Forum Linux.débutant Changer le upload_tmp_dir : nginx, php-fpm, nextcloud

Bonjour à tous,

J'ai mis en oeuvre le serveur nextcloud sur ma raspberry pi 3.

J'ai monté un disque dur externe sur /mnt pour éviter de charger la carte SD de 8Go.

De cette facon, j'aimerais changer le upload_tmp_dir (/tmp et /mnt/data_tmp) tandis que le data_dir se change sans problème.

L'interface web de nextcloud permet de télécharger les fichiers depuis le serveur (via webdav et oc web interface menu).

De ce téléchargement se déclanche 3 process :
-1 nginx
-2 pool www

USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
mysql     1003  0.1  1.8 638020 18164 ?        Ssl  20:28   0:05 /usr/sbin/mysqld
root      2335  0.0  1.5 137980 15504 ?        Ss   21:18   0:00 php-fpm: master process (/etc/php/7.0/fpm/php-fpm.conf)
www-data  2337  1.1  2.1 140608 21532 ?        S    21:18   0:10 php-fpm: pool www
www-data  2338  1.0  1.8 138472 18888 ?        S    21:18   0:09 php-fpm: pool www
root      2355  0.0  0.1  47568  1292 ?        Ss   21:18   0:00 nginx: master process /usr/sbin/nginx -g daemon on; master_process on;
www-data  2356 10.9  0.3  47744  3752 ?        S    21:18   1:43 nginx: worker process
www-data  2357  7.8  1.2  56088 12132 ?        R    21:18   1:14 nginx: worker process
www-data  2358  0.0  0.2  47568  2836 ?        S    21:18   0:00 nginx: worker process
www-data  2359  0.0  0.2  47568  2836 ?        S    21:18   0:00 nginx: worker process
pi        2636  0.0  0.2   7732  2788 pts/0    R+   21:34   0:00 ps aux

J'ai trouvé quelques pistes pour résoudre le problème, je pense notemment à la conf nginx et php (surtout openbase_dir).

https://raspberry-hosting.com/en/faq/how-install-nginx-php-fpm-raspberry-pi
https://www.techandme.se/increase-max-file-size/
https://serverfault.com/questions/642034/nginx-and-php-fpm-permission
https://support.plesk.com/hc/en-us/articles/360001540233-How-to-change-a-directory-for-temporary-PHP-files

Je vous remercie par avance.

Ci-dessous ma conf nginx pour mon serveur.

upstream php-handler {
    #server 127.0.0.1:8000;
    server unix:/var/run/php/php7.0-fpm.sock;
}

server {
    listen 101;
    listen [::]:101;
    server_name www.domaine.org;
    # enforce https
    return 301 https://$host$request_uri;
}

server {
    listen 102 ssl http2;
    listen [::]:102 ssl http2;
    server_name www.domaine.org;

    ssl on;
    ssl_certificate /etc/letsencrypt/live/www.domaine.org/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/www.domaine.org/privkey.pem;

    # .well-known doit resté accessible
    location .well-known/ {
        allow all;
    }

    # Add headers to serve security related headers
    # Before enabling Strict-Transport-Security headers please read into this
    # topic first.
    # add_header Strict-Transport-Security "max-age=15768000;
    # includeSubDomains; preload;";
    #
    # WARNING: Only add the preload option once you read about
    # the consequences in https://hstspreload.org/. This option
    # will add the domain to a hardcoded list that is shipped
    # in all major browsers and getting removed from this list
    # could take several months.
    add_header X-Content-Type-Options nosniff;
    add_header X-XSS-Protection "1; mode=block";
    add_header X-Robots-Tag none;
    add_header X-Download-Options noopen;
    add_header X-Permitted-Cross-Domain-Policies none;

    # Path to the root of your installation
    root /var/www/nextcloud/;

    location = /robots.txt {
        allow all;
        log_not_found off;
        access_log off;
    }

    # The following 2 rules are only needed for the user_webfinger app.
    # Uncomment it if you're planning to use this app.
    #rewrite ^/.well-known/host-meta /public.php?service=host-meta last;
    #rewrite ^/.well-known/host-meta.json /public.php?service=host-meta-json
    # last;

    location = /.well-known/carddav {
      return 301 $scheme://$host/remote.php/dav;
    }
    location = /.well-known/caldav {
      return 301 $scheme://$host/remote.php/dav;
    }

    # set max upload size
    client_max_body_size 10G; #or 0 to disable allowed size
    fastcgi_buffers 64 128K;

    # Enable gzip but do not remove ETag headers
    gzip on;
    gzip_vary on;
    gzip_comp_level 4;
    gzip_min_length 256;
    gzip_proxied expired no-cache no-store private no_last_modified no_etag auth;
    gzip_types application/atom+xml application/javascript application/json application/ld+json application/manifest+json application/rss+xml application/vnd.geo+json application/vnd.ms-fontobject application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/bmp image/svg+xml image/x-icon text/cache-manifest text/css text/plain text/vcard text/vnd.rim.location.xloc text/vtt text/x-component text/x-cross-domain-policy;

    # Uncomment if your server is build with the ngx_pagespeed module
    # This module is currently not supported.
    #pagespeed off;

    location / {
        rewrite ^ /index.php$uri;
        client_body_temp_path /tmp;
        #upload_tmp_dir /mnt/my_data/tmp;
        #tempdirectory /mnt/my_data/tmp;
    }

    location ~ ^/.well-known/acme-challenge/* {
        allow all;
    }
    location ~ ^/(?:build|tests|config|lib|3rdparty|templates|data)/ {
        deny all;
    }
    location ~ ^/(?:\.|autotest|occ|issue|indie|db_|console) {
        deny all;
    }

    location ~ ^/(?:index|remote|public|cron|core/ajax/update|status|ocs/v[12]|updater/.+|ocs-provider/.+)\.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;
        fastcgi_param HTTPS on;
        #Avoid sending the security headers twice
        fastcgi_param modHeadersAvailable true;
        fastcgi_param front_controller_active true;
        fastcgi_pass php-handler;
        fastcgi_intercept_errors on;
        fastcgi_request_buffering off;

        #upload_tmp_dir = /tmp;
    }

    location ~ ^/(?:updater|ocs-provider)(?:$|/) {
        try_files $uri/ =404;
        index index.php;
    }

    # Adding the cache control header for js and css files
    # Make sure it is BELOW the PHP block
    location ~ \.(?:css|js|woff|svg|gif)$ {
        try_files $uri /index.php$uri$is_args$args;
        add_header Cache-Control "public, max-age=15778463";
        # Add headers to serve security related headers (It is intended to
        # have those duplicated to the ones above)
        # Before enabling Strict-Transport-Security headers please read into
        # this topic first.
        # add_header Strict-Transport-Security "max-age=15768000; includeSubDomains; preload;";
        #
        # WARNING: Only add the preload option once you read about
        # the consequences in https://hstspreload.org/. This option
        # will add the domain to a hardcoded list that is shipped
        # in all major browsers and getting removed from this list
        # could take several months.
        add_header X-Content-Type-Options nosniff;
        add_header X-XSS-Protection "1; mode=block";
        add_header X-Robots-Tag none;
        add_header X-Download-Options noopen;
        add_header X-Permitted-Cross-Domain-Policies none;
        # Optional: Don't log access to assets
        access_log off;
    }

    location ~ \.(?:png|html|ttf|ico|jpg|jpeg)$ {
        try_files $uri /index.php$uri$is_args$args;
        # Optional: Don't log access to other assets
        access_log off;
    }

    ########   UPDATE V13 NEXTCLOUD   ########
    #fastcgi_read_timeout 5s;
    #fastcgi_request_buffering off;

    #proxy_max_temp_file_size 1024m; #10GB?
    #proxy_buffering on;

    #large_client_header_buffers 16 32k;

}