From 385a6c7e6c831b905119b2251a946ddb87e0fd46 Mon Sep 17 00:00:00 2001
From: itepechi <itepechi+git@itepechi.me>
Date: Thu, 5 Sep 2024 14:51:35 +0900
Subject: [PATCH] Modernise Dockerfile (kind-of)

---
 Dockerfile | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 5c07a95cb..fff69b308 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -23,13 +23,17 @@ WORKDIR ${BUILD_DIR}
 RUN mix local.hex --force \
   && mix local.rebar --force
 
-COPY ./mix.exs ./mix.lock ./
-
-RUN mix deps.get --only ${MIX_ENV}
+RUN \
+  --mount=type=cache,target=./deps/,sharing=locked \
+  --mount=type=bind,source=./mix.exs,target=./mix.exs,readonly \
+  --mount=type=bind,source=./mix.lock,target=./mix.lock,readonly \
+  mix deps.get --only ${MIX_ENV}
 
 COPY . .
 
-RUN mkdir -p "${BUILD_DIR}_build/" \
+RUN \
+  --mount=type=cache,target=./deps/,sharing=locked \
+  mkdir -p "${BUILD_DIR}_build/" \
   && mix release --path "${BUILD_DIR}_build"