minimal image seems ok

aux/Dockerfile-release

@@ -1,12 +1,13 @@
-FROM golang as builder
+FROM golang:1.16.6-alpine3.14 as builder
 WORKDIR /app/dtm
 RUN go env -w GO111MODULE=on
 RUN go env -w GOPROXY=https://mirrors.aliyun.com/goproxy/,direct
 EXPOSE 8080
 COPY . .
-RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags "-s -w" app/main.go
+RUN CGO_ENABLED=0 GOOS=linux go build app/main.go
 
-FROM scratch as runner
-COPY --from=builder /app/dtm/main /app/dtm/main
+FROM alpine:3.14 as runner
+COPY --from=builder /app/dtm/main /app/dtm/
 ENV IS_DOCKER=1
-CMD ["/app/dtm/main", "dtmsvr"]
+WORKDIR /app/dtm
+CMD ["/app/dtm/main", "dtmsvr"]

common/types.go

@@ -140,7 +140,7 @@ func init() {
 		"password": os.Getenv("DB_PASSWORD"),
 	}
 	cont := []byte{}
-	for d := MustGetwd(); d != ""; d = filepath.Dir(d) {
+	for d := MustGetwd(); d != "" && d != "/"; d = filepath.Dir(d) {
 		cont1, err := ioutil.ReadFile(d + "/conf.yml")
 		if err != nil {
 			cont1, err = ioutil.ReadFile(d + "/conf.sample.yml")
@@ -156,5 +156,6 @@ func init() {
 		dtmcli.FatalIfError(err)
 	}
 	dtmcli.LogIfFatalf(DtmConfig.DB["driver"] == "" || DtmConfig.DB["user"] == "",
-		"dtm config error: %v. check you env, and conf.yml/conf.sample.yml found in current and parent path: %s", DtmConfig, MustGetwd())
+		"dtm config error: %v. check you env, and conf.yml/conf.sample.yml in current and parent path: %s", DtmConfig, MustGetwd())
+	dtmcli.Logf("after fatalIf")
 }