update Dockerfile to deal with Jessie backports issue as outlined in https://unix.stackexchange.com/questions/508724/failed-to-fetch-jessie-backports-repository. Also adding a docker-compose.yml for development.

Dockerfile

 FROM node:7
 # FROM ubuntu:16.04
 
-RUN echo 'deb http://ftp.debian.org/debian jessie-backports main' >> /etc/apt/sources.list
+RUN echo "deb [check-valid-until=no] http://cdn-fastly.deb.debian.org/debian jessie main" > /etc/apt/sources.list.d/jessie.list
+RUN echo "deb [check-valid-until=no] http://archive.debian.org/debian jessie-backports main" > /etc/apt/sources.list.d/jessie-backports.list
+RUN sed -i '/deb http:\/\/deb.debian.org\/debian jessie-updates main/d' /etc/apt/sources.list
+RUN apt-get -o Acquire::Check-Valid-Until=false update
 
 RUN mkdir -p /usr/src/app
 WORKDIR /usr/src/app
 COPY package.json /usr/src/app/
-RUN apt-get update -y && apt-get upgrade -y && \
-    apt-get install -y nodejs npm libcairo2-dev libjpeg62-turbo-dev libpango1.0-dev libgif-dev libpng-dev build-essential g++ ffmpeg
+RUN apt-get -o Acquire::Check-Valid-Until=false update -y && apt-get upgrade -y && \
+  apt-get install -y nodejs npm libcairo2-dev libjpeg62-turbo-dev libpango1.0-dev libgif-dev libpng-dev build-essential g++ ffmpeg
 COPY package.json* yarn.lock* .npmrc* /usr/src/app/
 RUN npm install --production
 

docker-compose.yml

+version: "3"
+services:
+  web:
+    build: "."
+    ports:
+      - "80:8888"
+    volumes:
+      - "./settings:/usr/src/app/settings/"
+      - "./lib:/usr/src/app/lib/"
+      - "./server:/usr/src/app/server/"