tools/docker: Add Docker image support for devlib

Introduce a Dockerfile in order to create Docker image for devlib and
``run_tests.sh`` script to test Android, Linux, LocalLinux, and QEMU
targets on the Docker image.

The Dockerfile forks from ``Ubuntu-22.04``, installs required system
packages, checks out ``master`` branch of devlib, installs devlib,
creates Android virtual devices via ``tools/android/install_base.sh``,
and QEMU images for aarch64 and x86_84 architectures.

Note that Android command line tools version, buildroot and devlib
branches can be customized via environment variables.

Signed-off-by: Metin Kaya <metin.kaya@arm.com>

tools/docker/run_tests.sh

@@ -0,0 +1,41 @@
+#!/usr/bin/env bash
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+# Copyright (C) 2024, ARM Limited and contributors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# Prepare the groundwork and run tests/test_target.py on the Docker image.
+#
+
+set -eu
+
+ANDROID_HOME="/devlib/tools/android/android-sdk-linux"
+export ANDROID_HOME
+export ANDROID_USER_HOME="${ANDROID_HOME}/.android"
+export ANDROID_EMULATOR_HOME="${ANDROID_HOME}/.android"
+export PATH=${ANDROID_HOME}/platform-tools/:${PATH}
+
+EMULATOR="${ANDROID_HOME}/emulator/emulator"
+EMULATOR_ARGS="-no-window -no-snapshot -memory 2048"
+${EMULATOR} -avd devlib-p6-12 ${EMULATOR_ARGS} &
+${EMULATOR} -avd devlib-p6-14 ${EMULATOR_ARGS} &
+${EMULATOR} -avd devlib-chromeos ${EMULATOR_ARGS} &
+
+echo "Waiting 30 seconds for Android virtual devices to finish boot up..."
+sleep 30
+
+cd /devlib
+cp -f tools/docker/target_configs.yaml tests/
+python3 -m pytest --log-cli-level DEBUG ./tests/test_target.py