Dockerfile

FROM java:jdk
ENV DEBIAN_FRONTEND noninteractive
# Dependencies
RUN dpkg --add-architecture i386 && apt-get update && apt-get install -yq file libstdc++6:i386 zlib1g:i386 libncurses5:i386 lib32z1 make ant maven mono-complete monodevelop nunit nunit-console --no-install-recommends

ENV GRADLE_ZIP gradle-4.1-all.zip
ENV GRADLE_URL https://services.gradle.org/distributions/${GRADLE_ZIP}
RUN curl -L ${GRADLE_URL} -o /tmp/${GRADLE_ZIP} && unzip /tmp/${GRADLE_ZIP} -d /usr/local && rm /tmp/${GRADLE_ZIP}
ENV GRADLE_HOME /usr/local/gradle-4.1
# Download and untar SDK
ENV ANDROID_SDK_URL https://dl.google.com/android/repository/sdk-tools-linux-3859397.zip
RUN curl -L ${ANDROID_SDK_URL} > /tmp/tools_zip.zip && unzip /tmp/tools_zip.zip -d /usr/local/android-sdk-linux
ENV ANDROID_SDK_HOME /usr/local/android-sdk-linux
ENV ANDROID_HOME /usr/local/android-sdk-linux
RUN chmod g+rwxs $ANDROID_HOME
# Install Android SDK components
RUN echo y | ${ANDROID_SDK_HOME}/tools/bin/sdkmanager platform-tools "build-tools;25.0.2" "build-tools;23.0.3" "platforms;android-23"   ndk-bundle
RUN mkdir -p "${ANDROID_HOME}/licenses"
RUN chmod -R 777 $ANDROID_HOME
RUN echo 2be0707768cdfbd4d05ab4bcbae066129ba66f5d > "${ANDROID_HOME}/licenses/Android SDK License"
RUN echo 8933bad161af4178b1185d1a37fbf41ea5269c55 > "${ANDROID_HOME}/licenses/android-sdk-license"
RUN echo d56f5187479451eabf01fb78af6dfcb131a6481e >> "${ANDROID_HOME}/licenses/android-sdk-license"

# Install Android NDK
ENV NDK_HOME ${ANDROID_SDK_HOME}/ndk-bundle
ENV ANDROID_NDK_HOME ${NDK_HOME}
ENV ANDROID_NDK_ROOT ${NDK_HOME}
# Path
ENV PATH $PATH:${ANDROID_SDK_HOME}/tools:${ANDROID_SDK_HOME}/platform-tools:${GRADLE_HOME}/bin:${NDK_HOME}
RUN useradd devrel-build -u 250520 -m