[9.3](backport #48353) Remove use of github.com/elastic/elastic-agent-client from OSS Beats

.golangci.yml

@@ -37,6 +37,8 @@ linters:
           deny:
             - pkg: github.com/elastic/beats/v7/x-pack
               desc: Apache 2.0 licensed code cannot depend on Elastic licensed code (x-pack/).
+            - pkg: github.com/elastic/elastic-agent-client
+              desc: Apache 2.0 licensed code cannot depend on Elastic licensed code (elastic-agent-client).
         main:
           list-mode: lax
           deny:

changelog/fragments/1767906742-remove-use-of-github.com-elastic-elastic-agent-client-from-oss-beats.yaml

@@ -0,0 +1,45 @@
+# REQUIRED
+# 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: bug-fix
+
+# REQUIRED for all kinds
+# Change summary; a 80ish characters long description of the change.
+summary: Remove use of github.com/elastic/elastic-agent-client from OSS Beats.
+
+# REQUIRED for breaking-change, deprecation, known-issue
+# Long description; in case the summary is not enough to describe the change
+# this field accommodate a description without length limits.
+# description:
+
+# REQUIRED for breaking-change, deprecation, known-issue
+# impact:
+
+# REQUIRED for breaking-change, deprecation, known-issue
+# action:
+
+# REQUIRED for all kinds
+# Affected component; usually one of "elastic-agent", "fleet-server", "filebeat", "metricbeat", "auditbeat", "all", etc.
+component: "all"
+
+# AUTOMATED
+# OPTIONAL to manually add other PR URLs
+# PR URL: A link the PR 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/elastic/beats/pull/48353
+
+# AUTOMATED
+# OPTIONAL to manually add other issue URLs
+# 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

libbeat/beat/beat.go

@@ -23,7 +23,6 @@ import (
 	"github.com/elastic/beats/v7/libbeat/instrumentation"
 	"github.com/elastic/beats/v7/libbeat/management"
 	"github.com/elastic/beats/v7/libbeat/version"
-	"github.com/elastic/elastic-agent-client/v7/pkg/proto"
 	"github.com/elastic/elastic-agent-libs/config"
 	"github.com/elastic/elastic-agent-libs/keystore"
 	"github.com/elastic/elastic-agent-libs/paths"
@@ -102,9 +101,9 @@ func (beat *Beat) userAgentMode() useragent.AgentManagementMode {
 
 	info := beat.Manager.AgentInfo()
 	switch info.ManagedMode {
-	case proto.AgentManagedMode_MANAGED:
+	case management.AgentManagedMode_MANAGED:
 		return useragent.AgentManagementModeManaged
-	case proto.AgentManagedMode_STANDALONE:
+	case management.AgentManagedMode_STANDALONE:
 		return useragent.AgentManagementModeUnmanaged
 	}
 	// this is probably not reachable

libbeat/beat/beat_test.go

@@ -24,31 +24,30 @@ import (
 
 	"github.com/stretchr/testify/require"
 
+	"github.com/elastic/beats/v7/libbeat/management"
 	"github.com/elastic/beats/v7/libbeat/management/status"
-	"github.com/elastic/elastic-agent-client/v7/pkg/client"
-	"github.com/elastic/elastic-agent-client/v7/pkg/proto"
 	"github.com/elastic/elastic-agent-libs/config"
 )
 
 type testManager struct {
 	isUnpriv  bool
-	mgmtMode  proto.AgentManagedMode
+	mgmtMode  management.AgentManagedMode
 	isEnabled bool
 }
 
 func (tm testManager) UpdateStatus(_ status.Status, _ string) {}
 func (tm testManager) Enabled() bool                          { return tm.isEnabled }
 func (tm testManager) Start() error                           { return nil }
 func (tm testManager) Stop()                                  {}
-func (tm testManager) AgentInfo() client.AgentInfo {
-	return client.AgentInfo{Unprivileged: tm.isUnpriv, ManagedMode: tm.mgmtMode}
+func (tm testManager) AgentInfo() management.AgentInfo {
+	return management.AgentInfo{Unprivileged: tm.isUnpriv, ManagedMode: tm.mgmtMode}
 }
-func (tm testManager) SetStopCallback(_ func())            {}
-func (tm testManager) CheckRawConfig(_ *config.C) error    { return nil }
-func (tm testManager) RegisterAction(_ client.Action)      {}
-func (tm testManager) UnregisterAction(_ client.Action)    {}
-func (tm testManager) SetPayload(_ map[string]interface{}) {}
-func (tm testManager) RegisterDiagnosticHook(_ string, _ string, _ string, _ string, _ client.DiagnosticHook) {
+func (tm testManager) SetStopCallback(_ func())             {}
+func (tm testManager) CheckRawConfig(_ *config.C) error     { return nil }
+func (tm testManager) RegisterAction(_ management.Action)   {}
+func (tm testManager) UnregisterAction(_ management.Action) {}
+func (tm testManager) SetPayload(_ map[string]interface{})  {}
+func (tm testManager) RegisterDiagnosticHook(_ string, _ string, _ string, _ string, _ management.DiagnosticHook) {
 }
 
 func TestUserAgentString(t *testing.T) {
@@ -60,25 +59,25 @@ func TestUserAgentString(t *testing.T) {
 		{
 			name: "managed-unprivileged",
 			beat: &Beat{Info: Info{Beat: "testbeat"},
-				Manager: testManager{isEnabled: true, isUnpriv: true, mgmtMode: proto.AgentManagedMode_MANAGED}},
+				Manager: testManager{isEnabled: true, isUnpriv: true, mgmtMode: management.AgentManagedMode_MANAGED}},
 			expectedComments: []string{"Managed", "Unprivileged"},
 		},
 		{
 			name: "managed-privileged",
 			beat: &Beat{Info: Info{Beat: "testbeat"},
-				Manager: testManager{isEnabled: true, isUnpriv: false, mgmtMode: proto.AgentManagedMode_MANAGED}},
+				Manager: testManager{isEnabled: true, isUnpriv: false, mgmtMode: management.AgentManagedMode_MANAGED}},
 			expectedComments: []string{"Managed"},
 		},
 		{
 			name: "unmanaged-privileged",
 			beat: &Beat{Info: Info{Beat: "testbeat"},
-				Manager: testManager{isEnabled: true, isUnpriv: false, mgmtMode: proto.AgentManagedMode_STANDALONE}},
+				Manager: testManager{isEnabled: true, isUnpriv: false, mgmtMode: management.AgentManagedMode_STANDALONE}},
 			expectedComments: []string{"Unmanaged"},
 		},
 		{
 			name: "unmanaged-unprivileged",
 			beat: &Beat{Info: Info{Beat: "testbeat"},
-				Manager: testManager{isEnabled: true, isUnpriv: true, mgmtMode: proto.AgentManagedMode_STANDALONE}},
+				Manager: testManager{isEnabled: true, isUnpriv: true, mgmtMode: management.AgentManagedMode_STANDALONE}},
 			expectedComments: []string{"Unmanaged", "Unprivileged"},
 		},
 		{

libbeat/cmd/instance/beat_test.go

@@ -34,7 +34,6 @@ import (
 	"github.com/elastic/beats/v7/libbeat/management/status"
 	"github.com/elastic/beats/v7/libbeat/outputs"
 	"github.com/elastic/beats/v7/libbeat/publisher/queue/memqueue"
-	"github.com/elastic/elastic-agent-client/v7/pkg/client"
 	"github.com/elastic/elastic-agent-libs/config"
 	"github.com/elastic/elastic-agent-libs/logp"
 	"github.com/elastic/elastic-agent-libs/logp/logptest"
@@ -499,18 +498,18 @@ type mockManager struct {
 	enabled bool
 }
 
-func (m mockManager) AgentInfo() client.AgentInfo         { return client.AgentInfo{} }
-func (m mockManager) CheckRawConfig(cfg *config.C) error  { return nil }
-func (m mockManager) Enabled() bool                       { return m.enabled }
-func (m mockManager) RegisterAction(action client.Action) {}
-func (m mockManager) RegisterDiagnosticHook(name, description, filename, contentType string, hook client.DiagnosticHook) {
+func (m mockManager) AgentInfo() management.AgentInfo         { return management.AgentInfo{} }
+func (m mockManager) CheckRawConfig(cfg *config.C) error      { return nil }
+func (m mockManager) Enabled() bool                           { return m.enabled }
+func (m mockManager) RegisterAction(action management.Action) {}
+func (m mockManager) RegisterDiagnosticHook(name, description, filename, contentType string, hook management.DiagnosticHook) {
 }
 func (m mockManager) SetPayload(payload map[string]any)             {}
 func (m mockManager) SetStopCallback(f func())                      {}
 func (m mockManager) Start() error                                  { return nil }
 func (m mockManager) Status() status.Status                         { return status.Status(-42) }
 func (m mockManager) Stop()                                         {}
-func (m mockManager) UnregisterAction(action client.Action)         {}
+func (m mockManager) UnregisterAction(action management.Action)     {}
 func (m mockManager) UpdateStatus(status status.Status, msg string) {}
 
 func TestManager(t *testing.T) {

libbeat/features/features.go

@@ -22,7 +22,6 @@ import (
 	"sync"
 	"sync/atomic"
 
-	"github.com/elastic/elastic-agent-client/v7/pkg/proto"
 	conf "github.com/elastic/elastic-agent-libs/config"
 )
 
@@ -43,32 +42,6 @@ type fflags struct {
 	logRunAsFilestream atomic.Bool
 }
 
-// NewConfigFromProto converts the given *proto.Features object to
-// a *config.C object.
-func NewConfigFromProto(f *proto.Features) (*conf.C, error) {
-	if f == nil {
-		return nil, nil
-	}
-
-	var beatCfg struct {
-		Features *proto.Features `config:"features"`
-	}
-
-	beatCfg.Features = f
-
-	c, err := conf.NewConfigFrom(&beatCfg)
-	if err != nil {
-		return nil, fmt.Errorf("unable to parse feature flags message into beat configuration: %w", err)
-	}
-
-	_, err = c.Remove("features.source", -1)
-	if err != nil {
-		return nil, fmt.Errorf("unable to convert feature flags message to beat configuration: %w", err)
-	}
-
-	return c, nil
-}
-
 // UpdateFromConfig updates the feature flags configuration. If c is nil UpdateFromConfig is no-op.
 func UpdateFromConfig(c *conf.C) error {
 	if c == nil {

libbeat/features/features_test.go

@@ -20,67 +20,11 @@ package features
 import (
 	"testing"
 
-	"google.golang.org/protobuf/types/known/structpb"
-
-	"github.com/elastic/elastic-agent-client/v7/pkg/proto"
 	"github.com/elastic/elastic-agent-libs/config"
 
 	"github.com/stretchr/testify/require"
 )
 
-func TestNewConfigFromProto(t *testing.T) {
-	source, err := structpb.NewStruct(map[string]interface{}{
-		"fqdn": map[string]interface{}{
-			"enabled": false,
-		},
-	})
-	require.NoError(t, err)
-
-	tests := map[string]struct {
-		protoFeatures *proto.Features
-		expected      *config.C
-	}{
-		"nil": {
-			protoFeatures: nil,
-			expected:      nil,
-		},
-		"fqdn_enabled": {
-			protoFeatures: &proto.Features{Fqdn: &proto.FQDNFeature{Enabled: true}},
-			expected: config.MustNewConfigFrom(`
-features:
-  fqdn:
-    enabled: true
-`),
-		},
-		"fqdn_disabled": {
-			protoFeatures: &proto.Features{Fqdn: &proto.FQDNFeature{Enabled: false}},
-			expected: config.MustNewConfigFrom(`
-features:
-  fqdn:
-    enabled: false
-`),
-		},
-		"with_source": {
-			protoFeatures: &proto.Features{Fqdn: &proto.FQDNFeature{Enabled: true}, Source: source},
-			expected: config.MustNewConfigFrom(`
-features:
-  fqdn:
-    enabled: true
-`),
-		},
-	}
-
-	for name, test := range tests {
-		t.Run(name, func(t *testing.T) {
-			c, err := NewConfigFromProto(test.protoFeatures)
-			require.NoError(t, err)
-
-			require.Equal(t, test.expected, c)
-		})
-	}
-
-}
-
 func TestFQDN(t *testing.T) {
 	tcs := []struct {
 		name string

libbeat/management/management.go

@@ -22,7 +22,6 @@ import (
 
 	"github.com/elastic/beats/v7/libbeat/common/reload"
 	"github.com/elastic/beats/v7/libbeat/management/status"
-	"github.com/elastic/elastic-agent-client/v7/pkg/client"
 	"github.com/elastic/elastic-agent-libs/config"
 	"github.com/elastic/elastic-agent-libs/logp"
 )
@@ -56,7 +55,7 @@ type Manager interface {
 	Stop()
 
 	// AgentInfo returns the information of the agent to which the manager is connected.
-	AgentInfo() client.AgentInfo
+	AgentInfo() AgentInfo
 
 	// SetStopCallback accepts a function that need to be called when the manager want to shutdown the
 	// beats. This is needed when you want your beats to be gracefully shutdown remotely by the Elastic Agent
@@ -67,16 +66,16 @@ type Manager interface {
 	CheckRawConfig(cfg *config.C) error
 
 	// RegisterAction registers action handler with the client
-	RegisterAction(action client.Action)
+	RegisterAction(action Action)
 
 	// UnregisterAction unregisters action handler with the client
-	UnregisterAction(action client.Action)
+	UnregisterAction(action Action)
 
 	// SetPayload Allows to add additional metadata to future requests made by the manager.
 	SetPayload(map[string]interface{})
 
 	// RegisterDiagnosticHook registers a callback for elastic-agent diagnostics
-	RegisterDiagnosticHook(name string, description string, filename string, contentType string, hook client.DiagnosticHook)
+	RegisterDiagnosticHook(name string, description string, filename string, contentType string, hook DiagnosticHook)
 }
 
 // ManagerFactory is the factory type for creating a config manager
@@ -162,12 +161,12 @@ func (n *FallbackManager) Stop() {
 // the nilManager is still used for shutdown on some cases,
 // but that does not mean the Beat is being managed externally,
 // hence it will always return false.
-func (n *FallbackManager) Enabled() bool                         { return false }
-func (n *FallbackManager) AgentInfo() client.AgentInfo           { return client.AgentInfo{} }
-func (n *FallbackManager) Start() error                          { return nil }
-func (n *FallbackManager) CheckRawConfig(cfg *config.C) error    { return nil }
-func (n *FallbackManager) RegisterAction(action client.Action)   {}
-func (n *FallbackManager) UnregisterAction(action client.Action) {}
-func (n *FallbackManager) SetPayload(map[string]interface{})     {}
-func (n *FallbackManager) RegisterDiagnosticHook(_ string, _ string, _ string, _ string, _ client.DiagnosticHook) {
+func (n *FallbackManager) Enabled() bool                      { return false }
+func (n *FallbackManager) AgentInfo() AgentInfo               { return AgentInfo{} }
+func (n *FallbackManager) Start() error                       { return nil }
+func (n *FallbackManager) CheckRawConfig(cfg *config.C) error { return nil }
+func (n *FallbackManager) RegisterAction(action Action)       {}
+func (n *FallbackManager) UnregisterAction(action Action)     {}
+func (n *FallbackManager) SetPayload(map[string]interface{})  {}
+func (n *FallbackManager) RegisterDiagnosticHook(_ string, _ string, _ string, _ string, _ DiagnosticHook) {
 }