From 354a5832e483db2ffd8d67a47e78854d603e583d Mon Sep 17 00:00:00 2001
From: Brandon Fryslie <530235+brandon-fryslie@users.noreply.github.com>
Date: Sun, 15 Mar 2020 16:40:56 -0600
Subject: [PATCH] Adjust Dockerfile to improve caching

---
 Dockerfile | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 02fcf01a5..091ed9f75 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,14 +1,19 @@
 FROM node:8
 
+ENV NODE_ENV=docker
+
 # Create app directory
 WORKDIR /usr/src/app
 
-# Bundle app source
+# Copy package.json into the image, then run yarn install
+# This improves caching so we don't have to download the dependencies every time the code changes
+COPY package.json ./
+# --ignore-scripts tells yarn not to run postbuild.  We run it explicitly later
+RUN yarn install --ignore-scripts
+
+# Bundle app source and build application
 COPY . .
-
-ENV NODE_ENV=docker
-
-RUN yarn
+RUN yarn build
 
 EXPOSE 8000
-CMD [ "yarn", "start" ]
\ No newline at end of file
+CMD [ "yarn", "start" ]