add android headless simulator (#60)

cirque/resources/Dockerfile.android_headless_emulator

@@ -0,0 +1,43 @@
+FROM ubuntu:18.04
+
+ARG TZ
+ENV TIMEZONE=${TZ:-America/Los_Angeles}
+USER root
+
+RUN apt-get update && apt-get install -y \
+    	dnsmasq \
+    	iproute2 \
+	net-tools \
+	iputils-ping \
+    	openjdk-8-jdk \
+	tzdata \
+	wget \
+	unzip && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/* && \
+    ln -snf /usr/share/zoneinfo/$TIMEZONE /etc/localtime && echo $TIMEZONE > /etc/timezone
+
+RUN wget 'https://dl.google.com/android/repository/sdk-tools-linux-4333796.zip' -P /tmp && \
+    unzip -d /opt/android /tmp/sdk-tools-linux-4333796.zip && \
+    rm -v /tmp/sdk-tools-linux-4333796.zip && \
+    yes Y | /opt/android/tools/bin/sdkmanager --install \
+    	"platform-tools" \
+	"system-images;android-30;google_apis;x86" \
+	"platforms;android-30" \
+	"emulator" && \
+    yes Y | /opt/android/tools/bin/sdkmanager --licenses && \
+    echo "no" | /opt/android/tools/bin/avdmanager --verbose create avd --force \
+    	--name "emulator" \
+	--device "pixel" \
+	--package "system-images;android-30;google_apis;x86" \
+	--tag "google_apis" \
+	--abi "x86"
+
+COPY android_headless_init.sh /
+
+ENV ANDROID_HOME=/opt/android
+ENV PATH=$ANDROID_HOME/emulator:$ANDROID_HOME/tools/bin:$ANDROID_HOME/platform-tools:$PATH
+ENV LD_LIBRARY_PATH=$ANDROID_HOME/emulator/lib64:$ANDROID_HOME/emulator/lib64/qt/lib:$LD_LIBRARY_PATH
+ENV QT_DEBUG_PLUGINS=1
+
+ENTRYPOINT ["/android_headless_init.sh"]

cirque/resources/android_headless_init.sh

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+#!/bin/bash
+
+ip_addr=`ifconfig eth0 | awk '/inet / {print $2}'`
+base_ipaddr=`echo $ip_addr | cut -d"." -f1-3`
+network=$base_ipaddr.0
+
+ip tuntap add dev tap0 mode tap user $(whoami)
+ip link add br0 type bridge
+ip link set tap0 master br0
+ip link set eth0 master br0
+ip addr flush dev eth0
+ip link set tap0 up
+ip link set br0 up
+ifconfig eth0 0.0.0.0 promisc
+ifconfig tap0 0.0.0.0 promisc
+ip addr add $ip_addr/24 dev br0
+route add default gw $base_ipaddr.1 br0
+sysctl -w net.ipv4.ip_forward=1
+
+cat <<EOT >> /etc/dnsmasq.conf
+interface=br0
+bind-interfaces
+dhcp-option=3,$base_ipaddr.1
+dhcp-option=6,8.8.8.8,8.8.4.4
+dhcp-range=$base_ipaddr.5,$base_ipaddr.9,255.255.255.0,12h
+no-hosts
+EOT
+
+/etc/init.d/dnsmasq restart
+
+emulator -avd emulator -no-boot-anim -no-audio -net-tap tap0 -no-accel -no-window
+
+sleep infinity