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Update aws-sdk-go dependency to v1.28.2

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This commit is contained in:
Sri Saran Balaji Vellore Rajakumar
2020-01-16 19:22:14 -08:00
parent 90d6484f1c
commit a94346bef9
137 changed files with 43354 additions and 5454 deletions
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2
vendor/github.com/aws/aws-sdk-go/aws/ec2metadata/BUILD generated vendored
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@@ -5,6 +5,7 @@ go_library(
srcs = [
"api.go",
"service.go",
"token_provider.go",
],
importmap = "k8s.io/kubernetes/vendor/github.com/aws/aws-sdk-go/aws/ec2metadata",
importpath = "github.com/aws/aws-sdk-go/aws/ec2metadata",
@@ -15,6 +16,7 @@ go_library(
"//vendor/github.com/aws/aws-sdk-go/aws/client:go_default_library",
"//vendor/github.com/aws/aws-sdk-go/aws/client/metadata:go_default_library",
"//vendor/github.com/aws/aws-sdk-go/aws/corehandlers:go_default_library",
"//vendor/github.com/aws/aws-sdk-go/aws/credentials:go_default_library",
"//vendor/github.com/aws/aws-sdk-go/aws/request:go_default_library",
"//vendor/github.com/aws/aws-sdk-go/internal/sdkuri:go_default_library",
],

99
vendor/github.com/aws/aws-sdk-go/aws/ec2metadata/api.go generated vendored
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@@ -4,6 +4,7 @@ import (
"encoding/json"
"fmt"
"net/http"
"strconv"
"strings"
"time"
@@ -12,8 +13,41 @@ import (
"github.com/aws/aws-sdk-go/internal/sdkuri"
)
// getToken uses the duration to return a token for EC2 metadata service,
// or an error if the request failed.
func (c *EC2Metadata) getToken(duration time.Duration) (tokenOutput, error) {
op := &request.Operation{
Name: "GetToken",
HTTPMethod: "PUT",
HTTPPath: "/api/token",
}
var output tokenOutput
req := c.NewRequest(op, nil, &output)
// remove the fetch token handler from the request handlers to avoid infinite recursion
req.Handlers.Sign.RemoveByName(fetchTokenHandlerName)
// Swap the unmarshalMetadataHandler with unmarshalTokenHandler on this request.
req.Handlers.Unmarshal.Swap(unmarshalMetadataHandlerName, unmarshalTokenHandler)
ttl := strconv.FormatInt(int64(duration/time.Second), 10)
req.HTTPRequest.Header.Set(ttlHeader, ttl)
err := req.Send()
// Errors with bad request status should be returned.
if err != nil {
err = awserr.NewRequestFailure(
awserr.New(req.HTTPResponse.Status, http.StatusText(req.HTTPResponse.StatusCode), err),
req.HTTPResponse.StatusCode, req.RequestID)
}
return output, err
}
// GetMetadata uses the path provided to request information from the EC2
// instance metdata service. The content will be returned as a string, or
// instance metadata service. The content will be returned as a string, or
// error if the request failed.
func (c *EC2Metadata) GetMetadata(p string) (string, error) {
op := &request.Operation{
@@ -21,11 +55,12 @@ func (c *EC2Metadata) GetMetadata(p string) (string, error) {
HTTPMethod: "GET",
HTTPPath: sdkuri.PathJoin("/meta-data", p),
}
output := &metadataOutput{}
req := c.NewRequest(op, nil, output)
return output.Content, req.Send()
err := req.Send()
return output.Content, err
}
// GetUserData returns the userdata that was configured for the service. If
@@ -40,13 +75,9 @@ func (c *EC2Metadata) GetUserData() (string, error) {
output := &metadataOutput{}
req := c.NewRequest(op, nil, output)
req.Handlers.UnmarshalError.PushBack(func(r *request.Request) {
if r.HTTPResponse.StatusCode == http.StatusNotFound {
r.Error = awserr.New("NotFoundError", "user-data not found", r.Error)
}
})
return output.Content, req.Send()
err := req.Send()
return output.Content, err
}
// GetDynamicData uses the path provided to request information from the EC2
@@ -62,7 +93,8 @@ func (c *EC2Metadata) GetDynamicData(p string) (string, error) {
output := &metadataOutput{}
req := c.NewRequest(op, nil, output)
return output.Content, req.Send()
err := req.Send()
return output.Content, err
}
// GetInstanceIdentityDocument retrieves an identity document describing an
@@ -79,7 +111,7 @@ func (c *EC2Metadata) GetInstanceIdentityDocument() (EC2InstanceIdentityDocument
doc := EC2InstanceIdentityDocument{}
if err := json.NewDecoder(strings.NewReader(resp)).Decode(&doc); err != nil {
return EC2InstanceIdentityDocument{},
awserr.New("SerializationError",
awserr.New(request.ErrCodeSerialization,
"failed to decode EC2 instance identity document", err)
}
@@ -98,7 +130,7 @@ func (c *EC2Metadata) IAMInfo() (EC2IAMInfo, error) {
info := EC2IAMInfo{}
if err := json.NewDecoder(strings.NewReader(resp)).Decode(&info); err != nil {
return EC2IAMInfo{},
awserr.New("SerializationError",
awserr.New(request.ErrCodeSerialization,
"failed to decode EC2 IAM info", err)
}
@@ -113,17 +145,17 @@ func (c *EC2Metadata) IAMInfo() (EC2IAMInfo, error) {
// Region returns the region the instance is running in.
func (c *EC2Metadata) Region() (string, error) {
resp, err := c.GetMetadata("placement/availability-zone")
ec2InstanceIdentityDocument, err := c.GetInstanceIdentityDocument()
if err != nil {
return "", err
}
if len(resp) == 0 {
return "", awserr.New("EC2MetadataError", "invalid Region response", nil)
// extract region from the ec2InstanceIdentityDocument
region := ec2InstanceIdentityDocument.Region
if len(region) == 0 {
return "", awserr.New("EC2MetadataError", "invalid region received for ec2metadata instance", nil)
}
// returns region without the suffix. Eg: us-west-2a becomes us-west-2
return resp[:len(resp)-1], nil
// returns region
return region, nil
}
// Available returns if the application has access to the EC2 Metadata service.
@@ -149,18 +181,19 @@ type EC2IAMInfo struct {
// An EC2InstanceIdentityDocument provides the shape for unmarshaling
// an instance identity document
type EC2InstanceIdentityDocument struct {
DevpayProductCodes []string `json:"devpayProductCodes"`
AvailabilityZone string `json:"availabilityZone"`
PrivateIP string `json:"privateIp"`
Version string `json:"version"`
Region string `json:"region"`
InstanceID string `json:"instanceId"`
BillingProducts []string `json:"billingProducts"`
InstanceType string `json:"instanceType"`
AccountID string `json:"accountId"`
PendingTime time.Time `json:"pendingTime"`
ImageID string `json:"imageId"`
KernelID string `json:"kernelId"`
RamdiskID string `json:"ramdiskId"`
Architecture string `json:"architecture"`
DevpayProductCodes []string `json:"devpayProductCodes"`
MarketplaceProductCodes []string `json:"marketplaceProductCodes"`
AvailabilityZone string `json:"availabilityZone"`
PrivateIP string `json:"privateIp"`
Version string `json:"version"`
Region string `json:"region"`
InstanceID string `json:"instanceId"`
BillingProducts []string `json:"billingProducts"`
InstanceType string `json:"instanceType"`
AccountID string `json:"accountId"`
PendingTime time.Time `json:"pendingTime"`
ImageID string `json:"imageId"`
KernelID string `json:"kernelId"`
RamdiskID string `json:"ramdiskId"`
Architecture string `json:"architecture"`
}

121
vendor/github.com/aws/aws-sdk-go/aws/ec2metadata/service.go generated vendored
View File

@@ -13,6 +13,7 @@ import (
"io"
"net/http"
"os"
"strconv"
"strings"
"time"
@@ -24,9 +25,25 @@ import (
"github.com/aws/aws-sdk-go/aws/request"
)
// ServiceName is the name of the service.
const ServiceName = "ec2metadata"
const disableServiceEnvVar = "AWS_EC2_METADATA_DISABLED"
const (
// ServiceName is the name of the service.
ServiceName = "ec2metadata"
disableServiceEnvVar = "AWS_EC2_METADATA_DISABLED"
// Headers for Token and TTL
ttlHeader = "x-aws-ec2-metadata-token-ttl-seconds"
tokenHeader = "x-aws-ec2-metadata-token"
// Named Handler constants
fetchTokenHandlerName = "FetchTokenHandler"
unmarshalMetadataHandlerName = "unmarshalMetadataHandler"
unmarshalTokenHandlerName = "unmarshalTokenHandler"
enableTokenProviderHandlerName = "enableTokenProviderHandler"
// TTL constants
defaultTTL = 21600 * time.Second
ttlExpirationWindow = 30 * time.Second
)
// A EC2Metadata is an EC2 Metadata service Client.
type EC2Metadata struct {
@@ -63,8 +80,10 @@ func NewClient(cfg aws.Config, handlers request.Handlers, endpoint, signingRegio
// use a shorter timeout than default because the metadata
// service is local if it is running, and to fail faster
// if not running on an ec2 instance.
Timeout: 5 * time.Second,
Timeout: 1 * time.Second,
}
// max number of retries on the client operation
cfg.MaxRetries = aws.Int(2)
}
svc := &EC2Metadata{
@@ -80,18 +99,35 @@ func NewClient(cfg aws.Config, handlers request.Handlers, endpoint, signingRegio
),
}
svc.Handlers.Unmarshal.PushBack(unmarshalHandler)
// token provider instance
tp := newTokenProvider(svc, defaultTTL)
// NamedHandler for fetching token
svc.Handlers.Sign.PushBackNamed(request.NamedHandler{
Name: fetchTokenHandlerName,
Fn: tp.fetchTokenHandler,
})
// NamedHandler for enabling token provider
svc.Handlers.Complete.PushBackNamed(request.NamedHandler{
Name: enableTokenProviderHandlerName,
Fn: tp.enableTokenProviderHandler,
})
svc.Handlers.Unmarshal.PushBackNamed(unmarshalHandler)
svc.Handlers.UnmarshalError.PushBack(unmarshalError)
svc.Handlers.Validate.Clear()
svc.Handlers.Validate.PushBack(validateEndpointHandler)
// Disable the EC2 Metadata service if the environment variable is set.
// This shortcirctes the service's functionality to always fail to send
// This short-circuits the service's functionality to always fail to send
// requests.
if strings.ToLower(os.Getenv(disableServiceEnvVar)) == "true" {
svc.Handlers.Send.SwapNamed(request.NamedHandler{
Name: corehandlers.SendHandler.Name,
Fn: func(r *request.Request) {
r.HTTPResponse = &http.Response{
Header: http.Header{},
}
r.Error = awserr.New(
request.CanceledErrorCode,
"EC2 IMDS access disabled via "+disableServiceEnvVar+" env var",
@@ -104,7 +140,6 @@ func NewClient(cfg aws.Config, handlers request.Handlers, endpoint, signingRegio
for _, option := range opts {
option(svc.Client)
}
return svc
}
@@ -116,30 +151,74 @@ type metadataOutput struct {
Content string
}
func unmarshalHandler(r *request.Request) {
defer r.HTTPResponse.Body.Close()
b := &bytes.Buffer{}
if _, err := io.Copy(b, r.HTTPResponse.Body); err != nil {
r.Error = awserr.New("SerializationError", "unable to unmarshal EC2 metadata respose", err)
return
}
type tokenOutput struct {
Token string
TTL time.Duration
}
if data, ok := r.Data.(*metadataOutput); ok {
data.Content = b.String()
}
// unmarshal token handler is used to parse the response of a getToken operation
var unmarshalTokenHandler = request.NamedHandler{
Name: unmarshalTokenHandlerName,
Fn: func(r *request.Request) {
defer r.HTTPResponse.Body.Close()
var b bytes.Buffer
if _, err := io.Copy(&b, r.HTTPResponse.Body); err != nil {
r.Error = awserr.NewRequestFailure(awserr.New(request.ErrCodeSerialization,
"unable to unmarshal EC2 metadata response", err), r.HTTPResponse.StatusCode, r.RequestID)
return
}
v := r.HTTPResponse.Header.Get(ttlHeader)
data, ok := r.Data.(*tokenOutput)
if !ok {
return
}
data.Token = b.String()
// TTL is in seconds
i, err := strconv.ParseInt(v, 10, 64)
if err != nil {
r.Error = awserr.NewRequestFailure(awserr.New(request.ParamFormatErrCode,
"unable to parse EC2 token TTL response", err), r.HTTPResponse.StatusCode, r.RequestID)
return
}
t := time.Duration(i) * time.Second
data.TTL = t
},
}
var unmarshalHandler = request.NamedHandler{
Name: unmarshalMetadataHandlerName,
Fn: func(r *request.Request) {
defer r.HTTPResponse.Body.Close()
var b bytes.Buffer
if _, err := io.Copy(&b, r.HTTPResponse.Body); err != nil {
r.Error = awserr.NewRequestFailure(awserr.New(request.ErrCodeSerialization,
"unable to unmarshal EC2 metadata response", err), r.HTTPResponse.StatusCode, r.RequestID)
return
}
if data, ok := r.Data.(*metadataOutput); ok {
data.Content = b.String()
}
},
}
func unmarshalError(r *request.Request) {
defer r.HTTPResponse.Body.Close()
b := &bytes.Buffer{}
if _, err := io.Copy(b, r.HTTPResponse.Body); err != nil {
r.Error = awserr.New("SerializationError", "unable to unmarshal EC2 metadata error respose", err)
var b bytes.Buffer
if _, err := io.Copy(&b, r.HTTPResponse.Body); err != nil {
r.Error = awserr.NewRequestFailure(
awserr.New(request.ErrCodeSerialization, "unable to unmarshal EC2 metadata error response", err),
r.HTTPResponse.StatusCode, r.RequestID)
return
}
// Response body format is not consistent between metadata endpoints.
// Grab the error message as a string and include that as the source error
r.Error = awserr.New("EC2MetadataError", "failed to make EC2Metadata request", errors.New(b.String()))
r.Error = awserr.NewRequestFailure(awserr.New("EC2MetadataError", "failed to make EC2Metadata request", errors.New(b.String())),
r.HTTPResponse.StatusCode, r.RequestID)
}
func validateEndpointHandler(r *request.Request) {

92
vendor/github.com/aws/aws-sdk-go/aws/ec2metadata/token_provider.go generated vendored Normal file
View File

@@ -0,0 +1,92 @@
package ec2metadata
import (
"net/http"
"sync/atomic"
"time"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/credentials"
"github.com/aws/aws-sdk-go/aws/request"
)
// A tokenProvider struct provides access to EC2Metadata client
// and atomic instance of a token, along with configuredTTL for it.
// tokenProvider also provides an atomic flag to disable the
// fetch token operation.
// The disabled member will use 0 as false, and 1 as true.
type tokenProvider struct {
client *EC2Metadata
token atomic.Value
configuredTTL time.Duration
disabled uint32
}
// A ec2Token struct helps use of token in EC2 Metadata service ops
type ec2Token struct {
token string
credentials.Expiry
}
// newTokenProvider provides a pointer to a tokenProvider instance
func newTokenProvider(c *EC2Metadata, duration time.Duration) *tokenProvider {
return &tokenProvider{client: c, configuredTTL: duration}
}
// fetchTokenHandler fetches token for EC2Metadata service client by default.
func (t *tokenProvider) fetchTokenHandler(r *request.Request) {
// short-circuits to insecure data flow if tokenProvider is disabled.
if v := atomic.LoadUint32(&t.disabled); v == 1 {
return
}
if ec2Token, ok := t.token.Load().(ec2Token); ok && !ec2Token.IsExpired() {
r.HTTPRequest.Header.Set(tokenHeader, ec2Token.token)
return
}
output, err := t.client.getToken(t.configuredTTL)
if err != nil {
// change the disabled flag on token provider to true,
// when error is request timeout error.
if requestFailureError, ok := err.(awserr.RequestFailure); ok {
switch requestFailureError.StatusCode() {
case http.StatusForbidden, http.StatusNotFound, http.StatusMethodNotAllowed:
atomic.StoreUint32(&t.disabled, 1)
case http.StatusBadRequest:
r.Error = requestFailureError
}
// Check if request timed out while waiting for response
if e, ok := requestFailureError.OrigErr().(awserr.Error); ok {
if e.Code() == request.ErrCodeRequestError {
atomic.StoreUint32(&t.disabled, 1)
}
}
}
return
}
newToken := ec2Token{
token: output.Token,
}
newToken.SetExpiration(time.Now().Add(output.TTL), ttlExpirationWindow)
t.token.Store(newToken)
// Inject token header to the request.
if ec2Token, ok := t.token.Load().(ec2Token); ok {
r.HTTPRequest.Header.Set(tokenHeader, ec2Token.token)
}
}
// enableTokenProviderHandler enables the token provider
func (t *tokenProvider) enableTokenProviderHandler(r *request.Request) {
// If the error code status is 401, we enable the token provider
if e, ok := r.Error.(awserr.RequestFailure); ok && e != nil &&
e.StatusCode() == http.StatusUnauthorized {
atomic.StoreUint32(&t.disabled, 0)
}
}