Merge pull request #1127 from mkinney/add_docker

initial dockerfile and notes

Dockerfile

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+FROM ubuntu
+MAINTAINER Kevin Hester <kevinh@geeksville.com>
+
+RUN apt-get update
+RUN DEBIAN_FRONTEND=noninteractive TZ=Etc/UTC apt-get -y install wget python3 g++ zip python3-venv git vim
+RUN wget https://raw.githubusercontent.com/platformio/platformio-core-installer/master/get-platformio.py -O get-platformio.py; chmod +x get-platformio.py
+RUN python3 get-platformio.py
+RUN git clone https://github.com/meshtastic/Meshtastic-device.git
+RUN cd Meshtastic-device; git submodule update --init --recursive
+# only build the simulator
+RUN sed -i 's/^BOARDS_ESP32.*/BOARDS_ESP32=""/' Meshtastic-device/bin/build-all.sh
+RUN sed -i 's/^BOARDS_NRF52.*/BOARDS_NRF52=""/' Meshtastic-device/bin/build-all.sh
+RUN sed -i 's/echo "Building SPIFFS.*/exit/' Meshtastic-device/bin/build-all.sh
+RUN . ~/.platformio/penv/bin/activate; cd Meshtastic-device; ./bin/build-all.sh
+
+CMD ["/Meshtastic-device/release/latest/bins/universal/meshtasticd_linux_amd64"]

docker.txt

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+To build:
+  docker build -t meshtastic/device .
+
+To run:
+  docker run --rm -p 4403:4403 meshtastic/device
+or, to get a shell on the docker image:
+  docker run -it meshtastic/device bash
+
+To use python cli against it:
+  meshtastic --info --host localhost
+
+To stop:
+  # run this to get id
+  docker ps
+  # tip: you can just use the first few characters of the id in the next command
+  docker kill <id>
+