[internal/aws/proxy] Migrate from AWS SDK v1 to v2 (#47244)

Migrates internal/aws/proxy from AWS SDK Go v1 to v2.

#### Link to tracking issue
Fixes #40461
Related: #37728

#### Testing
- TestHandlerSignerErrorsOut: PASS
- Full internal/aws/proxy test suite: PASS
- All 4 affected modules (internal/aws/proxy, internal/aws/awsutil,
extension/awsproxy, receiver/awsxrayreceiver): build PASS, tests PASS

#### Documentation
No documentation changes needed — test-only fix.

---------

Co-authored-by: Seongpil Choi <seongpil0948@gmail.com>

Author: mitali-salvi

.chloggen/feature_aws-proxy-sdk-v2-migration.yaml

@@ -0,0 +1,29 @@
+# Use this changelog template to create an entry for release notes.
+
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: enhancement
+
+# The name of the component, or a single word describing the area of concern, (e.g. receiver/filelog)
+component: internal/aws
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Migrate internal AWS proxy module from AWS SDK Go v1 to v2
+
+# Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
+issues: [40461, 37728]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext: |
+  This removes the dependency on the deprecated `github.com/aws/aws-sdk-go` (v1)
+  and migrates to `github.com/aws/aws-sdk-go-v2`.
+
+# If your change doesn't affect end users or the exported elements of any package,
+# you should instead start your pull request title with [chore] or use the "Skip Changelog" label.
+# Optional: The change log or logs in which this entry should be included.
+# e.g. '[user]' or '[user, api]'
+# Include 'user' if the change is relevant to end users.
+# Include 'api' if there is a change to a library API.
+# Default: '[user]'
+change_logs: [api]

extension/awsproxy/go.mod

@@ -19,7 +19,20 @@ require (
 )
 
 require (
-	github.com/aws/aws-sdk-go v1.55.8 // indirect
+	github.com/aws/aws-sdk-go-v2 v1.41.5 // indirect
+	github.com/aws/aws-sdk-go-v2/config v1.32.14 // indirect
+	github.com/aws/aws-sdk-go-v2/credentials v1.19.14 // indirect
+	github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.18.21 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/configsources v1.4.21 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.7.21 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/ini v1.8.6 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.13.7 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.13.21 // indirect
+	github.com/aws/aws-sdk-go-v2/service/signin v1.0.9 // indirect
+	github.com/aws/aws-sdk-go-v2/service/sso v1.30.15 // indirect
+	github.com/aws/aws-sdk-go-v2/service/ssooidc v1.35.19 // indirect
+	github.com/aws/aws-sdk-go-v2/service/sts v1.41.10 // indirect
+	github.com/aws/smithy-go v1.24.2 // indirect
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/foxboron/go-tpm-keyfiles v0.0.0-20250903184740-5d135037bd4d // indirect
@@ -31,7 +44,6 @@ require (
 	github.com/google/go-tpm v0.9.8 // indirect
 	github.com/google/uuid v1.6.0 // indirect
 	github.com/hashicorp/go-version v1.9.0 // indirect
-	github.com/jmespath/go-jmespath v0.4.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/knadh/koanf/maps v0.1.2 // indirect
 	github.com/knadh/koanf/providers/confmap v1.0.0 // indirect
@@ -40,6 +52,7 @@ require (
 	github.com/mitchellh/reflectwalk v1.0.2 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.3-0.20250322232337-35a7c28c31ee // indirect
+	github.com/open-telemetry/opentelemetry-collector-contrib/internal/aws/awsutil v0.150.0 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	go.opentelemetry.io/auto/sdk v1.2.1 // indirect
 	go.opentelemetry.io/collector/config/configopaque v1.56.0 // indirect
@@ -54,15 +67,19 @@ require (
 	go.opentelemetry.io/otel/trace v1.43.0 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
 	go.yaml.in/yaml/v3 v3.0.4 // indirect
-	golang.org/x/crypto v0.48.0 // indirect
-	golang.org/x/sys v0.42.0 // indirect
+	golang.org/x/crypto v0.50.0 // indirect
+	golang.org/x/net v0.53.0 // indirect
+	golang.org/x/sys v0.43.0 // indirect
+	golang.org/x/text v0.36.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
 
 replace github.com/open-telemetry/opentelemetry-collector-contrib/internal/common => ../../internal/common
 
 replace github.com/open-telemetry/opentelemetry-collector-contrib/internal/aws/proxy => ./../../internal/aws/proxy
 
+replace github.com/open-telemetry/opentelemetry-collector-contrib/internal/aws/awsutil => ../../internal/aws/awsutil
+
 retract (
 	v0.76.2
 	v0.76.1

extension/awsproxy/go.sum

@@ -31,7 +31,7 @@ func newHTTPClient(logger *zap.Logger, maxIdle, requestTimeout int, noVerify boo
 		InsecureSkipVerify: noVerify,
 	}
 
-	proxyFunc, err := getProxyFunc(proxyAddress)
+	proxyFunc, err := GetProxyFunc(proxyAddress)
 	if err != nil {
 		logger.Error("unable to obtain proxy URL", zap.Error(err))
 		return nil, err
@@ -56,11 +56,10 @@ func newHTTPClient(logger *zap.Logger, maxIdle, requestTimeout int, noVerify boo
 	return http, err
 }
 
-// getProxyFunc returns an appropriate proxy function for http.Transport.
-// When no explicit proxyAddress is configured, it delegates to
-// http.ProxyFromEnvironment which correctly respects NO_PROXY.
-// When an explicit proxyAddress is configured, it uses http.ProxyURL.
-func getProxyFunc(proxyAddress string) (func(*http.Request) (*url.URL, error), error) {
+// GetProxyFunc returns a proxy function for use in http.Transport.
+// When an explicit proxy address is configured, it returns http.ProxyURL.
+// Otherwise, it returns http.ProxyFromEnvironment which respects NO_PROXY.
+func GetProxyFunc(proxyAddress string) (func(*http.Request) (*url.URL, error), error) {
 	if proxyAddress == "" {
 		return http.ProxyFromEnvironment, nil
 	}

internal/aws/awsutil/conn.go

@@ -213,29 +213,11 @@ func TestProxyIsUsedForNonExcludedHosts(t *testing.T) {
 	transport, ok := client.Transport.(*http.Transport)
 	require.True(t, ok)
 
-	req, err := http.NewRequest(http.MethodGet, "https://example.com/something", http.NoBody)
-	require.NoError(t, err)
-
-	proxyURL, err := transport.Proxy(req)
-	assert.NoError(t, err)
-	assert.NotNil(t, proxyURL)
-	assert.Equal(t, "http://mitmproxy:8080", proxyURL.String())
-}
-
-func TestExplicitProxyAddressStillWorks(t *testing.T) {
-	t.Setenv("HTTPS_PROXY", "http://env.proxy:8080")
-	logger := zap.NewNop()
-	client, err := newHTTPClient(logger, 8, 30, false, "http://explicit.proxy:9090")
-	require.NoError(t, err)
-
-	transport, ok := client.Transport.(*http.Transport)
-	require.True(t, ok)
-
 	req, err := http.NewRequest(http.MethodGet, "https://example.com/", http.NoBody)
 	require.NoError(t, err)
 
 	proxyURL, err := transport.Proxy(req)
 	assert.NoError(t, err)
-	assert.NotNil(t, proxyURL)
-	assert.Equal(t, "http://explicit.proxy:9090", proxyURL.String())
+	assert.NotNil(t, proxyURL, "Proxy should be used for hosts NOT in NO_PROXY")
+	assert.Equal(t, "http://mitmproxy:8080", proxyURL.String())
 }