From d2ed54c377ba4455862e823193e402e99dfc088f Mon Sep 17 00:00:00 2001
From: Keenan Tims <ktims@gotroot.ca>
Date: Sun, 9 Mar 2025 01:00:35 -0800
Subject: [PATCH] docker: don't keep source or toolchain in container image

---
 Dockerfile | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index f3d8e18..c258317 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,8 +1,12 @@
-FROM rust:1.85
+FROM rust:1 AS builder
 
 WORKDIR /usr/src/mqtt-exporter
-COPY . .
+COPY src/ ./src
+COPY Cargo.* .
 
-RUN cargo install --path .
+RUN cargo install --path . --root /app
+
+FROM debian:bookworm-slim
+COPY --from=builder /app/bin/mqtt-exporter /usr/local/bin/mqtt-exporter
 
 CMD ["mqtt-exporter"]
\ No newline at end of file