Dockerfile

FROM openjdk:8

MAINTAINER Dmitry Karikh <the.dr.hax@gmail.com>

# Install Git and dependencies
RUN dpkg --add-architecture i386 \
 && apt-get update \
 && apt-get install -y file git curl zip libncurses5:i386 libstdc++6:i386 zlib1g:i386 \
 && apt-get clean \
 && rm -rf /var/lib/apt/lists /var/cache/apt

# Set up environment variables
ENV ANDROID_HOME="/home/user/android-sdk-linux" \
    ANDROID_NDK="/home/user/android-ndk-linux" \
    ANDROID_NDK_HOME="/home/user/android-ndk-linux" \
    SDK_URL="https://dl.google.com/android/repository/sdk-tools-linux-3859397.zip" \
    GRADLE_URL="https://services.gradle.org/distributions/gradle-4.5.1-all.zip"

# Create a non-root user
RUN useradd -m user
USER user
WORKDIR /home/user

# Download Android SDK
RUN mkdir "$ANDROID_HOME" .android \
 && cd "$ANDROID_HOME" \
 && curl -o sdk.zip $SDK_URL \
 && unzip sdk.zip \
 && rm sdk.zip \
 && yes | $ANDROID_HOME/tools/bin/sdkmanager --licenses

RUN yes | $ANDROID_HOME/tools/bin/sdkmanager "build-tools;25.0.2" "build-tools;25.0.3" "platforms;android-23" "platforms;android-25" \
yes | $ANDROID_HOME/tools/bin/sdkmanager "extras;android;m2repository" "extras;google;m2repository" "extras;google;google_play_services"

# Install Gradle
RUN wget $GRADLE_URL -O gradle.zip \
 && unzip gradle.zip \
 && mv gradle-4.5.1 gradle \
 && rm gradle.zip \
 && mkdir .gradle

RUN wget -q --output-document=android-ndk.zip https://dl.google.com/android/repository/android-ndk-r16b-linux-x86_64.zip && \
	unzip android-ndk.zip && \
	rm -f android-ndk.zip && \
mv android-ndk-r16b android-ndk-linux

ENV PATH="/home/user/gradle/bin:${ANDROID_HOME}/tools:${ANDROID_HOME}/platform-tools:${PATH}:${ANDROID_NDK_HOME}"