nginx and php-fpm in Docker - php

Question

I am in the process of Dockerising my webserver/php workflow.
But because I am on Windows, I need to use a virtual machine. I chose boot2docker which is a Tiny Core Linux running in Virtualbox and adapted for Docker.
I selected three containers:
nginx: the official nginx container;
jprjr/php-fpm: a php-fpm container;
mysql: for databases.
In boot2docker, /www/ contains my web projects and conf/, which has the following tree:
conf
│
├───fig
│ fig.yml
│
└───nginx
nginx.conf
servers-global.conf
servers.conf
Because docker-compose is not available for boot2docker, I must use fig to automate everything. Here is my fig.xml:
mysql:
image: mysql
environment:
- MYSQL_ROOT_PASSWORD=root
ports:
- 3306:3306
php:
image: jprjr/php-fpm
links:
- mysql:mysql
volumes:
- /www:/srv/http:ro
ports:
- 9000:9000
nginx:
image: nginx
links:
- php:php
volumes:
- /www:/www:ro
ports:
- 80:80
command: nginx -c /www/conf/nginx/nginx.conf
Here is my nginx.conf:
daemon off;
user nginx;
worker_processes 1;
error_log /var/log/nginx/error.log debug;
pid /var/run/nginx.pid;
events {
worker_connections 1024;
}
http {
include /etc/nginx/mime.types;
default_type application/octet-stream;
log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
access_log /var/log/nginx/access.log main;
sendfile off;
keepalive_timeout 65;
index index.php index.html index.htm;
include /www/conf/nginx/servers.conf;
autoindex on;
}
And the servers.conf:
server {
server_name lab.dev;
root /www/lab/;
include /www/conf/nginx/servers-global.conf;
}
# Some other servers (vhosts)
And the servers-global.conf:
listen 80;
location ~* \.php$ {
fastcgi_index index.php;
fastcgi_pass php:9000;
include /etc/nginx/fastcgi_params;
fastcgi_param SCRIPT_FILENAME /srv/http$fastcgi_script_name;
}
So the problem now (sorry for all that configuration, I believe it was needed to clearly explain the problem): If I access lab.dev, no problem (which shows that the host is created in Windows) but if I try to access lab.dev/test_autoload/, I have a File not found.. I know this comes from php-fpm not being able to access the files, and the nginx logs confirm this:
nginx_1 | 2015/05/28 14:56:02 [error] 5#5: *3 FastCGI sent in stderr:
"Primary script unknown" while reading response header from upstream,
client: 192.168.59.3, server: lab.dev, request: "GET /test_autoload/ HTTP/1.1",
upstream: "fastcgi://172.17.0.120:9000", host: "lab.dev", referrer: "http://lab.dev/"
I know that there is a index.php in lab/test_autoload/ in both containers, I have checked. In nginx, it is located in /www/lab/test_autoload/index.php and /srv/http/lab/test_autoload/index.php in php.
I believe the problem comes from root and/or fastcgi_param SCRIPT_FILENAME, but I do not know how to solve it.
I have tried many things, such as modifying the roots, using a rewrite rule, adding/removing some /s, etc, but nothing has made it change.
Again, sorry for all this config, but I think it was needed to describe the environment I am in.

Answer 1

I finally found the answer.
The variable $fastcgi_script_name did not take into account the root (logical, as it would have included www/ otherwise. This means that a global file can not work. An example :
# "generated" vhost
server {
server_name lab.dev;
root /www/lab/;
listen 80;
location ~* \.php$ {
fastcgi_index index.php;
fastcgi_pass php:9000;
include /etc/nginx/fastcgi_params;
fastcgi_param SCRIPT_FILENAME /srv/http$fastcgi_script_name;
# I need to add /lab after /srv/http because it requests PHP to look at the root of the web files, not in the lab/ folder
# fastcgi_param SCRIPT_FILENAME /srv/http/lab$fastcgi_script_name;
}
}
This meant that I couldn't write the lab/ at only one place, I needed to write at two different places (root and fastcgi_param) so I decided to write myself a small PHP script that used a .json and turned it into the servers.conf file. If anyone wants to have a look at it, just ask, it will be a pleasure to share it.

Answer 2

There's a mistake here:
fastcgi_param SCRIPT_FILENAME /srv/http/$fastcgi_script_name;
The good line is:
fastcgi_param SCRIPT_FILENAME /srv/http$fastcgi_script_name;
This is not the same thing.

Answer 3

Your nginx.conf is fully empty, where is the daemon off;
the user nginx line, worker_processes etc.. nginx need some configuration file before running the http.
In the http conf, same thing, is missing the mime types, the default_type, configuration of logs sendfile at on for boot2docker.
Your problem is clearly not a problem with Docker, but with the nginx configuration. Have you test your application with running docker run before using fig ? Did it worked ?