在这个例子中，我们将运行composer来安装Symfony应用程序的依赖项，然后将vendor 文件夹和其他应用程序文件复制到容器镜像中。通过这种方式，我们的镜像将总是默认带有应用程序，所以我们所要做的就是创建一个容器并开始使用它。这是一个众所周知的做法，但我只想谈谈一个基本的实现。其主要目的是隔离应用程序代码，不将其暴露在主机操作系统上。我不打算在这里列举这些好处，因为它们都已经在互联网上写过了。这个解决方案的主要问题是，最终的docker镜像的大小将取决于应用程序和vendor 文件夹的大小。
结构
.
├── bin
│ └── ...
├── composer.json
├── composer.lock
├── Readme.md
├── symfony.lock
├──.env
├──.gitignore
├──.dockerignore
├── config
│ └── ...
├── docker
│ ├── docker-compose.yml
│ ├── Makefile
│ ├── nginx
│ │ ├── app.conf
│ │ ├── Dockerfile
│ │ └── nginx.conf
│ └── php
│ ├── Dockerfile
│ ├── init.sh
│ ├── php.ini
│ └── www.conf
├── public
│ └── index.php
├── src
│ └── ...
├── var
│ └── ...
└── vendor
└── ...
文件
我只是展示了重要文件的内容。其余的就不太重要了。
.dockerignore
config/packages/dev/
config/packages/test/
var/
vendor/
.dockerignore
.gitignore
*.md
.git/
.idea/
.DS_Store/
docker-compose.yml
version: "3.4"
services:
sport_php:
build:
context: ".."
dockerfile: "docker/php/Dockerfile"
hostname: "sport-php"
environment:
PS1: "\\u@\\h:\\w\\$$ "
sport_nginx:
build:
context: ".."
dockerfile: "docker/nginx/Dockerfile"
hostname: "sport-nginx"
ports:
- "1080:80"
depends_on:
- "sport_php"
environment:
PS1: "\\u@\\h:\\w\\$$ "
制作文件
build:
@docker-compose build
up:
@docker-compose up -d
nginx/Dockerfile
FROM nginx:1.15.8-alpine
WORKDIR /app
COPY public/index.php /app/public/index.php
COPY docker/nginx/app.conf /etc/nginx/conf.d/default.conf
COPY docker/nginx/nginx.conf /etc/nginx/nginx.conf
php/Dockerfile
#
# STAGE 1: composer
#
FROM composer:1.8.5 as composer
COPY composer.* /app/
RUN set -xe \
&& composer install --no-dev --no-scripts --no-suggest --no-interaction --prefer-dist --optimize-autoloader
COPY . /app
RUN composer dump-autoload --no-dev --optimize --classmap-authoritative
#
# STAGE 2: php
#
FROM php:7.2.13-fpm-alpine3.8
RUN apk update \
&& apk add --no-cache $PHPIZE_DEPS \
git \
zip \
unzip \
&& docker-php-ext-install \
opcache \
pdo_mysql \
&& docker-php-ext-enable \
opcache \
&& rm -rf \
/var/cache/apk/* \
/var/lib/apt/lists/*
WORKDIR /app
COPY . /app
COPY --from=composer /app/vendor /app/vendor
COPY docker/php/php.ini /usr/local/etc/php/conf.d/php.override.ini
COPY docker/php/www.conf /usr/local/etc/php-fpm.d/www.conf
COPY docker/php/init.sh /usr/local/bin/init.sh
RUN chmod +x /usr/local/bin/init.sh
CMD ["/usr/local/bin/init.sh"]
php/init.sh
#!/bin/sh
set -e
bin/console cache:warm
php-fpm --nodaemonize
构建和检查
$ make -sC docker/ build up
$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
docker_sport_php latest c7d3ba4a4c3a 22 hours ago 302MB
docker_sport_nginx latest 267a1d054046 22 hours ago 16.1MB
composer 1.8.5 78e8c9802c21 4 days ago 161MB
nginx 1.15.8-alpine b411e34b4606 4 months ago 16.1MB
php 7.2.13-fpm-alpine3.8 262e46e3d43c 5 months ago 77.7MB
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
b0faa127f7d4 docker_sport_nginx "nginx -g 'daemon of…" 22 hours ago Up 22 hours 0.0.0.0:1080->80/tcp docker_sport_nginx_1
f929370e4a0e docker_sport_php "docker-php-entrypoi…" 22 hours ago Up 22 hours 9000/tcp docker_sport_php_1
$ docker exec -it docker_sport_nginx_1 ls -l public
-rw-r--r-- 1 root root 798 May 16 07:50 index.php
$ docker exec -it docker_sport_php_1 ls -la
-rw-r--r-- 1 root root 279 May 16 09:10 .env
drwxr-xr-x 2 root root 4096 May 16 07:50 bin
-rw-r--r-- 1 root root 1443 May 16 08:10 composer.json
-rw-r--r-- 1 root root 118858 May 16 08:10 composer.lock
drwxr-xr-x 4 root root 4096 May 17 07:00 config
drwxr-xr-x 4 root root 4096 Jun 4 20:32 docker
drwxr-xr-x 2 root root 4096 May 16 07:50 public
drwxr-xr-x 8 root root 4096 May 17 07:00 src
-rw-r--r-- 1 root root 5998 May 16 08:10 symfony.lock
drwxrwxrwx 4 root root 4096 Jun 4 20:33 var
drwxr-xr-x 11 root root 4096 Jun 4 20:32 vendor
如果你在终端运行$ curl -i 0.0.0.0:1080 命令，应用程序应该可以工作。
