feat: Add Android image (#41)

* feat: Add Android image

* Fix title

images/android/Dockerfile.ubuntu

@@ -0,0 +1,29 @@
+FROM codercom/enterprise-base:ubuntu
+
+# Run everything as root
+USER root
+
+RUN apt-get update && \
+    apt-get install -y openjdk-14-jdk
+
+ENV ANDROID_SDK_ROOT /usr/lib/android-sdk
+RUN mkdir -p ${ANDROID_SDK_ROOT}
+
+# Install cmdline-tools.
+RUN cd ${ANDROID_SDK_ROOT} && \
+    mkdir cmdline-tools && \
+    cd cmdline-tools && \
+    wget https://dl.google.com/android/repository/commandlinetools-linux-6858069_latest.zip && \
+    unzip *.zip && rm *.zip && \
+    mv cmdline-tools latest
+ENV PATH ${PATH}:${ANDROID_SDK_ROOT}/cmdline-tools/latest/bin
+
+# Install build tools.
+RUN yes | sdkmanager "build-tools;29.0.3"
+ENV PATH ${PATH}:${ANDROID_SDK_ROOT}/platform-tools
+
+# Install platform android-29.
+RUN yes | sdkmanager "platforms;android-29"
+
+# Set back to coder user
+USER coder

images/android/README.md

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+# Enterprise Android
+
+[![Docker Pulls](https://img.shields.io/docker/pulls/codercom/enterprise-android?label=codercom%2Fenterprise-android)](https://hub.docker.com/r/codercom/enterprise-android)
+
+## Description
+
+Wraps [enterprise-base](../base/README.md) with Android SDK installation.
+
+## How To Use It
+
+This image is ready for direct use within Coder Enterprise. Environments
+created from this image will be able to build and launch Android apps.