initial commit

Dockerfile

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+# ---- Build Stage ----
+FROM golang:1.26 AS builder
+
+WORKDIR /app
+
+# ---- Step 1: Copy go.mod/go.sum for caching ----
+# Copy only the minimal files first for layer caching
+COPY libshared/go.mod libshared/go.sum ./libshared/
+COPY account-manager/go.mod account-manager/go.sum ./account-manager/
+
+# ---- Step 2: Download dependencies ----
+RUN go -C libshared mod download
+RUN go -C account-manager mod download
+
+# ---- Step 3: Copy full source code ----
+COPY libshared ./libshared
+COPY account-manager ./account-manager
+
+# ---- Step 4: Create Go workspace inside container ----
+RUN go work init ./account-manager ./libshared
+
+## Optional: verify workspace
+#RUN go work list
+
+# ---- Step 5: Build binary ----
+WORKDIR /app/account-manager
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o server
+
+# ---- Runtime Stage ----
+FROM gcr.io/distroless/base-debian12
+
+WORKDIR /app
+COPY --from=builder /app/account-manager/server .
+
+EXPOSE 8080
+USER nonroot:nonroot
+ENTRYPOINT ["/app/server"]