带有 nginx、mysql、php7 和 slimphp 的 Dockerfile

Question

我需要对我项目中的供应商实例有问题。

我的 php dockerfile

FROM php:7.2.1-fpm

RUN apt-get update

# Install tools
RUN apt-get install -y \
    python-setuptools \
    software-properties-common \
    wget \
    git \
    curl \
    zip \
    vim

RUN echo 'deb http://httpredir.debian.org/debian jessie contrib' >> /etc/apt/sources.list

RUN apt-get update
RUN export DEBIAN_FRONTEND=noninteractive && apt-get install -y --force-yes libssl-dev curl  libcurl4-gnutls-dev libxml2-dev libicu-dev libmcrypt4 libmemcached11 openssl

#CONFIGURAÇÕES DO OPCACHE
RUN docker-php-ext-install opcache

#CONFIGURAÇÕES DO APCU
RUN pecl install apcu-5.1.5 && docker-php-ext-enable apcu

#LIBS EXTRAS
RUN docker-php-ext-install bcmath
RUN apt-get install -y libbz2-dev
RUN docker-php-ext-install bz2
RUN docker-php-ext-install mbstring
RUN apt-get install -y libpq-dev
RUN apt-get install -y libicu-dev
RUN docker-php-ext-install intl

#GD
RUN apt-get install -y libfreetype6-dev libjpeg62-turbo-dev libpng16-16
RUN docker-php-ext-configure gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/
RUN docker-php-ext-install gd

#PDO
RUN docker-php-ext-install pdo_mysql

#sudo
RUN apt-get update && apt-get install -y sudo && rm -rf /var/lib/apt/lists/*    

VOLUME /var/www/html
WORKDIR /var/www/html
RUN pwd

# Allow Composer to be run as root
ENV COMPOSER_ALLOW_SUPERUSER 1

# Install composer
RUN wget https://getcomposer.org/download/1.5.5/composer.phar
RUN chmod +x composer.phar
RUN sudo mv composer.phar /usr/local/bin/composer

# Install libs/var_dumper
RUN mkdir -p /var/.composer
RUN composer global --no-interaction --working-dir=/var/.composer require slim/slim

EXPOSE 9000

CMD ["php-fpm"]

我只想将供应商文件夹移动到 var/www/html

Docker 编写

nginx:
  container_name: nginx
  build: ./docker/nginx
  ports:
    - "80:80"
  volumes:
    - ./public:/var/www/html
  links:
        - php
        - mysql

php:
  container_name: php
  build: ./docker/php7
  volumes:
    - ./public:/var/www/html
  ports:
    - "9000:9000"
  links:
    - mysql

mysql:
  image: mysql:5.7
  restart: always
  ports:
    - "3306:3306"
  environment:
    - MYSQL_ROOT_PASSWORD=root
    - MYSQL_DATABASE=testedb

供应商文件位于 /var/.composer 中，我无法访问它们。 我想知道我如何正确构建图像以使用超薄框架和其他图像而不会出错。

Answer 1

Dockerfile

FROM php:7.2-fpm

# Install dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    libpng-dev \
    libjpeg62-turbo-dev \
    libfreetype6-dev \
    locales \
    zip \
    jpegoptim optipng pngquant gifsicle \
    vim \
    unzip \
    git \
    curl

RUN docker-php-ext-install mysqli   

# Clear cache
RUN apt-get clean && rm -rf /var/lib/apt/lists/*

# Install extensions
RUN docker-php-ext-install pdo_mysql mbstring zip exif pcntl
RUN docker-php-ext-configure gd --with-gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/ --with-png-dir=/usr/include/
RUN docker-php-ext-install gd

# Install composer
RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer

# Copy composer.lock and composer.json
COPY composer.json /var/www/html

# Copy existing application directory contents
COPY . /var/www/html

# Set working directory
WORKDIR /var/www/html

RUN composer install

# Expose port 9000 and start php-fpm server
EXPOSE 9000

CMD ["php-fpm"]

Docker-compose.yml

version: '3'

services:

  #PHP Service
  app:
    build:
      context: .
      dockerfile: Dockerfile
    image: digitalocean.com/php
    container_name: app
    restart: unless-stopped
    tty: true
    environment:
      SERVICE_NAME: app
      SERVICE_TAGS: dev
    volumes:
      - ./:/var/www/html
      - php-data:/var/www/html/vendor/
      - ./docker/php/local.ini:/usr/local/etc/php/conf.d/local.ini
    networks:
      - app-network

  #Nginx Service
  webserver:
    image: nginx:alpine
    container_name: webserver
    restart: unless-stopped
    tty: true
    ports:
      - "80:80"
      - "443:443"
    volumes:           
      - ./:/var/www/html
      - ./docker/nginx/conf.d/:/etc/nginx/conf.d/
    networks:
      - app-network

  #MySQL Service
  db:
    image: mysql:5.7.22
    container_name: db
    restart: unless-stopped
    tty: true
    ports:
      - "3306:3306"
    environment:
      MYSQL_DATABASE: testedb
      MYSQL_ROOT_PASSWORD: root
      SERVICE_TAGS: dev
      SERVICE_NAME: mysql
    volumes:
      - dbdata:/var/lib/mysql/
      - ./docker/mysql/my.cnf:/etc/mysql/my.cnf
    networks:
      - app-network

#Docker Networks
networks:
  app-network:
    driver: bridge
#Volumes
volumes:
  dbdata:
    driver: local
  php-data:

我这样做，创建 3 个卷并将 vendor 放入 php-data

Answer 2

我认为docker multistage build 是一种强大的机制，您可以使用它来实现轻量级容器。

对于多阶段构建，您可以在您的程序中使用多个 FROM 语句 Docker 文件。每个 FROM 指令可以使用不同的基数，并且每个 其中开始了构建的新阶段。您可以选择性地复制 从一个阶段到另一个阶段的文物，留下你的一切 不希望出现在最终图像中。

composer 并不苗条，我不明白为什么它应该驻留在您的最终图像中。如果我是你，我会创建一个作曲家阶段，在其中复制项目并运行composer install。然后我会将vendor 目录作为工件复制到最后阶段，这根本不会安装作曲家。这是一个基本的例子：

#create vendor:
FROM prooph/composer:7.3 as vendor-installer
WORKDIR /var/www/html
COPY . .
RUN composer install

#final stage
FROM php:7.2.1-fpm
WORKDIR /var/www/html
COPY --from vendor-installer /var/www/html/vendor vendor

编辑

您还必须从 docker-compose.yml 的卷语句中排除供应商目录，这样它就不会被覆盖：

php:
  container_name: php
  build: ./docker/php7
  volumes:
    - ./public:/var/www/html
    - /var/www/html/vendor