refactoring; add service with local pypi instance for testing

docker/Dockerfile.linux.arm64

@@ -0,0 +1,13 @@
+FROM plugins/base:linux-arm64
+
+LABEL maintainer="Drone.IO Community <drone-dev@googlegroups.com>" \
+  org.label-schema.name="Drone Ansible" \
+  org.label-schema.vendor="Drone.IO Community" \
+  org.label-schema.schema-version="1.0"
+
+RUN apk add -U ca-certificates python3 && \
+    rm -rf /var/cache/apk/* && \
+    pip3 install --no-cache-dir --upgrade pip setuptools wheel six twine
+
+ADD release/linux/amd64/drone-pypi /bin/
+ENTRYPOINT ["/bin/drone-pypi"]