Optimize docker build

.dockerignore

@@ -4,3 +4,4 @@
 # Allow files and directories
 !*.js
 !*.json
+!*.ts

Dockerfile

@@ -1,18 +1,49 @@
-FROM keymetrics/pm2:latest-stretch
-# Create app directory
+########
+# BASE
+########
+FROM keymetrics/pm2:12-alpine as base
 WORKDIR /usr/src/markbot
 
-# Install app dependencies
+COPY package*.json ./
+# Install build tools for erlpack, then install prod deps only, then remove build tools
+RUN apk add --no-cache make gcc g++ python && \
+    npm ci --only=production && \
+    apk del make gcc g++ python
+
+########
+# BUILD
+########
+FROM base as build
+
+# Copy all *.json, *.js, *.ts
+COPY . .
+# Prod deps already installed, add dev deps
+RUN npm i
+
+RUN npm run build
+
+########
+# DEPLOY
+########
+FROM keymetrics/pm2:12-alpine as deploy
+WORKDIR /usr/src/markbot
+
+ENV NPM_CONFIG_LOGLEVEL warn
+
+# Steal node_modules from base image
+COPY --from=base /usr/src/markbot/node_modules ./node_modules/
+
+# Steal compiled code from build image
+COPY --from=build /usr/src/markbot/dist ./
+
+# Copy package.json for version number
 COPY package*.json ./
 
-# If you are building your code for production
-ENV NPM_CONFIG_LOGLEVEL warn
-RUN npm ci --only=production
+# Copy PM2 config
+COPY ecosystem.config.js .
 
-# Bundle app source
-COPY . .
 RUN mkdir config
 
-RUN ls -al
+# RUN ls -al
 
 CMD [ "pm2-runtime", "start", "ecosystem.config.js" ]

package-lock.json

@@ -483,11 +483,12 @@
       "dev": true
     },
     "erlpack": {
-      "version": "github:discordapp/erlpack#674ebfd3439ba4b7ce616709821d27630f7cdc61",
-      "from": "github:discordapp/erlpack",
+      "version": "0.1.3",
+      "resolved": "https://registry.npmjs.org/erlpack/-/erlpack-0.1.3.tgz",
+      "integrity": "sha512-QeG9v8CVsY/a/IoQi8zjn23aYKcziOihAxwjUl3tI/KB4R1FjTtctDAAMovgtpC16S+WiOauers2oWwIOQtKBQ==",
       "requires": {
-        "bindings": "^1.2.1",
-        "nan": "^2.1.0"
+        "bindings": "^1.5.0",
+        "nan": "^2.14.0"
       }
     },
     "error-ex": {
@@ -1284,9 +1285,9 @@
       "dev": true
     },
     "nan": {
-      "version": "2.8.0",
-      "resolved": "https://registry.npmjs.org/nan/-/nan-2.8.0.tgz",
-      "integrity": "sha1-7XFfP+neArV6XmJS2QqWZ14fCFo="
+      "version": "2.14.0",
+      "resolved": "https://registry.npmjs.org/nan/-/nan-2.14.0.tgz",
+      "integrity": "sha512-INOFj37C7k3AfaNTtX8RhsTw7qRy7eLET14cROi9+5HAVbbHuIWUHEauBv5qT4Av2tWasiTY1Jw6puUNqRJXQg=="
     },
     "natural-compare": {
       "version": "1.4.0",

package.json

@@ -27,7 +27,7 @@
   "dependencies": {
     "bufferutil": "^4.0.1",
     "discord.js": "^11.5.1",
-    "erlpack": "github:discordapp/erlpack",
+    "erlpack": "^0.1.3",
     "markov-strings": "^2.1.0",
     "node-schedule": "^1.3.2",
     "source-map-support": "^0.5.16",