base image builder

.github/workflows/base-image.yml

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+# build a docker image with android build tooling
+on:
+  workflow_dispatch:
+    inputs:
+      image:
+        default: ghcr.io/viam-labs/rdk-apk
+      tag:
+        default: latest
+
+jobs:
+  base-image:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - name: build
+      run: docker build -t ${{ inputs.image }}:${{ inputs.tag }} .
+    - name: push
+      run: docker push -t ${{ inputs.image }}:${{ inputs.tag }}

Dockerfile

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+# base image for APK builds
+FROM ubuntu:latest
+
+RUN --mount=type=cache,target=/var/cache/apt apt-get update
+# sdkmanager requires 21 jre, we build on old jdk because we target old droid. (not sure old jdk is necessary though)
+# make...python3 for tflite build
+# nasm for x264
+# golang for rdk
+RUN --mount=type=cache,target=/var/cache/apt apt-get install -qy \
+    zip \
+    openjdk-11-jdk-headless openjdk-21-jre-headless \
+    make curl patch cmake git python3 \
+    nasm \
+    golang-1.21-go
+
+ENV ANDROID_HOME /droid
+ENV ANDROID_SDK_ROOT /droid
+
+WORKDIR ${ANDROID_SDK_ROOT}
+
+# https://developer.android.com/studio#command-line-tools-only
+ARG CLI_TOOLS=commandlinetools-linux-11076708_latest.zip
+RUN curl --fail --silent --show-error -o ${CLI_TOOLS} https://dl.google.com/android/repository/${CLI_TOOLS} && unzip -q ${CLI_TOOLS} && rm ${CLI_TOOLS}
+
+ENV PATH ${PATH}:/droid/cmdline-tools/bin
+ARG NDK_VERSION=26.2.11394342
+ENV NDK_ROOT ${ANDROID_SDK_ROOT}/ndk/${NDK_VERSION}
+
+RUN yes | sdkmanager --sdk_root=$(realpath .) --install "platforms;android-28" "build-tools;26.0.3" "ndk;${NDK_VERSION}"
+
+ENV PATH ${PATH}:/usr/lib/go-1.21/bin:/root/go/bin
+
+RUN go install golang.org/x/mobile/cmd/gomobile@latest
+RUN gomobile init