Using Docker to create a build environment

I am fast becoming a fan of "docker" but am still an infant in its details. That said, I used Espruino for ESP8266 as a test to see if we could build a docker image that would provide an environment for building the latest Espruino for ESP8266.

Assuming you have installed a docker engine locally, run:

$ docker -it kolban/espruino

You will end up in a shell prompt inside the container. From there, change into Espruino and run make.

If you want to build your own docker image, here is the Dockerfile I used to build this image:

FROM vowstar/esp8266
MAINTAINER Neil Kolban <kolban1@kolban.com>
RUN git clone https://github.com/espruino/Espruino.git
RUN wget http://espressif.com/sites/default/files/sdks/esp8266_nonos_sdk_v2.0.0_16_08_10.zip
RUN wget http://espressif.com/sites/default/files/sdks/esp8266_nonos_sdk_v2.0.0_patch_16_08_09.zip
RUN unzip esp8266_nonos_sdk_v2.0.0_16_08_10.zip -d /opt/esp-sdk
RUN unzip -o esp8266_nonos_sdk_v2.0.0_patch_16_08_09.zip -d /opt/esp-sdk/ESP8266_NONOS_SDK/lib
RUN rm -f esp8266_nonos_sdk_v2.0.0_16_08_10.zip esp8266_nonos_sdk_v2.0.0_patch_16_08_09.zip
ENV ESP8266_BOARD=1
ENV FLASH_4MB=1
ENV ESP8266_SDK_ROOT=/opt/esp-sdk/ESP8266_NONOS_SDK
ENV ESPHOSTNAME=espruino:88
ENV RELEASE=1

If you play with this and like it, then we'll see if we can't get a Dockerfile for ESP8266 added into the github repository for Espruino. I see that there are a couple there already so we will want to examine, merge or simply use.

I fully expect that most of y'all are way ahead on your docker journey than myself, so apologies if this is no news/value.