You may have a need of emulator in order to run AndroidTes with CI or other. To meet the needs, I start up an Android emulator with docker.

preparation:

a. make sure you have install docker,

run the command:

docker run -d \
  --network=host \
  -e ADBKEY="$(cat ~/.android/adbkey)" \
  --device /dev/kvm \
  --cpus="4" \
  --publish 8554:8554/tcp \
  --publish 5555:5555/tcp  \
  --name android-emulator-30 \
  us-docker.pkg.dev/android-emulator-268719/images/30-google-x64:30.1.2
  adb connect localhost:5555
  adb wait-for-device

and then, enjoy it.

In addition

a. How stop and start?

docker container stop android-emulator-30
docker container start android-emulator-30

b. how to oversee the device's screen?

as soon as your emulator started,you can use scrcpy to oversee it in terminal.

scrcpy --max-fps 15

bugs

If you encouter problem: adb: error: stat failed when trying to push to /data/local/tmp/scrcpy-server.jar: Permission denied or not a directory, you can try steps below to fix them.

a. run command adb reboot b. try to run scrcpy --max-fps 15 when system just started. You may need to run it many times.

BruceWind/start_android_emulator_with_docker.md

In addition