update prometheus dependencies (#5520)

Signed-off-by: junot <junotxiang@kubesphere.io>

vendor/github.com/prometheus/common/config/config.go

@@ -18,6 +18,7 @@ package config
 
 import (
 	"encoding/json"
+	"net/http"
 	"path/filepath"
 )
 
@@ -34,7 +35,7 @@ func (s Secret) MarshalYAML() (interface{}, error) {
 	return nil, nil
 }
 
-//UnmarshalYAML implements the yaml.Unmarshaler interface for Secrets.
+// UnmarshalYAML implements the yaml.Unmarshaler interface for Secrets.
 func (s *Secret) UnmarshalYAML(unmarshal func(interface{}) error) error {
 	type plain Secret
 	return unmarshal((*plain)(s))
@@ -48,6 +49,29 @@ func (s Secret) MarshalJSON() ([]byte, error) {
 	return json.Marshal(secretToken)
 }
 
+type Header map[string][]Secret
+
+func (h *Header) HTTPHeader() http.Header {
+	if h == nil || *h == nil {
+		return nil
+	}
+
+	header := make(http.Header)
+
+	for name, values := range *h {
+		var s []string
+		if values != nil {
+			s = make([]string, 0, len(values))
+			for _, value := range values {
+				s = append(s, string(value))
+			}
+		}
+		header[name] = s
+	}
+
+	return header
+}
+
 // DirectorySetter is a config type that contains file paths that may
 // be relative to the file containing the config.
 type DirectorySetter interface {

vendor/github.com/prometheus/common/config/http_config.go

@@ -21,10 +21,11 @@ import (
 	"crypto/x509"
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
 	"net"
 	"net/http"
 	"net/url"
+	"os"
+	"path/filepath"
 	"strings"
 	"sync"
 	"time"
@@ -80,7 +81,7 @@ func (tv *TLSVersion) UnmarshalYAML(unmarshal func(interface{}) error) error {
 }
 
 func (tv *TLSVersion) MarshalYAML() (interface{}, error) {
-	if tv != nil || *tv == 0 {
+	if tv == nil || *tv == 0 {
 		return []byte("null"), nil
 	}
 	for s, v := range TLSVersions {
@@ -106,7 +107,7 @@ func (tv *TLSVersion) UnmarshalJSON(data []byte) error {
 
 // MarshalJSON implements the json.Marshaler interface for TLSVersion.
 func (tv *TLSVersion) MarshalJSON() ([]byte, error) {
-	if tv != nil || *tv == 0 {
+	if tv == nil || *tv == 0 {
 		return []byte("null"), nil
 	}
 	for s, v := range TLSVersions {
@@ -117,6 +118,19 @@ func (tv *TLSVersion) MarshalJSON() ([]byte, error) {
 	return nil, fmt.Errorf("unknown TLS version: %d", tv)
 }
 
+// String implements the fmt.Stringer interface for TLSVersion.
+func (tv *TLSVersion) String() string {
+	if tv == nil || *tv == 0 {
+		return ""
+	}
+	for s, v := range TLSVersions {
+		if *tv == v {
+			return s
+		}
+	}
+	return fmt.Sprintf("%d", tv)
+}
+
 // BasicAuth contains basic HTTP authentication credentials.
 type BasicAuth struct {
 	Username     string `yaml:"username" json:"username"`
@@ -235,6 +249,30 @@ func (a *OAuth2) SetDirectory(dir string) {
 	a.TLSConfig.SetDirectory(dir)
 }
 
+// LoadHTTPConfig parses the YAML input s into a HTTPClientConfig.
+func LoadHTTPConfig(s string) (*HTTPClientConfig, error) {
+	cfg := &HTTPClientConfig{}
+	err := yaml.UnmarshalStrict([]byte(s), cfg)
+	if err != nil {
+		return nil, err
+	}
+	return cfg, nil
+}
+
+// LoadHTTPConfigFile parses the given YAML file into a HTTPClientConfig.
+func LoadHTTPConfigFile(filename string) (*HTTPClientConfig, []byte, error) {
+	content, err := os.ReadFile(filename)
+	if err != nil {
+		return nil, nil, err
+	}
+	cfg, err := LoadHTTPConfig(string(content))
+	if err != nil {
+		return nil, nil, err
+	}
+	cfg.SetDirectory(filepath.Dir(filepath.Dir(filename)))
+	return cfg, content, nil
+}
+
 // HTTPClientConfig configures an HTTP client.
 type HTTPClientConfig struct {
 	// The HTTP basic authentication credentials for the targets.
@@ -251,6 +289,11 @@ type HTTPClientConfig struct {
 	BearerTokenFile string `yaml:"bearer_token_file,omitempty" json:"bearer_token_file,omitempty"`
 	// HTTP proxy server to use to connect to the targets.
 	ProxyURL URL `yaml:"proxy_url,omitempty" json:"proxy_url,omitempty"`
+	// ProxyConnectHeader optionally specifies headers to send to
+	// proxies during CONNECT requests. Assume that at least _some_ of
+	// these headers are going to contain secrets and use Secret as the
+	// value type instead of string.
+	ProxyConnectHeader Header `yaml:"proxy_connect_header,omitempty" json:"proxy_connect_header,omitempty"`
 	// TLSConfig to use to connect to the targets.
 	TLSConfig TLSConfig `yaml:"tls_config,omitempty" json:"tls_config,omitempty"`
 	// FollowRedirects specifies whether the client should follow HTTP 3xx redirects.
@@ -276,7 +319,8 @@ func (c *HTTPClientConfig) SetDirectory(dir string) {
 }
 
 // Validate validates the HTTPClientConfig to check only one of BearerToken,
-// BasicAuth and BearerTokenFile is configured.
+// BasicAuth and BearerTokenFile is configured. It also validates that ProxyURL
+// is set if ProxyConnectHeader is set.
 func (c *HTTPClientConfig) Validate() error {
 	// Backwards compatibility with the bearer_token field.
 	if len(c.BearerToken) > 0 && len(c.BearerTokenFile) > 0 {
@@ -334,6 +378,9 @@ func (c *HTTPClientConfig) Validate() error {
 			return fmt.Errorf("at most one of oauth2 client_secret & client_secret_file must be configured")
 		}
 	}
+	if len(c.ProxyConnectHeader) > 0 && (c.ProxyURL.URL == nil || c.ProxyURL.String() == "") {
+		return fmt.Errorf("if proxy_connect_header is configured proxy_url must also be configured")
+	}
 	return nil
 }
 
@@ -462,6 +509,7 @@ func NewRoundTripperFromConfig(cfg HTTPClientConfig, name string, optFuncs ...HT
 		// It is applied on request. So we leave out any timings here.
 		var rt http.RoundTripper = &http.Transport{
 			Proxy:                 http.ProxyURL(cfg.ProxyURL.URL),
+			ProxyConnectHeader:    cfg.ProxyConnectHeader.HTTPHeader(),
 			MaxIdleConns:          20000,
 			MaxIdleConnsPerHost:   1000, // see https://github.com/golang/go/issues/13801
 			DisableKeepAlives:     !opts.keepAlivesEnabled,
@@ -527,7 +575,7 @@ func NewRoundTripperFromConfig(cfg HTTPClientConfig, name string, optFuncs ...HT
 		return newRT(tlsConfig)
 	}
 
-	return NewTLSRoundTripper(tlsConfig, cfg.TLSConfig.CAFile, newRT)
+	return NewTLSRoundTripper(tlsConfig, cfg.TLSConfig.CAFile, cfg.TLSConfig.CertFile, cfg.TLSConfig.KeyFile, newRT)
 }
 
 type authorizationCredentialsRoundTripper struct {
@@ -571,7 +619,7 @@ func NewAuthorizationCredentialsFileRoundTripper(authType, authCredentialsFile s
 
 func (rt *authorizationCredentialsFileRoundTripper) RoundTrip(req *http.Request) (*http.Response, error) {
 	if len(req.Header.Get("Authorization")) == 0 {
-		b, err := ioutil.ReadFile(rt.authCredentialsFile)
+		b, err := os.ReadFile(rt.authCredentialsFile)
 		if err != nil {
 			return nil, fmt.Errorf("unable to read authorization credentials file %s: %s", rt.authCredentialsFile, err)
 		}
@@ -609,7 +657,7 @@ func (rt *basicAuthRoundTripper) RoundTrip(req *http.Request) (*http.Response, e
 	}
 	req = cloneRequest(req)
 	if rt.passwordFile != "" {
-		bs, err := ioutil.ReadFile(rt.passwordFile)
+		bs, err := os.ReadFile(rt.passwordFile)
 		if err != nil {
 			return nil, fmt.Errorf("unable to read basic auth password file %s: %s", rt.passwordFile, err)
 		}
@@ -651,7 +699,7 @@ func (rt *oauth2RoundTripper) RoundTrip(req *http.Request) (*http.Response, erro
 	)
 
 	if rt.config.ClientSecretFile != "" {
-		data, err := ioutil.ReadFile(rt.config.ClientSecretFile)
+		data, err := os.ReadFile(rt.config.ClientSecretFile)
 		if err != nil {
 			return nil, fmt.Errorf("unable to read oauth2 client secret file %s: %s", rt.config.ClientSecretFile, err)
 		}
@@ -696,7 +744,7 @@ func (rt *oauth2RoundTripper) RoundTrip(req *http.Request) (*http.Response, erro
 		if len(rt.config.TLSConfig.CAFile) == 0 {
 			t, _ = tlsTransport(tlsConfig)
 		} else {
-			t, err = NewTLSRoundTripper(tlsConfig, rt.config.TLSConfig.CAFile, tlsTransport)
+			t, err = NewTLSRoundTripper(tlsConfig, rt.config.TLSConfig.CAFile, rt.config.TLSConfig.CertFile, rt.config.TLSConfig.KeyFile, tlsTransport)
 			if err != nil {
 				return nil, err
 			}
@@ -766,6 +814,13 @@ func NewTLSConfig(cfg *TLSConfig) (*tls.Config, error) {
 	tlsConfig := &tls.Config{
 		InsecureSkipVerify: cfg.InsecureSkipVerify,
 		MinVersion:         uint16(cfg.MinVersion),
+		MaxVersion:         uint16(cfg.MaxVersion),
+	}
+
+	if cfg.MaxVersion != 0 && cfg.MinVersion != 0 {
+		if cfg.MaxVersion < cfg.MinVersion {
+			return nil, fmt.Errorf("tls_config.max_version must be greater than or equal to tls_config.min_version if both are specified")
+		}
 	}
 
 	// If a CA cert is provided then let's read it in so we can validate the
@@ -813,6 +868,8 @@ type TLSConfig struct {
 	InsecureSkipVerify bool `yaml:"insecure_skip_verify" json:"insecure_skip_verify"`
 	// Minimum TLS version.
 	MinVersion TLSVersion `yaml:"min_version,omitempty" json:"min_version,omitempty"`
+	// Maximum TLS version.
+	MaxVersion TLSVersion `yaml:"max_version,omitempty" json:"max_version,omitempty"`
 }
 
 // SetDirectory joins any relative file paths with dir.
@@ -825,18 +882,45 @@ func (c *TLSConfig) SetDirectory(dir string) {
 	c.KeyFile = JoinDir(dir, c.KeyFile)
 }
 
+// UnmarshalYAML implements the yaml.Unmarshaler interface.
+func (c *TLSConfig) UnmarshalYAML(unmarshal func(interface{}) error) error {
+	type plain TLSConfig
+	return unmarshal((*plain)(c))
+}
+
+// readCertAndKey reads the cert and key files from the disk.
+func readCertAndKey(certFile, keyFile string) ([]byte, []byte, error) {
+	certData, err := os.ReadFile(certFile)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	keyData, err := os.ReadFile(keyFile)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	return certData, keyData, nil
+}
+
 // getClientCertificate reads the pair of client cert and key from disk and returns a tls.Certificate.
-func (c *TLSConfig) getClientCertificate(*tls.CertificateRequestInfo) (*tls.Certificate, error) {
-	cert, err := tls.LoadX509KeyPair(c.CertFile, c.KeyFile)
+func (c *TLSConfig) getClientCertificate(_ *tls.CertificateRequestInfo) (*tls.Certificate, error) {
+	certData, keyData, err := readCertAndKey(c.CertFile, c.KeyFile)
+	if err != nil {
+		return nil, fmt.Errorf("unable to read specified client cert (%s) & key (%s): %s", c.CertFile, c.KeyFile, err)
+	}
+
+	cert, err := tls.X509KeyPair(certData, keyData)
 	if err != nil {
 		return nil, fmt.Errorf("unable to use specified client cert (%s) & key (%s): %s", c.CertFile, c.KeyFile, err)
 	}
+
 	return &cert, nil
 }
 
 // readCAFile reads the CA cert file from disk.
 func readCAFile(f string) ([]byte, error) {
-	data, err := ioutil.ReadFile(f)
+	data, err := os.ReadFile(f)
 	if err != nil {
 		return nil, fmt.Errorf("unable to load specified CA cert %s: %s", f, err)
 	}
@@ -856,23 +940,30 @@ func updateRootCA(cfg *tls.Config, b []byte) bool {
 // tlsRoundTripper is a RoundTripper that updates automatically its TLS
 // configuration whenever the content of the CA file changes.
 type tlsRoundTripper struct {
-	caFile string
+	caFile   string
+	certFile string
+	keyFile  string
+
 	// newRT returns a new RoundTripper.
 	newRT func(*tls.Config) (http.RoundTripper, error)
 
-	mtx        sync.RWMutex
-	rt         http.RoundTripper
-	hashCAFile []byte
-	tlsConfig  *tls.Config
+	mtx          sync.RWMutex
+	rt           http.RoundTripper
+	hashCAFile   []byte
+	hashCertFile []byte
+	hashKeyFile  []byte
+	tlsConfig    *tls.Config
 }
 
 func NewTLSRoundTripper(
 	cfg *tls.Config,
-	caFile string,
+	caFile, certFile, keyFile string,
 	newRT func(*tls.Config) (http.RoundTripper, error),
 ) (http.RoundTripper, error) {
 	t := &tlsRoundTripper{
 		caFile:    caFile,
+		certFile:  certFile,
+		keyFile:   keyFile,
 		newRT:     newRT,
 		tlsConfig: cfg,
 	}
@@ -882,7 +973,7 @@ func NewTLSRoundTripper(
 		return nil, err
 	}
 	t.rt = rt
-	_, t.hashCAFile, err = t.getCAWithHash()
+	_, t.hashCAFile, t.hashCertFile, t.hashKeyFile, err = t.getTLSFilesWithHash()
 	if err != nil {
 		return nil, err
 	}
@@ -890,25 +981,36 @@ func NewTLSRoundTripper(
 	return t, nil
 }
 
-func (t *tlsRoundTripper) getCAWithHash() ([]byte, []byte, error) {
-	b, err := readCAFile(t.caFile)
+func (t *tlsRoundTripper) getTLSFilesWithHash() ([]byte, []byte, []byte, []byte, error) {
+	b1, err := readCAFile(t.caFile)
 	if err != nil {
-		return nil, nil, err
+		return nil, nil, nil, nil, err
 	}
-	h := sha256.Sum256(b)
-	return b, h[:], nil
+	h1 := sha256.Sum256(b1)
 
+	var h2, h3 [32]byte
+	if t.certFile != "" {
+		b2, b3, err := readCertAndKey(t.certFile, t.keyFile)
+		if err != nil {
+			return nil, nil, nil, nil, err
+		}
+		h2, h3 = sha256.Sum256(b2), sha256.Sum256(b3)
+	}
+
+	return b1, h1[:], h2[:], h3[:], nil
 }
 
 // RoundTrip implements the http.RoundTrip interface.
 func (t *tlsRoundTripper) RoundTrip(req *http.Request) (*http.Response, error) {
-	b, h, err := t.getCAWithHash()
+	caData, caHash, certHash, keyHash, err := t.getTLSFilesWithHash()
 	if err != nil {
 		return nil, err
 	}
 
 	t.mtx.RLock()
-	equal := bytes.Equal(h[:], t.hashCAFile)
+	equal := bytes.Equal(caHash[:], t.hashCAFile) &&
+		bytes.Equal(certHash[:], t.hashCertFile) &&
+		bytes.Equal(keyHash[:], t.hashKeyFile)
 	rt := t.rt
 	t.mtx.RUnlock()
 	if equal {
@@ -917,8 +1019,10 @@ func (t *tlsRoundTripper) RoundTrip(req *http.Request) (*http.Response, error) {
 	}
 
 	// Create a new RoundTripper.
+	// The cert and key files are read separately by the client
+	// using GetClientCertificate.
 	tlsConfig := t.tlsConfig.Clone()
-	if !updateRootCA(tlsConfig, b) {
+	if !updateRootCA(tlsConfig, caData) {
 		return nil, fmt.Errorf("unable to use specified CA cert %s", t.caFile)
 	}
 	rt, err = t.newRT(tlsConfig)
@@ -929,7 +1033,9 @@ func (t *tlsRoundTripper) RoundTrip(req *http.Request) (*http.Response, error) {
 
 	t.mtx.Lock()
 	t.rt = rt
-	t.hashCAFile = h[:]
+	t.hashCAFile = caHash[:]
+	t.hashCertFile = certHash[:]
+	t.hashKeyFile = keyHash[:]
 	t.mtx.Unlock()
 
 	return rt.RoundTrip(req)

vendor/github.com/prometheus/common/expfmt/fuzz.go

@@ -21,8 +21,8 @@ import "bytes"
 
 // Fuzz text metric parser with with github.com/dvyukov/go-fuzz:
 //
-//     go-fuzz-build github.com/prometheus/common/expfmt
-//     go-fuzz -bin expfmt-fuzz.zip -workdir fuzz
+//	go-fuzz-build github.com/prometheus/common/expfmt
+//	go-fuzz -bin expfmt-fuzz.zip -workdir fuzz
 //
 // Further input samples should go in the folder fuzz/corpus.
 func Fuzz(in []byte) int {

vendor/github.com/prometheus/common/expfmt/openmetrics_create.go

@@ -46,20 +46,20 @@ import (
 // missing features and peculiarities to avoid complications when switching from
 // Prometheus to OpenMetrics or vice versa:
 //
-// - Counters are expected to have the `_total` suffix in their metric name. In
-//   the output, the suffix will be truncated from the `# TYPE` and `# HELP`
-//   line. A counter with a missing `_total` suffix is not an error. However,
-//   its type will be set to `unknown` in that case to avoid invalid OpenMetrics
-//   output.
+//   - Counters are expected to have the `_total` suffix in their metric name. In
+//     the output, the suffix will be truncated from the `# TYPE` and `# HELP`
+//     line. A counter with a missing `_total` suffix is not an error. However,
+//     its type will be set to `unknown` in that case to avoid invalid OpenMetrics
+//     output.
 //
-// - No support for the following (optional) features: `# UNIT` line, `_created`
-//   line, info type, stateset type, gaugehistogram type.
+//   - No support for the following (optional) features: `# UNIT` line, `_created`
+//     line, info type, stateset type, gaugehistogram type.
 //
-// - The size of exemplar labels is not checked (i.e. it's possible to create
-//   exemplars that are larger than allowed by the OpenMetrics specification).
+//   - The size of exemplar labels is not checked (i.e. it's possible to create
+//     exemplars that are larger than allowed by the OpenMetrics specification).
 //
-// - The value of Counters is not checked. (OpenMetrics doesn't allow counters
-//   with a `NaN` value.)
+//   - The value of Counters is not checked. (OpenMetrics doesn't allow counters
+//     with a `NaN` value.)
 func MetricFamilyToOpenMetrics(out io.Writer, in *dto.MetricFamily) (written int, err error) {
 	name := in.GetName()
 	if name == "" {

vendor/github.com/prometheus/common/expfmt/text_create.go

@@ -17,7 +17,6 @@ import (
 	"bufio"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"math"
 	"strconv"
 	"strings"
@@ -44,7 +43,7 @@ const (
 var (
 	bufPool = sync.Pool{
 		New: func() interface{} {
-			return bufio.NewWriter(ioutil.Discard)
+			return bufio.NewWriter(io.Discard)
 		},
 	}
 	numBufPool = sync.Pool{

vendor/github.com/prometheus/common/internal/bitbucket.org/ww/goautoneg/autoneg.go

@@ -11,18 +11,18 @@ Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are
 met:
 
-    Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
+	Redistributions of source code must retain the above copyright
+	notice, this list of conditions and the following disclaimer.
 
-    Redistributions in binary form must reproduce the above copyright
-    notice, this list of conditions and the following disclaimer in
-    the documentation and/or other materials provided with the
-    distribution.
+	Redistributions in binary form must reproduce the above copyright
+	notice, this list of conditions and the following disclaimer in
+	the documentation and/or other materials provided with the
+	distribution.
 
-    Neither the name of the Open Knowledge Foundation Ltd. nor the
-    names of its contributors may be used to endorse or promote
-    products derived from this software without specific prior written
-    permission.
+	Neither the name of the Open Knowledge Foundation Ltd. nor the
+	names of its contributors may be used to endorse or promote
+	products derived from this software without specific prior written
+	permission.
 
 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
@@ -35,8 +35,6 @@ DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
 */
 package goautoneg
 

vendor/github.com/prometheus/common/sigv4/LICENSE

@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
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+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
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+      copyright license to reproduce, prepare Derivative Works of,
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+      Work and such Derivative Works in Source or Object form.
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+      (except as stated in this section) patent license to make, have made,
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+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
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+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
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+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
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+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
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+          of the following places: within a NOTICE text file distributed
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+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
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+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
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+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

vendor/github.com/prometheus/common/sigv4/Makefile

@@ -0,0 +1,22 @@
+# Copyright 2018 The Prometheus Authors
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+include ../Makefile.common
+
+.PHONY: test
+	@echo ">> Running sigv4 tests"
+	test:: deps check_license unused common-test
+
+ifeq (,$(shell echo $(GO_VERSION_NUMBER) | grep -E 'go1\.(7|8|9|10)\.'))
+test:: lint
+endif

vendor/github.com/prometheus/common/sigv4/sigv4.go

@@ -0,0 +1,137 @@
+// Copyright 2021 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package sigv4
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"net/http"
+	"net/textproto"
+	"sync"
+	"time"
+
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/aws/credentials"
+	"github.com/aws/aws-sdk-go/aws/credentials/stscreds"
+	"github.com/aws/aws-sdk-go/aws/session"
+	signer "github.com/aws/aws-sdk-go/aws/signer/v4"
+)
+
+var sigv4HeaderDenylist = []string{
+	"uber-trace-id",
+}
+
+type sigV4RoundTripper struct {
+	region string
+	next   http.RoundTripper
+	pool   sync.Pool
+
+	signer *signer.Signer
+}
+
+// NewSigV4RoundTripper returns a new http.RoundTripper that will sign requests
+// using Amazon's Signature Verification V4 signing procedure. The request will
+// then be handed off to the next RoundTripper provided by next. If next is nil,
+// http.DefaultTransport will be used.
+//
+// Credentials for signing are retrieved using the the default AWS credential
+// chain. If credentials cannot be found, an error will be returned.
+func NewSigV4RoundTripper(cfg *SigV4Config, next http.RoundTripper) (http.RoundTripper, error) {
+	if next == nil {
+		next = http.DefaultTransport
+	}
+
+	creds := credentials.NewStaticCredentials(cfg.AccessKey, string(cfg.SecretKey), "")
+	if cfg.AccessKey == "" && cfg.SecretKey == "" {
+		creds = nil
+	}
+
+	sess, err := session.NewSessionWithOptions(session.Options{
+		Config: aws.Config{
+			Region:      aws.String(cfg.Region),
+			Credentials: creds,
+		},
+		Profile: cfg.Profile,
+	})
+	if err != nil {
+		return nil, fmt.Errorf("could not create new AWS session: %w", err)
+	}
+	if _, err := sess.Config.Credentials.Get(); err != nil {
+		return nil, fmt.Errorf("could not get SigV4 credentials: %w", err)
+	}
+	if aws.StringValue(sess.Config.Region) == "" {
+		return nil, fmt.Errorf("region not configured in sigv4 or in default credentials chain")
+	}
+
+	signerCreds := sess.Config.Credentials
+	if cfg.RoleARN != "" {
+		signerCreds = stscreds.NewCredentials(sess, cfg.RoleARN)
+	}
+
+	rt := &sigV4RoundTripper{
+		region: cfg.Region,
+		next:   next,
+		signer: signer.NewSigner(signerCreds),
+	}
+	rt.pool.New = rt.newBuf
+	return rt, nil
+}
+
+func (rt *sigV4RoundTripper) newBuf() interface{} {
+	return bytes.NewBuffer(make([]byte, 0, 1024))
+}
+
+func (rt *sigV4RoundTripper) RoundTrip(req *http.Request) (*http.Response, error) {
+	// rt.signer.Sign needs a seekable body, so we replace the body with a
+	// buffered reader filled with the contents of original body.
+	buf := rt.pool.Get().(*bytes.Buffer)
+	defer func() {
+		buf.Reset()
+		rt.pool.Put(buf)
+	}()
+	if _, err := io.Copy(buf, req.Body); err != nil {
+		return nil, err
+	}
+	// Close the original body since we don't need it anymore.
+	_ = req.Body.Close()
+
+	// Ensure our seeker is back at the start of the buffer once we return.
+	var seeker io.ReadSeeker = bytes.NewReader(buf.Bytes())
+	defer func() {
+		_, _ = seeker.Seek(0, io.SeekStart)
+	}()
+	req.Body = ioutil.NopCloser(seeker)
+
+	// Clone the request and trim out headers that we don't want to sign.
+	signReq := req.Clone(req.Context())
+	for _, header := range sigv4HeaderDenylist {
+		signReq.Header.Del(header)
+	}
+
+	headers, err := rt.signer.Sign(signReq, seeker, "aps", rt.region, time.Now().UTC())
+	if err != nil {
+		return nil, fmt.Errorf("failed to sign request: %w", err)
+	}
+
+	// Copy over signed headers. Authorization header is not returned by
+	// rt.signer.Sign and needs to be copied separately.
+	for k, v := range headers {
+		req.Header[textproto.CanonicalMIMEHeaderKey(k)] = v
+	}
+	req.Header.Set("Authorization", signReq.Header.Get("Authorization"))
+
+	return rt.next.RoundTrip(req)
+}

vendor/github.com/prometheus/common/sigv4/sigv4_config.go

@@ -0,0 +1,47 @@
+// Copyright 2021 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package sigv4
+
+import (
+	"fmt"
+
+	"github.com/prometheus/common/config"
+)
+
+// SigV4Config is the configuration for signing remote write requests with
+// AWS's SigV4 verification process. Empty values will be retrieved using the
+// AWS default credentials chain.
+type SigV4Config struct {
+	Region    string        `yaml:"region,omitempty"`
+	AccessKey string        `yaml:"access_key,omitempty"`
+	SecretKey config.Secret `yaml:"secret_key,omitempty"`
+	Profile   string        `yaml:"profile,omitempty"`
+	RoleARN   string        `yaml:"role_arn,omitempty"`
+}
+
+func (c *SigV4Config) Validate() error {
+	if (c.AccessKey == "") != (c.SecretKey == "") {
+		return fmt.Errorf("must provide a AWS SigV4 Access key and Secret Key if credentials are specified in the SigV4 config")
+	}
+	return nil
+}
+
+func (c *SigV4Config) UnmarshalYAML(unmarshal func(interface{}) error) error {
+	type plain SigV4Config
+	*c = SigV4Config{}
+	if err := unmarshal((*plain)(c)); err != nil {
+		return err
+	}
+	return c.Validate()
+}

vendor/github.com/prometheus/common/version/info.go

@@ -0,0 +1,100 @@
+// Copyright 2016 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package version
+
+import (
+	"bytes"
+	"fmt"
+	"runtime"
+	"strings"
+	"text/template"
+
+	"github.com/prometheus/client_golang/prometheus"
+)
+
+// Build information. Populated at build-time.
+var (
+	Version   string
+	Revision  string
+	Branch    string
+	BuildUser string
+	BuildDate string
+	GoVersion = runtime.Version()
+	GoOS      = runtime.GOOS
+	GoArch    = runtime.GOARCH
+)
+
+// NewCollector returns a collector that exports metrics about current version
+// information.
+func NewCollector(program string) prometheus.Collector {
+	return prometheus.NewGaugeFunc(
+		prometheus.GaugeOpts{
+			Namespace: program,
+			Name:      "build_info",
+			Help: fmt.Sprintf(
+				"A metric with a constant '1' value labeled by version, revision, branch, goversion from which %s was built, and the goos and goarch for the build.",
+				program,
+			),
+			ConstLabels: prometheus.Labels{
+				"version":   Version,
+				"revision":  getRevision(),
+				"branch":    Branch,
+				"goversion": GoVersion,
+				"goos":      GoOS,
+				"goarch":    GoArch,
+			},
+		},
+		func() float64 { return 1 },
+	)
+}
+
+// versionInfoTmpl contains the template used by Info.
+var versionInfoTmpl = `
+{{.program}}, version {{.version}} (branch: {{.branch}}, revision: {{.revision}})
+  build user:       {{.buildUser}}
+  build date:       {{.buildDate}}
+  go version:       {{.goVersion}}
+  platform:         {{.platform}}
+`
+
+// Print returns version information.
+func Print(program string) string {
+	m := map[string]string{
+		"program":   program,
+		"version":   Version,
+		"revision":  getRevision(),
+		"branch":    Branch,
+		"buildUser": BuildUser,
+		"buildDate": BuildDate,
+		"goVersion": GoVersion,
+		"platform":  GoOS + "/" + GoArch,
+	}
+	t := template.Must(template.New("version").Parse(versionInfoTmpl))
+
+	var buf bytes.Buffer
+	if err := t.ExecuteTemplate(&buf, "version", m); err != nil {
+		panic(err)
+	}
+	return strings.TrimSpace(buf.String())
+}
+
+// Info returns version, branch and revision information.
+func Info() string {
+	return fmt.Sprintf("(version=%s, branch=%s, revision=%s)", Version, Branch, getRevision())
+}
+
+// BuildContext returns goVersion, platform, buildUser and buildDate information.
+func BuildContext() string {
+	return fmt.Sprintf("(go=%s, platform=%s, user=%s, date=%s)", GoVersion, GoOS+"/"+GoArch, BuildUser, BuildDate)
+}

vendor/github.com/prometheus/common/version/info_default.go

@@ -0,0 +1,21 @@
+// Copyright 2022 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//go:build !go1.18
+// +build !go1.18
+
+package version
+
+func getRevision() string {
+	return Revision
+}

vendor/github.com/prometheus/common/version/info_go118.go

@@ -0,0 +1,58 @@
+// Copyright 2022 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//go:build go1.18
+// +build go1.18
+
+package version
+
+import "runtime/debug"
+
+var computedRevision string
+
+func getRevision() string {
+	if Revision != "" {
+		return Revision
+	}
+	return computedRevision
+}
+
+func init() {
+	computedRevision = computeRevision()
+}
+
+func computeRevision() string {
+	var (
+		rev      = "unknown"
+		modified bool
+	)
+
+	buildInfo, ok := debug.ReadBuildInfo()
+	if !ok {
+		return rev
+	}
+	for _, v := range buildInfo.Settings {
+		if v.Key == "vcs.revision" {
+			rev = v.Value
+		}
+		if v.Key == "vcs.modified" {
+			if v.Value == "true" {
+				modified = true
+			}
+		}
+	}
+	if modified {
+		return rev + "-modified"
+	}
+	return rev
+}