From 8c4a434afd3e9c222f36ae5b33a785af8d6aa8fa Mon Sep 17 00:00:00 2001
From: Jimmy <git@jimmy.nz>
Date: Mon, 20 Sep 2021 21:40:53 +1200
Subject: [PATCH] Use multi stage build

---
 Dockerfile | 19 ++++++++++++++++---
 build.sh   |  4 ----
 2 files changed, 16 insertions(+), 7 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 004ad9c..e8ea85c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,16 +1,29 @@
+FROM golang AS builder
+
+WORKDIR /app
+
+COPY ./src /app/src
+COPY ./go.mod /app
+COPY ./go.sum /app
+
+RUN go build -o /app/main /app/src/main.go 
+RUN go build -o /app/cmd /app/src/cmd.go 
+
 ARG JAVA_VERSION=16
-FROM openjdk:${JAVA_VERSION}
+FROM openjdk:16
 
 ENV MIN_MEM=512M
 ENV MAX_MEM=1G
 ENV STOP="stop"
 ENV JAR=server.jar
 
-COPY ./bin/main /main
-COPY ./bin/cmd /usr/local/bin/cmd
+COPY --from=builder /app/main /main
+COPY --from=builder /app/cmd /usr/local/bin/cmd
 
 EXPOSE 25565
 
 VOLUME [ "/server" ]
 
+WORKDIR /server
+
 ENTRYPOINT [ "/main" ]
diff --git a/build.sh b/build.sh
index 5268abd..a8d7de8 100755
--- a/build.sh
+++ b/build.sh
@@ -1,6 +1,2 @@
 #!/bin/sh
-
-mkdir -p bin && \
-go build -o bin/main src/main.go && \
-go build -o bin/cmd src/cmd.go && \
 sudo docker build -t magmise/minecraft:latest .