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Dockerfile

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+# Multi-stage build yang lebih optimal
+FROM golang:1.22-alpine AS build
+
+# Install build dependencies
+RUN apk add --no-cache git ca-certificates tzdata
+
+WORKDIR /build
+
+# Cache go mod dependencies
+COPY go.mod go.sum ./
+RUN go mod download && go mod verify
+
+# Copy source code
+COPY . .
+
+# Build dengan optimasi
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 \
+    go build -a -installsuffix cgo \
+    -ldflags='-w -s -extldflags "-static"' \
+    -o main cmd/api/main.go
+
+# Final stage - distroless untuk keamanan
+FROM gcr.io/distroless/static:nonroot
+
+# Copy timezone data
+COPY --from=build /usr/share/zoneinfo /usr/share/zoneinfo
+
+# Copy binary
+COPY --from=build /build/main /app/main
+
+# Use non-root user
+USER nonroot:nonroot
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
+  CMD ["/app/main", "-health"] || exit 1
+
+EXPOSE 8080
+
+ENTRYPOINT ["/app/main"]