Docker-compose Nginx php-fpm file not found

Question

I have a simple docker-compose config with php-fpm and nginx, and I can't see any php file. When I go to localhost, it shows File Not Found.

I tried everything I could find on the net, but everything I have tried has failed. It works fine for html, but not for php files. Seems to be a path issue, or something like that.

I come across this error when I docker-compose logs:

project3-php_1     | 172.17.0.5 -  29/Mar/2016:13:29:12 +0000 "GET /index.php" 404
project3-front_1   | 172.17.0.1 - - [29/Mar/2016:13:29:12 +0000] "GET / HTTP/1.1" 404 27 "-" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.116 Safari/537.36"
project3-front_1   | 2016/03/29 13:29:12 [error] 8#8: *3 FastCGI sent in stderr: "Primary script unknown" while reading response header from upstream, client: 172.17.0.1, server: localhost, request: "GET / HTTP/1.1", upstream: "fastcgi://172.17.0.2:9000", host: "localhost"

Here's my docker-compose:

project3-front:
    image: nginx
    ports:
      - "80:80"
    links:
      - "project3-php:project3-php"
    volumes:
      - ".:/home/docker"
      - "./nginxdir/default.conf:/etc/nginx/conf.d/default.conf"
      - "./html:/usr/share/nginx/html"

  project3-php:
      build: phpdir
      volumes:
        - ".:/home/docker:rw"
        - "./html:/var/www/html"
      ports:
        - "9000:9000"
      working_dir: "/home/docker"

Then my dockerfile for php:

FROM php:5.6-fpm
EXPOSE 9000

my default.conf for nginx:

server {
  listen 80;
  server_name localhost;
  index index.php index.html;

  error_log  /var/log/nginx/error.log  warn;
  access_log /var/log/nginx/access.log;
  root /usr/share/nginx/html;

  location ~ \.php$ {
      fastcgi_pass project3-php:9000;
      fastcgi_index index.php;
      include fastcgi_params;
      fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
  }
}

pwd of the main folder is:

/media/revenge/share/PROJECTS/docker_images/php7-nginx

The file hierarchy is:

├── docker-compose.yml
├── html
│   ├── index.php
├── nginxdir
│   ├── default.conf
├── phpdir
│   ├── dockerfile
│   └── php.ini

The whole folder is chmod 777

Any idea would be greatly appreciated. I'm sure there is something I didn't get. Thanks in advance.

Answer 1

Here is how you can find the problem

1. Switch on the nginx debug mode with custom command, eg:

docker-compose.yml

web:
    image: nginx
    volumes:
        - "~/www/project:/var/www"
        - "~/www/project/vhost.conf:/etc/nginx/conf.d/site.conf"
    # Add this row:
    command: [nginx-debug, '-g', 'daemon off;']

2. Edit your "site.conf" file (in this example it is the ~/www/project/vhost.conf file) Switch on the debug mode by the error_log (add "debug" word at the end):

error_log "/var/log/nginx/error.log" debug;

3. (Re)start the "web" container:

docker-compose stop web
docker-compose up -d web

4. Test the containers, are all containers running?

docker-compose ps

5. Test in browser
6. "Connect" and view or download ( http://blog.dcycle.com/blog/ae67284c/docker-compose-cp ) and view the /var/log/nginx/error.log file.

The problem in the most of case

You haven't set yet or you are using different directory structure in web and php-fpm. If you want to use different structure than you have to set the "fpm structure" at the fastcgi_param SCRIPT_FILENAME place, like this:

If your docker-compose.yml contains like this:

phpfpm:
    image: php:fpm
    volumes:
        - "~/www/project:/var/www/html/user/project"
#                        ^^^^^^^^^^^^^^^^^^^^^^^^^^ the path in the php-fpm container

You have to set this in "site.conf" in nginx container:

fastcgi_param SCRIPT_FILENAME /var/www/html/user/project$fastcgi_script_name;
#                             ^^^^^^^^^^^^^^^^^^^^^^^^^^

Answer 2

Finally found it:

I was missing this line in the volume of PHP section of docker-compose:

"./html:/usr/share/nginx/html"

here's what the docker-compose should look like:

project3-front:
    image: nginx
    ports:
        - "80:80"
    links:
        - "project3-php:project3-php"
    volumes:
        - ".:/home/docker"
        - "./nginxdir/default.conf:/etc/nginx/conf.d/default.conf"
        - "./html:/usr/share/nginx/html"
project3-php:
    build: phpdir
    volumes:
        - ".:/home/docker:rw"
        - "./html:/var/www/html"
    ports:
        - "9000:9000"
    working_dir: "/home/docker"

The absolute root (here "/usr/share/nginx/html") in the nginx default.conf file had to be set as well in the php part of docker-compose (was only under nginx before)

That's a relief ;)