[fly-iot Feifan IoT] (15): Proyecto Python IOT de código abierto, resuelve el problema de la base de datos MySQL, empaqueta y publica la imagen en el almacén de Docker-Hub, reduce el tamaño y lanza la versión 2024-01.

Prefacio

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columna fly-iot Feifan IoT:
https://blog.csdn.net/freewebsys/category_12219758.html

1. Dirección de demostración en vídeo

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https://www.bilibili.com/video/BV1Nc411t7RU/?vd_source=4b290247452adda4e56d84b659b0c8a2

[fly-iot] (4): Lanzamiento de la versión 2024 de la imagen del proyecto IoT de Internet de las cosas, empaquetada utilizando el método de construcción de Docker para reducir el tamaño de la imagen de Python.

2. Python realiza el empaquetado de la ventana acoplable y utiliza el método del constructor para reducir el tamaño de la imagen.

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Archivo acoplable reflejado:

# 构建后端代码：
# docker build --tag flyiotadm/fly-iot-backend-python:v2024.01 .
# FROM python:3-alpine 使用最新的slim 版本。
# 
FROM python:3.6-slim as builder


# 设置debian的镜像源
RUN echo "deb http://mirrors.aliyun.com/debian/ bullseye main non-free contrib" > /etc/apt/sources.list && \
echo "deb-src http://mirrors.aliyun.com/debian/ bullseye main non-free contrib" >> /etc/apt/sources.list && \
echo "deb http://mirrors.aliyun.com/debian-security/ bullseye-security main" >> /etc/apt/sources.list && \
echo "deb-src http://mirrors.aliyun.com/debian-security/ bullseye-security main" >> /etc/apt/sources.list && \
echo "deb http://mirrors.aliyun.com/debian/ bullseye-updates main non-free contrib" >> /etc/apt/sources.list && \
echo "deb-src http://mirrors.aliyun.com/debian/ bullseye-updates main non-free contrib" >> /etc/apt/sources.list && \
echo "deb http://mirrors.aliyun.com/debian/ bullseye-backports main non-free contrib" >> /etc/apt/sources.list && \
echo "deb-src http://mirrors.aliyun.com/debian/ bullseye-backports main non-free contrib" >> /etc/apt/sources.list


# 设置python3的镜像源
RUN  pip3 config set global.index-url https://mirrors.aliyun.com/pypi/simple && \
pip3 config set install.trusted-host mirrors.aliyun.com 

# 安装需要的lib库
RUN  apt update && apt-get install -y locales libpq-dev python3-dev gcc g++ make

ADD requirements.txt /root/requirements.txt

# 最后安装依赖包，然后删除缓存和 pyc 文件，还可以节省40MB 空间。
RUN cd /root && pip3 install -r requirements.txt && rm -rf /root/.cache/ && \
    cd /usr/local/lib/python3.6/site-packages && find ./ -name *.pyc | xargs rm -f  

# 删除 *.pyc 文件
# python 3.6-slim-server-base ef9e5b350248 689MB
# 大小从 689MB 减少到 652MB
# python 3.6-slim-server-base 7134559c9496 652MB


# 拷贝本地文件到目录
COPY . /data

# service
FROM python:3.6-slim

# 直接使用基础镜像然后拷贝 site-packages 安装包即可。
COPY --from=builder /data /data
COPY --from=builder /usr/local/lib/python3.6/site-packages /usr/local/lib/python3.6/site-packages
COPY --from=builder /usr/local/bin/flask /usr/local/bin/flask
#COPY --from=builder /data/docker-entrypoint.sh /usr/bin/

WORKDIR /data
# 设置python 的环境变量和 fask app文件。
ENV LC_ALL="C.UTF-8" LANG="C.UTF-8"
ENV PYTHONPATH="/data"
ENV FLASK_APP="/data/manage.py"

EXPOSE 7000 7001

ENTRYPOINT ["/data/docker-entrypoint.sh"]

CMD ["/bin/sh"]

3. Publicar en Docker Hub

Publicar en Docker Hub:

compilación de la ventana acoplable --tag flyiotadm/fly-iot-backend-python:v2024.01.

Después de iniciar sesión en Docker, puede publicar:
Publicar

docker push flyiotadm/fly-iot-backend-python:v2024.01 
The push refers to repository [docker.io/flyiotadm/fly-iot-backend-python]
5f70bf18a086: Layer already exists 
71b22c8679b5: Pushed 
744c6e4e2737: Pushed 
42d08c675c51: Pushing [==================================================>]  189.1MB/189.1MB
c03fac33ac29: Pushed 
61e79b15f086: Layer already exists 
1d8d050c9cb8: Layer already exists 
2119d4d70feb: Layer already exists 
d0fa20bfdce7: Layer already exists 
2edcec3590a4: Layer already exists 

4. Entonces podrás comenzar a usar la nueva imagen.

El código completo de Docker-Compose:
https://gitee.com/fly-iot/docker-compose

...
############### 使用 iot-backend-python 版本 ###############
  iot-backend-python:
    image: flyiotadm/fly-iot-backend-python:v2024.01
    # build:
    #   context: .
    #   dockerfile: docker/DockerfileMysql
    container_name: fly-iot-backend-python
    ports:
        - "7000:7000"
    volumes:
        - "./python-conf/config-mysql.yml:/data/config/config.yml"
        - "../fly-iot-backend-python:/data"
    links:
        - mysql-iot:mysql-iot
    restart: always
    entrypoint: /data/docker-entrypoint.sh
    depends_on:
        - mysql-iot
        - tdengine