update dockerfile and cfg set to stage base by default

Dockerfile

@@ -5,5 +5,6 @@ RUN go build -o app
 
 FROM alpine:latest 
 WORKDIR /main
-COPY --from=builder /main /main/
+COPY --from=builder /main/app /main/
+COPY --from=builder /main/cfg.yml /main/
 ENTRYPOINT ["/main/app"]

cfg.yml

@@ -2,4 +2,4 @@ token: 7757765456:AAFpFXhbi9XCfgRt7P3OT3F_jrBBplubWZA # delete here
 user_name: "root"
 password: "12641264"
 host_name: "217.12.40.237"
-db_name: "test"
+db_name: "stage"