Android Emulator as a system service (systemd)

android-emulator-as-system-service.txt

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/etc/systemd/system/android-emulator.service:
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[Unit]
Description=Android Emulator
After=network.target

[Service]
Type=simple
Environment=SHELL=/bin/bash
WorkingDirectory=/opt/android-sdk/emulator/
ExecStart=/home/ubuntu/start-android-emulator.sh
ExecStartPost=/home/ubuntu/myapp-start.sh
ExecStop=/home/ubuntu/myapp-stop.sh
User=ubuntu
TimeoutStartSec=3600
TimeoutStopSec=60
Restart=on-failure
LimitNOFILE=65536

[Install]
WantedBy=multi-user.target


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/home/ubuntu/start-android-emulator.sh:
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#!/bin/bash
echo "Starting Android Emulator on port 5554"
/opt/android-sdk/emulator/emulator -ports 5554,5555 -avd APKServer -no-window -no-audio -gpu swiftshader_indirect -show-kernel

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/home/ubuntu/myapp-start.sh:
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#!/bin/bash
# wait for emulator boot to finish
echo "Waiting for emulator to finish loading..."
/opt/android-sdk/platform-tools/adb wait-for-device shell 'while [[ -z $(getprop sys.boot_completed) ]] ; do sleep 1; done'

# start your application
echo "Starting My App"
/opt/android-sdk/platform-tools/adb shell am start -n com.package.name/com.package.name.ActivityName

# forward ports (required in case MyApp is a localhost server)
port="12345"
echo "Forwarding ports"
/opt/android-sdk/platform-tools/adb forward tcp:$port tcp:$port

echo "My App is ready and listening on port $port"


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/home/ubuntu/myapp-stop.sh:
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#!/bin/bash
SERVICE="/opt/android-sdk/emulator/emulator"

if pgrep -f $SERVICE >/dev/null 2>&1 ; then
    echo "Android Emulator is running"
else
   echo "My App is already stopped."
   exit 0
fi
echo "Sending kill command to the Android Emulator"
/opt/android-sdk/platform-tools/adb -s emulator-5554 emu kill

echo  "My App is now stopped."