docker中中运行lnmp开发环境，界面报502错误进入docker

docker exec -it createID    bash
tailf /var/log/nginx/error.log 

错误信息：

2017/06/26 14:45:14 [crit] 11#11: *21 connect() to unix:/run/php/php7.0-fpm.sock failed (2: No such file or directory) while connecting to upstream, client: 172.19.0.1, server: 127.0.0.1, request: "GET /user/index HTTP/1.1", upstream: "fastcgi://unix:/run/php/php7.0-fpm.sock:", host: "127.0.0.1"

提示是找不到/run/php/php7.0-fpm.sock文件，进入/run， 发现只有/run/php7.0-fpm.sock。将docker的nginx配置文件中的fastcgi_pass配置改成/run/php7.0-fpm.sock，重启docker即可

    location ~ \.php$ {
        include snippets/fastcgi-php.conf;

        # With php7.0-cgi alone:
        #fastcgi_pass 127.0.0.1:9000;
        # With php7.0-fpm:
        fastcgi_pass unix:/run/php7.0-fpm.sock;
    }