Envtest based integration tests for Fission (#2858)

* skeleton for envtest fission
* Refactor code and add CLI test
* hack
* Update server test
* remove skip-ci for lint tests
* Pass client go storagesvc
* Add clientGen interface across code
* Fix storagesvc test
* Fix cmd client
* add retry in server test
* Fix concurrenct access to pool deployment
* Remove old executor test
* get rid of ginkgo/gomega
* disable flaky test
* flaky test
* revert ci change
* handle err from ParseBool

---------

Signed-off-by: Sanket Sudake <sanketsudake@gmail.com>
Co-authored-by: Pranoy Kundu <pranoy1998k@gmail.com>

cmd/fetcher/app/server.go

@@ -28,6 +28,7 @@ import (
 	"go.opentelemetry.io/otel"
 	"go.uber.org/zap"
 
+	"github.com/fission/fission/pkg/crd"
 	"github.com/fission/fission/pkg/fetcher"
 	"github.com/fission/fission/pkg/utils/httpserver"
 	otelUtils "github.com/fission/fission/pkg/utils/otel"
@@ -37,7 +38,7 @@ var (
 	readyToServe uint32
 )
 
-func Run(ctx context.Context, logger *zap.Logger) {
+func Run(ctx context.Context, clientGen crd.ClientGeneratorInterface, logger *zap.Logger) {
 	flag.Usage = fetcherUsage
 	specializeOnStart := flag.Bool("specialize-on-startup", false, "Flag to activate specialize process at pod startup")
 	specializePayload := flag.String("specialize-request", "", "JSON payload for specialize request")
@@ -72,7 +73,7 @@ func Run(ctx context.Context, logger *zap.Logger) {
 	ctx, span := tracer.Start(ctx, "fetcher/Run")
 	defer span.End()
 
-	f, err := fetcher.MakeFetcher(logger, dir, *secretDir, *configDir)
+	f, err := fetcher.MakeFetcher(logger, clientGen, dir, *secretDir, *configDir)
 	if err != nil {
 		logger.Fatal("error making fetcher", zap.Error(err))
 	}

cmd/fetcher/main.go

@@ -20,6 +20,7 @@ import (
 	"sigs.k8s.io/controller-runtime/pkg/manager/signals"
 
 	"github.com/fission/fission/cmd/fetcher/app"
+	"github.com/fission/fission/pkg/crd"
 	"github.com/fission/fission/pkg/utils/loggerfactory"
 	"github.com/fission/fission/pkg/utils/profile"
 )
@@ -31,5 +32,5 @@ func main() {
 
 	ctx := signals.SetupSignalHandler()
 	profile.ProfileIfEnabled(ctx, logger)
-	app.Run(ctx, logger)
+	app.Run(ctx, crd.NewClientGenerator(), logger)
 }