php-fpm & nginx in separated docker container, can not execute .php file - php

Question

I'd like to setup an completely LNMP environment with docker on a machine. But there is something wrong with separated php-fpm & nginx container.
What I'v done is :
pull images from docker.io :
docker pull php:7.1-fpm
docker pull nginx
run with image :
docker run -d --name php-fpm -v /data/Docker/php-fpm/configs/:/usr/local/etc/php-fpm.d -v /data/Docker/nginx/html:/var/www/html php:7.1-fpm
docker run -d --name nginx -v /data/Docker/nginx/configs/:/etc/nginx -v /data/Docker/nginx/html:/var/www/html -p 80:80 --link php-fpm nginx
All directories & files are 755 privileges.
Config files r below :
nginx.conf
server {
listen 80 default_server;
server_name SkyEyeLab;
root /var/www/html;
fastcgi_read_timeout 90;
location ~ \.php {
fastcgi_pass php-fpm:9000;
}
}
And php-fpm.conf(some of important config sections):
listen 0.0.0.0:9000
listen.allowed_clients = any
Then I checked the environment of nginx & php-fpm :
[root#w-Lab01 ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
6faf4a4b4f7e nginx "nginx -g 'daemon off" 19 minutes ago Up 19 minutes 0.0.0.0:80->80/tcp, 443/tcp nginx
9a6caff831d3 php:7.1-fpm "php-fpm" 20 minutes ago Up 20 minutes 9000/tcp php-fpm
[root#w-Lab01 ~]# docker exec 6faf4a4b4f7e ping -c3 php-fpm
PING php-fpm (172.17.0.2): 56 data bytes
64 bytes from 172.17.0.2: icmp_seq=0 ttl=64 time=0.081 ms
64 bytes from 172.17.0.2: icmp_seq=1 ttl=64 time=0.018 ms
64 bytes from 172.17.0.2: icmp_seq=2 ttl=64 time=0.041 ms
--- php-fpm ping statistics ---
3 packets transmitted, 3 packets received, 0% packet loss
round-trip min/avg/max/stddev = 0.018/0.047/0.081/0.026 ms
[root#w-Lab01 ~]# docker exec 9a6caff831d3 ss -apn
Netid State Recv-Q Send-Q Local Address:Port Peer Address:Port
tcp LISTEN 0 128 *:9000 *:* users:(("php-fpm",pid=1,fd=7))
Everything seems fine. Then I create a.php under /data/Docker/nginx/html(which is mouted to nginx's /var/www/html directory) with following content :
<?php
phpinfo();
?>
Then access http://localhost:80/a.php in web browser.
But I only got an empty page, I checked the access.log of nginx :
[root#w-Lab01 ~]# docker logs 6faf4a4b4f7e
220.181.171.120 - - [11/Oct/2016:10:25:11 +0000] "GET /a.php HTTP/1.1" 200 31 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:49.0) Gecko/20100101 Firefox/49.0"
220.181.171.120 - - [11/Oct/2016:10:25:12 +0000] "GET /a.php HTTP/1.1" 200 31 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:49.0) Gecko/20100101 Firefox/49.0"
220.181.171.120 - - [11/Oct/2016:10:31:58 +0000] "GET /a.php HTTP/1.1" 200 31 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:49.0) Gecko/20100101 Firefox/49.0"
220.181.171.120 - - [11/Oct/2016:10:31:59 +0000] "GET /a.php HTTP/1.1" 200 31 "-" "Mozilla/5.0 (X11; Linux x86_64; rv:49.0) Gecko/20100101 Firefox/49.0"
It seems a.php is correctly parsed & executed. But why I can not see phpinfo() result in web browser ?

Answer 1

well, after I changed nginx's config file :
server {
listen 80 default_server;
server_name SkyEyeLab;
root /var/www/html;
fastcgi_read_timeout 90;
location ~ \.php {
fastcgi_pass php-fpm:9000;
}
}
to
server {
listen 80 default_server;
server_name SkyEyeLab;
root /var/www/html;
fastcgi_read_timeout 90;
location ~ \.php {
fastcgi_pass php-fpm:9000;
include fastcgi.conf;
}
}
erverything goes fine.
fastcgi.conf is environment config file. you can check under your nginx's config directory(usually /etc/nginx), and see if there is fastcgi.conf or fastcgi_param in it.

Answer 2

maybe, if you want to use the name "php-fpm" in the nginx conf, you need to link the container like this:
docker run -d --name php-fpm -v /data/Docker/php-fpm/configs/:/usr/local/etc/php-fpm.d -v /data/Docker/nginx/html:/var/www/html php:7.1-fpm
and after:
docker run -d --name nginx --link php-fpm:php-fpm -v /data/Docker/nginx/configs/:/etc/nginx -v /data/Docker/nginx/html:/var/www/html -p 80:80 --link php-fpm nginx