rebase: update kubernetes to v1.20.0

updated kubernetes packages to latest
release.

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>

vendor/github.com/aws/aws-sdk-go/service/ec2/customizations.go

@@ -0,0 +1,91 @@
+package ec2
+
+import (
+	"time"
+
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/aws/awsutil"
+	"github.com/aws/aws-sdk-go/aws/client"
+	"github.com/aws/aws-sdk-go/aws/endpoints"
+	"github.com/aws/aws-sdk-go/aws/request"
+)
+
+const (
+	// customRetryerMinRetryDelay sets min retry delay
+	customRetryerMinRetryDelay = 1 * time.Second
+
+	// customRetryerMaxRetryDelay sets max retry delay
+	customRetryerMaxRetryDelay = 8 * time.Second
+)
+
+func init() {
+	initRequest = func(r *request.Request) {
+		if r.Operation.Name == opCopySnapshot { // fill the PresignedURL parameter
+			r.Handlers.Build.PushFront(fillPresignedURL)
+		}
+
+		// only set the retryer on request if config doesn't have a retryer
+		if r.Config.Retryer == nil && (r.Operation.Name == opModifyNetworkInterfaceAttribute || r.Operation.Name == opAssignPrivateIpAddresses) {
+			maxRetries := client.DefaultRetryerMaxNumRetries
+			if m := r.Config.MaxRetries; m != nil && *m != aws.UseServiceDefaultRetries {
+				maxRetries = *m
+			}
+			r.Retryer = client.DefaultRetryer{
+				NumMaxRetries:    maxRetries,
+				MinRetryDelay:    customRetryerMinRetryDelay,
+				MinThrottleDelay: customRetryerMinRetryDelay,
+				MaxRetryDelay:    customRetryerMaxRetryDelay,
+				MaxThrottleDelay: customRetryerMaxRetryDelay,
+			}
+		}
+	}
+}
+
+func fillPresignedURL(r *request.Request) {
+	if !r.ParamsFilled() {
+		return
+	}
+
+	origParams := r.Params.(*CopySnapshotInput)
+
+	// Stop if PresignedURL/DestinationRegion is set
+	if origParams.PresignedUrl != nil || origParams.DestinationRegion != nil {
+		return
+	}
+
+	origParams.DestinationRegion = r.Config.Region
+	newParams := awsutil.CopyOf(r.Params).(*CopySnapshotInput)
+
+	// Create a new request based on the existing request. We will use this to
+	// presign the CopySnapshot request against the source region.
+	cfg := r.Config.Copy(aws.NewConfig().
+		WithEndpoint("").
+		WithRegion(aws.StringValue(origParams.SourceRegion)))
+
+	clientInfo := r.ClientInfo
+	resolved, err := r.Config.EndpointResolver.EndpointFor(
+		clientInfo.ServiceName, aws.StringValue(cfg.Region),
+		func(opt *endpoints.Options) {
+			opt.DisableSSL = aws.BoolValue(cfg.DisableSSL)
+			opt.UseDualStack = aws.BoolValue(cfg.UseDualStack)
+		},
+	)
+	if err != nil {
+		r.Error = err
+		return
+	}
+
+	clientInfo.Endpoint = resolved.URL
+	clientInfo.SigningRegion = resolved.SigningRegion
+
+	// Presign a CopySnapshot request with modified params
+	req := request.New(*cfg, clientInfo, r.Handlers, r.Retryer, r.Operation, newParams, r.Data)
+	url, err := req.Presign(5 * time.Minute) // 5 minutes should be enough.
+	if err != nil {                          // bubble error back up to original request
+		r.Error = err
+		return
+	}
+
+	// We have our URL, set it on params
+	origParams.PresignedUrl = &url
+}