Docker里两个php容器一个正常访问，一个出现502 Bad Gateway nginx/1.17.8。

Question

问题描述

Docker里两个php容器一个镜像是phpfpm5.6，运行的程序是emlog，正常访问。一个镜像是phpfpm7.3，运行的程序是wordpress，运行的出现502 Bad Gateway nginx/1.17.8。

问题出现的平台版本及自己尝试过哪些方法

系统是centos7.6

对应容器内有wordpress程序

相关代码（日志）

nginx最新一次错误日志日志：

{"log":"2020/03/27 09:44:10 [error] 6#6: *72 connect() failed (111: Connection refused) while connecting to upstream, client: 000.000.000.000, server: blog.000000.xyz, request: "GET / HTTP/1.1", upstream: "fastcgi://172.19.0.4:9004", host: "blog.000000.xyz"n","stream":"stderr","time":"2020-03-27T09:44:10.201216128Z"}
{"log":"000.000.000.000 - - [27/Mar/2020:09:44:10 +0000] "GET / HTTP/1.1" 502 559 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.100 Safari/537.36" "-"n","stream":"stdout","time":"2020-03-27T09:44:10.201273369Z"}

nginx.conf配置文件(wordpress部分)

`server {

    listen 443 ssl;
    server_name blog.000000.xyz;
    root /wordpress;
    index index.html index.htm;
    ssl_certificate /ssl/blogssl.pem;
    ssl_certificate_key /ssl/blogssl.key;
    ssl_session_timeout 5m;
    ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE:ECDH:AES:HIGH:!NULL:!aNULL:!MD5:!ADH:!RC4;
    ssl_protocols TLSv1 TLSv1.1 TLSv1.2; 
    ssl_prefer_server_ciphers on;   
    location / {
        root /wordpress;  
        index index.php index.html index.htm;
    } 
    location ~\.php(.*)$ {
        root /wordpress;     
        fastcgi_pass  172.19.0.4:9004;  
        fastcgi_index index.php;
        fastcgi_param SCRIPT_FILENAME /wordpress$fastcgi_script_name;
        fastcgi_param PATH_INFO $1;   
        include fastcgi_params;
    }
}  `

php-fpm7.3运行日志

{"log":"[27-Mar-2020 04:10:15] NOTICE: fpm is running, pid 1n","stream":"stderr","time":"2020-03-27T04:10:15.920559488Z"}
{"log":"[27-Mar-2020 04:10:15] NOTICE: ready to handle connectionsn","stream":"stderr","time":"2020-03-27T04:10:15.920615726Z"}

我先安装的是emlog， wordpress还未曾运行成功。

已尝试的解决办法

nginx等待时间超时

PHP FastCGI进程数是否够用，已执行netstat -anpo | grep "php-cgi" | wc -l，输出结果是0

问题以及期望的结果

请问要怎样才能正常访问wordpress程序？

会不会是我的nginx配置文件错了呢？

或者是服务器配置过低跑不起来两个php?

（有部分隐私信息我用0替代了，请见谅）

Answer 1

172.19.0.4 改成容器名