OpenTracing for Fission (#1079)

Added Opentracing integration using opencensus libraries for all Fission components.

buildermgr/common.go

@@ -17,6 +17,7 @@ limitations under the License.
 package buildermgr
 
 import (
+	"context"
 	"fmt"
 	"log"
 	"net/http"
@@ -37,7 +38,7 @@ import (
 // 3. Send upload request to fetcher to upload deployment package.
 // 4. Return upload response and build logs.
 // *. Return build logs and error if any one of steps above failed.
-func buildPackage(fissionClient *crd.FissionClient, envBuilderNamespace string,
+func buildPackage(ctx context.Context, fissionClient *crd.FissionClient, envBuilderNamespace string,
 	storageSvcUrl string, pkg *crd.Package) (uploadResp *fission.ArchiveUploadResponse, buildLogs string, err error) {
 
 	env, err := fissionClient.Environments(pkg.Spec.Environment.Namespace).Get(pkg.Spec.Environment.Name)
@@ -60,7 +61,7 @@ func buildPackage(fissionClient *crd.FissionClient, envBuilderNamespace string,
 	}
 
 	// send fetch request to fetcher
-	err = fetcherC.Fetch(fetchReq)
+	err = fetcherC.Fetch(ctx, fetchReq)
 	if err != nil {
 		e := fmt.Sprintf("Error fetching source package: %v", err)
 		log.Println(e)
@@ -103,7 +104,7 @@ func buildPackage(fissionClient *crd.FissionClient, envBuilderNamespace string,
 
 	log.Printf("Start uploading deployment package: %v", buildResp.ArtifactFilename)
 	// ask fetcher to upload the deployment package
-	uploadResp, err = fetcherC.Upload(uploadReq)
+	uploadResp, err = fetcherC.Upload(ctx, uploadReq)
 	if err != nil {
 		e := fmt.Sprintf("Error uploading deployment package: %v", err)
 		log.Println(e)

buildermgr/envwatcher.go

@@ -82,6 +82,7 @@ type (
 		fetcherImagePullPolicy apiv1.PullPolicy
 		builderImagePullPolicy apiv1.PullPolicy
 		useIstio               bool
+		collectorEndpoint      string
 	}
 )
 
@@ -105,6 +106,7 @@ func makeEnvironmentWatcher(fissionClient *crd.FissionClient,
 
 	fetcherImagePullPolicy := fission.GetImagePullPolicy(os.Getenv("FETCHER_IMAGE_PULL_POLICY"))
 	builderImagePullPolicy := fission.GetImagePullPolicy(os.Getenv("BUILDER_IMAGE_PULL_POLICY"))
+	collectorEndpoint := os.Getenv("TRACE_JAEGER_COLLECTOR_ENDPOINT")
 
 	envWatcher := &environmentWatcher{
 		cache:                  make(map[string]*builderInfo),
@@ -116,6 +118,7 @@ func makeEnvironmentWatcher(fissionClient *crd.FissionClient,
 		fetcherImagePullPolicy: fetcherImagePullPolicy,
 		builderImagePullPolicy: builderImagePullPolicy,
 		useIstio:               useIstio,
+		collectorEndpoint:      collectorEndpoint,
 	}
 
 	go envWatcher.service()
@@ -590,6 +593,7 @@ func (envw *environmentWatcher) createBuilderDeployment(env *crd.Environment, ns
 							Command: []string{"/fetcher",
 								"-secret-dir", sharedSecretPath,
 								"-cfgmap-dir", sharedCfgMapPath,
+								"-jaeger-collector-endpoint", envw.collectorEndpoint,
 								sharedMountPath},
 							ReadinessProbe: &apiv1.Probe{
 								InitialDelaySeconds: 5,

buildermgr/pkgwatcher.go

@@ -17,6 +17,7 @@ limitations under the License.
 package buildermgr
 
 import (
+	"context"
 	"fmt"
 	"log"
 	"time"
@@ -160,7 +161,8 @@ func (pkgw *packageWatcher) build(buildCache *cache.Cache, srcpkg *crd.Package)
 				log.Printf("Setup rolebinding for sa : %s.%s for pkg : %s.%s", fission.FissionBuilderSA, builderNs, pkg.Metadata.Name, pkg.Metadata.Namespace)
 			}
 
-			uploadResp, buildLogs, err := buildPackage(pkgw.fissionClient, builderNs, pkgw.storageSvcUrl, pkg)
+			ctx := context.Background()
+			uploadResp, buildLogs, err := buildPackage(ctx, pkgw.fissionClient, builderNs, pkgw.storageSvcUrl, pkg)
 			if err != nil {
 				log.Printf("Error building package %v: %v", pkg.Metadata.Name, err)
 				updatePackage(pkgw.fissionClient, pkg, fission.BuildStatusFailed, buildLogs, nil)