add docker image with instructions on how to use

.gitignore

@@ -1,2 +1,3 @@
 node_modules
 *~
+*.log

Dockerfile

@@ -0,0 +1,23 @@
+FROM node:14.2-alpine
+MAINTAINER Jørgen Sverre Lien Sellæg <jorgen@guut.org>
+
+ENV PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=true \
+  PUPPETEER_EXECUTABLE_PATH=/usr/bin/chromium-browser
+
+RUN apk add --no-cache \
+  chromium \
+  bash \
+  imagemagick \
+  graphicsmagick \
+  nss \
+  freetype \
+  freetype-dev \
+  harfbuzz \
+  ca-certificates \
+  ttf-freefont
+
+WORKDIR "/app"
+USER node
+COPY --chown=node:node ./scrape.sh /scrape.sh
+
+CMD ["/scrape.sh"]

README.md

@@ -1,4 +1,20 @@
-# Kultar - event calendar
+# Facebook event scraper
+
+A simple facebook event scraper written with puppeteer
 
 ## Introduction
-This is an simple application that should scrape facebook events from kulturvarsel page on facebook
+
+Please note that terms and condition apply from facebook and this should only be
+used if written consent is provided by facebook. However it will work without.
+
+## Usage
+
+### Alpine docker image is provided
+
+```sh
+docker build --tag facebook-scraper .
+docker run \
+    -v "$(pwd):/app" \
+    --cap-add SYS_ADMIN \
+    facebook-scraper
+```

scrape.sh

@@ -0,0 +1,7 @@
+#!/bin/sh
+
+if ! [ -d node_modules ]; then
+  yarn
+fi
+
+exec node scrape.js