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/private/protocol/timestamp.go

@@ -0,0 +1,85 @@
+package protocol
+
+import (
+	"math"
+	"strconv"
+	"time"
+
+	"github.com/aws/aws-sdk-go/internal/sdkmath"
+)
+
+// Names of time formats supported by the SDK
+const (
+	RFC822TimeFormatName  = "rfc822"
+	ISO8601TimeFormatName = "iso8601"
+	UnixTimeFormatName    = "unixTimestamp"
+)
+
+// Time formats supported by the SDK
+// Output time is intended to not contain decimals
+const (
+	// RFC 7231#section-7.1.1.1 timetamp format. e.g Tue, 29 Apr 2014 18:30:38 GMT
+	RFC822TimeFormat = "Mon, 2 Jan 2006 15:04:05 GMT"
+
+	// This format is used for output time without seconds precision
+	RFC822OutputTimeFormat = "Mon, 02 Jan 2006 15:04:05 GMT"
+
+	// RFC3339 a subset of the ISO8601 timestamp format. e.g 2014-04-29T18:30:38Z
+	ISO8601TimeFormat = "2006-01-02T15:04:05.999999999Z"
+
+	// This format is used for output time with fractional second precision up to milliseconds
+	ISO8601OutputTimeFormat = "2006-01-02T15:04:05.999999999Z"
+)
+
+// IsKnownTimestampFormat returns if the timestamp format name
+// is know to the SDK's protocols.
+func IsKnownTimestampFormat(name string) bool {
+	switch name {
+	case RFC822TimeFormatName:
+		fallthrough
+	case ISO8601TimeFormatName:
+		fallthrough
+	case UnixTimeFormatName:
+		return true
+	default:
+		return false
+	}
+}
+
+// FormatTime returns a string value of the time.
+func FormatTime(name string, t time.Time) string {
+	t = t.UTC().Truncate(time.Millisecond)
+
+	switch name {
+	case RFC822TimeFormatName:
+		return t.Format(RFC822OutputTimeFormat)
+	case ISO8601TimeFormatName:
+		return t.Format(ISO8601OutputTimeFormat)
+	case UnixTimeFormatName:
+		ms := t.UnixNano() / int64(time.Millisecond)
+		return strconv.FormatFloat(float64(ms)/1e3, 'f', -1, 64)
+	default:
+		panic("unknown timestamp format name, " + name)
+	}
+}
+
+// ParseTime attempts to parse the time given the format. Returns
+// the time if it was able to be parsed, and fails otherwise.
+func ParseTime(formatName, value string) (time.Time, error) {
+	switch formatName {
+	case RFC822TimeFormatName:
+		return time.Parse(RFC822TimeFormat, value)
+	case ISO8601TimeFormatName:
+		return time.Parse(ISO8601TimeFormat, value)
+	case UnixTimeFormatName:
+		v, err := strconv.ParseFloat(value, 64)
+		_, dec := math.Modf(v)
+		dec = sdkmath.Round(dec*1e3) / 1e3 //Rounds 0.1229999 to 0.123
+		if err != nil {
+			return time.Time{}, err
+		}
+		return time.Unix(int64(v), int64(dec*(1e9))), nil
+	default:
+		panic("unknown timestamp format name, " + formatName)
+	}
+}