From d79701ea2c8c8bbfbeab03d4aeab69ac6674d04f Mon Sep 17 00:00:00 2001
From: Isaac <git@eartharoid.me>
Date: Tue, 14 Feb 2023 23:22:52 +0000
Subject: [PATCH] perf(docker): decrease image size by 35%

by using multi-stage builds
---
 Dockerfile | 34 +++++++++++++---------------------
 1 file changed, 13 insertions(+), 21 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 6e676e8..46c8cf0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,32 +1,24 @@
 # syntax=docker/dockerfile:1
 
-FROM node:18-alpine
+FROM node:18-alpine AS build
+WORKDIR /build
+COPY package.json pnpm-lock.yaml ./
+COPY --link scripts scripts
+# install python etc so node-gyp works for the optional dependencies
+RUN	apk add --no-cache make gcc g++ python3
+# install pnpm to make dependency installation faster (because it has a lockfile)
+RUN npm install -g pnpm
+# install dependencies, CI=true to skip pre/postinstall scripts
+RUN CI=true pnpm install --prod --frozen-lockfile
+COPY --link . .
 
+FROM node:18-alpine AS final
 ENV NODE_ENV=production \
 	HTTP_HOST=0.0.0.0 \
 	HTTP_PORT=80 \
 	SETTINGS_HOST=127.0.0.1 \
 	SETTINGS_PORT=8169
-
 WORKDIR /usr/bot
-
-COPY package.json pnpm-lock.yaml ./
-
-COPY --link scripts scripts
-
-	# install python etc so node-gyp works for the optional dependencies
-RUN	apk add --no-cache --virtual .build-deps make gcc g++ python3 \
-	# install pnpm to make dependency installation faster (because it has a lockfile)
-	&& npm install -g pnpm \
-	# install dependencies, CI=true to skip pre/postinstall scripts
-	&& CI=true pnpm install --prod --frozen-lockfile \
-	# pnpm isn't needed now
-	&& npm uninstall pnpm --global \
-	# remove node-gyp stuff
-	&& apk del .build-deps
-
-COPY --link . .
-
+COPY --from=build /build ./
 EXPOSE ${HTTP_PORT}
-
 ENTRYPOINT [ "/bin/sh", "/usr/bot/scripts/start.sh" ]
\ No newline at end of file