update docker file for product catalog

Author: dineshg13

src/productcatalogservice/Dockerfile

@@ -3,24 +3,31 @@
 
 FROM registry.ddbuild.io/images/mirror/golang:1.22-alpine AS builder
 
+
 WORKDIR /usr/src/app/
 
 RUN apk update \
     && apk add --no-cache make protobuf-dev
 
-RUN --mount=type=cache,target=/go/pkg/mod/ \
-    --mount=type=bind,source=./src/productcatalogservice/go.sum,target=go.sum \
-    --mount=type=bind,source=./src/productcatalogservice/go.mod,target=go.mod \
-    --mount=type=bind,source=./src/productcatalogservice/tools.go,target=tools.go \
-    go mod download \
+COPY ./src/productcatalogservice/go.sum tools/go.sum
+COPY ./src/productcatalogservice/go.mod tools/go.mod
+COPY ./src/productcatalogservice/tools.go tools/tools.go
+
+WORKDIR /usr/src/app/tools
+
+RUN go mod download \
     && go list -e -f '{{range .Imports}}{{.}} {{end}}' tools.go | CGO_ENABLED=0 xargs go install -mod=readonly
 
-RUN --mount=type=cache,target=/go/pkg/mod/ \
-    --mount=type=cache,target=/root/.cache/go-build \
-    --mount=type=bind,rw,source=./src/productcatalogservice,target=. \
-    --mount=type=bind,rw,source=./pb,target=./pb \
-    protoc -I ./pb ./pb/demo.proto --go_out=./ --go-grpc_out=./ \
-    && go build -ldflags "-s -w" -o /go/bin/productcatalogservice/ ./
+WORKDIR /usr/src/app/
+
+COPY ./src/productcatalogservice ./src/productcatalogservice
+COPY ./pb ./pb
+
+RUN protoc -I ./pb ./pb/demo.proto --go_out=./src/productcatalogservice --go-grpc_out=./src/productcatalogservice 
+
+WORKDIR /usr/src/app/src/productcatalogservice
+RUN go build -ldflags "-s -w" -o /go/bin/productcatalogservice/ ./
+
 
 
 FROM registry.ddbuild.io/images/mirror/alpine:latest AS release