Some docker improvements

Dockerfile

@@ -1,4 +1,13 @@
-FROM node:14.2
+FROM node:14.2 AS build
+
+WORKDIR /app
+
+COPY ./ ./
+
+RUN npm install --only=production
+
+
+FROM node:14.2 as release
 
 RUN \
     apt-get update \
@@ -21,7 +30,11 @@ RUN \
     /root/.cargo/bin/cargo install oxipng
 
 WORKDIR /app
+
+COPY --from=build /app ./
+
 EXPOSE 3000
-CMD [ "npm", "run", "installandstartdev" ]
+
+CMD [ "npm", "start" ]
 
 HEALTHCHECK CMD curl -f http://localhost:3000/health || exit 1

Dockerfile-alpine

@@ -0,0 +1,31 @@
+FROM mhart/alpine-node:15 AS base
+
+RUN apk upgrade --no-cache -U && \
+    apk add --no-cache -t build-dependencies gcc g++ make zlib musl-dev libpng-dev nasm autoconf nss && \
+    apk add --no-cache chromium freetype freetype-dev harfbuzz ca-certificates ttf-freefont
+
+
+FROM base AS build
+
+WORKDIR /app
+
+COPY ./ ./
+
+RUN npm install --only=production
+
+
+FROM base AS release
+
+RUN apk add --no-cache --repository=http://dl-cdn.alpinelinux.org/alpine/edge/community rust cargo curl && \
+    cargo install oxipng && \
+    apk del build-dependencies
+
+WORKDIR /app
+
+COPY --from=build /app ./
+
+EXPOSE 3000
+
+CMD [ "npm", "start" ]
+
+HEALTHCHECK CMD curl -f http://localhost:3000/health || exit 1

docker-compose-alpine.yml

@@ -0,0 +1,14 @@
+version: "3.2"
+
+services:
+
+  osmsm:
+    build:
+      context: .
+      dockerfile: Dockerfile-alpine
+    environment: 
+      PUPPETEER_SKIP_CHROMIUM_DOWNLOAD: 'true'
+      CHROMIUM_PATH: '/usr/bin/chromium-browser'
+    ports:
+      - 3000:3000
+    restart: unless-stopped

docker-compose.yml

@@ -6,6 +6,4 @@ services:
     build: .
     ports:
       - 3000:3000
-    volumes:
-      - .:/app
     restart: unless-stopped

src/lib.js

@@ -35,6 +35,7 @@ class Browser {
   }
   async launch() {
     return puppeteer.launch({
+      ...process.env.CHROMIUM_PATH && { executablePath: process.env.CHROMIUM_PATH },
       args: ["--no-sandbox", "--disable-setuid-sandbox"]
     });
   }