My .gitlab-ci.yml for Android Build

image: openjdk:8-jdk

variables:
  ANDROID_COMPILE_SDK: "29"
  ANDROID_BUILD_TOOLS: "29.0.2"
  ANDROID_SDK_TOOLS: "29.0.2"
 
before_script:
  - apt -q update
  - apt -q install -y wget tar unzip lib32stdc++6 lib32z1
  - wget -q -O android-sdk.zip https://dl.google.com/android/repository/sdk-tools-linux-4333796.zip
  - unzip -q android-sdk.zip
 
  - echo y | tools/bin/sdkmanager "tools"
  - echo y | tools/bin/sdkmanager "build-tools;29.0.2"
  - echo y | tools/bin/sdkmanager "platform-tools" "platforms;android-29"
  - echo y | tools/bin/sdkmanager "extras;google;m2repository"
  - echo y | tools/bin/sdkmanager "extras;android;m2repository"
 
  - export ANDROID_HOME=$PWD/
  - export PATH=$PATH:$PWD/
  - chmod +x ./gradlew

stages:
  - test
  - build

unitTests:
  stage: test
  script:
    - ./gradlew test
   
build:
  stage: build
  only:
    - master
  script:
    - ./gradlew assembleDebug
  artifacts:
    paths:
    - app/build/outputs/

How to install Microsoft Azure CLI and Add Extension on Windows 10

1.Download azure-cli.msi and install
2.Open Windows PowerShell or Command Shell as administrator
3.Enter "az -h" to list command
4.Enter "az login -u 'username' -p 'password' --allow-no-subscriptions" to login Microsoft Azure
5.Enter "az extension list-available --output table" to list extension
6.Enter "az extension add --name azure-devops" to install target extension
7.Enter "az devops -h" to list command