# docker持续部署
构建镜像来自：https://github.com/MobileDevOps/flutter-sdk-image/

## 使用方法
1. 复制文件，并编辑其中的代理设置
```bash
cp .docker/.env.example .docker/.env
# ~/.gradle 如不存在请新建，该目录缓存一些gradle包
mkdir -p ~/.gradle && chmod -R 777 ~/.gradle
cp .docker/gradle.properties.example ~/.gradle/gradle.properties
```

2. 构建命令
```bash
cd <path-to-this-repo>

# 构建目录，防止目录权限问题
mkdir /tmp/build-cache
echo 'hello!' > /tmp/build-cache/isMe.txt
chown -R 999:996 /tmp/build-cache

# 构建sky版本APK
docker run --rm -it \
--env-file .docker/.env \
-v .:/home/mobiledevops/app \
-v /tmp/build-cache/:/home/mobiledevops/app/build/ \
-v ~/.gradle/:/home/mobiledevops/.gradle/ \
-v ~/android-sdk-linux:/opt/android-sdk-linux \
mobiledevops/flutter-sdk-image:3.16.4 \
flutter build apk --release --flavor sky -t lib/main_sky_full.dart

```

3. 构建完成后，APK文件在build/app/outputs/flutter-apk目录下


## 排除故障
### 内存要求
4G内存下经常有异常崩溃，建议虚拟机8G内存

### 测试谷歌连接
```bash
# flutter以及maven 下载地址是否正常
curl -i https://storage.googleapis.com/flutter_infra_release/
```

### 卡在Running Gradle task 'assembleSkyRelease'...
这一步最耗时的是在下载maven仓库的依赖，如果卡在这里，可能是代理设置有问题，
请检查代理~/.gradle/gradle.properties中配置的代理，代理面板是否有请求输出

在网络请求平息了之后，又进入了漫长到令人绝望的等待中，这时候你可能会怀疑地球是否仍在转动，我们是否陷入了是时空停滞，别担心，这大概是由于计算机性能太低，或者在CPU受限的虚拟机中导致的，你可以在另外的窗口运行htop命令，或直接查看宿主机的CPU使用率，来观察系统是否处于卡顿（多线程编译导致的）以及进程树列表是否在变动，这些观察可以让你继续耐心等待，直到屏幕出现一片红色的报错信息。

如果在报错信息中看到正在编译XX或者下载XX，没有看到任何错误但是终止了，这可能是内存不够导致的崩溃。

参考的信息
```bash
# du -sh ~/android-sdk-linux/
7.1G    /root/android-sdk-linux/

# du -sh ~/.gradle/
4.6G    /root/.gradle/

# du -sh /tmp/build-cache
514M    /tmp/build-cache

```

正常的输出
```bash
mobiledevops@946e5e22d9c5:~/app$ flutter build apk --release --flavor sky -t lib/main_sky_full.dart
Flutter assets will be downloaded from https://mirrors.tuna.tsinghua.edu.cn/flutter. Make sure you trust this source!

Warning: The plugin camera_android requires Android SDK version 34.
For more information about build configuration, see https://docs.flutter.dev/deployment/android#reviewing-the-gradle-build-configuration.
Warning: The plugin flutter_local_notifications requires Android SDK version 34.
For more information about build configuration, see https://docs.flutter.dev/deployment/android#reviewing-the-gradle-build-configuration.
Warning: The plugin fluwx requires Android SDK version 34.
For more information about build configuration, see https://docs.flutter.dev/deployment/android#reviewing-the-gradle-build-configuration.
Warning: The plugin google_maps_flutter_android requires Android SDK version 34.
For more information about build configuration, see https://docs.flutter.dev/deployment/android#reviewing-the-gradle-build-configuration.
Warning: The plugin image_picker_android requires Android SDK version 34.
For more information about build configuration, see https://docs.flutter.dev/deployment/android#reviewing-the-gradle-build-configuration.
Warning: The plugin url_launcher_android requires Android SDK version 34.
For more information about build configuration, see https://docs.flutter.dev/deployment/android#reviewing-the-gradle-build-configuration.
Warning: The plugin video_player_android requires Android SDK version 34.
For more information about build configuration, see https://docs.flutter.dev/deployment/android#reviewing-the-gradle-build-configuration.
Warning: The plugin webview_flutter_android requires Android SDK version 34.
For more information about build configuration, see https://docs.flutter.dev/deployment/android#reviewing-the-gradle-build-configuration.
One or more plugins require a higher Android SDK version.
Fix this issue by adding the following to /home/mobiledevops/app/android/app/build.gradle:
android {
  compileSdkVersion 34
  ...
}

Flutter assets will be downloaded from https://mirrors.tuna.tsinghua.edu.cn/flutter. Make sure you trust this source!
Font asset "MaterialIcons-Regular.otf" was tree-shaken, reducing it from 1645184 to 2388 bytes (99.9% reduction). Tree-shaking can be disabled by providing the --no-tree-shake-icons flag when building your app.
WARNING: [Processor] Library '/home/mobiledevops/.gradle/caches/modules-2/files-2.1/androidx.media2/media2-session/1.2.1/f927563711e36371c19b2e86fb7ccf1c3f259ca4/media2-session-1.2.1.aar' contains references to both AndroidX and old support library. This seems like the library is partially migrated. Jetifier will try to rewrite the library anyway.
 Example of androidX reference: 'androidx/media2/session/MediaBrowser$Builder'
 Example of support library reference: 'android/support/v4/media/session/MediaSessionCompat$Token'
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
Running Gradle task 'assembleSkyRelease'...                       257.0s
✓  Built build/app/outputs/flutter-apk/app-sky-release.apk (45.3MB).
mobiledevops@946e5e22d9c5:~/app$
exit
```

### 手动编译
```bash
cd android
./gradlew assembleSkyRelease
```