[Elastic Agent] Enable log shipping of endpoint-security by Elastic A…

…gent (#22526)

* Refactor to pass program.Spec around so custom log paths can be defined in a program spec.

* Fix code.

* Fix formatting.

* Add changelog.

* Fixes from code review.

x-pack/elastic-agent/CHANGELOG.next.asciidoc

@@ -49,3 +49,4 @@
 - Update `fleet.kibana.path` from a POLICY_CHANGE {pull}21804[21804]
 - Removed `install-service.ps1` and `uninstall-service.ps1` from Windows .zip packaging {pull}21694[21694]
 - Add `priority` to `AddOrUpdate` on dynamic composable input providers communication channel {pull}22352[22352]
+- Ship `endpoint-security` logs to elasticsearch {pull}22526[22526]

x-pack/elastic-agent/pkg/agent/application/upgrade/step_download.go

@@ -43,12 +43,12 @@ func (u *Upgrader) downloadArtifact(ctx context.Context, version, sourceURI stri
 		return "", errors.New(err, "initiating fetcher")
 	}
 
-	path, err := fetcher.Download(ctx, agentName, agentArtifactName, version)
+	path, err := fetcher.Download(ctx, agentSpec, version)
 	if err != nil {
 		return "", errors.New(err, "failed upgrade of agent binary")
 	}
 
-	matches, err := verifier.Verify(agentName, version, agentArtifactName, true)
+	matches, err := verifier.Verify(agentSpec, version, true)
 	if err != nil {
 		return "", errors.New(err, "failed verification of agent binary")
 	}

x-pack/elastic-agent/pkg/agent/application/upgrade/upgrade.go

@@ -18,6 +18,7 @@ import (
 	"github.com/elastic/beats/v7/x-pack/elastic-agent/pkg/agent/application/paths"
 	"github.com/elastic/beats/v7/x-pack/elastic-agent/pkg/agent/errors"
 	"github.com/elastic/beats/v7/x-pack/elastic-agent/pkg/agent/install"
+	"github.com/elastic/beats/v7/x-pack/elastic-agent/pkg/agent/program"
 	"github.com/elastic/beats/v7/x-pack/elastic-agent/pkg/artifact"
 	"github.com/elastic/beats/v7/x-pack/elastic-agent/pkg/core/logger"
 	"github.com/elastic/beats/v7/x-pack/elastic-agent/pkg/core/state"
@@ -26,10 +27,17 @@ import (
 )
 
 const (
-	agentName         = "elastic-agent"
-	hashLen           = 6
-	agentCommitFile   = ".elastic-agent.active.commit"
-	agentArtifactName = "beats/" + agentName
+	agentName       = "elastic-agent"
+	hashLen         = 6
+	agentCommitFile = ".elastic-agent.active.commit"
+)
+
+var (
+	agentSpec = program.Spec{
+		Name:     "Elastic Agent",
+		Cmd:      agentName,
+		Artifact: "beats/" + agentName,
+	}
 )
 
 // Upgrader performs an upgrade

x-pack/elastic-agent/pkg/agent/operation/common_test.go

@@ -79,7 +79,7 @@ func getTestOperator(t *testing.T, downloadPath string, installPath string, p *a
 
 	// make the download path so the `operation_verify` can ensure the path exists
 	downloadConfig := operator.config.DownloadConfig
-	fullPath, err := artifact.GetArtifactPath(p.BinaryName(), p.Version(), downloadConfig.OS(), downloadConfig.Arch(), downloadConfig.TargetDirectory)
+	fullPath, err := artifact.GetArtifactPath(p.Spec(), p.Version(), downloadConfig.OS(), downloadConfig.Arch(), downloadConfig.TargetDirectory)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -137,35 +137,35 @@ func waitFor(t *testing.T, check func() error) {
 
 type DummyDownloader struct{}
 
-func (*DummyDownloader) Download(_ context.Context, p, a, v string) (string, error) {
+func (*DummyDownloader) Download(_ context.Context, _ program.Spec, _ string) (string, error) {
 	return "", nil
 }
 
 var _ download.Downloader = &DummyDownloader{}
 
 type DummyVerifier struct{}
 
-func (*DummyVerifier) Verify(p, v, _ string, _ bool) (bool, error) {
+func (*DummyVerifier) Verify(_ program.Spec, _ string, _ bool) (bool, error) {
 	return true, nil
 }
 
 var _ download.Verifier = &DummyVerifier{}
 
 type DummyInstallerChecker struct{}
 
-func (*DummyInstallerChecker) Check(_ context.Context, p, v, _ string) error {
+func (*DummyInstallerChecker) Check(_ context.Context, _ program.Spec, _, _ string) error {
 	return nil
 }
 
-func (*DummyInstallerChecker) Install(_ context.Context, p, v, _ string) error {
+func (*DummyInstallerChecker) Install(_ context.Context, _ program.Spec, _, _ string) error {
 	return nil
 }
 
 var _ install.InstallerChecker = &DummyInstallerChecker{}
 
 type DummyUninstaller struct{}
 
-func (*DummyUninstaller) Uninstall(_ context.Context, p, v, _ string) error {
+func (*DummyUninstaller) Uninstall(_ context.Context, _ program.Spec, _, _ string) error {
 	return nil
 }
 

x-pack/elastic-agent/pkg/agent/operation/monitoring.go

@@ -344,7 +344,7 @@ func (o *Operator) getLogFilePaths() map[string][]string {
 	defer o.appsLock.Unlock()
 
 	for _, a := range o.apps {
-		logPath := a.Monitor().LogPath(a.Name(), o.pipelineID)
+		logPath := a.Monitor().LogPath(a.Spec(), o.pipelineID)
 		if logPath != "" {
 			paths[a.Name()] = append(paths[a.Name()], logPath)
 		}
@@ -360,7 +360,7 @@ func (o *Operator) getMetricbeatEndpoints() map[string][]string {
 	defer o.appsLock.Unlock()
 
 	for _, a := range o.apps {
-		metricEndpoint := a.Monitor().MetricsPathPrefixed(a.Name(), o.pipelineID)
+		metricEndpoint := a.Monitor().MetricsPathPrefixed(a.Spec(), o.pipelineID)
 		if metricEndpoint != "" {
 			endpoints[a.Name()] = append(endpoints[a.Name()], metricEndpoint)
 		}

x-pack/elastic-agent/pkg/agent/operation/monitoring_test.go

@@ -9,6 +9,8 @@ import (
 	"testing"
 	"time"
 
+	"github.com/elastic/beats/v7/x-pack/elastic-agent/pkg/agent/program"
+
 	"github.com/elastic/elastic-agent-client/v7/pkg/proto"
 
 	"github.com/elastic/beats/v7/x-pack/elastic-agent/pkg/agent/application/info"
@@ -154,6 +156,7 @@ func (*testMonitorableApp) Shutdown() {}
 func (*testMonitorableApp) Configure(_ context.Context, config map[string]interface{}) error {
 	return nil
 }
+func (*testMonitorableApp) Spec() program.Spec                                          { return program.Spec{} }
 func (*testMonitorableApp) State() state.State                                          { return state.State{} }
 func (*testMonitorableApp) SetState(_ state.Status, _ string, _ map[string]interface{}) {}
 func (a *testMonitorableApp) Monitor() monitoring.Monitor                               { return a.monitor }
@@ -167,20 +170,22 @@ type testMonitor struct {
 
 // EnrichArgs enriches arguments provided to application, in order to enable
 // monitoring
-func (b *testMonitor) EnrichArgs(_ string, _ string, args []string, _ bool) []string { return args }
+func (b *testMonitor) EnrichArgs(_ program.Spec, _ string, args []string, _ bool) []string {
+	return args
+}
 
 // Cleanup cleans up all drops.
-func (b *testMonitor) Cleanup(string, string) error { return nil }
+func (b *testMonitor) Cleanup(program.Spec, string) error { return nil }
 
 // Close closes the monitor.
 func (b *testMonitor) Close() {}
 
 // Prepare executes steps in order for monitoring to work correctly
-func (b *testMonitor) Prepare(string, string, int, int) error { return nil }
+func (b *testMonitor) Prepare(program.Spec, string, int, int) error { return nil }
 
 // LogPath describes a path where application stores logs. Empty if
 // application is not monitorable
-func (b *testMonitor) LogPath(string, string) string {
+func (b *testMonitor) LogPath(program.Spec, string) string {
 	if !b.monitorLogs {
 		return ""
 	}
@@ -189,15 +194,15 @@ func (b *testMonitor) LogPath(string, string) string {
 
 // MetricsPath describes a location where application exposes metrics
 // collectable by metricbeat.
-func (b *testMonitor) MetricsPath(string, string) string {
+func (b *testMonitor) MetricsPath(program.Spec, string) string {
 	if !b.monitorMetrics {
 		return ""
 	}
 	return "path"
 }
 
 // MetricsPathPrefixed return metrics path prefixed with http+ prefix.
-func (b *testMonitor) MetricsPathPrefixed(string, string) string {
+func (b *testMonitor) MetricsPathPrefixed(program.Spec, string) string {
 	return "http+path"
 }
 

x-pack/elastic-agent/pkg/agent/operation/operation.go

@@ -10,6 +10,7 @@ import (
 	"github.com/elastic/elastic-agent-client/v7/pkg/proto"
 
 	"github.com/elastic/beats/v7/x-pack/elastic-agent/pkg/agent/errors"
+	"github.com/elastic/beats/v7/x-pack/elastic-agent/pkg/agent/program"
 	"github.com/elastic/beats/v7/x-pack/elastic-agent/pkg/core/app"
 	"github.com/elastic/beats/v7/x-pack/elastic-agent/pkg/core/monitoring"
 	"github.com/elastic/beats/v7/x-pack/elastic-agent/pkg/core/server"
@@ -42,13 +43,15 @@ type Application interface {
 	Configure(ctx context.Context, config map[string]interface{}) error
 	Monitor() monitoring.Monitor
 	State() state.State
+	Spec() program.Spec
 	SetState(status state.Status, msg string, payload map[string]interface{})
 	OnStatusChange(s *server.ApplicationState, status proto.StateObserved_Status, msg string, payload map[string]interface{})
 }
 
 // Descriptor defines a program which needs to be run.
 // Is passed around operator operations.
 type Descriptor interface {
+	Spec() program.Spec
 	ServicePort() int
 	BinaryName() string
 	ArtifactName() string

x-pack/elastic-agent/pkg/agent/operation/operation_fetch.go

@@ -48,7 +48,7 @@ func (o *operationFetch) Name() string {
 // If the artifacts already exists then fetch will not be ran.
 func (o *operationFetch) Check(_ context.Context, _ Application) (bool, error) {
 	downloadConfig := o.operatorConfig.DownloadConfig
-	fullPath, err := artifact.GetArtifactPath(o.program.BinaryName(), o.program.Version(), downloadConfig.OS(), downloadConfig.Arch(), downloadConfig.TargetDirectory)
+	fullPath, err := artifact.GetArtifactPath(o.program.Spec(), o.program.Version(), downloadConfig.OS(), downloadConfig.Arch(), downloadConfig.TargetDirectory)
 	if err != nil {
 		return false, err
 	}
@@ -70,7 +70,7 @@ func (o *operationFetch) Run(ctx context.Context, application Application) (err
 		}
 	}()
 
-	fullPath, err := o.downloader.Download(ctx, o.program.BinaryName(), o.program.ArtifactName(), o.program.Version())
+	fullPath, err := o.downloader.Download(ctx, o.program.Spec(), o.program.Version())
 	if err == nil {
 		o.logger.Infof("operation '%s' downloaded %s.%s into %s", o.Name(), o.program.BinaryName(), o.program.Version(), fullPath)
 	}

x-pack/elastic-agent/pkg/agent/operation/operation_install.go

@@ -45,7 +45,7 @@ func (o *operationInstall) Name() string {
 //
 // If the installation directory already exists then it will not be ran.
 func (o *operationInstall) Check(ctx context.Context, _ Application) (bool, error) {
-	err := o.installer.Check(ctx, o.program.BinaryName(), o.program.Version(), o.program.Directory())
+	err := o.installer.Check(ctx, o.program.Spec(), o.program.Version(), o.program.Directory())
 	if err != nil {
 		// don't return err, just state if Run should be called
 		return true, nil
@@ -61,5 +61,5 @@ func (o *operationInstall) Run(ctx context.Context, application Application) (er
 		}
 	}()
 
-	return o.installer.Install(ctx, o.program.BinaryName(), o.program.Version(), o.program.Directory())
+	return o.installer.Install(ctx, o.program.Spec(), o.program.Version(), o.program.Directory())
 }

x-pack/elastic-agent/pkg/agent/operation/operation_uninstall.go

@@ -51,5 +51,5 @@ func (o *operationUninstall) Run(ctx context.Context, application Application) (
 		}
 	}()
 
-	return o.uninstaller.Uninstall(ctx, o.program.BinaryName(), o.program.Version(), o.program.Directory())
+	return o.uninstaller.Uninstall(ctx, o.program.Spec(), o.program.Version(), o.program.Directory())
 }

x-pack/elastic-agent/pkg/agent/operation/operation_verify.go

@@ -45,7 +45,7 @@ func (o *operationVerify) Name() string {
 // Only if the artifacts exists does it need to be verified.
 func (o *operationVerify) Check(_ context.Context, _ Application) (bool, error) {
 	downloadConfig := o.operatorConfig.DownloadConfig
-	fullPath, err := artifact.GetArtifactPath(o.program.BinaryName(), o.program.Version(), downloadConfig.OS(), downloadConfig.Arch(), downloadConfig.TargetDirectory)
+	fullPath, err := artifact.GetArtifactPath(o.program.Spec(), o.program.Version(), downloadConfig.OS(), downloadConfig.Arch(), downloadConfig.TargetDirectory)
 	if err != nil {
 		return false, err
 	}
@@ -66,7 +66,7 @@ func (o *operationVerify) Run(_ context.Context, application Application) (err e
 		}
 	}()
 
-	isVerified, err := o.verifier.Verify(o.program.BinaryName(), o.program.Version(), o.program.ArtifactName(), true)
+	isVerified, err := o.verifier.Verify(o.program.Spec(), o.program.Version(), true)
 	if err != nil {
 		return errors.New(err,
 			fmt.Sprintf("operation '%s' failed to verify %s.%s", o.Name(), o.program.BinaryName(), o.program.Version()),

x-pack/elastic-agent/pkg/agent/operation/operator.go

@@ -256,9 +256,9 @@ func (o *Operator) getApp(p Descriptor) (Application, error) {
 		return a, nil
 	}
 
-	specifier, ok := p.(app.Specifier)
+	desc, ok := p.(*app.Descriptor)
 	if !ok {
-		return nil, fmt.Errorf("descriptor is not an app.Specifier")
+		return nil, fmt.Errorf("descriptor is not an app.Descriptor")
 	}
 
 	// TODO: (michal) join args into more compact options version
@@ -272,7 +272,7 @@ func (o *Operator) getApp(p Descriptor) (Application, error) {
 			p.BinaryName(),
 			o.pipelineID,
 			o.config.LoggingConfig.Level.String(),
-			specifier,
+			desc,
 			o.srv,
 			o.config,
 			o.logger,
@@ -288,7 +288,7 @@ func (o *Operator) getApp(p Descriptor) (Application, error) {
 			o.pipelineID,
 			o.config.LoggingConfig.Level.String(),
 			p.ServicePort(),
-			specifier,
+			desc,
 			o.srv,
 			o.config,
 			o.logger,

x-pack/elastic-agent/pkg/agent/operation/operator_test.go

@@ -390,7 +390,7 @@ func TestConfigurableService(t *testing.T) {
 	defer operator.stop(p) // failure catch, to ensure no sub-process stays running
 
 	// emulating a service, so we need to start the binary here in the test
-	spec := p.Spec()
+	spec := p.ProcessSpec()
 	cmd := exec.Command(spec.BinaryPath, fmt.Sprintf("%d", p.ServicePort()))
 	cmd.Env = append(cmd.Env, os.Environ()...)
 	cmd.Dir = filepath.Dir(spec.BinaryPath)
@@ -445,7 +445,7 @@ func TestConfigurableService(t *testing.T) {
 
 func isAvailable(name, version string) error {
 	p := getProgram(name, version)
-	spec := p.Spec()
+	spec := p.ProcessSpec()
 	path := spec.BinaryPath
 	if runtime.GOOS == "windows" {
 		path += ".exe"

x-pack/elastic-agent/pkg/agent/program/spec.go

@@ -32,6 +32,8 @@ type Spec struct {
 	Cmd               string               `yaml:"cmd"`
 	Args              []string             `yaml:"args"`
 	Artifact          string               `yaml:"artifact"`
+	LogPaths          map[string]string    `yaml:"log_paths,omitempty"`
+	MetricEndpoints   map[string]string    `yaml:"metric_endpoints,omitempty"`
 	Rules             *transpiler.RuleList `yaml:"rules"`
 	CheckInstallSteps *transpiler.StepList `yaml:"check_install"`
 	PostInstallSteps  *transpiler.StepList `yaml:"post_install"`