.gitignore

@@ -1,3 +1,4 @@
 k6
 *.bolt
 presets
+bin

Makefile

@@ -0,0 +1,94 @@
+#!/usr/bin/make -f
+
+# Common variables
+REPO ?= $(shell go list -m)
+VERSION ?= $(shell git describe --tags --dirty --match "v*" --always --abbrev=8 2>/dev/null || cat VERSION 2>/dev/null || echo "develop")
+GO_VERSION ?= 1.19
+LINT_VERSION ?= 1.49.0
+BINDIR = bin
+
+# Binaries to build
+CMDS = $(addprefix frostfs-, $(notdir $(wildcard cmd/*)))
+BINS = $(addprefix $(BINDIR)/, $(CMDS))
+
+.PHONY: all $(BINS) $(BINDIR) dep docker/ test cover format lint docker/lint pre-commit unpre-commit version clean
+
+# Make all binaries
+all: $(BINS)
+
+$(BINS): $(BINDIR) dep
+	@echo "⇒ Build $@"
+	CGO_ENABLED=0 \
+	go build -v -trimpath \
+	-ldflags "-X $(REPO)/internal/version.Version=$(VERSION)" \
+	-o $@ ./cmd/$(subst frostfs-,,$(notdir $@))
+
+$(BINDIR):
+	@echo "⇒ Ensure dir: $@"
+	@mkdir -p $@
+
+# Pull go dependencies
+dep:
+	@printf "⇒ Download requirements: "
+	@CGO_ENABLED=0 \
+	go mod download && echo OK
+	@printf "⇒ Tidy requirements: "
+	@CGO_ENABLED=0 \
+	go mod tidy -v && echo OK
+
+# Run `make %` in Golang container, for more information run `make help.docker/%`
+docker/%:
+	$(if $(filter $*,all $(BINS)), \
+		@echo "=> Running 'make $*' in clean Docker environment" && \
+		docker run --rm -t \
+		  -v `pwd`:/src \
+		  -w /src \
+		  -u `stat -c "%u:%g" .` \
+		  --env HOME=/src \
+		  golang:$(GO_VERSION) make $*,\
+	  	@echo "supported docker targets: all $(BINS) lint")
+
+# Run tests
+test:
+	@go test ./... -cover
+
+# Run tests with race detection and produce coverage output
+cover:
+	@go test -v -race ./... -coverprofile=coverage.txt -covermode=atomic
+	@go tool cover -html=coverage.txt -o coverage.html
+
+# Reformat code
+format:
+	@echo "⇒ Processing gofmt check"
+	@gofmt -s -w ./
+
+# Run linters
+lint:
+	@golangci-lint --timeout=5m run
+
+# Run linters in Docker
+docker/lint:
+	docker run --rm -it \
+	-v `pwd`:/src \
+	-u `stat -c "%u:%g" .` \
+	--env HOME=/src \
+	golangci/golangci-lint:v$(LINT_VERSION) bash -c 'cd /src/ && make lint'
+
+# Activate pre-commit hooks
+pre-commit:
+	pre-commit install -t pre-commit -t commit-msg
+
+# Deactivate pre-commit hooks
+unpre-commit:
+	pre-commit uninstall -t pre-commit -t commit-msg
+
+# Show current version
+version:
+	@echo $(VERSION)
+
+# Clean up files
+clean:
+	rm -rf .cache
+	rm -rf $(BINDIR)
+
+include help.mk

README.md

@@ -148,6 +148,41 @@ const local_client = local.connect("/path/to/config.yaml", params, bucketMapping
 
 See native protocol and s3 test suite examples in [examples](./examples) dir.
 
+# Command line utils
+
+To build all command line utils just run:
+
+```shell
+$ make
+```
+
+All binaries will be in `bin` directory.
+
+## Export registry db
+
+You can export registry bolt db to json file, that can be used as pregen for scenarios (see [docs](./scenarios/run_scenarios.md)).
+To do this use `frostfs-xk6-registry-exporter`, available flags can be seen in help:
+
+```shell
+$ ./bin/frostfs-xk6-registry-exporter -h
+Registry exporter for xk6
+
+Usage:
+registry-exporter [flags]
+
+Examples:
+registry-exporter registry.bolt
+registry-exporter --status created --out out.json registry.bolt
+
+Flags:
+--age int         Object age
+--format string   Output format (default "json")
+-h, --help            help for registry-exporter
+--out string      Path to output file (default "dumped-registry.json")
+--status string   Object status (default "created")
+-v, --version         version for registry-exporter
+```
+
 # License
 
 - [GNU General Public License v3.0](LICENSE)

cmd/xk6-registry-exporter/main.go

@@ -0,0 +1,18 @@
+package main
+
+import (
+	"context"
+	"os"
+	"os/signal"
+	"syscall"
+)
+
+func main() {
+	ctx, _ := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM, syscall.SIGHUP)
+
+	if cmd, err := rootCmd.ExecuteContextC(ctx); err != nil {
+		cmd.PrintErrln("Error:", err.Error())
+		cmd.PrintErrf("Run '%v --help' for usage.\n", cmd.CommandPath())
+		os.Exit(1)
+	}
+}

cmd/xk6-registry-exporter/root.go

@@ -0,0 +1,89 @@
+package main
+
+import (
+	"fmt"
+	"runtime"
+
+	"git.frostfs.info/TrueCloudLab/xk6-frostfs/internal/registry"
+	"git.frostfs.info/TrueCloudLab/xk6-frostfs/internal/version"
+	"github.com/spf13/cobra"
+)
+
+var rootCmd = &cobra.Command{
+	Use:     "registry-exporter",
+	Version: version.Version,
+	Short:   "Registry exporter",
+	Long:    "Registry exporter for xk6",
+	Example: `registry-exporter registry.bolt
+registry-exporter --status created --out out.json registry.bolt`,
+	SilenceErrors: true,
+	SilenceUsage:  true,
+	RunE:          rootCmdRun,
+}
+
+const (
+	outFlag    = "out"
+	formatFlag = "format"
+	statusFlag = "status"
+	ageFlag    = "age"
+)
+
+const (
+	defaultOutPath = "dumped-registry.json"
+
+	jsonFormat = "json"
+
+	createdStatus = "created"
+)
+
+func init() {
+	rootCmd.Flags().String(outFlag, defaultOutPath, "Path to output file")
+	rootCmd.Flags().String(formatFlag, jsonFormat, "Output format")
+	rootCmd.Flags().String(statusFlag, createdStatus, "Object status")
+	rootCmd.Flags().Int(ageFlag, 0, "Object age")
+
+	cobra.AddTemplateFunc("runtimeVersion", runtime.Version)
+	rootCmd.SetVersionTemplate(`FrostFS xk6 Registry Exporter
+{{printf "Version: %s" .Version }}
+GoVersion: {{ runtimeVersion }}
+`)
+}
+
+func rootCmdRun(cmd *cobra.Command, args []string) error {
+	if len(args) != 1 {
+		return fmt.Errorf("expected exacly one non-flag argumet: path to the registry, got: %s", args)
+	}
+
+	format, err := cmd.Flags().GetString(formatFlag)
+	if err != nil {
+		return fmt.Errorf("get '%s' flag: %w", formatFlag, err)
+	}
+	if format != jsonFormat {
+		return fmt.Errorf("unknown format '%s', only '%s' is supported", format, jsonFormat)
+	}
+
+	out, err := cmd.Flags().GetString(outFlag)
+	if err != nil {
+		return fmt.Errorf("get '%s' flag: %w", outFlag, err)
+	}
+
+	status, err := cmd.Flags().GetString(statusFlag)
+	if err != nil {
+		return fmt.Errorf("get '%s' flag: %w", statusFlag, err)
+	}
+
+	age, err := cmd.Flags().GetInt(ageFlag)
+	if err != nil {
+		return fmt.Errorf("get '%s' flag: %w", ageFlag, err)
+	}
+
+	objRegistry := registry.NewObjRegistry(cmd.Context(), args[0])
+	objSelector := registry.NewObjSelector(objRegistry, 0, &registry.ObjFilter{
+		Status: status,
+		Age:    age,
+	})
+	objExporter := registry.NewObjExporter(objSelector)
+
+	cmd.Println("Writing result file:", out)
+	return objExporter.ExportJSONPreGen(out)
+}

go.mod

@@ -18,6 +18,7 @@ require (
 	github.com/nspcc-dev/neo-go v0.101.2
 	github.com/panjf2000/ants/v2 v2.8.0
 	github.com/sirupsen/logrus v1.9.3
+	github.com/spf13/cobra v1.7.0
 	github.com/stretchr/testify v1.8.4
 	go.etcd.io/bbolt v1.3.7
 	go.k6.io/k6 v0.45.0
@@ -34,19 +35,19 @@ require (
 	github.com/antlr4-go/antlr/v4 v4.13.0 // indirect
 	github.com/aws/aws-sdk-go v1.44.296 // indirect
 	github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.4.10 // indirect
-	github.com/aws/aws-sdk-go-v2/credentials v1.13.26 // indirect
+	github.com/aws/aws-sdk-go-v2/credentials v1.13.27 // indirect
-	github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.13.4 // indirect
+	github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.13.5 // indirect
-	github.com/aws/aws-sdk-go-v2/internal/configsources v1.1.34 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/configsources v1.1.35 // indirect
-	github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.4.28 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.4.29 // indirect
-	github.com/aws/aws-sdk-go-v2/internal/ini v1.3.35 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/ini v1.3.36 // indirect
-	github.com/aws/aws-sdk-go-v2/internal/v4a v1.0.26 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/v4a v1.0.27 // indirect
 	github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.9.11 // indirect
-	github.com/aws/aws-sdk-go-v2/service/internal/checksum v1.1.29 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/checksum v1.1.30 // indirect
-	github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.9.28 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.9.29 // indirect
-	github.com/aws/aws-sdk-go-v2/service/internal/s3shared v1.14.3 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/s3shared v1.14.4 // indirect
-	github.com/aws/aws-sdk-go-v2/service/sso v1.12.12 // indirect
+	github.com/aws/aws-sdk-go-v2/service/sso v1.12.13 // indirect
-	github.com/aws/aws-sdk-go-v2/service/ssooidc v1.14.12 // indirect
+	github.com/aws/aws-sdk-go-v2/service/ssooidc v1.14.13 // indirect
-	github.com/aws/aws-sdk-go-v2/service/sts v1.19.2 // indirect
+	github.com/aws/aws-sdk-go-v2/service/sts v1.19.3 // indirect
 	github.com/aws/smithy-go v1.13.5 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/bluele/gcache v0.0.2 // indirect
@@ -67,6 +68,7 @@ require (
 	github.com/hashicorp/golang-lru v0.6.0 // indirect
 	github.com/hashicorp/golang-lru/v2 v2.0.4 // indirect
 	github.com/hashicorp/hcl v1.0.0 // indirect
+	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/jmespath/go-jmespath v0.4.0 // indirect
 	github.com/josharian/intern v1.0.0 // indirect
 	github.com/klauspost/compress v1.16.7 // indirect

help.mk

@@ -0,0 +1,22 @@
+.PHONY: help
+
+# Show this help prompt
+help:
+	@echo '  Usage:'
+	@echo ''
+	@echo '    make <target>'
+	@echo ''
+	@echo '  Targets:'
+	@echo ''
+	@awk '/^#/{ comment = substr($$0,3) } comment && /^[a-zA-Z][a-zA-Z0-9.%_/-]+ ?:/{ print "   ", $$1, comment }' $(MAKEFILE_LIST) | column -t -s ':' | grep -v 'IGNORE' | sort | uniq
+
+# Show help for docker/% IGNORE
+help.docker/%:
+	$(eval TARGETS:=$(notdir all lint) ${BINS})
+	@echo '  Usage:'
+	@echo ''
+	@echo '    make docker/% -- Run `make %` in Golang container'
+	@echo ''
+	@echo '  Supported docker targets:'
+	@echo ''
+	@$(foreach bin, $(TARGETS), echo '   ' $(bin);)

internal/registry/obj_exporter.go

@@ -0,0 +1,82 @@
+package registry
+
+import (
+	"fmt"
+	"os"
+)
+
+type ObjExporter struct {
+	selector *ObjSelector
+}
+
+type PreGenerateInfo struct {
+	Buckets []string  `json:"buckets"`
+	Objects []ObjInfo `json:"objects"`
+	ObjSize string    `json:"obj_size"`
+}
+
+type ObjInfo struct {
+	Bucket string `json:"bucket"`
+	Object string `json:"object"`
+}
+
+func NewObjExporter(selector *ObjSelector) *ObjExporter {
+	return &ObjExporter{selector: selector}
+}
+
+func (o *ObjExporter) ExportJSONPreGen(fileName string) error {
+	f, err := os.Create(fileName)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+
+	// there can be a lot of object, so manually form json
+	if _, err = f.WriteString(`{"objects":[`); err != nil {
+		return err
+	}
+
+	bucketMap := make(map[string]struct{})
+
+	count, err := o.selector.Count()
+	if err != nil {
+		return err
+	}
+
+	var comma string
+	for i := 0; i < count; i++ {
+		info := o.selector.NextObject()
+		if info == nil {
+			break
+		}
+
+		if _, err = f.WriteString(fmt.Sprintf(`%s{"bucket":"%s","object":"%s"}`, comma, info.S3Bucket, info.S3Key)); err != nil {
+			return err
+		}
+
+		if i == 0 {
+			comma = ","
+		}
+
+		bucketMap[info.S3Bucket] = struct{}{}
+	}
+
+	if _, err = f.WriteString(`],"buckets":[`); err != nil {
+		return err
+	}
+
+	i := 0
+	comma = ""
+	for bucket := range bucketMap {
+		if _, err = f.WriteString(fmt.Sprintf(`%s"%s"`, comma, bucket)); err != nil {
+			return err
+		}
+		if i == 0 {
+			comma = ","
+		}
+		i++
+	}
+
+	_, err = f.WriteString(`]}`)
+	return err
+}

internal/registry/registry.go

@@ -94,6 +94,10 @@ func (r *Registry) GetSelector(dbFilePath string, name string, cacheSize int, fi
 	return selector
 }
 
+func (r *Registry) GetExporter(selector *ObjSelector) *ObjExporter {
+	return NewObjExporter(selector)
+}
+
 func parseFilter(filter map[string]string) (*ObjFilter, error) {
 	objFilter := ObjFilter{}
 	objFilter.Status = filter["status"]

internal/version/version.go

@@ -0,0 +1,6 @@
+package version
+
+var (
+	// Version is the xk6 command-line utils version.
+	Version = "dev"
+)