Using the prebuilt image

The public Docker Hub repository is here: https://hub.docker.com/r/sraillard/alpine-android-ndk/

Get the image:

docker pull sraillard/alpine-android-ndk:r18

To compile a project: (clean after exit with --rm and bind mount a local path)

docker run -rm --mount source=/path/to/ndk/project/,destination=/source,type=bind --workdir=/source sraillard/alpine-android-ndk:r18 ndk-build

Dependencies

• Docker Alpine Linux base container from Docker hub:
  • https://hub.docker.com/_/alpine/
  • Very small base image
• Android NDK from Google:
  • https://developer.android.com/ndk/downloads/
  • Subject to license agreement
  • 531 MB download (zip file)
  • Latest version is r18
• glibc for Alpine Linux:
  • https://github.com/sgerrand/alpine-pkg-glibc/
  • Allow for use of applications needing glibc (like Android tools)
  • Discussion: gliderlabs/docker-alpine#169
  • Source#1: https://hub.docker.com/r/alvrme/alpine-android/~/dockerfile/
  • Source#2: https://github.com/frol/docker-alpine-glibc

Step by step build

Launch a shell from the Alpine Linux container:

docker pull alpine
docker run -it alpine

In the container shell:

apk add --no-cache nano bash make file
mkdir /ndk
cd /ndk
wget -O ndk.zip https://dl.google.com/android/repository/android-ndk-r18-linux-x86_64.zip
unzip ndk.zip
rm ndk.zip
wget https://alpine-pkgs.sgerrand.com/sgerrand.rsa.pub -O /etc/apk/keys/sgerrand.rsa.pub
wget https://github.com/sgerrand/alpine-pkg-glibc/releases/download/2.28-r0/glibc-2.28-r0.apk -O /tmp/glibc.apk
wget https://github.com/sgerrand/alpine-pkg-glibc/releases/download/2.28-r0/glibc-bin-2.28-r0.apk -O /tmp/glibc-bin.apk
apk add --no-cache /tmp/glibc.apk /tmp/glibc-bin.apk
rm /tmp/glibc.apk /tmp/glibc-bin.apk
exit

Save the container modifications:

docker ps -a (get the container ID)
docker commit ID test-ndk

Test: compile a NDK project:

 docker run --mount source=/path/to/ndk/project/,destination=/source,type=bind --workdir=/source test-ndk /ndk/android-ndk-r18/ndk-build