from dockerfile to containerfile

Containerfile

@@ -0,0 +1,29 @@
+# Stage 1: Build
+FROM docker.io/library/golang:1.23-alpine AS builder
+
+WORKDIR /build
+
+RUN apk add --no-cache gcc musl-dev
+
+COPY go.mod go.sum ./
+RUN go mod download
+
+COPY . .
+
+RUN CGO_ENABLED=1 GOOS=linux go build -a -installsuffix cgo \
+    -o admin-panel ./cmd/admin-panel
+
+# Stage 2: Runtime
+FROM docker.io/library/alpine:latest
+
+RUN apk add --no-cache ca-certificates
+
+WORKDIR /app
+
+COPY --from=builder /build/admin-panel .
+COPY .env .env
+COPY web ./web
+
+EXPOSE 5001
+
+CMD ["./admin-panel"]