github.com/westcoastroms/westcoastroms-build@v0.0.0-20190928114312-2350e5a73030/build/make/tools/docker/README.md (about)

     1  The Dockerfile in this directory sets up an Ubuntu Trusty image ready to build
     2  a variety of Android branches (>= Lollipop). It's particulary useful to build
     3  older branches that required 14.04 if you've upgraded to something newer.
     4  
     5  First, build the image:
     6  ```
     7  # Copy your host gitconfig, or create a stripped down version
     8  $ cp ~/.gitconfig gitconfig
     9  $ docker build --build-arg userid=$(id -u) --build-arg groupid=$(id -g) --build-arg username=$(id -un) -t android-build-trusty .
    10  ```
    11  
    12  Then you can start up new instances with:
    13  ```
    14  $ docker run -it --rm -v $ANDROID_BUILD_TOP:/src android-build-trusty
    15  > cd /src; source build/envsetup.sh
    16  > lunch aosp_arm-eng
    17  > m -j50
    18  ```