[all] Promote component.UseLocalHostAsDefaultHost feature gate to beta

.chloggen/mx-psi_localhost-fg.yaml

@@ -0,0 +1,45 @@
+# Use this changelog template to create an entry for release notes.
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: breaking
+
+# The name of the component, or a single word describing the area of concern, (e.g. filelogreceiver)
+component: all
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: "Promote `component.UseLocalHostAsDefaultHost` feature gate to beta. This changes default endpoints from 0.0.0.0 to localhost"
+
+# Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
+issues: [30702]
+
+# (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 change affects the following components:
+    - extension/awsproxy
+    - extension/health_check
+    - extension/health_checkv2
+    - extension/jaegerremotesampling
+    - internal/aws/proxy
+    - processor/remotetap
+    - receiver/awsfirehose
+    - receiver/awsxray
+    - receiver/influxdb
+    - receiver/jaeger
+    - receiver/loki
+    - receiver/opencensus
+    - receiver/sapm
+    - receiver/signalfx
+    - receiver/skywalking
+    - receiver/splunk_hec
+    - receiver/zipkin
+    - receiver/zookeeper
+
+# 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: []

extension/awsproxy/factory_test.go

@@ -28,7 +28,7 @@ func TestFactory_CreateDefaultConfig(t *testing.T) {
 	assert.Equal(t, &Config{
 		ProxyConfig: proxy.Config{
 			TCPAddrConfig: confignet.TCPAddrConfig{
-				Endpoint: "0.0.0.0:2000",
+				Endpoint: "localhost:2000",
 			},
 		},
 	}, cfg)

extension/healthcheckextension/factory_test.go

@@ -20,7 +20,7 @@ func TestFactory_CreateDefaultConfig(t *testing.T) {
 	cfg := createDefaultConfig()
 	assert.Equal(t, &Config{
 		ServerConfig: confighttp.ServerConfig{
-			Endpoint: "0.0.0.0:13133",
+			Endpoint: "localhost:13133",
 		},
 		CheckCollectorPipeline: defaultCheckCollectorPipelineSettings(),
 		Path:                   "/",

extension/jaegerremotesampling/config_test.go

@@ -29,9 +29,9 @@ func TestLoadConfig(t *testing.T) {
 		{
 			id: component.NewID(metadata.Type),
 			expected: &Config{
-				HTTPServerConfig: &confighttp.ServerConfig{Endpoint: "0.0.0.0:5778"},
+				HTTPServerConfig: &confighttp.ServerConfig{Endpoint: "localhost:5778"},
 				GRPCServerConfig: &configgrpc.ServerConfig{NetAddr: confignet.AddrConfig{
-					Endpoint:  "0.0.0.0:14250",
+					Endpoint:  "localhost:14250",
 					Transport: confignet.TransportTypeTCP,
 				}},
 				Source: Source{
@@ -44,9 +44,9 @@ func TestLoadConfig(t *testing.T) {
 		{
 			id: component.NewIDWithName(metadata.Type, "1"),
 			expected: &Config{
-				HTTPServerConfig: &confighttp.ServerConfig{Endpoint: "0.0.0.0:5778"},
+				HTTPServerConfig: &confighttp.ServerConfig{Endpoint: "localhost:5778"},
 				GRPCServerConfig: &configgrpc.ServerConfig{NetAddr: confignet.AddrConfig{
-					Endpoint:  "0.0.0.0:14250",
+					Endpoint:  "localhost:14250",
 					Transport: confignet.TransportTypeTCP,
 				}},
 				Source: Source{

extension/jaegerremotesampling/factory_test.go

@@ -18,9 +18,9 @@ import (
 func TestCreateDefaultConfig(t *testing.T) {
 	// prepare and test
 	expected := &Config{
-		HTTPServerConfig: &confighttp.ServerConfig{Endpoint: "0.0.0.0:5778"},
+		HTTPServerConfig: &confighttp.ServerConfig{Endpoint: "localhost:5778"},
 		GRPCServerConfig: &configgrpc.ServerConfig{NetAddr: confignet.AddrConfig{
-			Endpoint:  "0.0.0.0:14250",
+			Endpoint:  "localhost:14250",
 			Transport: confignet.TransportTypeTCP,
 		}},
 	}

internal/common/localhostgate/featuregate.go

@@ -23,7 +23,7 @@ const UseLocalHostAsDefaultHostID = "component.UseLocalHostAsDefaultHost"
 var UseLocalHostAsDefaultHostfeatureGate = mustRegisterOrLoad(
 	featuregate.GlobalRegistry(),
 	UseLocalHostAsDefaultHostID,
-	featuregate.StageAlpha,
+	featuregate.StageBeta,
 	featuregate.WithRegisterDescription("controls whether server-like receivers and extensions such as the OTLP receiver use localhost as the default host for their endpoints"),
 )
 
@@ -60,8 +60,8 @@ func EndpointForPort(port int) string {
 // LogAboutUseLocalHostAsDefault logs about the upcoming change from 0.0.0.0 to localhost on server-like components.
 func LogAboutUseLocalHostAsDefault(logger *zap.Logger) {
 	if !UseLocalHostAsDefaultHostfeatureGate.IsEnabled() {
-		logger.Warn(
-			"The default endpoints for all servers in components will change to use localhost instead of 0.0.0.0 in a future version. Use the feature gate to preview the new default.",
+		logger.Info(
+			"The default endpoints for all servers in components have changed to use localhost instead of 0.0.0.0. Use the feature gate to temporarily revert to the previous default.",
 			zap.String("feature gate ID", UseLocalHostAsDefaultHostID),
 		)
 	}

processor/k8sattributesprocessor/testdata/e2e/clusterrbac/collector/configmap.yaml

@@ -11,7 +11,8 @@ data:
         tls:
           insecure: true
     extensions:
-      health_check: {}
+      health_check:
+        endpoint: 0.0.0.0:13133
     processors:
       k8sattributes:
         extract:

processor/k8sattributesprocessor/testdata/e2e/mixrbac/collector/configmap.yaml

@@ -11,7 +11,8 @@ data:
         tls:
           insecure: true
     extensions:
-      health_check: {}
+      health_check:
+        endpoint: 0.0.0.0:13133
     processors:
       k8sattributes:
         filter:

processor/k8sattributesprocessor/testdata/e2e/namespaced_rbac_no_pod_ip/collector/configmap.yaml

@@ -11,7 +11,8 @@ data:
         tls:
           insecure: true
     extensions:
-      health_check: {}
+      health_check:
+        endpoint: 0.0.0.0:13133
     processors:
       k8sattributes:
         filter:

processor/k8sattributesprocessor/testdata/e2e/namespacedrbac/collector/configmap.yaml

@@ -11,7 +11,8 @@ data:
         tls:
           insecure: true
     extensions:
-      health_check: {}
+      health_check:
+        endpoint: 0.0.0.0:13133
     processors:
       k8sattributes:
         filter:

processor/remotetapprocessor/config_test.go

@@ -11,6 +11,6 @@ import (
 
 func TestCreateDefaultConfig(t *testing.T) {
 	cfg := createDefaultConfig().(*Config)
-	assert.Equal(t, "0.0.0.0:12001", cfg.Endpoint)
+	assert.Equal(t, "localhost:12001", cfg.Endpoint)
 	assert.EqualValues(t, 1, cfg.Limit)
 }

receiver/awsxrayreceiver/config_test.go

@@ -41,7 +41,7 @@ func TestLoadConfig(t *testing.T) {
 				},
 				ProxyServer: &proxy.Config{
 					TCPAddrConfig: confignet.TCPAddrConfig{
-						Endpoint: "0.0.0.0:2000",
+						Endpoint: "localhost:2000",
 					},
 					ProxyAddress: "",
 					TLSSetting: configtls.ClientConfig{
@@ -59,7 +59,7 @@ func TestLoadConfig(t *testing.T) {
 			id: component.NewIDWithName(metadata.Type, "proxy_server"),
 			expected: &Config{
 				AddrConfig: confignet.AddrConfig{
-					Endpoint:  "0.0.0.0:2000",
+					Endpoint:  "localhost:2000",
 					Transport: confignet.TransportTypeUDP,
 				},
 				ProxyServer: &proxy.Config{

receiver/jaegerreceiver/config_test.go

@@ -69,19 +69,19 @@ func TestLoadConfig(t *testing.T) {
 				Protocols: Protocols{
 					GRPC: &configgrpc.ServerConfig{
 						NetAddr: confignet.AddrConfig{
-							Endpoint:  "0.0.0.0:14250",
+							Endpoint:  "localhost:14250",
 							Transport: confignet.TransportTypeTCP,
 						},
 					},
 					ThriftHTTP: &confighttp.ServerConfig{
-						Endpoint: "0.0.0.0:14268",
+						Endpoint: "localhost:14268",
 					},
 					ThriftCompact: &ProtocolUDP{
-						Endpoint:        "0.0.0.0:6831",
+						Endpoint:        "localhost:6831",
 						ServerConfigUDP: defaultServerConfigUDP(),
 					},
 					ThriftBinary: &ProtocolUDP{
-						Endpoint:        "0.0.0.0:6832",
+						Endpoint:        "localhost:6832",
 						ServerConfigUDP: defaultServerConfigUDP(),
 					},
 				},
@@ -98,7 +98,7 @@ func TestLoadConfig(t *testing.T) {
 						},
 					},
 					ThriftCompact: &ProtocolUDP{
-						Endpoint:        "0.0.0.0:6831",
+						Endpoint:        "localhost:6831",
 						ServerConfigUDP: defaultServerConfigUDP(),
 					},
 				},

receiver/jaegerreceiver/factory_test.go

@@ -143,7 +143,7 @@ func TestCreateInvalidHTTPEndpoint(t *testing.T) {
 	r, err := factory.CreateTracesReceiver(context.Background(), set, cfg, nil)
 
 	assert.NoError(t, err, "unexpected error creating receiver")
-	assert.Equal(t, "0.0.0.0:14268", r.(*jReceiver).config.HTTPServerConfig.Endpoint, "http port should be default")
+	assert.Equal(t, "localhost:14268", r.(*jReceiver).config.HTTPServerConfig.Endpoint, "http port should be default")
 }
 
 func TestCreateInvalidThriftBinaryEndpoint(t *testing.T) {

receiver/k8sclusterreceiver/testdata/e2e/collector/configmap.yaml

@@ -11,7 +11,8 @@ data:
         tls:
           insecure: true
     extensions:
-      health_check: {}
+      health_check:
+        endpoint: 0.0.0.0:13133
     processors:
     receivers:
       k8s_cluster:

receiver/k8sobjectsreceiver/e2e_test.go

@@ -49,6 +49,7 @@ func TestE2E(t *testing.T) {
 	f := otlpreceiver.NewFactory()
 	cfg := f.CreateDefaultConfig().(*otlpreceiver.Config)
 	cfg.HTTP = nil
+	cfg.GRPC.NetAddr.Endpoint = "0.0.0.0:4317"
 	logsConsumer := new(consumertest.LogsSink)
 	rcvr, err := f.CreateLogsReceiver(context.Background(), receivertest.NewNopSettings(), cfg, logsConsumer)
 	require.NoError(t, rcvr.Start(context.Background(), componenttest.NewNopHost()))

receiver/k8sobjectsreceiver/testdata/e2e/collector/configmap.yaml

@@ -11,7 +11,8 @@ data:
         tls:
           insecure: true
     extensions:
-      health_check: {}
+      health_check:
+        endpoint: 0.0.0.0:13133
     processors:
       transform/k8sobjectsNS:
         error_mode: ignore

receiver/kubeletstatsreceiver/testdata/e2e/collector/configmap.yaml

@@ -11,7 +11,8 @@ data:
         tls:
           insecure: true
     extensions:
-      health_check: {}
+      health_check:
+        endpoint: 0.0.0.0:13133
     processors:
     receivers:
       kubeletstats:

receiver/lokireceiver/config_test.go

@@ -34,12 +34,12 @@ func TestLoadConfig(t *testing.T) {
 				Protocols: Protocols{
 					GRPC: &configgrpc.ServerConfig{
 						NetAddr: confignet.AddrConfig{
-							Endpoint:  "0.0.0.0:3600",
+							Endpoint:  "localhost:3600",
 							Transport: confignet.TransportTypeTCP,
 						},
 					},
 					HTTP: &confighttp.ServerConfig{
-						Endpoint: "0.0.0.0:3500",
+						Endpoint: "localhost:3500",
 					},
 				},
 			},

receiver/opencensusreceiver/config_test.go

@@ -46,7 +46,7 @@ func TestLoadConfig(t *testing.T) {
 			expected: &Config{
 				ServerConfig: configgrpc.ServerConfig{
 					NetAddr: confignet.AddrConfig{
-						Endpoint:  "0.0.0.0:55678",
+						Endpoint:  "localhost:55678",
 						Transport: confignet.TransportTypeTCP,
 					},
 					ReadBufferSize: 512 * 1024,
@@ -71,7 +71,7 @@ func TestLoadConfig(t *testing.T) {
 			expected: &Config{
 				ServerConfig: configgrpc.ServerConfig{
 					NetAddr: confignet.AddrConfig{
-						Endpoint:  "0.0.0.0:55678",
+						Endpoint:  "localhost:55678",
 						Transport: confignet.TransportTypeTCP,
 					},
 					MaxRecvMsgSizeMiB:    32,
@@ -91,7 +91,7 @@ func TestLoadConfig(t *testing.T) {
 			expected: &Config{
 				ServerConfig: configgrpc.ServerConfig{
 					NetAddr: confignet.AddrConfig{
-						Endpoint:  "0.0.0.0:55678",
+						Endpoint:  "localhost:55678",
 						Transport: confignet.TransportTypeTCP,
 					},
 					ReadBufferSize: 512 * 1024,
@@ -109,7 +109,7 @@ func TestLoadConfig(t *testing.T) {
 			expected: &Config{
 				ServerConfig: configgrpc.ServerConfig{
 					NetAddr: confignet.AddrConfig{
-						Endpoint:  "0.0.0.0:55678",
+						Endpoint:  "localhost:55678",
 						Transport: confignet.TransportTypeTCP,
 					},
 					ReadBufferSize: 512 * 1024,

receiver/sapmreceiver/config_test.go

@@ -44,7 +44,7 @@ func TestLoadConfig(t *testing.T) {
 			id: component.NewIDWithName(metadata.Type, "tls"),
 			expected: &Config{
 				ServerConfig: confighttp.ServerConfig{
-					Endpoint: "0.0.0.0:7276",
+					Endpoint: "localhost:7276",
 					TLSSetting: &configtls.ServerConfig{
 						Config: configtls.Config{
 							CertFile: "/test.crt",
@@ -58,7 +58,7 @@ func TestLoadConfig(t *testing.T) {
 			id: component.NewIDWithName(metadata.Type, "passthrough"),
 			expected: &Config{
 				ServerConfig: confighttp.ServerConfig{
-					Endpoint: "0.0.0.0:7276",
+					Endpoint: "localhost:7276",
 				},
 				AccessTokenPassthroughConfig: splunk.AccessTokenPassthroughConfig{
 					AccessTokenPassthrough: true,

receiver/signalfxreceiver/config_test.go

@@ -47,7 +47,7 @@ func TestLoadConfig(t *testing.T) {
 			id: component.NewIDWithName(metadata.Type, "tls"),
 			expected: &Config{
 				ServerConfig: confighttp.ServerConfig{
-					Endpoint: "0.0.0.0:9943",
+					Endpoint: "localhost:9943",
 					TLSSetting: &configtls.ServerConfig{
 						Config: configtls.Config{
 							CertFile: "/test.crt",

receiver/skywalkingreceiver/config_test.go

@@ -29,8 +29,20 @@ func TestLoadConfig(t *testing.T) {
 		expected component.Config
 	}{
 		{
-			id:       component.NewIDWithName(metadata.Type, ""),
-			expected: createDefaultConfig(),
+			id: component.NewIDWithName(metadata.Type, ""),
+			expected: &Config{
+				Protocols: Protocols{
+					HTTP: &confighttp.ServerConfig{
+						Endpoint: "0.0.0.0:12800",
+					},
+					GRPC: &configgrpc.ServerConfig{
+						NetAddr: confignet.AddrConfig{
+							Endpoint:  "0.0.0.0:11800",
+							Transport: confignet.TransportTypeTCP,
+						},
+					},
+				},
+			},
 		},
 		{
 			id: component.NewIDWithName(metadata.Type, "customname"),
@@ -48,7 +60,7 @@ func TestLoadConfig(t *testing.T) {
 				Protocols: Protocols{
 					GRPC: &configgrpc.ServerConfig{
 						NetAddr: confignet.AddrConfig{
-							Endpoint:  "0.0.0.0:11800",
+							Endpoint:  "localhost:11800",
 							Transport: confignet.TransportTypeTCP,
 						},
 					},

receiver/splunkhecreceiver/config_test.go

@@ -57,7 +57,7 @@ func TestLoadConfig(t *testing.T) {
 			id: component.NewIDWithName(metadata.Type, "tls"),
 			expected: &Config{
 				ServerConfig: confighttp.ServerConfig{
-					Endpoint: "0.0.0.0:8088",
+					Endpoint: "localhost:8088",
 					TLSSetting: &configtls.ServerConfig{
 						Config: configtls.Config{
 							CertFile: "/test.crt",

receiver/zipkinreceiver/factory.go

@@ -19,7 +19,7 @@ import (
 
 const (
 	defaultHTTPPort     = 9411
-	defaultBindEndpoint = "0.0.0.0:9411"
+	defaultBindEndpoint = "localhost:9411"
 )
 
 // NewFactory creates a new Zipkin receiver factory