[v2] Configure health check extension for all configs (#5861)

**Which problem is this PR solving?**

Part of #5633, part of #5859

**Description of the changes**
* Integrate health check extension to monitor and report Jaeger V2
component's health
* Enhance all-in-one CI test to ping the new health port

**How was this change tested?**

The changes were tested by running the following command:

```bash
make test
```
```bash
CI actions and new Unit Tests
```
**Checklist**

- [x] I have read
[CONTRIBUTING_GUIDELINES.md](https://github.com/jaegertracing/jaeger/blob/master/CONTRIBUTING_GUIDELINES.md)
- [x] I have signed all commits
- [x] I have added unit tests for the new functionality
- [x] I have run lint and test steps successfully
  - `for jaeger: make lint test`
  - `for jaeger-ui: yarn lint` and `yarn test`

---------

Signed-off-by: Wise-Wizard <saransh.shankar@gmail.com>
Signed-off-by: Yuri Shkuro <github@ysh.us>
Co-authored-by: Yuri Shkuro <yurishkuro@users.noreply.github.com>
Co-authored-by: Yuri Shkuro <github@ysh.us>

cmd/jaeger/config-badger.yaml

@@ -1,12 +1,16 @@
 service:
-  extensions: [jaeger_storage, jaeger_query]
+  extensions: [jaeger_storage, jaeger_query, healthcheckv2]
   pipelines:
     traces:
       receivers: [otlp]
       processors: [batch]
       exporters: [jaeger_storage_exporter]
 
 extensions:
+  healthcheckv2:
+    use_v2: true
+    http:
+
   jaeger_query:
     trace_storage: some_store
     trace_storage_archive: another_store

cmd/jaeger/config-cassandra.yaml

@@ -1,12 +1,16 @@
 service:
-  extensions: [jaeger_storage, jaeger_query]
+  extensions: [jaeger_storage, jaeger_query, healthcheckv2]
   pipelines:
     traces:
       receivers: [otlp]
       processors: [batch]
       exporters: [jaeger_storage_exporter]
 
 extensions:
+  healthcheckv2:
+    use_v2: true
+    http:
+
   jaeger_query:
     trace_storage: some_storage
     trace_storage_archive: another_storage

cmd/jaeger/config-elasticsearch.yaml

@@ -1,12 +1,16 @@
 service:
-  extensions: [jaeger_storage, jaeger_query]
+  extensions: [jaeger_storage, jaeger_query, healthcheckv2]
   pipelines:
     traces:
       receivers: [otlp]
       processors: [batch]
       exporters: [jaeger_storage_exporter]
 
 extensions:
+  healthcheckv2:
+    use_v2: true
+    http:
+
   jaeger_query:
     trace_storage: some_storage
     trace_storage_archive: another_storage

cmd/jaeger/collector-with-kafka.yaml → cmd/jaeger/config-kafka-collector.yaml

@@ -1,4 +1,5 @@
 service:
+  extensions: [healthcheckv2]
   pipelines:
     traces:
       receivers: [otlp, jaeger]
@@ -10,6 +11,11 @@ service:
     metrics:
       level: detailed
 
+extensions:
+  healthcheckv2:
+    use_v2: true
+    http:
+
 receivers:
   otlp:
     protocols:

cmd/jaeger/ingester-remote-storage.yaml → cmd/jaeger/config-kafka-ingester.yaml

@@ -1,5 +1,5 @@
 service:
-  extensions: [jaeger_storage, jaeger_query]
+  extensions: [jaeger_storage, jaeger_query, healthcheckv2]
   pipelines:
     traces:
       receivers: [kafka]
@@ -12,6 +12,12 @@ service:
       level: debug
 
 extensions:
+  healthcheckv2:
+    use_v2: true
+    http:
+      # use different port to avoid conflict with collector
+      endpoint: 0.0.0.0:14133
+
   jaeger_query:
     trace_storage: some_storage
 
@@ -21,7 +27,7 @@ extensions:
         memory:
           max_traces: 100000
 
-receivers:  
+receivers:
   kafka:
     brokers:
       - localhost:9092

cmd/jaeger/config-opensearch.yaml

@@ -1,12 +1,16 @@
 service:
-  extensions: [jaeger_storage, jaeger_query]
+  extensions: [jaeger_storage, jaeger_query, healthcheckv2]
   pipelines:
     traces:
       receivers: [otlp]
       processors: [batch]
       exporters: [jaeger_storage_exporter]
 
 extensions:
+  healthcheckv2:
+    use_v2: true
+    http:
+
   jaeger_query:
     trace_storage: some_storage
     trace_storage_archive: another_storage

cmd/jaeger/config-remote-storage.yaml

@@ -1,12 +1,16 @@
 service:
-  extensions: [jaeger_storage, jaeger_query]
+  extensions: [jaeger_storage, jaeger_query, healthcheckv2]
   pipelines:
     traces:
       receivers: [otlp]
       processors: [batch]
       exporters: [jaeger_storage_exporter]
 
 extensions:
+  healthcheckv2:
+    use_v2: true
+    http:
+
   jaeger_query:
     trace_storage: some-storage
     ui_config: ./cmd/jaeger/config-ui.json

cmd/jaeger/config.yaml

@@ -1,13 +1,16 @@
 service:
-  extensions: [jaeger_storage, jaeger_query, remote_sampling]
+  extensions: [jaeger_storage, jaeger_query, remote_sampling, healthcheckv2]
   pipelines:
     traces:
       receivers: [otlp, jaeger, zipkin]
       processors: [batch, adaptive_sampling]
       exporters: [jaeger_storage_exporter]
 
 extensions:
-  # health_check:
+  healthcheckv2:
+    use_v2: true
+    http:
+
   # pprof:
   #   endpoint: 0.0.0.0:1777
   # zpages:

cmd/jaeger/internal/integration/e2e_integration.go

@@ -4,13 +4,16 @@
 package integration
 
 import (
+	"bytes"
 	"context"
+	"encoding/json"
 	"fmt"
 	"io"
 	"net/http"
 	"os"
 	"os/exec"
 	"path/filepath"
+	"strings"
 	"testing"
 	"time"
 
@@ -41,6 +44,7 @@ type E2EStorageIntegration struct {
 
 	SkipStorageCleaner  bool
 	ConfigFile          string
+	BinaryName          string
 	HealthCheckEndpoint string
 }
 
@@ -49,32 +53,34 @@ type E2EStorageIntegration struct {
 // This function should be called before any of the tests start.
 func (s *E2EStorageIntegration) e2eInitialize(t *testing.T, storage string) {
 	logger := zaptest.NewLogger(t, zaptest.WrapOptions(zap.AddCaller()))
+	if s.BinaryName == "" {
+		s.BinaryName = "jaeger-v2"
+	}
 	configFile := s.ConfigFile
 	if !s.SkipStorageCleaner {
 		configFile = createStorageCleanerConfig(t, s.ConfigFile, storage)
 	}
-
 	configFile, err := filepath.Abs(configFile)
 	require.NoError(t, err, "Failed to get absolute path of the config file")
 	require.FileExists(t, configFile, "Config file does not exist at the resolved path")
 
-	t.Logf("Starting Jaeger-v2 in the background with config file %s", configFile)
+	t.Logf("Starting %s in the background with config file %s", s.BinaryName, configFile)
 
 	outFile, err := os.OpenFile(
 		filepath.Join(t.TempDir(), "jaeger_output_logs.txt"),
 		os.O_CREATE|os.O_WRONLY,
 		os.ModePerm,
 	)
 	require.NoError(t, err)
-	t.Logf("Writing the Jaeger-v2 output logs into %s", outFile.Name())
+	t.Logf("Writing the %s output logs into %s", s.BinaryName, outFile.Name())
 
 	errFile, err := os.OpenFile(
 		filepath.Join(t.TempDir(), "jaeger_error_logs.txt"),
 		os.O_CREATE|os.O_WRONLY,
 		os.ModePerm,
 	)
 	require.NoError(t, err)
-	t.Logf("Writing the Jaeger-v2 error logs into %s", errFile.Name())
+	t.Logf("Writing the %s error logs into %s", s.BinaryName, errFile.Name())
 
 	cmd := exec.Cmd{
 		Path: "./cmd/jaeger/jaeger",
@@ -88,57 +94,38 @@ func (s *E2EStorageIntegration) e2eInitialize(t *testing.T, storage string) {
 	}
 	t.Logf("Running command: %v", cmd.Args)
 	require.NoError(t, cmd.Start())
-
-	// Wait for the binary to start and become ready to serve requests.
-	healthCheckEndpoint := s.HealthCheckEndpoint
-	if healthCheckEndpoint == "" {
-		healthCheckEndpoint = fmt.Sprintf("http://localhost:%d/", ports.QueryHTTP)
-	}
-	require.Eventually(t, func() bool {
-		t.Logf("Checking if Jaeger-v2 is available on %s", healthCheckEndpoint)
-		ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
-		defer cancel()
-		req, err := http.NewRequestWithContext(ctx, http.MethodGet, healthCheckEndpoint, nil)
-		if err != nil {
-			t.Logf("HTTP request creation failed: %v", err)
-			return false
-		}
-		resp, err := http.DefaultClient.Do(req)
-		if err != nil {
-			t.Logf("HTTP request failed: %v", err)
-			return false
-		}
-		defer resp.Body.Close()
-		return resp.StatusCode == http.StatusOK
-	}, 60*time.Second, 3*time.Second, "Jaeger-v2 did not start")
-	t.Log("Jaeger-v2 is ready")
 	t.Cleanup(func() {
 		if err := cmd.Process.Kill(); err != nil {
-			t.Errorf("Failed to kill Jaeger-v2 process: %v", err)
+			t.Errorf("Failed to kill %s process: %v", s.BinaryName, err)
 		}
 		if t.Failed() {
 			// A Github Actions special annotation to create a foldable section
 			// in the Github runner output.
 			// https://docs.github.com/en/actions/using-workflows/workflow-commands-for-github-actions#grouping-log-lines
-			fmt.Println("::group::🚧 🚧 🚧 Jaeger-v2 binary logs")
+			fmt.Printf("::group::🚧 🚧 🚧 %s binary logs\n", s.BinaryName)
 			outLogs, err := os.ReadFile(outFile.Name())
 			if err != nil {
 				t.Errorf("Failed to read output logs: %v", err)
 			} else {
-				fmt.Printf("🚧 🚧 🚧 Jaeger-v2 output logs:\n%s", outLogs)
+				fmt.Printf("🚧 🚧 🚧 %s output logs:\n%s", s.BinaryName, outLogs)
 			}
 
 			errLogs, err := os.ReadFile(errFile.Name())
 			if err != nil {
 				t.Errorf("Failed to read error logs: %v", err)
 			} else {
-				fmt.Printf("🚧 🚧 🚧 Jaeger-v2 error logs:\n%s", errLogs)
+				fmt.Printf("🚧 🚧 🚧 %s error logs:\n%s", s.BinaryName, errLogs)
 			}
 			// End of Github Actions foldable section annotation.
 			fmt.Println("::endgroup::")
 		}
 	})
 
+	// Wait for the binary to start and become ready to serve requests.
+	require.Eventually(t, func() bool { return s.doHealthCheck(t) },
+		60*time.Second, 3*time.Second, "%s did not start", s.BinaryName)
+	t.Logf("%s is ready", s.BinaryName)
+
 	s.SpanWriter, err = createSpanWriter(logger, otlpPort)
 	require.NoError(t, err)
 	s.SpanReader, err = createSpanReader(logger, ports.QueryGRPC)
@@ -150,6 +137,56 @@ func (s *E2EStorageIntegration) e2eInitialize(t *testing.T, storage string) {
 	})
 }
 
+func (s *E2EStorageIntegration) doHealthCheck(t *testing.T) bool {
+	healthCheckEndpoint := s.HealthCheckEndpoint
+	if healthCheckEndpoint == "" {
+		healthCheckEndpoint = "http://localhost:13133/status"
+	}
+	t.Logf("Checking if %s is available on %s", s.BinaryName, healthCheckEndpoint)
+	ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
+	defer cancel()
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, healthCheckEndpoint, nil)
+	if err != nil {
+		t.Logf("HTTP request creation failed: %v", err)
+		return false
+	}
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		t.Logf("HTTP request failed: %v", err)
+		return false
+	}
+	defer resp.Body.Close()
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		t.Logf("Failed to read HTTP response body: %v", err)
+		return false
+	}
+	if resp.StatusCode != http.StatusOK {
+		t.Logf("HTTP response not OK: %v", string(body))
+		return false
+	}
+	// for backwards compatibility with other healthchecks
+	if !strings.HasSuffix(healthCheckEndpoint, "/status") {
+		t.Logf("OK HTTP from endpoint that is not healthcheckv2")
+		return true
+	}
+
+	var healthResponse struct {
+		Status string `json:"status"`
+	}
+	if err := json.NewDecoder(bytes.NewReader(body)).Decode(&healthResponse); err != nil {
+		t.Logf("Failed to decode JSON response '%s': %v", string(body), err)
+		return false
+	}
+
+	// Check if the status field in the JSON is "StatusOK"
+	if healthResponse.Status != "StatusOK" {
+		t.Logf("Received non-K status %s: %s", healthResponse.Status, string(body))
+		return false
+	}
+	return true
+}
+
 // e2eCleanUp closes the SpanReader and SpanWriter gRPC connection.
 // This function should be called after all the tests are finished.
 func (s *E2EStorageIntegration) e2eCleanUp(t *testing.T) {
@@ -205,6 +242,7 @@ func createStorageCleanerConfig(t *testing.T, configFile string, storage string)
 	err = os.WriteFile(tempFile, newData, 0o600)
 	require.NoError(t, err)
 
+	t.Logf("Transformed configuration file %s to %s", configFile, tempFile)
 	return tempFile
 }
 

cmd/jaeger/internal/integration/grpc_test.go

@@ -4,9 +4,11 @@
 package integration
 
 import (
+	"fmt"
 	"testing"
 
 	"github.com/jaegertracing/jaeger/plugin/storage/integration"
+	"github.com/jaegertracing/jaeger/ports"
 )
 
 type GRPCStorageIntegration struct {
@@ -30,6 +32,8 @@ func TestGRPCStorage(t *testing.T) {
 	s := &GRPCStorageIntegration{
 		E2EStorageIntegration: E2EStorageIntegration{
 			ConfigFile: "../../config-remote-storage.yaml",
+			// TODO this should be removed in favor of default health check endpoint
+			HealthCheckEndpoint: fmt.Sprintf("http://localhost:%d/", ports.QueryHTTP),
 		},
 	}
 	s.CleanUp = s.cleanUp