[8.14](backport #4908) Added k8s components to otel distribution

changelog/fragments/1718863753-otel-add-elastic-infra-metrics-processor.yaml

@@ -0,0 +1,32 @@
+# Kind can be one of:
+# - breaking-change: a change to previously-documented behavior
+# - deprecation: functionality that is being removed in a later release
+# - bug-fix: fixes a problem in a previous version
+# - enhancement: extends functionality but does not break or fix existing behavior
+# - feature: new functionality
+# - known-issue: problems that we are aware of in a given version
+# - security: impacts on the security of a product or a user’s deployment.
+# - upgrade: important information for someone upgrading from a prior version
+# - other: does not fit into any of the other categories
+kind: feature
+
+# Change summary; a 80ish characters long description of the change.
+summary: Makes the `elasticinframetrics` processor available to users running Elastic Agent in `otel` mode.
+
+# Long description; in case the summary is not enough to describe the change
+# this field accommodate a description without length limits.
+# NOTE: This field will be rendered only for breaking-change and known-issue kinds at the moment.
+#description:
+
+# Affected component; usually one of "elastic-agent", "fleet-server", "filebeat", "metricbeat", "auditbeat", "all", etc.
+component: elastic-agent
+
+# PR URL; optional; the PR number that added the changeset.
+# If not present is automatically filled by the tooling finding the PR where this changelog fragment has been added.
+# NOTE: the tooling supports backports, so it's able to fill the original PR number instead of the backport PR number.
+# Please provide it if you are adding a fragment for a different PR.
+#pr: https://github.com/owner/repo/1234
+
+# Issue URL; optional; the GitHub issue related to this changeset (either closes or is part of).
+# If not present is automatically filled by the tooling with the issue linked to the PR number.
+#issue: https://github.com/owner/repo/1234

internal/pkg/agent/cmd/cmd_test.go

@@ -6,6 +6,9 @@ package cmd
 
 import (
 	"testing"
+
+	"github.com/spf13/cobra"
+	"github.com/stretchr/testify/require"
 )
 
 func TestAgent(t *testing.T) {
@@ -30,3 +33,18 @@ func TestAgent(t *testing.T) {
 	// 	assert.True(t, strings.Contains(string(contents), "Hello I am running"))
 	// })
 }
+
+func TestAddCommandIfNotNil(t *testing.T) {
+	cmd := &cobra.Command{}
+
+	parent := &cobra.Command{}
+	addCommandIfNotNil(parent, cmd)
+	require.Equal(t, 1, len(parent.Commands()))
+
+	parent = &cobra.Command{}
+	addCommandIfNotNil(parent, nil)
+	require.Equal(t, 0, len(parent.Commands()))
+
+	// this should not panic
+	addCommandIfNotNil(nil, cmd)
+}

internal/pkg/agent/cmd/common.go

@@ -72,18 +72,19 @@ func NewCommandWithArgs(args []string, streams *cli.IOStreams) *cobra.Command {
 	run := newRunCommandWithArgs(args, streams)
 	cmd.AddCommand(basecmd.NewDefaultCommandsWithArgs(args, streams)...)
 	cmd.AddCommand(run)
-	cmd.AddCommand(newInstallCommandWithArgs(args, streams))
-	cmd.AddCommand(newUninstallCommandWithArgs(args, streams))
-	cmd.AddCommand(newUpgradeCommandWithArgs(args, streams))
-	cmd.AddCommand(newEnrollCommandWithArgs(args, streams))
-	cmd.AddCommand(newInspectCommandWithArgs(args, streams))
-	cmd.AddCommand(newWatchCommandWithArgs(args, streams))
-	cmd.AddCommand(newContainerCommand(args, streams))
-	cmd.AddCommand(newStatusCommand(args, streams))
-	cmd.AddCommand(newDiagnosticsCommand(args, streams))
-	cmd.AddCommand(newComponentCommandWithArgs(args, streams))
-	cmd.AddCommand(newLogsCommandWithArgs(args, streams))
-	cmd.AddCommand(newOtelCommandWithArgs(args, streams))
+
+	addCommandIfNotNil(cmd, newInstallCommandWithArgs(args, streams))
+	addCommandIfNotNil(cmd, newUninstallCommandWithArgs(args, streams))
+	addCommandIfNotNil(cmd, newUpgradeCommandWithArgs(args, streams))
+	addCommandIfNotNil(cmd, newEnrollCommandWithArgs(args, streams))
+	addCommandIfNotNil(cmd, newInspectCommandWithArgs(args, streams))
+	addCommandIfNotNil(cmd, newWatchCommandWithArgs(args, streams))
+	addCommandIfNotNil(cmd, newContainerCommand(args, streams))
+	addCommandIfNotNil(cmd, newStatusCommand(args, streams))
+	addCommandIfNotNil(cmd, newDiagnosticsCommand(args, streams))
+	addCommandIfNotNil(cmd, newComponentCommandWithArgs(args, streams))
+	addCommandIfNotNil(cmd, newLogsCommandWithArgs(args, streams))
+	addCommandIfNotNil(cmd, newOtelCommandWithArgs(args, streams))
 
 	// windows special hidden sub-command (only added on Windows)
 	reexec := newReExecWindowsCommand(args, streams)
@@ -95,3 +96,11 @@ func NewCommandWithArgs(args []string, streams *cli.IOStreams) *cobra.Command {
 
 	return cmd
 }
+
+func addCommandIfNotNil(parent, cmd *cobra.Command) {
+	if cmd == nil || parent == nil {
+		return
+	}
+
+	parent.AddCommand(cmd)
+}

internal/pkg/agent/cmd/otel.go

@@ -2,6 +2,8 @@
 // or more contributor license agreements. Licensed under the Elastic License;
 // you may not use this file except in compliance with the Elastic License.
 
+//go:build !windows
+
 package cmd
 
 import (
@@ -18,11 +20,6 @@ import (
 	"github.com/elastic/elastic-agent/internal/pkg/otel"
 )
 
-const (
-	configFlagName = "config"
-	setFlagName    = "set"
-)
-
 func newOtelCommandWithArgs(args []string, streams *cli.IOStreams) *cobra.Command {
 	cmd := &cobra.Command{
 		Use:   "otel",

internal/pkg/agent/cmd/otel_flags.go

@@ -2,6 +2,8 @@
 // or more contributor license agreements. Licensed under the Elastic License;
 // you may not use this file except in compliance with the Elastic License.
 
+//go:build !windows
+
 package cmd
 
 import (
@@ -16,11 +18,16 @@ import (
 	"github.com/elastic/elastic-agent/internal/pkg/agent/application/paths"
 )
 
+const (
+	otelConfigFlagName = "config"
+	otelSetFlagName    = "set"
+)
+
 func setupOtelFlags(flags *pflag.FlagSet) {
-	flags.StringArray(configFlagName, []string{}, "Locations to the config file(s), note that only a"+
+	flags.StringArray(otelConfigFlagName, []string{}, "Locations to the config file(s), note that only a"+
 		" single location can be set per flag entry e.g. `--config=file:/path/to/first --config=file:path/to/second`.")
 
-	flags.StringArray(setFlagName, []string{}, "Set arbitrary component config property. The component has to be defined in the config file and the flag"+
+	flags.StringArray(otelSetFlagName, []string{}, "Set arbitrary component config property. The component has to be defined in the config file and the flag"+
 		" has a higher precedence. Array config properties are overridden and maps are joined. Example --set=processors.batch.timeout=2s")
 
 	goFlags := new(flag.FlagSet)
@@ -30,7 +37,7 @@ func setupOtelFlags(flags *pflag.FlagSet) {
 }
 
 func getConfigFiles(cmd *cobra.Command, useDefault bool) ([]string, error) {
-	configFiles, err := cmd.Flags().GetStringArray(configFlagName)
+	configFiles, err := cmd.Flags().GetStringArray(otelConfigFlagName)
 	if err != nil {
 		return nil, fmt.Errorf("failed to retrieve config flags: %w", err)
 	}
@@ -42,7 +49,7 @@ func getConfigFiles(cmd *cobra.Command, useDefault bool) ([]string, error) {
 		configFiles = append(configFiles, paths.OtelConfigFile())
 	}
 
-	setVals, err := cmd.Flags().GetStringArray(setFlagName)
+	setVals, err := cmd.Flags().GetStringArray(otelSetFlagName)
 	if err != nil {
 		return nil, fmt.Errorf("failed to retrieve set flags: %w", err)
 	}

internal/pkg/agent/cmd/otel_flags_test.go

@@ -2,6 +2,8 @@
 // or more contributor license agreements. Licensed under the Elastic License;
 // you may not use this file except in compliance with the Elastic License.
 
+//go:build !windows
+
 package cmd
 
 import (
@@ -10,15 +12,17 @@ import (
 	"github.com/spf13/pflag"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
+
+	"github.com/elastic/elastic-agent/internal/pkg/agent/application/paths"
 )
 
 func TestOtelFlagsSetup(t *testing.T) {
 	fs := new(pflag.FlagSet)
 	setupOtelFlags(fs)
 
 	expectedFlags := []string{
-		configFlagName,
-		setFlagName,
+		otelConfigFlagName,
+		otelSetFlagName,
 		"feature-gates",
 	}
 
@@ -27,6 +31,43 @@ func TestOtelFlagsSetup(t *testing.T) {
 	}
 }
 
+func TestGetConfigFiles(t *testing.T) {
+	cmd := newOtelCommandWithArgs(nil, nil)
+	configFile := "sample.yaml"
+	require.NoError(t, cmd.Flag(otelConfigFlagName).Value.Set(configFile))
+
+	setVal := "set=val"
+	sets, err := getSets([]string{setVal})
+	require.NoError(t, err)
+	require.NoError(t, cmd.Flag(otelSetFlagName).Value.Set(setVal))
+
+	expectedConfigFiles := append([]string{configFile}, sets...)
+	configFiles, err := getConfigFiles(cmd, false)
+	require.NoError(t, err)
+	require.Equal(t, expectedConfigFiles, configFiles)
+}
+
+func TestGetConfigFilesWithDefault(t *testing.T) {
+	cmd := newOtelCommandWithArgs(nil, nil)
+
+	setVal := "set=val"
+	sets, err := getSets([]string{setVal})
+	require.NoError(t, err)
+	require.NoError(t, cmd.Flag(otelSetFlagName).Value.Set(setVal))
+
+	expectedConfigFiles := append([]string{paths.OtelConfigFile()}, sets...)
+	configFiles, err := getConfigFiles(cmd, true)
+	require.NoError(t, err)
+	require.Equal(t, expectedConfigFiles, configFiles)
+}
+
+func TestGetConfigErrorWhenNoConfig(t *testing.T) {
+	cmd := newOtelCommandWithArgs(nil, nil)
+
+	_, err := getConfigFiles(cmd, false)
+	require.Error(t, err)
+}
+
 func TestGetSets(t *testing.T) {
 	testCases := []struct {
 		name          string

internal/pkg/agent/cmd/otel_windows.go

@@ -0,0 +1,17 @@
+// Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+// or more contributor license agreements. Licensed under the Elastic License;
+// you may not use this file except in compliance with the Elastic License.
+
+//go:build windows
+
+package cmd
+
+import (
+	"github.com/spf13/cobra"
+
+	"github.com/elastic/elastic-agent/internal/pkg/cli"
+)
+
+func newOtelCommandWithArgs(args []string, streams *cli.IOStreams) *cobra.Command {
+	return nil
+}

internal/pkg/agent/cmd/otel_windows_test.go

@@ -0,0 +1,17 @@
+// Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+// or more contributor license agreements. Licensed under the Elastic License;
+// you may not use this file except in compliance with the Elastic License.
+
+//go:build windows
+
+package cmd
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestOtelCommandIsNil(t *testing.T) {
+	require.Nil(t, newOtelCommandWithArgs(nil, nil))
+}

internal/pkg/agent/cmd/validate.go

@@ -2,6 +2,8 @@
 // or more contributor license agreements. Licensed under the Elastic License;
 // you may not use this file except in compliance with the Elastic License.
 
+//go:build !windows
+
 package cmd
 
 import (

internal/pkg/agent/cmd/validate_test.go

@@ -2,6 +2,8 @@
 // or more contributor license agreements. Licensed under the Elastic License;
 // you may not use this file except in compliance with the Elastic License.
 
+//go:build !windows
+
 package cmd
 
 import (

internal/pkg/otel/README.md

@@ -31,8 +31,11 @@ This section provides a summary of components included in the Elastic Distributi
 
 | Component | Version |
 |---|---|
-| filelogreceiver | v0.102.0|
-| otlpreceiver | v0.102.1|
+| filelogreceiver | v0.103.0|
+| hostmetricsreceiver | v0.103.0|
+| k8sclusterreceiver | v0.103.0|
+| kubeletstatsreceiver | v0.103.0|
+| otlpreceiver | v0.103.0|
 
 
 
@@ -41,10 +44,10 @@ This section provides a summary of components included in the Elastic Distributi
 
 | Component | Version |
 |---|---|
-| elasticsearchexporter | v0.102.0|
-| fileexporter | v0.102.0|
-| debugexporter | v0.102.1|
-| otlpexporter | v0.102.1|
+| elasticsearchexporter | v0.103.0|
+| fileexporter | v0.103.0|
+| debugexporter | v0.103.0|
+| otlpexporter | v0.103.0|
 
 
 
@@ -53,13 +56,14 @@ This section provides a summary of components included in the Elastic Distributi
 
 | Component | Version |
 |---|---|
-| attributesprocessor | v0.102.0|
-| filterprocessor | v0.102.0|
-| k8sattributesprocessor | v0.102.0|
-| resourcedetectionprocessor | v0.102.0|
-| resourceprocessor | v0.102.0|
-| transformprocessor | v0.102.0|
-| batchprocessor | v0.102.1|
+| elasticinframetricsprocessor | v0.2.0|
+| attributesprocessor | v0.103.0|
+| filterprocessor | v0.103.0|
+| k8sattributesprocessor | v0.103.0|
+| resourcedetectionprocessor | v0.103.0|
+| resourceprocessor | v0.103.0|
+| transformprocessor | v0.103.0|
+| batchprocessor | v0.103.0|
 
 
 
@@ -68,5 +72,6 @@ This section provides a summary of components included in the Elastic Distributi
 
 | Component | Version |
 |---|---|
-| memorylimiterextension | v0.102.1|
+| storage/filestorage | v0.103.0|
+| memorylimiterextension | v0.103.0|