Initial commit

.drone.yml

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+kind: template
+load: docker.yaml

Dockerfile

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+FROM larsks/esp-open-sdk
+RUN yum install -y libffi-devel
+RUN git clone --depth 1 -b v1.18 https://github.com/micropython/micropython.git /src	
+WORKDIR /src/mpy-cross
+RUN make
+WORKDIR /src/ports/esp8266
+RUN make submodules && make
+CMD make && cp build-GENERIC/firmware-combined.bin /build/

README.md

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+This Docker image drastically simplifies building MicroPython binaries for ESP8266 microcontrollers with
+[frozen modules](https://docs.micropython.org/en/latest/reference/manifest.html#freezing-source-code)
+-- that is flashable MicroPython images that include your payload as bytecode so they're easy to deploy
+and even more importantly free up precious RAM for ESP8266.
+
+Place your source code under `modules/` and the Docker image should pick them
+up and bundle them into the resulting firmware image placed under `build/`
+
+```
+docker run --rm -v $PWD/modules:/src/ports/esp8266/modules -v $PWD/build:/build harbor.k-space.ee/k-space/micropython-esp8266
+```