Update Dockerfile

Dockerfile

@@ -1,11 +1,17 @@
-FROM golang:latest
+FROM golang:1.21-alpine AS builder
 
 WORKDIR $GOPATH/override
 
 ADD . $GOPATH/override
 
-RUN go build .
+RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o override
+
+FROM alpine:latest
+
+COPY --from=builder $GOPATH/override /usr/local/bin/override
+
+WORKDIR /app
 
 EXPOSE 8181
 
-ENTRYPOINT  ["./override"]
+ENTRYPOINT ["/usr/local/bin/override"]