From a25cb5a7ef9189ba68195a0efd4a7e85dea15d7f Mon Sep 17 00:00:00 2001
From: Sandro Eiler <sandro.eiler@posteo.de>
Date: Wed, 7 Feb 2024 12:14:51 +0100
Subject: [PATCH] build: reduce podman/docker image size

---
 .dockerignore |  6 ++++++
 Dockerfile    | 16 ++++++++++++++--
 2 files changed, 20 insertions(+), 2 deletions(-)
 create mode 100644 .dockerignore

diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..5d2a7ec
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,6 @@
+.env
+target/
+tests/
+Dockerfile
+scripts/
+migrations/
diff --git a/Dockerfile b/Dockerfile
index 31f71e2..c72c594 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,8 +1,20 @@
-FROM docker.io/rust:1.75.0
+# Builder stage
+FROM rust:1.75.0 AS builder
+
 WORKDIR /app
 RUN apt update && apt install lld clang -y
 COPY . .
 ENV SQLX_OFFLINE true
 RUN cargo build --release
+
+# Runtime stage
+FROM rust:1.75.0-slim AS runtime
+
+WORKDIR /app
+# Copy the compiled binary from the builder environment 
+# to our runtime environment
+COPY --from=builder /app/target/release/learn_axum zero2prod
+# We need the configuration file at runtime!
+COPY configuration configuration
 ENV APP_ENVIRONMENT production
-ENTRYPOINT ["./target/release/learn_axum"]
+ENTRYPOINT ["./zero2prod"]