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grafana · Jan 3, 2025 · 3913159 · 3913159
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diff --git a/.github/workflows/helm-test.yml b/.github/workflows/helm-test.yml
@@ -71,7 +71,7 @@ jobs:
         run: ct lint --config ./operations/helm/ct.yaml
 
       - name: Create kind cluster
-        uses: helm/kind-action@v1.10.0
+        uses: helm/kind-action@v1.11.0
         if: steps.list-changed.outputs.changed == 'true'
 
       - name: Add dependency chart repos

diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -50,12 +50,14 @@ Main (unreleased)
   - Change processlist query to support ONLY_FULL_GROUP_BY sql_mode
   - Add perf_schema quantile columns to collector
 
+- Live Debugging button should appear in UI only for supported components (@ravishankar15)
 - Add three new stdlib functions to_base64, from_URLbase64 and to_URLbase64 (@ravishankar15)
 - Add `ignore_older_than` option for local.file_match (@ravishankar15)
+- Add livedebugging support for `discover.relabel` (@ravishankar15)
 
-- Use a forked `github.com/goccy/go-json` module which reduces the memory consumption of an Alloy instance by 20MB.
+- Upgrade `github.com/goccy/go-json` to v0.10.4, which reduces the memory consumption of an Alloy instance by 20MB.
   If Alloy is running certain otelcol components, this reduction will not apply. (@ptodev)
-  
+
 - Update `prometheus.write.queue` library for performance increases in cpu. (@mattdurham)
 
 ### Bugfixes

diff --git a/docs/sources/reference/components/otelcol/otelcol.auth.basic.md b/docs/sources/reference/components/otelcol/otelcol.auth.basic.md
@@ -11,7 +11,7 @@ title: otelcol.auth.basic
 `otelcol.auth.basic` exposes a `handler` that can be used by other `otelcol`
 components to authenticate requests using basic authentication.
 
-This extension supports both server and client authentication.
+This `component` supports both server and client authentication.
 
 > **NOTE**: `otelcol.auth.basic` is a wrapper over the upstream OpenTelemetry
 > Collector `basicauth` extension. Bug reports or feature requests will be

diff --git a/docs/sources/reference/components/otelcol/otelcol.auth.bearer.md b/docs/sources/reference/components/otelcol/otelcol.auth.bearer.md
@@ -11,7 +11,7 @@ title: otelcol.auth.bearer
 `otelcol.auth.bearer` exposes a `handler` that can be used by other `otelcol`
 components to authenticate requests using bearer token authentication.
 
-This extension supports both server and client authentication.
+This `component` supports both server and client authentication.
 
 {{< admonition type="note" >}}
 `otelcol.auth.bearer` is a wrapper over the upstream OpenTelemetry Collector `bearertokenauth` extension.

diff --git a/docs/sources/reference/components/otelcol/otelcol.auth.headers.md b/docs/sources/reference/components/otelcol/otelcol.auth.headers.md
@@ -11,7 +11,7 @@ title: otelcol.auth.headers
 `otelcol.auth.headers` exposes a `handler` that can be used by other `otelcol`
 components to authenticate requests using custom headers.
 
-This extension only supports client authentication. 
+This `component` only supports client authentication. 
 
 {{< admonition type="note" >}}
 `otelcol.auth.headers` is a wrapper over the upstream OpenTelemetry Collector `headerssetter` extension.

diff --git a/docs/sources/reference/components/otelcol/otelcol.auth.oauth2.md b/docs/sources/reference/components/otelcol/otelcol.auth.oauth2.md
@@ -10,7 +10,7 @@ title: otelcol.auth.oauth2
 
 `otelcol.auth.oauth2` exposes a `handler` that can be used by other `otelcol` components to authenticate requests using OAuth 2.0.
 
-This extension only supports client authentication. 
+This `component` only supports client authentication. 
 
 The authorization tokens can be used by HTTP and gRPC based OpenTelemetry exporters.
 This component can fetch and refresh expired tokens automatically.

diff --git a/docs/sources/reference/components/otelcol/otelcol.auth.sigv4.md b/docs/sources/reference/components/otelcol/otelcol.auth.sigv4.md
@@ -12,7 +12,7 @@ title: otelcol.auth.sigv4
 components to authenticate requests to AWS services using the AWS Signature Version 4 (SigV4) protocol.
 For more information about SigV4 see the AWS documentation about [Signing AWS API requests][].
 
-This extension only supports client authentication. 
+This `component` only supports client authentication. 
 
 [Signing AWS API requests]: https://docs.aws.amazon.com/general/latest/gr/signing-aws-api-requests.html
 

diff --git a/...ources/reference/components/otelcol/otelcol.extension.jaeger_remote_sampling.md b/...ources/reference/components/otelcol/otelcol.extension.jaeger_remote_sampling.md
@@ -296,9 +296,14 @@ otelcol.extension.jaeger_remote_sampling "example" {
 }
 ```
 
-## Enabling Authentication
-
-You can create a `jaeger_remote_sampling` extensions that requires authentication for requests. This is useful for limiting access to the sampling document. Note that not all OpenTelemetry Collector (otelcol) authentication plugins support receiver authentication. Please refer to the documentation for each `otelcol.auth.*` plugin to determine its compatibility.
+## Enable authentication
+
+You can use `jaeger_remote_sampling` to authenticate requests.
+This allows you to limit access to the sampling document.
+ {{< admonition type="note" >}}
+Not all OpenTelemetry Collector authentication plugins support receiver authentication.
+Refer to the [documentation](https://grafana.com/docs/alloy/<ALLOY_VERSION>/reference/components/otelcol/) for each `otelcol.auth.*` component to determine its compatibility.
+ {{< /admonition >}}
 
 ```alloy
 otelcol.extension.jaeger_remote_sampling "default" {

diff --git a/docs/sources/reference/components/otelcol/otelcol.receiver.datadog.md b/docs/sources/reference/components/otelcol/otelcol.receiver.datadog.md
@@ -136,9 +136,14 @@ otelcol.exporter.otlp "default" {
 }
 ```
 
-## Enabling Authentication
+## Enable authentication
 
-You can create a `datadog` receiver that requires authentication for requests. This is useful for limiting who can push data to the server. Note that not all OpenTelemetry Collector (otelcol) authentication plugins support receiver authentication. Please refer to the documentation for each `otelcol.auth.*` plugin to determine its compatibility.
+You can create a `otelcol.receiver.datadog` component that requires authentication for requests. This is useful for limiting who can push data to the server. 
+
+{{< admonition type="note" >}}
+Not all OpenTelemetry Collector authentication plugins support receiver authentication.
+Refer to the [documentation](https://grafana.com/docs/alloy/<ALLOY_VERSION>/reference/components/otelcol/) for each `otelcol.auth.*` component to determine its compatibility.
+{{< /admonition >}} 
 
 ```alloy
 otelcol.receiver.datadog "default" {

diff --git a/docs/sources/reference/components/otelcol/otelcol.receiver.influxdb.md b/docs/sources/reference/components/otelcol/otelcol.receiver.influxdb.md
@@ -151,9 +151,14 @@ prometheus.remote_write "mimir" {
 }
 ```
 
-## Enabling Authentication
+## Enable authentication
 
-You can create a `influxdb` receiver that requires authentication for requests. This is useful for limiting who can push data to the server. Note that not all OpenTelemetry Collector (otelcol) authentication plugins support receiver authentication. Please refer to the documentation for each `otelcol.auth.*` plugin to determine its compatibility.
+You can create a `otelcol.receiver.influxdb` component that requires authentication for requests. This is useful for limiting who can push data to the server. 
+
+{{< admonition type="note" >}}
+Not all OpenTelemetry Collector authentication plugins support receiver authentication.
+Refer to the [documentation](https://grafana.com/docs/alloy/<ALLOY_VERSION>/reference/components/otelcol/) for each `otelcol.auth.*` component to determine its compatibility.
+{{< /admonition >}}
 
 ```alloy
 otelcol.receiver.influxdb "influxdb_metrics" {

diff --git a/docs/sources/reference/components/otelcol/otelcol.receiver.jaeger.md b/docs/sources/reference/components/otelcol/otelcol.receiver.jaeger.md
@@ -264,9 +264,18 @@ otelcol.exporter.otlp "default" {
 
 `otelcol.receiver.jaeger` supports [Gzip](https://en.wikipedia.org/wiki/Gzip) for compression.
 
-## Enabling Authentication
+## Enable authentication
 
-You can create a `jaeger` receiver that requires authentication for requests. This is useful for limiting who can push data to the server. Note that not all OpenTelemetry Collector (otelcol) authentication plugins support receiver authentication. Please refer to the documentation for each `otelcol.auth.*` plugin to determine its compatibility. This functionality is currently limited to the GRPC/HTTP blocks.
+You can create a `otelcol.receiver.jaeger` component that requires authentication for requests. This is useful for limiting who can push data to the server.
+
+{{< admonition type="note" >}}
+This functionality is currently limited to the GRPC/HTTP blocks.
+{{< /admonition >}} 
+
+{{< admonition type="note" >}}
+Not all OpenTelemetry Collector authentication plugins support receiver authentication.
+Refer to the [documentation](https://grafana.com/docs/alloy/<ALLOY_VERSION>/reference/components/otelcol/) for each `otelcol.auth.*` component to determine its compatibility.
+{{< /admonition >}} 
 
 ```alloy
 otelcol.receiver.jaeger "default" {

diff --git a/docs/sources/reference/components/otelcol/otelcol.receiver.opencensus.md b/docs/sources/reference/components/otelcol/otelcol.receiver.opencensus.md
@@ -210,9 +210,14 @@ otelcol.exporter.otlp "default" {
 }
 ```
 
-## Enabling Authentication
+## Enable authentication
 
-You can create a `opencensus` receiver that requires authentication for requests. This is useful for limiting who can push data to the server. Note that not all OpenTelemetry Collector (otelcol) authentication plugins support receiver authentication. Please refer to the documentation for each `otelcol.auth.*` plugin to determine its compatibility.
+You can create a `otelcol.receiver.opencensus` component that requires authentication for requests. This is useful for limiting who can push data to the server. 
+
+{{< admonition type="note" >}}
+Not all OpenTelemetry Collector authentication plugins support receiver authentication.
+Refer to the [documentation](https://grafana.com/docs/alloy/<ALLOY_VERSION>/reference/components/otelcol/) for each `otelcol.auth.*` component to determine its compatibility.
+{{< /admonition >}} 
 
 ```alloy
 otelcol.receiver.opencensus "default" {

diff --git a/docs/sources/reference/components/otelcol/otelcol.receiver.otlp.md b/docs/sources/reference/components/otelcol/otelcol.receiver.otlp.md
@@ -243,9 +243,14 @@ otelcol.exporter.otlp "default" {
 
 `otelcol.receiver.otlp` supports [gzip](https://en.wikipedia.org/wiki/Gzip) for compression.
 
-## Enabling Authentication
+## Enable authentication
 
-You can create a `otlp` receiver that requires authentication for requests. This is useful for limiting who can push data to the server. Note that not all OpenTelemetry Collector (otelcol) authentication plugins support receiver authentication. Please refer to the documentation for each `otelcol.auth.*` plugin to determine its compatibility.
+You can create a `otelcol.reciever.otlp` component that requires authentication for requests. This is useful for limiting who can push data to the server. 
+
+{{< admonition type="note" >}}
+Not all OpenTelemetry Collector authentication plugins support receiver authentication.
+Refer to the [documentation](https://grafana.com/docs/alloy/<ALLOY_VERSION>/reference/components/otelcol/) for each `otelcol.auth.*` component to determine its compatibility.
+{{< /admonition >}} 
 
 ```alloy
 otelcol.receiver.otlp "default" {

diff --git a/docs/sources/reference/components/otelcol/otelcol.receiver.zipkin.md b/docs/sources/reference/components/otelcol/otelcol.receiver.zipkin.md
@@ -143,9 +143,14 @@ otelcol.exporter.otlp "default" {
 }
 ```
 
-## Enabling Authentication
+## Enable authentication
 
-You can create a `zipkin` receiver that requires authentication for requests. This is useful for limiting who can push data to the server. Note that not all OpenTelemetry Collector (otelcol) authentication plugins support receiver authentication. Please refer to the documentation for each `otelcol.auth.*` plugin to determine its compatibility.
+You can create a `otelcol.receiver.zipkin` component that requires authentication for requests. This is useful for limiting who can push data to the server. 
+
+{{< admonition type="note" >}}
+Not all OpenTelemetry Collector authentication plugins support receiver authentication.
+Refer to the [documentation](https://grafana.com/docs/alloy/<ALLOY_VERSION>/reference/components/otelcol/) for each `otelcol.auth.*` component to determine its compatibility.
+{{< /admonition >}} 
 
 ```alloy
 otelcol.receiver.zipkin "default" {

diff --git a/docs/sources/reference/components/prometheus/prometheus.remote_write.md b/docs/sources/reference/components/prometheus/prometheus.remote_write.md
@@ -427,7 +427,7 @@ To troubleshoot, take the following steps in order:
    You can use [Promtool][promtool] to inspect it and find out which metric series were sent by this {{< param "PRODUCT_NAME" >}} instance since the last WAL truncation event. 
    For example:
    ```
-   ./promtool tsdb dump --match='{__name__=\"otelcol_connector_spanmetrics_duration_seconds_bucket\", http_method=\"GET\", job=\"ExampleJobName\"' /path/to/wal/ 
+   ./promtool tsdb dump --match='{__name__="otelcol_connector_spanmetrics_duration_seconds_bucket", http_method="GET", job="ExampleJobName"}' /path/to/wal/
    ```
 
 [clustering]: ../../configure/clustering

diff --git a/docs/sources/troubleshoot/debug.md b/docs/sources/troubleshoot/debug.md
@@ -111,6 +111,7 @@ Supported components:
 * `otelcol.receiver.*`
 * `prometheus.relabel`
 {{< /admonition >}}
+* `discovery.relabel`
 
 ## Debug using the UI
 

diff --git a/go.mod b/go.mod
@@ -518,7 +518,7 @@ require (
 	github.com/go-viper/mapstructure/v2 v2.2.1 // indirect
 	github.com/go-zookeeper/zk v1.0.3 // indirect
 	github.com/gobwas/glob v0.2.3 // indirect
-	github.com/goccy/go-json v0.10.3 // indirect
+	github.com/goccy/go-json v0.10.4 // indirect
 	github.com/godbus/dbus v0.0.0-20190726142602-4481cbc300e2 // indirect
 	github.com/godbus/dbus/v5 v5.1.0 // indirect
 	github.com/gogo/googleapis v1.4.1 // indirect
@@ -945,6 +945,3 @@ exclude (
 )
 
 replace github.com/prometheus/procfs => github.com/prometheus/procfs v0.12.0
-
-// TODO(ptodev): Remove when this PR has been merged: https://github.com/goccy/go-json/pull/490
-replace github.com/goccy/go-json => github.com/grafana/go-json v0.0.0-20241106155216-71a03f133f5c
diff --git a/go.sum b/go.sum
@@ -1619,6 +1619,9 @@ github.com/goburrow/modbus v0.1.0/go.mod h1:Kx552D5rLIS8E7TyUwQ/UdHEqvX5T8tyiGBT
 github.com/goburrow/serial v0.1.0/go.mod h1:sAiqG0nRVswsm1C97xsttiYCzSLBmUZ/VSlVLZJ8haA=
 github.com/gobwas/glob v0.2.3 h1:A4xDbljILXROh+kObIiy5kIaPYD8e96x1tgBhUI5J+Y=
 github.com/gobwas/glob v0.2.3/go.mod h1:d3Ez4x06l9bZtSvzIay5+Yzi0fmZzPgnTbPcKjJAkT8=
+github.com/goccy/go-json v0.9.11/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I=
+github.com/goccy/go-json v0.10.4 h1:JSwxQzIqKfmFX1swYPpUThQZp/Ka4wzJdK0LWVytLPM=
+github.com/goccy/go-json v0.10.4/go.mod h1:oq7eo15ShAhp70Anwd5lgX2pLfOS3QCiwU/PULtXL6M=
 github.com/godbus/dbus v0.0.0-20190726142602-4481cbc300e2 h1:ZpnhV/YsD2/4cESfV5+Hoeu/iUR3ruzNvZ+yQfO03a0=
 github.com/godbus/dbus v0.0.0-20190726142602-4481cbc300e2/go.mod h1:bBOAhwG1umN6/6ZUMtDFBMQR8jRg9O75tm9K00oMsK4=
 github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
@@ -1853,8 +1856,6 @@ github.com/grafana/dskit v0.0.0-20240104111617-ea101a3b86eb h1:AWE6+kvtE18HP+lRW
 github.com/grafana/dskit v0.0.0-20240104111617-ea101a3b86eb/go.mod h1:kkWM4WUV230bNG3urVRWPBnSJHs64y/0RmWjftnnn0c=
 github.com/grafana/go-gelf/v2 v2.0.1 h1:BOChP0h/jLeD+7F9mL7tq10xVkDG15he3T1zHuQaWak=
 github.com/grafana/go-gelf/v2 v2.0.1/go.mod h1:lexHie0xzYGwCgiRGcvZ723bSNyNI8ZRD4s0CLobh90=
-github.com/grafana/go-json v0.0.0-20241106155216-71a03f133f5c h1:yKBKEC347YZpgii1KazRCfxHsTaxMqWZzoivM1OTT50=
-github.com/grafana/go-json v0.0.0-20241106155216-71a03f133f5c/go.mod h1:oq7eo15ShAhp70Anwd5lgX2pLfOS3QCiwU/PULtXL6M=
 github.com/grafana/go-offsets-tracker v0.1.7 h1:2zBQ7iiGzvyXY7LA8kaaSiEqH/Yx82UcfRabbY5aOG4=
 github.com/grafana/go-offsets-tracker v0.1.7/go.mod h1:qcQdu7zlUKIFNUdBJlLyNHuJGW0SKWKjkrN6jtt+jds=
 github.com/grafana/gocql v0.0.0-20200605141915-ba5dc39ece85/go.mod h1:crI9WX6p0IhrqB+DqIUHulRW853PaNFf7o4UprV//3I=

diff --git a/internal/cmd/integration-tests/docker-compose.yaml b/internal/cmd/integration-tests/docker-compose.yaml
@@ -12,7 +12,7 @@ services:
       - "9009:9009"
 
   tempo:
-    image: grafana/tempo:latest
+    image: grafana/tempo:2.6.1
     command: [ "-config.file=/etc/tempo.yaml" ]
     volumes:
       - ./configs/tempo/tempo.yaml:/etc/tempo.yaml

diff --git a/internal/component/component_provider.go b/internal/component/component_provider.go
@@ -123,9 +123,10 @@ type Info struct {
 	ComponentName string // Name of the component.
 	Health        Health // Current component health.
 
-	Arguments Arguments   // Current arguments value of the component.
-	Exports   Exports     // Current exports value of the component.
-	DebugInfo interface{} // Current debug info of the component.
+	Arguments            Arguments   // Current arguments value of the component.
+	Exports              Exports     // Current exports value of the component.
+	DebugInfo            interface{} // Current debug info of the component.
+	LiveDebuggingEnabled bool
 }
 
 // MarshalJSON returns a JSON representation of cd. The format of the
@@ -139,19 +140,20 @@ func (info *Info) MarshalJSON() ([]byte, error) {
 		}
 
 		componentDetailJSON struct {
-			Name             string               `json:"name"`
-			Type             string               `json:"type,omitempty"`
-			LocalID          string               `json:"localID"`
-			ModuleID         string               `json:"moduleID"`
-			Label            string               `json:"label,omitempty"`
-			References       []string             `json:"referencesTo"`
-			ReferencedBy     []string             `json:"referencedBy"`
-			Health           *componentHealthJSON `json:"health"`
-			Original         string               `json:"original"`
-			Arguments        json.RawMessage      `json:"arguments,omitempty"`
-			Exports          json.RawMessage      `json:"exports,omitempty"`
-			DebugInfo        json.RawMessage      `json:"debugInfo,omitempty"`
-			CreatedModuleIDs []string             `json:"createdModuleIDs,omitempty"`
+			Name                 string               `json:"name"`
+			Type                 string               `json:"type,omitempty"`
+			LocalID              string               `json:"localID"`
+			ModuleID             string               `json:"moduleID"`
+			Label                string               `json:"label,omitempty"`
+			References           []string             `json:"referencesTo"`
+			ReferencedBy         []string             `json:"referencedBy"`
+			Health               *componentHealthJSON `json:"health"`
+			Original             string               `json:"original"`
+			Arguments            json.RawMessage      `json:"arguments,omitempty"`
+			Exports              json.RawMessage      `json:"exports,omitempty"`
+			DebugInfo            json.RawMessage      `json:"debugInfo,omitempty"`
+			CreatedModuleIDs     []string             `json:"createdModuleIDs,omitempty"`
+			LiveDebuggingEnabled bool                 `json:"liveDebuggingEnabled"`
 		}
 	)
 
@@ -196,10 +198,11 @@ func (info *Info) MarshalJSON() ([]byte, error) {
 			Message:     info.Health.Message,
 			UpdatedTime: info.Health.UpdateTime,
 		},
-		Arguments:        arguments,
-		Exports:          exports,
-		DebugInfo:        debugInfo,
-		CreatedModuleIDs: info.ModuleIDs,
+		Arguments:            arguments,
+		Exports:              exports,
+		DebugInfo:            debugInfo,
+		CreatedModuleIDs:     info.ModuleIDs,
+		LiveDebuggingEnabled: info.LiveDebuggingEnabled,
 	})
 }
 

diff --git a/internal/component/discovery/relabel/relabel.go b/internal/component/discovery/relabel/relabel.go
@@ -2,12 +2,14 @@ package relabel
 
 import (
 	"context"
+	"fmt"
 	"sync"
 
 	"github.com/grafana/alloy/internal/component"
 	alloy_relabel "github.com/grafana/alloy/internal/component/common/relabel"
 	"github.com/grafana/alloy/internal/component/discovery"
 	"github.com/grafana/alloy/internal/featuregate"
+	"github.com/grafana/alloy/internal/service/livedebugging"
 	"github.com/prometheus/prometheus/model/labels"
 	"github.com/prometheus/prometheus/model/relabel"
 )
@@ -46,13 +48,23 @@ type Component struct {
 
 	mut sync.RWMutex
 	rcs []*relabel.Config
+
+	debugDataPublisher livedebugging.DebugDataPublisher
 }
 
 var _ component.Component = (*Component)(nil)
+var _ component.LiveDebugging = (*Component)(nil)
 
 // New creates a new discovery.relabel component.
 func New(o component.Options, args Arguments) (*Component, error) {
-	c := &Component{opts: o}
+	debugDataPublisher, err := o.GetServiceData(livedebugging.ServiceName)
+	if err != nil {
+		return nil, err
+	}
+	c := &Component{
+		opts:               o,
+		debugDataPublisher: debugDataPublisher.(livedebugging.DebugDataPublisher),
+	}
 
 	// Call to Update() to set the output once at the start
 	if err := c.Update(args); err != nil {
@@ -81,9 +93,13 @@ func (c *Component) Update(args component.Arguments) error {
 
 	for _, t := range newArgs.Targets {
 		lset := componentMapToPromLabels(t)
-		lset, keep := relabel.Process(lset, relabelConfigs...)
+		relabelled, keep := relabel.Process(lset, relabelConfigs...)
 		if keep {
-			targets = append(targets, promLabelsToComponent(lset))
+			targets = append(targets, promLabelsToComponent(relabelled))
+		}
+		componentID := livedebugging.ComponentID(c.opts.ID)
+		if c.debugDataPublisher.IsActive(componentID) {
+			c.debugDataPublisher.Publish(componentID, fmt.Sprintf("%s => %s", lset.String(), relabelled.String()))
 		}
 	}
 
@@ -95,6 +111,8 @@ func (c *Component) Update(args component.Arguments) error {
 	return nil
 }
 
+func (c *Component) LiveDebugging(_ int) {}
+
 func componentMapToPromLabels(ls discovery.Target) labels.Labels {
 	res := make([]labels.Label, 0, len(ls))
 	for k, v := range ls {

diff --git a/internal/component/otelcol/auth/auth.go b/internal/component/otelcol/auth/auth.go
@@ -304,7 +304,7 @@ func (a *Auth) Update(args component.Arguments) error {
 	)
 
 	// Schedule the components to run once our component is running.
-	a.sched.Schedule(host, components...)
+	a.sched.Schedule(a.ctx, func() {}, host, components...)
 	return nil
 }