lib/cloud/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 -live-azure-cfg azconfig.yml -check.f=TestListInstances
   9 //
  10 // Example azconfig.yml:
  11 //
  12 // subscription_id: XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
  13 // key: XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
  14 // region: centralus
  15 // cloud_environment: AzurePublicCloud
  16 // secret: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
  17 // tenant_id: XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
  18 // resource_group: zzzzz
  19 // network: zzzzz
  20 // subnet: zzzzz-subnet-private
  21 // storage_account: example
  22 // blob_container: vhds
  23 // image: "https://example.blob.core.windows.net/system/Microsoft.Compute/Images/images/zzzzz-compute-osDisk.XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX.vhd"
  24 // delete_dangling_resources_after: 20
  25 // authorized_key: "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDLQS1ExT2+WjA0d/hntEAyAtgeN1W2ik2QX8c2zO6HjlPHWXL92r07W0WMuDib40Pcevpi1BXeBWXA9ZB5KKMJB+ukaAu22KklnQuUmNvk6ZXnPKSkGxuCYvPQb08WhHf3p1VxiKfP3iauedBDM4x9/bkJohlBBQiFXzNUcQ+a6rKiMzmJN2gbL8ncyUzc+XQ5q4JndTwTGtOlzDiGOc9O4z5Dd76wtAVJneOuuNpwfFRVHThpJM6VThpCZOnl8APaceWXKeuwOuCae3COZMz++xQfxOfZ9Z8aIwo+TlQhsRaNfZ4Vjrop6ej8dtfZtgUFKfbXEOYaHrGrWGotFDTD example@example"
  26
  27 package cloud
  28
  29 import (
  30         "context"
  31         "errors"
  32         "flag"
  33         "io/ioutil"
  34         "log"
  35         "net"
  36         "net/http"
  37         "os"
  38         "time"
  39
  40         "git.curoverse.com/arvados.git/sdk/go/arvados"
  41         "git.curoverse.com/arvados.git/sdk/go/config"
  42         "github.com/Azure/azure-sdk-for-go/services/compute/mgmt/2018-06-01/compute"
  43         "github.com/Azure/azure-sdk-for-go/services/network/mgmt/2018-06-01/network"
  44         "github.com/Azure/azure-sdk-for-go/storage"
  45         "github.com/Azure/go-autorest/autorest"
  46         "github.com/Azure/go-autorest/autorest/azure"
  47         "github.com/Azure/go-autorest/autorest/to"
  48         "github.com/jmcvetta/randutil"
  49         "github.com/sirupsen/logrus"
  50         "golang.org/x/crypto/ssh"
  51         check "gopkg.in/check.v1"
  52 )
  53
  54 type AzureInstanceSetSuite struct{}
  55
  56 var _ = check.Suite(&AzureInstanceSetSuite{})
  57
  58 type VirtualMachinesClientStub struct{}
  59
  60 func (*VirtualMachinesClientStub) CreateOrUpdate(ctx context.Context,
  61         resourceGroupName string,
  62         VMName string,
  63         parameters compute.VirtualMachine) (result compute.VirtualMachine, err error) {
  64         parameters.ID = &VMName
  65         parameters.Name = &VMName
  66         return parameters, nil
  67 }
  68
  69 func (*VirtualMachinesClientStub) Delete(ctx context.Context, resourceGroupName string, VMName string) (result *http.Response, err error) {
  70         return nil, nil
  71 }
  72
  73 func (*VirtualMachinesClientStub) ListComplete(ctx context.Context, resourceGroupName string) (result compute.VirtualMachineListResultIterator, err error) {
  74         return compute.VirtualMachineListResultIterator{}, nil
  75 }
  76
  77 type InterfacesClientStub struct{}
  78
  79 func (*InterfacesClientStub) CreateOrUpdate(ctx context.Context,
  80         resourceGroupName string,
  81         nicName string,
  82         parameters network.Interface) (result network.Interface, err error) {
  83         parameters.ID = to.StringPtr(nicName)
  84         (*parameters.IPConfigurations)[0].PrivateIPAddress = to.StringPtr("192.168.5.5")
  85         return parameters, nil
  86 }
  87
  88 func (*InterfacesClientStub) Delete(ctx context.Context, resourceGroupName string, VMName string) (result *http.Response, err error) {
  89         return nil, nil
  90 }
  91
  92 func (*InterfacesClientStub) ListComplete(ctx context.Context, resourceGroupName string) (result network.InterfaceListResultIterator, err error) {
  93         return network.InterfaceListResultIterator{}, nil
  94 }
  95
  96 var live = flag.String("live-azure-cfg", "", "Test with real azure API, provide config file")
  97
  98 func GetInstanceSet() (InstanceSet, ImageID, arvados.Cluster, error) {
  99         cluster := arvados.Cluster{
 100                 InstanceTypes: arvados.InstanceTypeMap(map[string]arvados.InstanceType{
 101                         "tiny": arvados.InstanceType{
 102                                 Name:         "tiny",
 103                                 ProviderType: "Standard_D1_v2",
 104                                 VCPUs:        1,
 105                                 RAM:          4000000000,
 106                                 Scratch:      10000000000,
 107                                 Price:        .02,
 108                                 Preemptible:  false,
 109                         },
 110                 })}
 111         if *live != "" {
 112                 cfg := make(map[string]interface{})
 113                 err := config.LoadFile(&cfg, *live)
 114                 if err != nil {
 115                         return nil, ImageID(""), cluster, err
 116                 }
 117                 ap, err := NewAzureInstanceSet(cfg, "test123", logrus.StandardLogger())
 118                 return ap, ImageID(cfg["image"].(string)), cluster, err
 119         } else {
 120                 ap := AzureInstanceSet{
 121                         azconfig: AzureInstanceSetConfig{
 122                                 BlobContainer: "vhds",
 123                         },
 124                         dispatcherID: "test123",
 125                         namePrefix:   "compute-test123-",
 126                         logger:       logrus.StandardLogger(),
 127                         deleteNIC:    make(chan string),
 128                         deleteBlob:   make(chan storage.Blob),
 129                 }
 130                 ap.ctx, ap.stopFunc = context.WithCancel(context.Background())
 131                 ap.vmClient = &VirtualMachinesClientStub{}
 132                 ap.netClient = &InterfacesClientStub{}
 133                 return &ap, ImageID("blob"), cluster, nil
 134         }
 135 }
 136
 137 func (*AzureInstanceSetSuite) TestCreate(c *check.C) {
 138         ap, img, cluster, err := GetInstanceSet()
 139         if err != nil {
 140                 c.Fatal("Error making provider", err)
 141         }
 142
 143         f, err := os.Open("azconfig_sshkey.pub")
 144         c.Assert(err, check.IsNil)
 145
 146         keybytes, err := ioutil.ReadAll(f)
 147         c.Assert(err, check.IsNil)
 148
 149         pk, _, _, _, err := ssh.ParseAuthorizedKey(keybytes)
 150         c.Assert(err, check.IsNil)
 151
 152         nodetoken, err := randutil.String(40, "abcdefghijklmnopqrstuvwxyz0123456789")
 153         c.Assert(err, check.IsNil)
 154
 155         inst, err := ap.Create(cluster.InstanceTypes["tiny"],
 156                 img, map[string]string{
 157                         "node-token": nodetoken},
 158                 pk)
 159
 160         c.Assert(err, check.IsNil)
 161
 162         tg := inst.Tags()
 163         log.Printf("Result %v %v %v", inst.String(), inst.Address(), tg)
 164
 165 }
 166
 167 func (*AzureInstanceSetSuite) TestListInstances(c *check.C) {
 168         ap, _, _, err := GetInstanceSet()
 169         if err != nil {
 170                 c.Fatal("Error making provider", err)
 171         }
 172
 173         l, err := ap.Instances(nil)
 174
 175         c.Assert(err, check.IsNil)
 176
 177         for _, i := range l {
 178                 tg := i.Tags()
 179                 log.Printf("%v %v %v", i.String(), i.Address(), tg)
 180         }
 181 }
 182
 183 func (*AzureInstanceSetSuite) TestManageNics(c *check.C) {
 184         ap, _, _, err := GetInstanceSet()
 185         if err != nil {
 186                 c.Fatal("Error making provider", err)
 187         }
 188
 189         ap.(*AzureInstanceSet).ManageNics()
 190         ap.Stop()
 191 }
 192
 193 func (*AzureInstanceSetSuite) TestManageBlobs(c *check.C) {
 194         ap, _, _, err := GetInstanceSet()
 195         if err != nil {
 196                 c.Fatal("Error making provider", err)
 197         }
 198
 199         ap.(*AzureInstanceSet).ManageBlobs()
 200         ap.Stop()
 201 }
 202
 203 func (*AzureInstanceSetSuite) TestDestroyInstances(c *check.C) {
 204         ap, _, _, err := GetInstanceSet()
 205         if err != nil {
 206                 c.Fatal("Error making provider", err)
 207         }
 208
 209         l, err := ap.Instances(nil)
 210         c.Assert(err, check.IsNil)
 211
 212         for _, i := range l {
 213                 c.Check(i.Destroy(), check.IsNil)
 214         }
 215 }
 216
 217 func (*AzureInstanceSetSuite) TestDeleteFake(c *check.C) {
 218         ap, _, _, err := GetInstanceSet()
 219         if err != nil {
 220                 c.Fatal("Error making provider", err)
 221         }
 222
 223         _, err = ap.(*AzureInstanceSet).netClient.Delete(context.Background(), "fakefakefake", "fakefakefake")
 224
 225         de, ok := err.(autorest.DetailedError)
 226         if ok {
 227                 rq := de.Original.(*azure.RequestError)
 228
 229                 log.Printf("%v %q %q", rq.Response.StatusCode, rq.ServiceError.Code, rq.ServiceError.Message)
 230         }
 231 }
 232
 233 func (*AzureInstanceSetSuite) TestWrapError(c *check.C) {
 234         retryError := autorest.DetailedError{
 235                 Original: &azure.RequestError{
 236                         DetailedError: autorest.DetailedError{
 237                                 Response: &http.Response{
 238                                         StatusCode: 429,
 239                                         Header:     map[string][]string{"Retry-After": []string{"123"}},
 240                                 },
 241                         },
 242                         ServiceError: &azure.ServiceError{},
 243                 },
 244         }
 245         wrapped := WrapAzureError(retryError)
 246         _, ok := wrapped.(RateLimitError)
 247         c.Check(ok, check.Equals, true)
 248
 249         quotaError := autorest.DetailedError{
 250                 Original: &azure.RequestError{
 251                         DetailedError: autorest.DetailedError{
 252                                 Response: &http.Response{
 253                                         StatusCode: 503,
 254                                 },
 255                         },
 256                         ServiceError: &azure.ServiceError{
 257                                 Message: "No more quota",
 258                         },
 259                 },
 260         }
 261         wrapped = WrapAzureError(quotaError)
 262         _, ok = wrapped.(QuotaError)
 263         c.Check(ok, check.Equals, true)
 264 }
 265
 266 func (*AzureInstanceSetSuite) TestSetTags(c *check.C) {
 267         ap, _, _, err := GetInstanceSet()
 268         if err != nil {
 269                 c.Fatal("Error making provider", err)
 270         }
 271         l, err := ap.Instances(nil)
 272         c.Assert(err, check.IsNil)
 273
 274         if len(l) > 0 {
 275                 err = l[0].SetTags(map[string]string{"foo": "bar"})
 276                 if err != nil {
 277                         c.Fatal("Error setting tags", err)
 278                 }
 279         }
 280         l, err = ap.Instances(nil)
 281         c.Assert(err, check.IsNil)
 282
 283         if len(l) > 0 {
 284                 tg := l[0].Tags()
 285                 log.Printf("tags are %v", tg)
 286         }
 287 }
 288
 289 func (*AzureInstanceSetSuite) TestSSH(c *check.C) {
 290         ap, _, _, err := GetInstanceSet()
 291         if err != nil {
 292                 c.Fatal("Error making provider", err)
 293         }
 294         l, err := ap.Instances(nil)
 295         c.Assert(err, check.IsNil)
 296
 297         if len(l) > 0 {
 298
 299                 sshclient, err := SetupSSHClient(c, l[0])
 300                 c.Assert(err, check.IsNil)
 301
 302                 sess, err := sshclient.NewSession()
 303                 c.Assert(err, check.IsNil)
 304
 305                 out, err := sess.Output("cat /home/crunch/node-token")
 306                 c.Assert(err, check.IsNil)
 307
 308                 log.Printf("%v", string(out))
 309
 310                 sshclient.Conn.Close()
 311         }
 312 }
 313
 314 func SetupSSHClient(c *check.C, inst Instance) (*ssh.Client, error) {
 315         addr := inst.Address() + ":2222"
 316         if addr == "" {
 317                 return nil, errors.New("instance has no address")
 318         }
 319
 320         f, err := os.Open("azconfig_sshkey")
 321         c.Assert(err, check.IsNil)
 322
 323         keybytes, err := ioutil.ReadAll(f)
 324         c.Assert(err, check.IsNil)
 325
 326         priv, err := ssh.ParsePrivateKey(keybytes)
 327         c.Assert(err, check.IsNil)
 328
 329         var receivedKey ssh.PublicKey
 330         client, err := ssh.Dial("tcp", addr, &ssh.ClientConfig{
 331                 User: "crunch",
 332                 Auth: []ssh.AuthMethod{
 333                         ssh.PublicKeys(priv),
 334                 },
 335                 HostKeyCallback: func(hostname string, remote net.Addr, key ssh.PublicKey) error {
 336                         receivedKey = key
 337                         return nil
 338                 },
 339                 Timeout: time.Minute,
 340         })
 341
 342         if err != nil {
 343                 return nil, err
 344         } else if receivedKey == nil {
 345                 return nil, errors.New("BUG: key was never provided to HostKeyCallback")
 346         }
 347
 348         err = inst.VerifyHostKey(receivedKey, client)
 349         c.Assert(err, check.IsNil)
 350
 351         return client, nil
 352 }