用于Symfony应用程序的Alpine docker设置

这个例子利用Nginx、MySQL和PHP-FPM docker容器（alpine ）在开发DEV环境中运行Symfony应用程序，只包含最基本的模块，所以你可以根据自己的需要进行调整。你所要做的就是，把下面的docker 文件夹复制到你的symfony应用程序根目录，然后在symfony/docker 文件夹中运行docker-compose up -d 命令。这就是全部!

结构

$ tree -a
.
└── dev
    ├── docker-compose.yml
    ├── .env
    ├── mysql
    │   ├── Dockerfile
    │   └── mysqld.cnf
    ├── nginx
    │   ├── app.conf
    │   ├── Dockerfile
    │   └── nginx.conf
    └── php
        ├── Dockerfile
        ├── php.ini
        └── www.conf

文件

.env

COMPOSE_PROJECT_NAME=inanzzz
REPOSITORY_NAME=dsa
IMAGE_TAG=latest

MYSQL_ROOT_PASSWORD=root
MYSQL_DATABASE=dsa

docker-compose.yml

version: '3'
 
services:

  dsa_mysql:
    build:
      context: ./mysql
    image: '${COMPOSE_PROJECT_NAME}/${REPOSITORY_NAME}_mysql:${IMAGE_TAG}'
    container_name: '${REPOSITORY_NAME}_mysql'
    hostname: '${REPOSITORY_NAME}-mysql'
    volumes:
      - ./mysql/mysqld.cnf:/etc/mysql/mysql.conf.d/mysqld.cnf:ro
      - ../../var/log/docker/mysql:/var/log/mysql:consistent
    environment:
      MYSQL_DATABASE: '${MYSQL_DATABASE}'
      MYSQL_ROOT_PASSWORD: '${MYSQL_ROOT_PASSWORD}'

  dsa_php:
    build:
      context: ./php
    image: '${COMPOSE_PROJECT_NAME}/${REPOSITORY_NAME}_php:${IMAGE_TAG}'
    container_name: '${REPOSITORY_NAME}_php'
    hostname: '${REPOSITORY_NAME}-php'
    volumes:
      - ../..:/app:consistent
      - ./php/www.conf:/usr/local/etc/php-fpm.d/www.conf:ro
      - ./php/php.ini:/usr/local/etc/php/conf.d/php.override.ini:ro
    working_dir: /app

  dsa_nginx:
    build:
      context: ./nginx
    image: '${COMPOSE_PROJECT_NAME}/${REPOSITORY_NAME}_nginx:${IMAGE_TAG}'
    container_name: '${REPOSITORY_NAME}_nginx'
    hostname: '${REPOSITORY_NAME}-nginx'
    ports:
      - '8081:80'
    volumes:
      - ../..:/app:consistent
      - ./nginx/app.conf:/etc/nginx/conf.d/default.conf:ro
      - ./nginx/nginx.conf:/etc/nginx/nginx.conf:ro
      - ../../var/log/docker/nginx:/var/log/nginx:consistent
    depends_on:
      - dsa_mysql
      - dsa_php

docker/mysql/Dockerfile

# debian:stretch-slim
FROM mysql:5.7.24

ENV PS1="\u@\h:\w\\$ "

docker/mysql/mysqld.cnf

[mysqld]

pid-file=/var/run/mysqld/mysqld.pid
socket=/var/run/mysqld/mysqld.sock
datadir=/var/lib/mysql
symbolic-links=0

character_set_server=utf8mb4
collation_server=utf8mb4_unicode_ci

explicit_defaults_for_timestamp=1

; LOGS
; General Query Log
general_log_file=/var/log/mysql/general_query.log
general_log=1
; Slow Query Logs
slow_query_log=1
long_query_time=1 #seconds
slow_query_log_file=/var/log/mysql/slow_query.log
log_queries_not_using_indexes=0
; Error Log
log_error=/var/log/mysql/error.log
[mysqld_safe]
log_error=/var/log/mysql/error.log

docker/nginx/Dockerfile

# alpine
FROM nginx:1.15.8-alpine

ENV PS1="\u@\h:\w\\$ "

RUN apk add --no-cache bash

docker/nginx/app.conf

server {
    listen 80 default_server;

    server_name localhost;

    root /app/public;

    location / {
        try_files $uri /index.php$is_args$args;
    }

    location ~ ^/index\.php(/|$) {
        fastcgi_pass dsa_php:9000;
        fastcgi_split_path_info ^(.+\.php)(/.*)$;
        fastcgi_hide_header X-Powered-By;
        include fastcgi_params;
        fastcgi_param SCRIPT_FILENAME $realpath_root$fastcgi_script_name;
        fastcgi_param DOCUMENT_ROOT $realpath_root;
        internal;
    }

    location ~ \.php$ {
        return 404;
    }

    error_log /var/log/nginx/app_error.log;
    access_log /var/log/nginx/app_access.log;
}

docker/nginx/nginx.conf

user nginx;

# 1 worker process per CPU core.
# Check max: $ grep processor /proc/cpuinfo | wc -l
worker_processes 2;

error_log /var/log/nginx/error.log warn;
pid /var/run/nginx.pid;

events {
    # Tells worker processes how many people can be served simultaneously.
    # worker_process (2) * worker_connections (2048) = 4096
    # Check max: $ ulimit -n
    worker_connections 2048;

    # Connection processing method. The epoll is efficient method used on Linux 2.6+
    use epoll;
}

http {
    include /etc/nginx/mime.types;
    default_type application/octet-stream;

    log_format main '$remote_addr - $remote_user [$time_local] "$request" '
                    '$status $body_bytes_sent "$http_referer" '
                    '"$http_user_agent" "$http_x_forwarded_for"';

    access_log /var/log/nginx/access.log main;

    # Used to reduce 502 and 504 HTTP errors.
    fastcgi_buffers 8 16k;
    fastcgi_buffer_size 32k;
    fastcgi_connect_timeout 300;
    fastcgi_send_timeout 300;
    fastcgi_read_timeout 300;

    # The sendfile allows transfer data from a file descriptor to another directly in kernel.
    # Combination of sendfile and tcp_nopush ensures that the packets are full before being sent to the client.
    # This reduces network overhead and speeds the way files are sent.
    # The tcp_nodelay forces the socket to send the data.
    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;

    # The client connection can stay open on the server up to given seconds.
    keepalive_timeout 65;

    # Hides Nginx server version in headers.
    server_tokens off;

    # Disable content-type sniffing on some browsers.
    add_header X-Content-Type-Options nosniff;

    # Enables the Cross-site scripting (XSS) filter built into most recent web browsers.
    # If user disables it on the browser level, this role re-enables it automatically on serve level.
    add_header X-XSS-Protection '1; mode=block';

    # Prevent the browser from rendering the page inside a frame/iframe to avoid clickjacking.
    add_header X-Frame-Options DENY;

    # Enable HSTS to prevent SSL stripping.
    add_header Strict-Transport-Security 'max-age=31536000; includeSubdomains; preload';

    # Prevent browser sending the referrer header when navigating from HTTPS to HTTP.
    add_header 'Referrer-Policy' 'no-referrer-when-downgrade';

    # Sets the maximum size of the types hash tables.
    types_hash_max_size 2048;

    # Compress files on the fly before transmitting.
    # Compressed files are then decompressed by the browsers that support it.
    gzip on;

    include /etc/nginx/conf.d/*.conf;
}

docker/php/Dockerfile

# alpine
FROM php:7.2.13-fpm-alpine3.8

ENV PS1="\u@\h:\w\\$ "

RUN apk update \
 && apk add --no-cache $PHPIZE_DEPS \
    bash \
    git \
    zip \
    unzip

# PHP extensions
RUN docker-php-ext-install opcache pdo_mysql mysqli
RUN docker-php-ext-enable opcache
#

# xdebug extensions
RUN pecl install xdebug
RUN docker-php-ext-enable xdebug
#

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

# Composer parallel install plugin
RUN composer global require hirak/prestissimo
#

RUN rm -rf /var/cache/apk/*

CMD ["php-fpm", "--nodaemonize"]

docker/php/php.ini

[PHP]
date.timezone=Europe/London
log_errors=On
error_reporting=E_ALL & ~E_DEPRECATED & ~E_STRICT
display_errors=Off
max_execution_time=60
memory_limit=256M

[opcache]
; http://symfony.com/doc/current/performance.html
opcache.enable_cli=1
opcache.memory_consumption=256
opcache.max_accelerated_files=20000
realpath_cache_size=4096K
realpath_cache_ttl=600

docker/php/www.conf

[global]
daemonize=no

[www]
 
user=www-data
group=www-data
 
listen=dsa_nginx:9000
 
; Dynamicaly chooses how the process manager will control the number of child processes.
pm=dynamic
; The maximum number of child processes to be created.
; This option sets the limit on the number of simultaneous requests that will be served.
; Availalbe RAM in MB / Average RAM used by php-fpm processes in MB=max_children
; 1500MB / 30MB=50 (minus a bit)
pm.max_children=40
; The number of child processes created on startup.
; min_spare_servers + (max_spare_servers - min_spare_servers) / 2
pm.start_servers=2
; The desired minimum number of idle server processes.
pm.min_spare_servers=2
; The desired maximum number of idle server processes.
; 2 or 4 times of the CPU core
pm.max_spare_servers=4
; The number of requests each child process should execute before respawning.
; This can be useful to work around memory leaks in 3rd party libraries.
pm.max_requests=500

构建

$ docker-compose up -d --build

测试

只需运行curl http://localhost:8081 命令。

日志

所有的docker服务日志（Nginx、PHP-FPM和MySQL）都可以在Symfony应用程序的var/log/docker 。

构建信息

图片

$ docker images
REPOSITORY            TAG                    IMAGE ID            CREATED             SIZE
inanzzz/dsa_php       latest                 9a401cb14441        13 minutes ago      315MB
inanzzz/dsa_nginx     latest                 7f7e02f91312        45 minutes ago      21.6MB
inanzzz/dsa_mysql     latest                 a574874d9b10        About an hour ago   372MB
php                   7.2.13-fpm-alpine3.8   262e46e3d43c        2 weeks ago         77.7MB
mysql                 5.7.24                 ba7a93aae2a8        10 days ago         372MB
nginx                 1.15.8-alpine          315798907716        12 days ago         17.8MB

容器

$ docker ps
CONTAINER ID        IMAGE                      COMMAND              PORTS                  NAMES
937f3fe489a5        inanzzz/dsa_nginx:latest   "nginx -g 'daemon of…"       0.0.0.0:8081->80/tcp   dsa_nginx
b2bba29d67e8        inanzzz/dsa_php:latest     "docker-php-entrypoi…"       9000/tcp               dsa_php
ea8e9e21f4be        inanzzz/dsa_mysql:latest   "docker-entrypoint.s…"       3306/tcp, 33060/tcp    dsa_mysql

网络

$ docker network ls
NETWORK ID          NAME                DRIVER              SCOPE
87542b88228e        inanzzz_default     bridge              local