From 4731b3e7c69db9fb2110ccf6e11eb932b18be21a Mon Sep 17 00:00:00 2001
From: Ryder Casazza <rydercasazza@gmail.com>
Date: Tue, 9 Jun 2026 21:47:51 -0700
Subject: [PATCH] fix: make docker container multi stage to save space

---
 Dockerfile | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 113882e..e88081d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,9 +1,15 @@
-FROM rust:1.96-slim
+FROM rust:1.96-slim-bookworm AS builder
+WORKDIR /app
 
-WORKDIR /config
-COPY Cargo.toml Cargo.lock /config/
-COPY src /config/src
+COPY Cargo.toml Cargo.lock ./
+RUN mkdir src && echo 'fn main() {}' > src/main.rs && cargo build --release && rm -rf src
+
+COPY src ./src
+RUN touch src/main.rs && cargo build --release
 
-RUN cargo install --path .
+FROM gcr.io/distroless/cc-debian12
+COPY --from=builder /app/target/release/drainarr /usr/local/bin/drainarr
 
-CMD ["drainarr"]
+# drainarr reads ./config.toml from its working directory.
+WORKDIR /config
+ENTRYPOINT ["/usr/local/bin/drainarr"]