在Mac系统下用Docker搭建Swoole开发环境
作为一款重新定义PHP的开源框架,Swoole让PHP可以应用于更多的场景。
对于一位PHP程序员来说,通过Swoole可以了解以往不曾接触过的编程方法。
众所周知,搭建开发环境其实是很麻烦的一件事,经常会遇到各种各样的问题。所以我用Docker搭建了一套Swoole环境,按照这篇教程,就可以非常简单得开始Swoole之旅。
首先是安装Docker,官网有详细的安装步骤: https://docs.docker.com/mac/step_one/
Mac用户参考上述网址即可。对于其他系统的用户来说,官网都有相应的方法。这里不再细说。
以下的步骤也都是基于Mac系统来进行。
安装完成后,在Launchpad里会看到Docker Quickstart Terminal这个名字的应用,点击后,会打开系统默认的终端,然后等一会儿,就可以看到鲸鱼的画像出现了。
要注意终端里的一条提示信息:
docker is configured to use the default machine with IP 192.168.99.100
记住这个IP地址,我们访问容器时会用到。
为了验证Docker是否运行起来,在打开的终端里输入下面的命令:
docker images
如果Docker没有正确运行,会看到下面的错误提示:
Cannot connect to the Docker daemon. Is the docker daemon running on this host?
确保Docker正确运行后,输入下面的命令,获取swoole镜像:
docker pull koolob/swoole-docker
这个镜像是基于php:5.6-cli的镜像构建,包括swoole的最新版本1.8.4,默认使用了下面的编译参数进行编译:
--enable-async-redis --enable-async-httpclient --enable-openssl --enable-jemalloc
swoole的编译参数说明:http://wiki.swoole.com/wiki/page/437.html
这个镜像的Dockerfile是开源的,有需要搭建自定义环境的朋友可以参考我的Dockerfile文件进行修改:Github
下载镜像后,就可以运行一个容器,进入Swoole环境了。
输入命令:
docker run -t -i koolob/swoole-docker /bin/bash
之后会进入到容器内。
再次输入:
php -r 'echo swoole_version()."\n";'
可以看到输出了1.8.4,也就是当前swoole的版本号。
这样我们就有了一个通过Docker构建的Swoole环境。
接下来,我们可以把代码和环境构建成一个镜像来运行。依然有个示例可以参考:
git clone https://github.com/koolob/swoole-docker-example.git
下载下来后,切换到目录中,直接执行
./build.sh
然后浏览器访问地址:http://192.168.99.100:8080/ 就可以看到结果了,同时在终端中也能看到程序输出的内容。在终端里使用Ctrl+C就可以退出容器。
192.168.99.100这个IP就是上文提到的终端提示的IP
我们运行的是一个非常简单的HTTP服务,代码位于src文件夹下:
$serv = new swoole_http_server("0.0.0.0", 8080);$serv->on('Request', function($request, $response) { var_dump($request->get); var_dump($request->post); var_dump($request->cookie); var_dump($request->files); var_dump($request->header); var_dump($request->server); $response->cookie("User", "Swoole"); $response->header("X-Server", "Swoole"); $response->end("<h1 id="Hello-Swoole">Hello Swoole!</h1>");});$serv->start();
build.sh脚本做的事就是构建镜像,并启动一个容器。
新构建的镜像也很简单,基于koolob/swoole-docker,开放8080端口,将src目录中的内容复制到镜像内,并在容器运行时,执行php代码。
之后要做的事就是修改src中的代码,执行build.sh脚本,然后测试。
至此,我们的Swoole开发环境搭建完毕。

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