Initial port of phantom-firemap

Signed-off-by: Knut Ahlers <knut@ahlers.me>

Dockerfile

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+FROM debian
+
+ADD https://dl-ssl.google.com/linux/linux_signing_key.pub /tmp/linux_signing_key.pub
+ADD google.list /etc/apt/sources.list.d/google.list'
+
+RUN set -ex \
+ && apt-key add /tmp/linux_signing_key.pub \
+ && apt-get update \
+ && apt-get install -y imagemagick google-chrome-stable
+
+VOLUME ["/data"]
+ENTRYPOINT ["/usr/local/bin/run.sh"]
+
+ADD run.sh /usr/local/bin/run.sh
+
+WORKDIR /data

google.list

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+deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main

run.sh

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+#!/bin/bash -ex
+
+DPI=150
+W=1754 # 150 x 11.69
+H=1241 # 150 x  8.27
+
+ZOOM=$1
+LAT=$2
+LON=$3
+TARGET="$4"
+
+google-chrome-stable --version
+google-chrome-stable --headless --no-sandbox \
+  --hide-scrollbars --disable-gpu --screenshot \
+  --window-size=$W,$H --virtual-time-budget=5000 \
+  "http://openfiremap.org/?zoom=${ZOOM}&lat=${LAT}&lon=${LON}&layers=B0000TF"
+
+ls -lh
+mv screenshot.png /data/${TARGET}.png
+chmod 0644 /data/${TARGET}.png
+
+exec convert /data/${TARGET}.png -compress jpeg -quality 90 \
+  -resize ${W}x${H} -gravity center -extent ${W}x${H} \
+  -units PixelsPerInch -density ${DPI} \
+  -repage ${W}x${H} /data/${TARGET}.pdf