prnascimento/blockchain-client-base repository overview

This image has a pre-compiled configuration with fabric-sdk-py v0.8.0 of Hyper Ledger Fabric for Raspberry Pi. The purpose is to delivery a easy way to start running a blockchain client in a Rapberry Pi environment without needing to concern with the whole compilation process.

During the build process, a Python virtual environment was copied with the fabric-sdk-py and it's dependencies. The following Dockerfile and docker-compose.yaml shows the steps needed to start an application with this image:

docker-compose.yaml

version: "3.8"

services:
  blk-client:
    container_name: blk-client
    image: prnascimento/blockchain-client-base:1.0.0
    build: .
    volumes:
      - ./:/usr/src/app
    deploy:
      resources:
        limits:
          cpus: '0.70'
          memory: 20M

Dockerfile

FROM prnascimento/blockchain-client-base:1.0.0 as base-fabric

RUN groupadd -g 999 python && \
    useradd -r -u 999 -g python python

RUN mkdir /usr/src/app &&  chown python:python /usr/src/app
WORKDIR /usr/src/app

USER 999

WORKDIR /usr/src/app/<volume-mapped-directory>
ENV PATH="/usr/src/venv/bin:$PATH"

CMD ["/usr/src/venv/bin/python3", "<your-application.py>"]

In this Dockerfile <volume-mapped-directory> is the mapped application directory on the host, and <your-application.py> is the Python script to run.

After configuring the files docker-compose.yml and Dockerfile, execute the following command to build and run the container:

docker-compose up --build