitError)
 256         c.Check(ok, check.Equals, true)
 257
 258         quotaError := autorest.DetailedError{
 259                 Original: &azure.RequestError{
 260                         DetailedError: autorest.DetailedError{
 261                                 Response: &http.Response{
 262                                         StatusCode: 503,
 263                                 },
 264                         },
 265                         ServiceError: &azure.ServiceError{
 266                                 Message: "No more quota",
 267                         },
 268                 },
 269         }
 270         wrapped = wrapAzureError(quotaError)
 271         _, ok = wrapped.(cloud.QuotaError)
 272         c.Check(ok, check.Equals, true)
 273 }
 274
 275 func (*AzureInstanceSetSuite) TestSetTags(c *check.C) {
 276         ap, _, _, err := GetInstanceSet()
 277         if err != nil {
 278                 c.Fatal("Error making provider", err)
 279         }
 280         l, err := ap.Instances(nil)
 281         c.Assert(err, check.IsNil)
 282
 283         if len(l) > 0 {
 284                 err = l[0].SetTags(map[string]string{"foo": "bar"})
 285                 if err != nil {
 286                         c.Fatal("Error setting tags", err)
 287                 }
 288         }
 289         l, err = ap.Instances(nil)
 290         c.Assert(err, check.IsNil)
 291
 292         if len(l) > 0 {
 293                 tg := l[0].Tags()
 294                 log.Printf("tags are %v", tg)
 295         }
 296 }
 297
 298 func (*AzureInstanceSetSuite) TestSSH(c *check.C) {
 299         ap, _, _, err := GetInstanceSet()
 300         if err != nil {
 301                 c.Fatal("Error making provider", err)
 302         }
 303         l, err := ap.Instances(nil)
 304         c.Assert(err, check.IsNil)
 305
 306         if len(l) > 0 {
 307                 sshclient, err := SetupSSHClient(c, l[0])
 308                 c.Assert(err, check.IsNil)
 309                 defer sshclient.Conn.Close()
 310
 311                 sess, err := sshclient.NewSession()
 312                 c.Assert(err, check.IsNil)
 313                 defer sess.Close()
 314                 _, err = sess.Output("find /var/run/test-file -maxdepth 0 -user root -perm 0600")
 315                 c.Assert(err, check.IsNil)
 316
 317                 sess, err = sshclient.NewSession()
 318                 c.Assert(err, check.IsNil)
 319                 defer sess.Close()
 320                 out, err := sess.Output("sudo cat /var/run/test-file")
 321                 c.Assert(err, check.IsNil)
 322                 c.Check(string(out), check.Equals, "test-file-data")
 323         }
 324 }
 325
 326 func SetupSSHClient(c *check.C, inst cloud.Instance) (*ssh.Client, error) {
 327         addr := inst.Address() + ":2222"
 328         if addr == "" {
 329                 return nil, errors.New("instance has no address")
 330         }
 331
 332         f, err := os.Open("azconfig_sshkey")
 333         c.Assert(err, check.IsNil)
 334
 335         keybytes, err := ioutil.ReadAll(f)
 336         c.Assert(err, check.IsNil)
 337
 338         priv, err := ssh.ParsePrivateKey(keybytes)
 339         c.Assert(err, check.IsNil)
 340
 341         var receivedKey ssh.PublicKey
 342         client, err := ssh.Dial("tcp", addr, &ssh.ClientConfig{
 343                 User: "crunch",
 344                 Auth: []ssh.AuthMethod{
 345                         ssh.PublicKeys(priv),
 346                 },
 347                 HostKeyCallback: func(hostname string, remote net.Addr, key ssh.PublicKey) error {
 348                         receivedKey = key
 349                         return nil
 350                 },
 351                 Timeout: time.Minute,
 352         })
 353
 354         if err != nil {
 355                 return nil, err
 356         } else if receivedKey == nil {
 357                 return nil, errors.New("BUG: key was never provided to HostKeyCallback")
 358         }
 359
 360         err = inst.VerifyHostKey(receivedKey, client)
 361         c.Assert(err, check.IsNil)
 362
 363         return client, nil
 364 }