[Question] Serving fpm-alpine image with nginx

[lonix1]

I am trying to get the fpm-alpine image to work with nginx.

docker-compose.yml

version: "3.7"

networks:
  mynet:

volumes:
  mariadb_data:
  phpmyadmin_data:

services:

  mariadb:
    image: mariadb:10.4.8-bionic
    environment:
      MYSQL_DATABASE: mydb
      MYSQL_ROOT_PASSWORD: password
      MYSQL_USER: admin
      MYSQL_PASSWORD: password
    volumes:
      - mariadb_data:/var/lib/mysql/
    networks:
      - mynet

  phpmyadmin:
    image: phpmyadmin/phpmyadmin:fpm-alpine
    volumes:
      - phpmyadmin_data:/var/www/html/
    networks:
      - mynet
    depends_on:
      - mariadb

  nginx:
    image: nginx:1.17.4-alpine
    volumes:
      - ./default.conf:/etc/nginx/conf.d/default.conf:ro
      - phpmyadmin_data:/var/www/html/:ro
    ports:
      - "80:80"
    networks:
      - mynet
    depends_on:
      - mariadb
      - phpmyadmin

default.conf

resolver 127.0.0.11 valid=15s;

server {

  listen 80;
  server_name www.example.com;

  root /var/www/html/;
  index index.php index.html index.htm;

  set $upstream phpmyadmin:9000;

  location ~ \/pma {
    fastcgi_pass $upstream;
    fastcgi_index index.php;
    fastcgi_split_path_info ^(.+\.php)(/.*)$;
    include fastcgi_params;
    fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
    fastcgi_param PATH_INFO $fastcgi_path_info;
  }
}

Then: docker-compose up.

When I access http://www.example.com/pma I get

502 Bad Gateway

I also tried to get it working using a port instead of path, i.e. http://www.example.com:8080 instead of http://www.example.com/pma.

The docs show examples using traefik and haproxy, but not for nginx.

Can someone spot the error in my setup, or does someone have a working example to share?

[williamdes]

@lonix1 try port 9000 on host phpmyadmin for fastcgi_pass since you are sending the script to the cgi and not to the web server

If it does not work comment back here :)

[lonix1]

@williamdes Thanks - yes you are right it should be 9000! I edited it above.

However, it still does not work :-(

curl http://www.example.com/pma gives:

File not found.

The docker log shows:

"GET /pma/index.php" 404

[williamdes]

maybe you should change /var/www/html to /usr/src/phpmyadmin

See: https://github.com/phpmyadmin/docker/blob/master/fpm-alpine/Dockerfile#L77

I assume you have data into the volume phpmyadmin_data

https://superuser.com/a/435969/609233
I would write the nginx config block like that

  location ~ \/pma {
    rewrite ^/pma(/.*)$ $1 last;
    fastcgi_pass $upstream;
    fastcgi_index index.php;
    include snippets/fastcgi-php.conf;
    # remove line below ?
    fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
  }

You are maybe missing the rewrite part since the files are in the root folder and not in /pma

[lonix1]

When I do docker-compose up for the first time, it says

phpMyAdmin not found in /var/www/html - copying now...
Complete! phpMyAdmin has been successfully copied to /var/www/html

That's why I used that path. But even if I use /usr/src/phpmyadmin it fails with same error. I checked that there are files in there, looks okay.

I tried the new location block also. Same error (file not found).

Does that actually work for you?

---

I will carry on fiddling to get it working. Maybe we can then add it to the docs.

[williamdes]

After hours (since my last post) I could not make a rewrite folder that worked.

Light version

resolver 127.0.0.11 valid=15s;
server {
    listen 80;
    server_name williamdes.local default_server;
    root /var/www/html/;
    index index.php index.html index.htm;
    set $upstream phpmyadmin:9000;

    location ~ \.php$ {
        try_files $uri = 404;
        #fastcgi_split_path_info ^(.+\.php)(/.+)$;
        fastcgi_pass $upstream;
        fastcgi_index index.php;
        include fastcgi_params;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        fastcgi_param PATH_INFO $fastcgi_path_info;
    }
}

version: "3.7"

networks:
  mynet:

volumes:
  mariadb_data:
  phpmyadmin_data:

services:

  mariadb:
    image: mariadb:10.4.8-bionic
    environment:
      MYSQL_DATABASE: mydb
      MYSQL_ROOT_PASSWORD: password
      MYSQL_USER: admin
      MYSQL_PASSWORD: password
    volumes:
      - mariadb_data:/var/lib/mysql/
    networks:
      - mynet

  phpmyadmin:
    image: phpmyadmin/phpmyadmin:fpm-alpine
    environment:
      PMA_HOST: mariadb
    volumes:
      - phpmyadmin_data:/var/www/html/
    networks:
      - mynet
    depends_on:
      - mariadb

  nginx:
    image: nginx:1.17.4-alpine
    volumes:
      - ./default.conf:/etc/nginx/conf.d/default.conf:ro
      - phpmyadmin_data:/var/www/html/:ro
    ports:
      - "90:80"
    networks:
      - mynet
    depends_on:
      - mariadb
      - phpmyadmin

[williamdes]

Using a proxy

resolver 127.0.0.11 valid=15s;
server {
    listen 80;
    server_name williamdes.local default_server;
    root /var/www/html/;
    index index.php index.html index.htm;
    set $upstream phpmyadmin:9000;

    location ^~ /pma {
        rewrite /pma/(.*) /$1 last;
        proxy_pass http://localhost:80;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-Proto $http_x_forwarded_proto;
        proxy_cache_bypass $http_upgrade;
        proxy_redirect off;
    }

    location ~ \.php$ {
        try_files $uri = 404;
        #fastcgi_split_path_info ^(.+\.php)(/.+)$;
        fastcgi_pass $upstream;
        fastcgi_index index.php;
        include fastcgi_params;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        fastcgi_param PATH_INFO $fastcgi_path_info;
    }
}

Using CGI

Thanks to: https://stackoverflow.com/a/29213330/5155484

resolver 127.0.0.11 valid=15s;
server {
    listen 80;
    server_name williamdes.local default_server;
    root /var/www/html/;
    index index.php index.html index.htm;
    set $upstream phpmyadmin:9000;

    location ^~ /pma {
        rewrite /pma/(.*) /$1 last;
        try_files $uri = 404;
        #fastcgi_split_path_info ^(.+\.php)(/.+)$;
        fastcgi_pass $upstream;
        fastcgi_index index.php;
        include fastcgi_params;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        fastcgi_param PATH_INFO $fastcgi_path_info;
    }

    location ~ \.php$ {
        try_files $uri = 404;
        #fastcgi_split_path_info ^(.+\.php)(/.+)$;
        fastcgi_pass $upstream;
        fastcgi_index index.php;
        include fastcgi_params;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        fastcgi_param PATH_INFO $fastcgi_path_info;
    }
}

@lonix1 the CGI version is what you want

[lonix1]

@williamdes wow thanks! I used the "Using CGI" section, and got it working finally, but on the wrong path:

curl http://www.example.com/pma gives 404
but
curl http://www.example.com/ gives the phpmyadmin login page

---

BTW, I assume your "Using a proxy" section is for the latest image, and "Using CGI" is for the fpm-alpine and fpm images?

[williamdes]

I think you are correct on what you assume

@lonix1 can you paste your final configuration?

I made it work with the ^~ and position can be important from what Internet says

[lonix1]

Okay I got it to work, thanks to this!

Notes:

• No rewriting necessary
• I did not need to set PMA_ABSOLUTE_URI - not sure why?

resolver 127.0.0.11 valid=15s;

server {

  listen 80;
  server_name www.example.com example.com;
  set $upstream phpmyadmin:9000;

  location ^~ /phpmyadmin {
    alias /var/www/html/;
    index index.php;
    location ~ \.php$ {
      try_files $uri = 404;
      fastcgi_pass $upstream;
      include fastcgi_params;
      fastcgi_param SCRIPT_FILENAME $request_filename;
    }
  }

}

This should be in the docs. If someone knows how to do that, please add @williamdes' code for latest image and my code for fpm-alpine and fpm images.

[lonix1]

@williamdes BTW thanks for taking the time to help me... Appreciated!

[williamdes]

@lonix1 I think it is because all files need to know their base path?

[lonix1]

@williamdes Yes... so we need to correctly set SCRIPT_FILENAME.

[williamdes]

@lonix1 please post the config when you have a working example ;)