问题

I have a versioned Symfony API instance that I want to configure in the following manner:

api.com/api/v1 -> /srv/api-v1/public/index.php
api.com/api/v2 -> /srv/api-v2/public/index.php

I've tried to approach this using nginx location and aliases, as it's Symfony we use try_files (as recommended) to check for an actual file prior to defaulting to index.php.

Problem

It seems there is a known nginx bug that breaks the $uri variable with an alias and try_files.

How can I get around this bug to achieve my desired outcome?

nginx conf

server {
    listen 443 http2;
    listen [::]:443 http2;
    server_name api.com;
    root /srv/default/public/; # default root when no version
 
    location /api/v1 {
        alias /srv/api-v1/public/;
        try_files $uri /index.php$is_args$args;
    }

    location /api/v2 {
        alias /srv/api-v2/public/;
        try_files $uri /index.php$is_args$args;
    }

    location ~ ^/index\.php(/|$) {
        include /etc/nginx/fastcgi.conf;
        fastcgi_pass unix:/run/php-fpm-php7.2.socket;
        fastcgi_split_path_info ^(.+?\.php)(/.*)$;
        internal;
        fastcgi_read_timeout 300;
    }
}

Attempted fix

Going by this hacky fix I have created the following which does work but generates a huge config file, not ideal:

upstream v1 {
    server 127.0.0.1;
}
upstream v2 {
    server 127.0.0.1;
}
server {
    listen 443 http2;
    listen [::]:443 http2;
    server_name api.com;
 
    location /api/v1 {
        proxy_pass http://v1;
    }

    location /api/v2 {
        proxy_pass http://v2;
    }
}
server {
    server_name v1;
    root /srv/api-v1/public/;

    location / {
        try_files $uri /index.php$is_args$args;
    }

    location ~ ^/index\.php(/|$) {
        include /etc/nginx/fastcgi.conf;
        fastcgi_pass unix:/run/php-fpm-php7.2.socket;
        fastcgi_split_path_info ^(.+?\.php)(/.*)$;
        internal;
    }
}
server {
    server_name v2;
    root /srv/api-v2/public/;

    location / {
        try_files $uri /index.php$is_args$args;
    }

    location ~ ^/index\.php(/|$) {
        include /etc/nginx/fastcgi.conf;
        fastcgi_pass unix:/run/php-fpm-php7.2.socket;
        fastcgi_split_path_info ^(.+?\.php)(/.*)$;
        internal;
    }
}

回答1:

There is another workaround exists which can be used when an alias directive is used in conjunction with the try_files one (see this answer for an example). Can you try the following config?

server {
    listen 443 http2;
    listen [::]:443 http2;
    server_name api.com;
    root /srv/default/public/; # default root when no version
 
    location ~ ^/api/v1(?<v1route>/.*)? {
        alias /srv/api-v1/public;
        try_files $v1route /api/v1/index.php$is_args$args;
        location ~ ^/api/v1/index\.php$ {
            internal;
            include /etc/nginx/fastcgi.conf;
            fastcgi_param SCRIPT_FILENAME /srv/api-v1/public/index.php;
            fastcgi_read_timeout 300;
            fastcgi_pass unix:/run/php-fpm-php7.2.socket;
        }
    }

    location ~ ^/api/v2(?<v2route>/.*)? {
        alias /srv/api-v2/public;
        try_files $v2route /api/v2/index.php$is_args$args;
        location ~ ^/api/v2/index\.php$ {
            internal;
            include /etc/nginx/fastcgi.conf;
            fastcgi_param SCRIPT_FILENAME /srv/api-v2/public/index.php;
            fastcgi_read_timeout 300;
            fastcgi_pass unix:/run/php-fpm-php7.2.socket;
        }
    }
}

回答2:

In the "hacky fix" you are missing the trailing / to your proxy_pass directives. Here is a repo to easily test your implementation: https://github.com/MelwinKfr/nginx-workaround97

See this thread if you want more info about the trailing slash.

来源：https://stackoverflow.com/questions/65093486/nginx-alias-breaks-due-to-try-files-uri-alias-bug

标签

symfony