Merge Develop into Master

android-build-server/Dockerfile

+FROM adoptopenjdk/openjdk8:alpine
+
+ARG BUILD_DATE
+ARG VCS_REF
+ARG VERSION
+LABEL org.label-schema.build-date=$BUILD_DATE \
+      org.label-schema.name="Build Server for Android Projects" \
+      org.label-schema.description="Docker image for building Android projects" \
+      org.label-schema.vcs-ref=$VCS_REF \
+      org.label-schema.vendor="University of Nebraska - Lincoln" \
+      org.label-schema.version="0.1.0" \
+      org.label-schema.schema-version="1.0" \
+      maintainer="Alan Nelson <alan.nelson@nebraska.edu>"
+
+ENV ANDROID_SDK_VERSION 4333796
+ENV ANDROID_HOME /opt/android-sdk-linux
+
+ENV PATH ${PATH}:${ANDROID_HOME}/tools:${ANDROID_HOME}/tools/bin:${ANDROID_HOME}/platform-tools
+
+WORKDIR /opt
+RUN apk add --no-cache curl bash unzip libstdc++ su-exec
+RUN mkdir -p /opt/android-sdk-linux \
+    && curl -q -o android-sdk-tools.zip -L https://dl.google.com/android/repository/sdk-tools-linux-${ANDROID_SDK_VERSION}.zip \
+    && unzip -q android-sdk-tools.zip -d ${ANDROID_HOME} \
+    && rm -f android-sdk-tools.zip \
+    && yes | sdkmanager --licenses
+
+COPY entrypoint.sh /usr/local/bin/
+RUN chmod +x /usr/local/bin/entrypoint.sh
+ENTRYPOINT ["/usr/local/bin/entrypoint.sh"]
+
+CMD "/bin/bash"
\ No newline at end of file