Automating Android Workflows with Github Actions

Companion slides for my talk about Android CI/CD powered by Github Actions, including platform models, CI topologies and unique challenges we can find when automating Android pipelines withing this platform.

Delivered in the following events :

- GDG Curitiba Android Meetup #08 (online) - August / 2020
- TDC São Paulo Trilha Android (online) - August/2020
- DevCommunity Summit (online) - October/2021
- Droidcon Berlin - October/2021

Transcript

1. AUTOMATING YOUR
   ANDROID WORKFLOWS
   Ubiratan Soares
   October / 2021
   GITHUB ACTIONS
   

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2. CRASHING
   COURSE !!!
   

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3. Step
   Step
   Step
   Job
   . . .
   Workflow
   Runner
   Event
   

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4. Job
   . . .
   Workflow
   Push
   Pull Request
   Release
   REST API
   Tag
   .
   .
   .
   Job
   . . .
   Job
   . . .
   

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5. Pull Request
   Build
   . . .
   Internal Library
   • 1 Event
   • 1 Job triggered
   

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6. Tag
   Build
   . . .
   Internal Library
   Publish
   . . .
   • 1 Event
   • 1 Job triggered
   • 1 Job chained
   

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7. /
   .github/workflows
   compliance-checks.yaml
   ci.yaml
   etc.yaml
   

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8. What are your
   thoughts about YAML?
   Software Engineer
   

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9. Job
   Runner
   

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10. Step
    Job
    Runner Shell Script Command
    

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11. Step
    Job
    Runner
    Shell Script Command
    Step Composite Action (Bash)
    

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12. Step
    Job
    Runner
    Shell Script Command
    Step Composite Action (Bash)
    Step Nested Composite Action
    

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13. Step
    Job
    Runner
    Shell Script Command
    Step Composite Action (Bash)
    Step Nested Composite Action
    Step Code-defined
    

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14. Action Type | Runner Ubuntu MacOS Windows
    JS YES YES YES
    Docker YES NO NO
    Composite/Simple YES YES YES
    Composite/Nested YES 👀 👀
    Step
    Job
    Step
    Runner
    . . .
    by
    

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19. name: Android CI
    on:
    pull_request:
    push:
    branches:
    - 'master'
    - '4.**'
    - '5.**'
    jobs:
    build:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v2
    - name: Set up JDK 11
    uses: actions/setup-java@v1
    with:
    java-version: 11
    - name: Validate Gradle Wrapper
    uses: gradle/wrapper-validation-action@v1
    - name: Remove Android 31 (S)
    run: $ANDROID_HOME/tools/bin/sdkmanager --uninstall "platforms;android-31"
    - name: Build with Gradle
    run: ./gradlew qa
    - name: Archive reports for failed build
    if: ${{ failure() }}
    uses: actions/upload-artifact@v2
    with:
    name: reports
    path: '*/build/reports' github.com/signalapp/Signal-Android/blob/master/.github/workflows/android.yml
    

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20. name: Android CI
    on:
    pull_request:
    push:
    branches:
    - 'master'
    - '4.**'
    - '5.**'
    jobs:
    build:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v2
    - name: Set up JDK 11
    uses: actions/setup-java@v1
    with:
    java-version: 11 github.com/signalapp/Signal-Android/blob/master/.github/workflows/android.yml
    

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21. name: Android CI
    on:
    pull_request:
    push:
    branches:
    - 'master'
    - '4.**'
    - '5.**'
    jobs:
    build:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v2
    - name: Set up JDK 11
    uses: actions/setup-java@v1
    with:
    java-version: 11 github.com/signalapp/Signal-Android/blob/master/.github/workflows/android.yml
    

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22. name: Android CI
    on:
    pull_request:
    push:
    branches:
    - 'master'
    - '4.**'
    - '5.**'
    jobs:
    build:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v2
    - name: Set up JDK 11
    uses: actions/setup-java@v1
    with:
    java-version: 11 github.com/signalapp/Signal-Android/blob/master/.github/workflows/android.yml
    

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23. name: Android CI
    on:
    pull_request:
    push:
    branches:
    - 'master'
    - '4.**'
    - '5.**'
    jobs:
    build:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v2
    - name: Set up JDK 11
    uses: actions/setup-java@v1
    with:
    java-version: 11 signalapp/Signal-Android/blob/master/.github/workflows/android.yml
    

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24. steps:
    - uses: actions/checkout@v2
    - name: Set up JDK 11
    uses: actions/setup-java@v1
    with:
    java-version: 11
    - name: Validate Gradle Wrapper
    uses: gradle/wrapper-validation-action@v1
    - name: Remove Android 31 (S)
    run: $ANDROID_HOME/tools/bin/sdkmanager --uninstall "platforms;android-31"
    - name: Build with Gradle
    run: ./gradlew qa
    - name: Archive reports for failed build
    if: ${{ failure() }}
    uses: actions/upload-artifact@v2
    with:
    name: reports
    path: '*/build/reports'
    github.com/signalapp/Signal-Android/blob/master/.github/workflows/android.yml
    

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25. steps:
    - uses: actions/checkout@v2
    - name: Set up JDK 11
    uses: actions/setup-java@v1
    with:
    java-version: 11
    - name: Validate Gradle Wrapper
    uses: gradle/wrapper-validation-action@v1
    - name: Remove Android 31 (S)
    run: $ANDROID_HOME/tools/bin/sdkmanager --uninstall "platforms;android-31"
    - name: Build with Gradle
    run: ./gradlew qa
    - name: Archive reports for failed build
    if: ${{ failure() }}
    uses: actions/upload-artifact@v2
    with:
    name: reports
    path: '*/build/reports'
    github.com/signalapp/Signal-Android/blob/master/.github/workflows/android.yml
    

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26. steps:
    - uses: actions/checkout@v2
    - name: Set up JDK 11
    uses: actions/setup-java@v1
    with:
    java-version: 11
    - name: Validate Gradle Wrapper
    uses: gradle/wrapper-validation-action@v1
    - name: Remove Android 31 (S)
    run: $ANDROID_HOME/tools/bin/sdkmanager --uninstall "platforms;android-31"
    - name: Build with Gradle
    run: ./gradlew qa
    - name: Archive reports for failed build
    if: ${{ failure() }}
    uses: actions/upload-artifact@v2
    with:
    name: reports
    path: '*/build/reports'
    github.com/signalapp/Signal-Android/blob/master/.github/workflows/android.yml
    

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27. steps:
    - uses: actions/checkout@v2
    - name: Set up JDK 11
    uses: actions/setup-java@v1
    with:
    java-version: 11
    - name: Validate Gradle Wrapper
    uses: gradle/wrapper-validation-action@v1
    - name: Remove Android 31 (S)
    run: $ANDROID_HOME/tools/bin/sdkmanager --uninstall "platforms;android-31"
    - name: Build with Gradle
    run: ./gradlew qa
    - name: Archive reports for failed build
    if: ${{ failure() }}
    uses: actions/upload-artifact@v2
    with:
    name: reports
    path: '*/build/reports'
    github.com/signalapp/Signal-Android/blob/master/.github/workflows/android.yml
    

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28. name: Android CI
    on:
    pull_request:
    push:
    branches:
    - 'master'
    - '4.**'
    - '5.**'
    jobs:
    build:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v2
    - name: Set up JDK 11
    uses: actions/setup-java@v1
    with:
    java-version: 11
    - name: Validate Gradle Wrapper
    uses: gradle/wrapper-validation-action@v1
    - name: Remove Android 31 (S)
    run: $ANDROID_HOME/tools/bin/sdkmanager --uninstall "platforms;android-31"
    - name: Build with Gradle
    run: ./gradlew qa
    - name: Archive reports for failed build
    if: ${{ failure() }}
    uses: actions/upload-artifact@v2
    with:
    name: reports
    path: '*/build/reports'
    • Multi-triggers
    • 1 Job
    • 5 mandatory Steps
    • 1 conditional Step
    github.com/signalapp/Signal-Android/blob/master/.github/workflows/android.yml
    

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29. jobs:
    build:
    # Something before
    steps:
    - uses: actions/cache@v1
    

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30. name: 'Cache'
    [. . .]
    inputs:
    path:
    description: 'A list of files, directories, and wildcard patterns to cache and restore'
    required: true
    key:
    description: 'An explicit key for restoring and saving the cache'
    required: true
    restore-keys:
    description: 'An ordered list of keys to use for restoring the cache if no cache hit occurred'
    required: false
    outputs:
    cache-hit:
    description: 'A boolean value to indicate an exact match was found for the primary key'
    https://github.com/actions/cache/blob/master/action.yml
    

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31. name: 'Cache'
    [. . .]
    inputs:
    path:
    description: 'A list of files, directories, and wildcard patterns to cache and restore'
    required: true
    key:
    description: 'An explicit key for restoring and saving the cache'
    required: true
    restore-keys:
    description: 'An ordered list of keys to use for restoring the cache if no cache hit occurred'
    required: false
    outputs:
    cache-hit:
    description: 'A boolean value to indicate an exact match was found for the primary key'
    https://github.com/actions/cache/blob/master/action.yml
    

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33. SCALING
    PIPELINES
    

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34. Step
    Step
    Job
    . . .
    Workflow
    Runner
    Github-hosted Runner vCPUs RAM SSD
    Ubuntu 2 7 GB 14 GB
    MacOS 3 14 GB 14 GB
    Windows 2 7 GB 14 GB
    by
    

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35. Github-hosted Runner
    Self-hosted Runner
    

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36. Step
    Job 1
    Step
    Step
    Job 2
    Step
    Step
    Job N
    Step
    . . .
    RUNNER RUNNER RUNNER
    Step
    Single Job
    . . .
    RUNNER
    vs
    Step
    Step
    Step
    Step
    Step
    🤔
    

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37. Build Matrix
    

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38. View Slide

39. View Slide

40. View Slide

41. name: Pre Merge Checks
    on:
    push:
    branches:
    - main
    pull_request:
    branches:
    - '**'
    jobs:
    gradle:
    if: ${{ !contains(github.event.head_commit.message, 'ci skip') }}
    strategy:
    fail-fast: false
    matrix:
    os: [ubuntu-latest, macos-latest, windows-latest]
    jdk: [8, 11, 17]
    runs-on: ${{ matrix.os }}
    env:
    JDK_VERSION: ${{ matrix.jdk }}
    GRADLE_OPTS: -Dorg.gradle.daemon=false
    

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42. name: Pre Merge Checks
    on:
    push:
    branches:
    - main
    pull_request:
    branches:
    - '**'
    jobs:
    gradle:
    if: ${{ !contains(github.event.head_commit.message, 'ci skip') }}
    strategy:
    fail-fast: false
    matrix:
    os: [ubuntu-latest, macos-latest, windows-latest]
    jdk: [8, 11, 17]
    runs-on: ${{ matrix.os }}
    env:
    JDK_VERSION: ${{ matrix.jdk }}
    GRADLE_OPTS: -Dorg.gradle.daemon=false
    

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43. steps:
    - name: Checkout Repo
    uses: actions/checkout@v2
    - name: Cache Gradle Folders
    uses: actions/cache@v2
    with:
    path: |
    ~/.gradle/caches/
    ~/.gradle/wrapper/
    key: cache-gradle-${{ matrix.os }}-${{ matrix.jdk }}-${{ hashFiles('gradle/libs.versions.toml')
    restore-keys: |
    cache-gradle-${{ matrix.os }}-${{ matrix.jdk }}-
    cache-gradle-${{ matrix.os }}-
    cache-gradle-
    - name: Setup Java
    uses: actions/setup-java@v2
    with:
    java-version: ${{ matrix.jdk }}
    distribution: 'adopt'
    - name: Build detekt
    run: ./gradlew build moveJarForIntegrationTest -x detekt
    

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44. steps:
    - name: Checkout Repo
    uses: actions/checkout@v2
    - name: Cache Gradle Folders
    uses: actions/cache@v2
    with:
    path: |
    ~/.gradle/caches/
    ~/.gradle/wrapper/
    key: cache-gradle-${{ matrix.os }}-${{ matrix.jdk }}-${{ hashFiles('gradle/libs.versions.toml')
    restore-keys: |
    cache-gradle-${{ matrix.os }}-${{ matrix.jdk }}-
    cache-gradle-${{ matrix.os }}-
    cache-gradle-
    - name: Setup Java
    uses: actions/setup-java@v2
    with:
    java-version: ${{ matrix.jdk }}
    distribution: 'adopt'
    - name: Build detekt
    run: ./gradlew build moveJarForIntegrationTest -x detekt
    

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45. Matrix (A, B)
    Step
    Step
    Job
    . . .
    Step
    Step
    Job
    . . .
    Step
    Step
    Job
    . . .
    Step
    Step
    Job
    . . .
    A0, B0 A1, B0 A2, B0 An, Bm
    . . .
    

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48. Custom
    Topologies
    

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49. Event Job 2
    Job 3
    Job 5
    Job 6
    Job 7
    Job 4
    Job 1
    

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50. jobs:
    first:
    steps:
    # Your steps here
    second:
    needs: first
    steps:
    # Your steps here
    Step
    first
    Step
    Step
    second
    Step
    Step
    Sequential Jobs
    

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51. jobs:
    first:
    steps:
    # Steps for first job
    second:
    steps:
    # Steps for second job
    third:
    needs: [first, second]
    steps:
    # Steps for third job
    Step
    first
    Step
    Step
    second
    Step
    third
    Step
    Step
    Fan-in to Job
    

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52. Step
    first
    Step
    Step
    second
    Step
    third
    Step
    Step
    jobs:
    first:
    steps:
    # Steps for first job
    second:
    needs: first
    steps:
    # Steps for second job
    third:
    needs: first
    steps:
    # Steps for third job
    Fan-out from Job
    

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53. View Slide

54. View Slide

55. https://github.com/dotanuki-labs/norris/blob/master/.github/workflows/main.yml
    acceptance_tests:
    runs-on: ubuntu-20.04
    timeout-minutes: 15
    needs: [assemble_apk, espresso_prepare, unit_tests, static_analysis]
    steps:
    - name: Project Checkout
    uses: actions/checkout@v2.3.5
    - name: Fetch Instrumentation artefacts
    uses: actions/download-artifact@v2.0.10
    - name: Run Espresso tests over emulator.wtf
    run: ./scripts/emulator-wtf.sh ${{ secrets.EMULATOR_WTF_TOKEN }}
    - name: Archive execution results
    if: success()
    uses: actions/upload-artifact@v2.2.4
    with:
    name: emulator-wtf-results
    path: emulator-wtf-results
    

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56. https://github.com/dotanuki-labs/norris/blob/master/.github/workflows/main.yml
    acceptance_tests:
    runs-on: ubuntu-20.04
    timeout-minutes: 15
    needs: [assemble_apk, espresso_prepare, unit_tests, static_analysis]
    steps:
    - name: Project Checkout
    uses: actions/checkout@v2.3.5
    - name: Fetch Instrumentation artefacts
    uses: actions/download-artifact@v2.0.10
    - name: Run Espresso tests over emulator.wtf
    run: ./scripts/emulator-wtf.sh ${{ secrets.EMULATOR_WTF_TOKEN }}
    - name: Archive execution results
    if: success()
    uses: actions/upload-artifact@v2.2.4
    with:
    name: emulator-wtf-results
    path: emulator-wtf-results
    

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57. STUDY
    CASE
    

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58. https://github.com/dotanuki-labs/norris
    +
    📸
    📸
    📸
    

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60. /
    .gitignore
    src/androidTest//ScreenshotTests.kt
    screenshots/debug
    your.nice.package.SomeTestName.png
    your.nice.package.AnotherTestName.png
    your.nice.package.OneMoreTest.png
    .
    .
    .
    

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61. /
    .gitignore
    src/androidTest//ScreenshotTests.kt
    screenshots/debug
    your.nice.package.SomeTestName.png
    your.nice.package.AnotherTestName.png
    your.nice.package.OneMoreTest.png
    .
    .
    .
    

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62. /
    .gitignore
    src/androidTest//ScreenshotTests.kt
    screenshots/debug
    your.nice.package.SomeTestName.png
    your.nice.package.AnotherTestName.png
    your.nice.package.OneMoreTest.png
    .
    .
    .
    

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63. Hooking over 3rd party Gradle plugins / tasks
    

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64. What if I told you … there is another way !!!
    

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65. 🔥
    • Have the 2 sets of images available beforehand
    • Define target device at pipeline time
    • Copy images into convention folder according
    device spec
    • Spawn emulator according device spec
    • Invoke target Gradle task and run tests !!!
    

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67. View Slide

68. name: Main
    jobs:
    # Other jobs
    screenshot_tests:
    runs-on: macOS-10.15
    needs: [acceptance_tests]
    timeout-minutes: 20
    strategy:
    fail-fast: true
    matrix:
    device: ['nexus4', 'pixel']
    github.com/dotanuki-labs/norris/blob/master/.github/workflows/main.yml#L125
    

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69. name: Main
    jobs:
    # Other jobs
    screenshot_tests:
    runs-on: macOS-10.15
    needs: [acceptance_tests]
    timeout-minutes: 20
    strategy:
    fail-fast: true
    matrix:
    device: ['nexus4', 'pixel']
    github.com/dotanuki-labs/norris/blob/master/.github/workflows/main.yml#L125
    

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70. name: Main
    jobs:
    # Other jobs
    screenshot_tests:
    runs-on: macOS-10.15
    needs: [acceptance_tests]
    timeout-minutes: 20
    strategy:
    fail-fast: true
    matrix:
    device: ['nexus4', 'pixel']
    github.com/dotanuki-labs/norris/blob/master/.github/workflows/main.yml#L125
    

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71. steps:
    - name: Project Checkout
    uses: actions/checkout@v2.3.4
    - name: Synchronize screenshots
    run: ./scripts/screenshots-sync.sh ${{ matrix.device }}
    - name: Assign emulator profile
    id: emulator-profile
    uses: ./.github/actions/assign-emulator-profile
    with:
    device: ${{ matrix.device }}
    - name: Run Screenshot tests
    uses: reactivecircus/android-emulator-runner@v2.20.0
    with:
    api-level: 28
    target: 'google_apis'
    profile: ${{ steps.emulator-profile.outputs.assigned }}
    script: ./gradlew clean executeScreenTests --no-daemon --stacktrace
    github.com/dotanuki-labs/norris/blob/master/.github/workflows/main.yml#L125
    

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72. steps:
    - name: Project Checkout
    uses: actions/checkout@v2.3.4
    - name: Synchronize screenshots
    run: ./scripts/screenshots-sync.sh ${{ matrix.device }}
    - name: Assign emulator profile
    id: emulator-profile
    uses: ./.github/actions/assign-emulator-profile
    with:
    device: ${{ matrix.device }}
    - name: Run Screenshot tests
    uses: reactivecircus/android-emulator-runner@v2.20.0
    with:
    api-level: 28
    target: 'google_apis'
    profile: ${{ steps.emulator-profile.outputs.assigned }}
    script: ./gradlew clean executeScreenTests --no-daemon --stacktrace
    github.com/dotanuki-labs/norris/blob/master/.github/workflows/main.yml#L125
    

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73. steps:
    - name: Project Checkout
    uses: actions/checkout@v2.3.4
    - name: Synchronize screenshots
    run: ./scripts/screenshots-sync.sh ${{ matrix.device }}
    - name: Assign emulator profile
    id: emulator-profile
    uses: ./.github/actions/assign-emulator-profile
    with:
    device: ${{ matrix.device }}
    - name: Run Screenshot tests
    uses: reactivecircus/android-emulator-runner@v2.20.0
    with:
    api-level: 28
    target: 'google_apis'
    profile: ${{ steps.emulator-profile.outputs.assigned }}
    script: ./gradlew clean executeScreenTests --no-daemon --stacktrace
    github.com/dotanuki-labs/norris/blob/master/.github/workflows/main.yml#L125
    Internal GHA
    “nexus4”
    “Nexus 4”
    

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74. steps:
    - name: Project Checkout
    uses: actions/checkout@v2.3.4
    - name: Synchronize screenshots
    run: ./scripts/screenshots-sync.sh ${{ matrix.device }}
    - name: Assign emulator profile
    id: emulator-profile
    uses: ./.github/actions/assign-emulator-profile
    with:
    device: ${{ matrix.device }}
    - name: Run Screenshot tests
    uses: reactivecircus/android-emulator-runner@v2.20.0
    with:
    api-level: 28
    target: 'google_apis'
    profile: ${{ steps.emulator-profile.outputs.assigned }}
    script: ./gradlew clean executeScreenTests --no-daemon --stacktrace
    github.com/dotanuki-labs/norris/blob/master/.github/workflows/main.yml#L125
    Internal GHA
    “nexus4”
    “Nexus 4”
    

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75. #! /usr/bin/env bash
    set -e
    readonly features=(
    "search"
    "facts"
    )
    readonly device="$1"
    sync() {
    echo -e "Syncing screenshots for device profile : $device"
    for feature in "${features[@]}"
    do
    origin="features/$feature/screenshots/$device"
    destination="features/$feature/screenshots/debug"
    rm -rf $destination
    echo -e "✔ Cleaned contents at $destination"
    cp -R $origin $destination
    echo -e "✔ Copied images from $origin$ to $destination"
    done
    }
    github.com/dotanuki-labs/norris/blob/master/scripts/screenshots-sync.sh
    

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76. #! /usr/bin/env bash
    set -e
    readonly features=(
    "search"
    "facts"
    )
    readonly device="$1"
    sync() {
    echo -e "Syncing screenshots for device profile : $device"
    for feature in "${features[@]}"
    do
    origin="features/$feature/screenshots/$device"
    destination="features/$feature/screenshots/debug"
    rm -rf $destination
    echo -e "✔ Cleaned contents at $destination"
    cp -R $origin $destination
    echo -e "✔ Copied images from $origin$ to $destination"
    done
    }
    github.com/dotanuki-labs/norris/blob/master/scripts/screenshots-sync.sh
    

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78. View Slide

79. ANDROID
    TIPS++
    

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80. Emulators on CI
    

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81. View Slide

82. View Slide

83. View Slide

84. Definining
    Timeouts
    

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85. name: Main
    on:
    pull_request:
    push:
    branches:
    - master
    jobs:
    static_analysis:
    runs-on: ubuntu-20.04
    timeout-minutes: 10
    steps:
    # Previous steps
    - name: Check code formatting
    run: ./gradlew ktlintCheck detekt —stacktrace
    https://github.com/dotanuki-labs/norris/blob/master/.github/workflows/main.yml
    

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86. name: Main
    on:
    pull_request:
    push:
    branches:
    - master
    jobs:
    static_analysis:
    runs-on: ubuntu-20.04
    timeout-minutes: 10
    steps:
    # Previous steps
    - name: Check code formatting
    run: ./gradlew ktlintCheck detekt —stacktrace
    https://github.com/dotanuki-labs/norris/blob/master/.github/workflows/main.yml
    

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88. View Slide

89. Gradle Caching
    

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90. JOB
    Save
    Restore
    Cloud Storage
    JOB
    Save
    Restore
    Cloud Storage
    JOB
    Workflow Run Workflow Run Workflow Run
    

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91. Hard questions around CI caching
    • How do we compute entry-keys that maximize cache hits?
    • What should be cached per execution?
    • Should we segregate cached files per Job?
    • Etc
    🤔
    

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92. Github Actions
    Required
    Configuration
    Layered
    Caching
    Tasks
    Caching
    Distribution
    Caching
    Segregation
    per Job
    actions/setup-java (built-in)
    Easiest
    (Zero conf)
    No Yes Yes No
    actions/cache
    Hard
    (All custom)
    No
    Opt-in per
    Configuration
    Opt-in per
    Configuration
    Possible
    gradle/gradle-build-action
    Easy
    (Sensible Defaults)
    No Yes Yes Yes
    burrunan/gradle-cache-action
    Easy
    (Sensible Defaults)
    Yes Yes Yes Yes
    

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93. Food for thought
    

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94. Task | Condition Merged PR Push Cherry pick Tag Nightly
    Static Analysis ✓ ✓ ✓
    Unit tests ✓ ✓ ✓ ✓
    Espresso tests ✓ ✓ ✓ ✓
    Smoke Tests ✓ ✓ ✓ ✓
    Security Analysis ✓ ✓ ✓ ✓
    Build ✓ ✓ ✓ ✓
    Artifacts generation ✓ ✓ ✓ ✓
    Artifact distribution ✓ ✓
    

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95. Decision Matrix Merged PR Push Cherry pick Tag Nightly
    Static Analysis ✓ ✓ ✓
    Unit tests ✓ ✓ ✓ ✓
    Espresso tests ✓ 🤔 ✓ ✓ 🤔
    Smoke Tests
    🤔 🤔 ✓ ✓ 🤔
    Security Analysis
    🤔 🤔 🤔 ✓
    Build ✓ ✓ 🤔 ✓ ✓
    Artifacts generation ✓ ✓ ✓ ✓
    Artifact distribution ✓ ✓
    

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96. Code Changes Tests Build Deployable
    Deploy Release
    Continuous Integration
    Continuous Delivery
    Monitoring
    E2E Tests
    

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97. Code Changes Tests Build Deployable
    CD ???
    CI
    

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98. FINAL
    REMARKS
    

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99. TL;DR
    • Open-source model for reusable Actions is quite powerful
    • Pipelines can scale both horizontally and vertically
    • Awesome option for open-source projects
    • Unique challenges for big Android projects
    

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100. UBIRATAN
     SOARES
     Brazilian Computer Scientist
     Senior Software Engineer @ N26
     GDE for Android and Kotlin
     @ubiratanfsoares
     ubiratansoares.dev
     

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101. THANKS
     

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