fix: copy

Author: andersh

Dockerfile

@@ -1,11 +1,16 @@
 # Build stage
 FROM golang:1.22-alpine AS builder
+# Set necessary environmet variables needed for our image
+ENV GO111MODULE=on \
+    CGO_ENABLED=0 \
+    GOOS=linux
 WORKDIR /app
-COPY go.mod go.sum ./
+COPY go.mod .
+COPY go.sum .
 RUN go mod download
 COPY . .
 ARG VERSION=dev
-RUN CGO_ENABLED=0 GOOS=linux go build -ldflags "-X main.version=${VERSION}" -o web_proxy_cache .
+RUN go build -ldflags "-X main.version=${VERSION}" -o web_proxy_cache .
 
 # Final image
 FROM alpine:3.19