localfs first skeleton

Makefile

@@ -1,13 +1,22 @@
 GO111MODULE := on
 CGO_ENABLED := 1
-LINKMODE := -extldflags '-static -s -w'
+EXTLDFLAGS := -extldflags '-static -s -w'
 DOCKER_TAG := $(or ${GITHUB_TAG_NAME}, latest)
 BACKUP_PROVIDER := $(or ${BACKUP_PROVIDER},local)
+SHA := $(shell git rev-parse --short=8 HEAD)
+GITVERSION := $(shell git describe --long --all)
+BUILDDATE := $(shell date -Iseconds)
+VERSION := $(or ${VERSION},devel)
 
 .PHONY: all
 all:
 	go mod tidy
-	go build -ldflags "$(LINKMODE)" -tags 'osusergo netgo static_build' -o bin/backup-restore-sidecar github.com/metal-stack/backup-restore-sidecar/cmd
+	go build -ldflags "-X 'github.com/metal-stack/v.Version=$(VERSION)' \
+                           -X 'github.com/metal-stack/v.Revision=$(GITVERSION)' \
+                           -X 'github.com/metal-stack/v.GitSHA1=$(SHA)' \
+                           -X 'github.com/metal-stack/v.BuildDate=$(BUILDDATE)' \
+                           $(EXTLDFLAGS)" \
+                           -tags 'osusergo netgo static_build' -o bin/backup-restore-sidecar github.com/metal-stack/backup-restore-sidecar/cmd
 	strip bin/backup-restore-sidecar
 
 .PHONY: proto

cmd/internal/database/localfs/localfs.go

@@ -0,0 +1,35 @@
+package localfs
+
+import "go.uber.org/zap"
+
+type LocalFS struct {
+	datadir string
+	log     *zap.SugaredLogger
+}
+
+func New(log *zap.SugaredLogger, datadir string) *LocalFS {
+	return &LocalFS{
+		datadir: datadir,
+		log:     log,
+	}
+}
+
+func (l *LocalFS) Check() (bool, error) {
+	//ToDo: check if Datadir empty -> true
+	return true, nil
+}
+
+func (l *LocalFS) Backup() error {
+	//ToDo: put Datadir into compressed archive
+	return nil
+}
+
+func (l *LocalFS) Recover() error {
+	//ToDo: decompress archive into Datadir
+	return nil
+}
+
+func (l *LocalFS) Probe() error {
+	//Nothing to do, not a real Database
+	return nil
+}

cmd/main.go

@@ -7,6 +7,8 @@ import (
 	"os"
 	"strings"
 
+	"github.com/metal-stack/backup-restore-sidecar/cmd/internal/database/localfs"
+
 	"github.com/metal-stack/backup-restore-sidecar/cmd/internal/backup"
 	"github.com/metal-stack/backup-restore-sidecar/cmd/internal/backup/providers"
 	"github.com/metal-stack/backup-restore-sidecar/cmd/internal/backup/providers/gcp"
@@ -188,7 +190,7 @@ func init() {
 	rootCmd.AddCommand(startCmd, waitCmd, restoreCmd)
 
 	rootCmd.PersistentFlags().StringP(logLevelFlg, "", "info", "sets the application log level")
-	rootCmd.PersistentFlags().StringP(databaseFlg, "", "", "the kind of the database [postgres|rethinkdb]")
+	rootCmd.PersistentFlags().StringP(databaseFlg, "", "", "the kind of the database [postgres|rethinkdb|localfs]")
 	rootCmd.PersistentFlags().StringP(databaseDatadirFlg, "", "", "the directory where the database stores its data in")
 
 	err := viper.BindPFlags(rootCmd.PersistentFlags())
@@ -323,6 +325,12 @@ func initDatabase() error {
 			viper.GetString(rethinkDBURLFlg),
 			viper.GetString(rethinkDBPasswordFileFlg),
 		)
+	case "localfs":
+		db = localfs.New(
+			logger.Named("localfs"),
+			datadir,
+		)
+
 	default:
 		return fmt.Errorf("unsupported database type: %s", dbString)
 	}