Make AdoptExistingResources optional (#1453)

pkg/executor/executor.go

@@ -20,6 +20,8 @@ import (
 	"context"
 	"fmt"
 	"net/http"
+	"os"
+	"strconv"
 	"strings"
 	"sync"
 	"time"
@@ -242,16 +244,18 @@ func StartExecutor(logger *zap.Logger, functionNamespace string, envBuilderNames
 	executorTypes[gpm.GetTypeName()] = gpm
 	executorTypes[ndm.GetTypeName()] = ndm
 
-	wg := &sync.WaitGroup{}
-	for _, et := range executorTypes {
-		wg.Add(1)
-		go func(et executortype.ExecutorType) {
-			defer wg.Done()
-			et.AdoptOrphanResources()
-		}(et)
+	if ok, _ := strconv.ParseBool(os.Getenv("ADOPT_EXISTING_RESOURCES")); ok {
+		wg := &sync.WaitGroup{}
+		for _, et := range executorTypes {
+			wg.Add(1)
+			go func(et executortype.ExecutorType) {
+				defer wg.Done()
+				et.AdoptExistingResources()
+			}(et)
+		}
+		// set hard timeout for resource adoption
+		util.WaitTimeout(wg, 30*time.Second)
 	}
-	// set hard timeout for resource adoption
-	util.WaitTimeout(wg, 30*time.Second)
 
 	cms := cms.MakeConfigSecretController(logger, fissionClient, kubernetesClient, executorTypes)
 

pkg/executor/executortype/executortype.go

@@ -52,5 +52,5 @@ type ExecutorType interface {
 	RefreshFuncPods(*zap.Logger, fv1.Function) error
 
 	// AdoptOrphanResources adopts existing resources created by the deleted executor.
-	AdoptOrphanResources()
+	AdoptExistingResources()
 }

pkg/executor/executortype/newdeploy/newdeploymgr.go

@@ -244,7 +244,7 @@ func (deploy *NewDeploy) RefreshFuncPods(logger *zap.Logger, f fv1.Function) err
 	return nil
 }
 
-func (deploy *NewDeploy) AdoptOrphanResources() {
+func (deploy *NewDeploy) AdoptExistingResources() {
 	l := map[string]string{
 		types.EXECUTOR_TYPE: string(fv1.ExecutorTypeNewdeploy),
 	}

pkg/executor/executortype/poolmgr/gpm.go

@@ -243,7 +243,7 @@ func (gpm *GenericPoolManager) RefreshFuncPods(logger *zap.Logger, f fv1.Functio
 	return nil
 }
 
-func (gpm *GenericPoolManager) AdoptOrphanResources() {
+func (gpm *GenericPoolManager) AdoptExistingResources() {
 	envs, err := gpm.fissionClient.Environments(metav1.NamespaceAll).List(metav1.ListOptions{})
 	if err != nil {
 		gpm.logger.Error("error getting environment list", zap.Error(err))
@@ -573,9 +573,12 @@ func (gpm *GenericPoolManager) idleObjectReaper() {
 				}
 				if deleted {
 					for i := range fsvc.KubernetesObjects {
-						gpm.logger.Debug("release idle function resources",
-							zap.String("function", fsvc.Name), zap.String("address", fsvc.Address),
-							zap.String("executor", string(fsvc.Executor)))
+						gpm.logger.Info("release idle function resources",
+							zap.String("function", fsvc.Function.Name),
+							zap.String("address", fsvc.Address),
+							zap.String("executor", string(fsvc.Executor)),
+							zap.String("pod", fsvc.Name),
+						)
 						reaper.CleanupKubeObject(gpm.logger, gpm.kubernetesClient, &fsvc.KubernetesObjects[i])
 						time.Sleep(50 * time.Millisecond)
 					}