===== Installation Nextcloud ======
{{tag>cloud Nextcloud}}

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Ce mode opératoire est en cours de rédaction et n'est pas finalisé.
</WRAP>


Nextcloud est une application de stockage de fichiers en ligne.

===== Installation Nginx =====
Nous installons Nginx
<code>
sudo aptitude install nginx
</code>

===== Récupération de Nextcloud =====
Le dernier paquet Nexcloud se trouve à cette adresse : https://nextcloud.com/install/#instructions-server \\
Nous récupérons l'archive Nextcloud
<code>
wget https://download.nextcloud.com/server/releases/latest.zip
</code>

Nous le décompressons
<code>
unzip latest.zip
</code>

Nous le renommons, lui donnons les bons droits et le plaçons dans /var/www
<code>
mv nextcloud cloud.grohub.org
sudo chown -R www-data: cloud.grohub.org
sudo mv cloud.grohub.org /var/www
</code>

===== Création vHost Nginx =====
Nous créons le fichier vHost
<code>
sudo vi /etc/nginx/sites-available/cloud.grohub.org.conf
</code>

Nous y ajoutons ce contenu
<code>
upstream php-handler {
    server unix:/var/run/php/nextcloud.sock;
}

# Set the `immutable` cache control options only for assets with a cache busting `v` argument
map $arg_v $asset_immutable {
    "" "";
    default "immutable";
}


server {
    listen 80;
    server_name cloud.example.com;

    # Prevent nginx HTTP Server Detection
    server_tokens off;

    # Enforce HTTPS
    return 301 https://$server_name$request_uri;
}

server {
    listen 443 ssl http2;
    server_name cloud.grohub.org;

    # Path to the root of your installation
    root /var/www/cloud.grohub.org;

    # Logs
    access_log  /var/log/nginx/cloud.grohub.org.access.log;
    error_log  /var/log/nginx/cloud.grohub.org.error.log;

    # Use Mozilla's guidelines for SSL/TLS settings
    # https://mozilla.github.io/server-side-tls/ssl-config-generator/
    ssl_certificate     /etc/nginx/ssl/cloud.grohub.org.crt;
    ssl_certificate_key /etc/nginx/ssl/cloud.grohub.org.key;

    # Prevent nginx HTTP Server Detection
    server_tokens off;

    # HSTS settings
    # 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 Strict-Transport-Security "max-age=15768000; includeSubDomains; preload" always;

    # set max upload size and increase upload timeout:
    client_max_body_size 512M;
    client_body_timeout 300s;
    fastcgi_buffers 64 4K;

    # 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/wasm 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;

    # Pagespeed is not supported by Nextcloud, so if your server is built
    # with the `ngx_pagespeed` module, uncomment this line to disable it.
    #pagespeed off;

    # The settings allows you to optimize the HTTP2 bandwitdth.
    # See https://blog.cloudflare.com/delivering-http-2-upload-speed-improvements/
    # for tunning hints
    client_body_buffer_size 512k;

    # HTTP response headers borrowed from Nextcloud `.htaccess`
    add_header Referrer-Policy                   "no-referrer"       always;
    add_header X-Content-Type-Options            "nosniff"           always;
    add_header X-Download-Options                "noopen"            always;
    add_header X-Frame-Options                   "SAMEORIGIN"        always;
    add_header X-Permitted-Cross-Domain-Policies "none"              always;
    add_header X-Robots-Tag                      "noindex, nofollow" always;
    add_header X-XSS-Protection                  "1; mode=block"     always;

    # Remove X-Powered-By, which is an information leak
    fastcgi_hide_header X-Powered-By;

    # Add .mjs as a file extension for javascript
    # Either include it in the default mime.types list
    # or include you can include that list explicitly and add the file extension
    # only for Nextcloud like below:
    #include mime.types;
    #types {
    #    application/javascript js mjs;
    #}

    # Specify how to handle directories -- specifying `/index.php$request_uri`
    # here as the fallback means that Nginx always exhibits the desired behaviour
    # when a client requests a path that corresponds to a directory that exists
    # on the server. In particular, if that directory contains an index.php file,
    # that file is correctly served; if it doesn't, then the request is passed to
    # the front-end controller. This consistent behaviour means that we don't need
    # to specify custom rules for certain paths (e.g. images and other assets,
    # `/updater`, `/ocm-provider`, `/ocs-provider`), and thus
    # `try_files $uri $uri/ /index.php$request_uri`
    # always provides the desired behaviour.
    index index.php index.html /index.php$request_uri;

    # Rule borrowed from `.htaccess` to handle Microsoft DAV clients
    location = / {
        if ( $http_user_agent ~ ^DavClnt ) {
            return 302 /remote.php/webdav/$is_args$args;
        }
    }

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

    # Make a regex exception for `/.well-known` so that clients can still
    # access it despite the existence of the regex rule
    # `location ~ /(\.|autotest|...)` which would otherwise handle requests
    # for `/.well-known`.
    location ^~ /.well-known {
        # The rules in this block are an adaptation of the rules
        # in `.htaccess` that concern `/.well-known`.

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

        location /.well-known/acme-challenge    { try_files $uri $uri/ =404; }
        location /.well-known/pki-validation    { try_files $uri $uri/ =404; }

        # Let Nextcloud's API for `/.well-known` URIs handle all other
        # requests by passing them to the front-end controller.
        return 301 /index.php$request_uri;
    }

    # Rules borrowed from `.htaccess` to hide certain paths from clients
    location ~ ^/(?:build|tests|config|lib|3rdparty|templates|data)(?:$|/)  { return 404; }
    location ~ ^/(?:\.|autotest|occ|issue|indie|db_|console)                { return 404; }

    # Ensure this block, which passes PHP files to the PHP process, is above the blocks
    # which handle static assets (as seen below). If this block is not declared first,
    # then Nginx will encounter an infinite rewriting loop when it prepends `/index.php`
    # to the URI, resulting in a HTTP 500 error response.
    location ~ \.php(?:$|/) {
        # Required for legacy support
        rewrite ^/(?!index|remote|public|cron|core\/ajax\/update|status|ocs\/v[12]|updater\/.+|oc[ms]-provider\/.+|.+\/richdocumentscode\/proxy) /index.php$request_uri;

        fastcgi_split_path_info ^(.+?\.php)(/.*)$;
        set $path_info $fastcgi_path_info;

        try_files $fastcgi_script_name =404;

        include fastcgi_params;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        fastcgi_param PATH_INFO $path_info;
        fastcgi_param HTTPS on;

        fastcgi_param modHeadersAvailable true;         # Avoid sending the security headers twice
        fastcgi_param front_controller_active true;     # Enable pretty urls
        fastcgi_pass php-handler;

        fastcgi_intercept_errors on;
        fastcgi_request_buffering off;

        fastcgi_max_temp_file_size 0;
    }

    location ~ \.(?:css|js|svg|gif|png|jpg|ico|wasm|tflite|map)$ {
        try_files $uri /index.php$request_uri;
        add_header Cache-Control "public, max-age=15778463, $asset_immutable";
        access_log off;     # Optional: Don't log access to assets

        location ~ \.wasm$ {
            default_type application/wasm;
        }
    }

    location ~ \.woff2?$ {
        try_files $uri /index.php$request_uri;
        expires 7d;         # Cache-Control policy borrowed from `.htaccess`
        access_log off;     # Optional: Don't log access to assets
    }

    # Rule borrowed from `.htaccess`
    location /remote {
        return 301 /remote.php$request_uri;
    }

    location / {
        try_files $uri $uri/ /index.php$request_uri;
    }
}
</code>

Nous créons le lien symbolique dans /etc/nginx/sites-enabled
<code>
cd /etc/nginx/sites-enabled
sudo ln -s /etc/nginx/sites-available/cloud.grohub.org.conf
</code>

Nous testons et rechargeons la configuration
<code>
sudo nginx -t
sudo systemctl reload nginx
</code>

===== Install / conf PHP =====

==== Installation PHP ====

Nous installon PHP-fpm et les différents modules dont nous aurons besoin
<code>
sudo apt install php-common php-imagick php8.2-apcu php8.2-bcmath php8.2-bz2 php8.2-cli php8.2-common php8.2-curl php8.2-fpm php8.2-gd php8.2-gmp php8.2-igbinary php8.2-imagick php8.2-imap php8.2-intl php8.2-mbstring php8.2-opcache php8.2-readline php8.2-xml php8.2-zip
</code>

==== php.ini ====

Nous réglons le temps maximal d'exécution pour éviter les timeout dans le fichier /etc/php/7.3/fpm/php.ini
<code>
max_execution_time = 300
</code>

Nous activons opcode. Toujours dans le fichier /etc/php/7.3/fpm/php.ini, nous recherchons ces clés et enlevons les commentaires our les activer
<code>
opcache.enable=1
opcache.interned_strings_buffer=8
opcache.max_accelerated_files=10000
opcache.memory_consumption=128
opcache.save_comments=1
opcache.revalidate_freq=1
</code>

==== PHP pool ====

Dans le fichier /etc/php/8.2/fpm/pool.d/nextcloud.conf nous saisissons ces éléments
<code>
[nextcloud]
listen = /run/php/nextcloud.sock

listen.owner = www-data
listen.group = www-data

user = www-data
group = www-data

pm = dynamic
pm.max_children = 120
pm.start_servers = 12
pm.min_spare_servers = 6
pm.max_spare_servers = 18

env[HOSTNAME] = $HOSTNAME
env[PATH] = /usr/local/bin:/usr/bin:/bin
env[TMP] = /tmp
env[TMPDIR] = /tmp
env[TEMP] = /tmp
</code>

===== Postgresql =====

==== Installation Postgresql ====

<code>
sudo apt install postgresql php8.2-pgsql
</code>

==== Création base / utilisateur ====

<code>
create database nextcloud;
create user nextcloud with encrypted password 'monmotdepasse';
grant all privileges on database nextcloud to nextcloud;
</code>

===== Redis =====

==== Installation Redis ====

<code>
sudo apt install redis-server php8.2-redis
</code>

==== Configuration Nextcloud ====

Nous éditons le ficher de configuration Nextcloud pour ajouter la configuration de Redis
<code>
sudo vi /var/www/cloud.grohub.org/config/config.php
</code>

<code>
  'filelocking.enabled' => true,
  'memcache.locking' => '\\OC\\Memcache\\Redis',
  'memcache.local' => '\\OC\\Memcache\\Redis',
  'memcache.distributed' => '\\OC\\Memcache\\Redis',
  'redis' => 
  array (
    'host' => 'localhost',
    'port' => 6379,
    'timeout' => 0.0,
    'password' => '',
  ),
</code>

===== Tuning =====

==== Tâches cron ====

Nous configurons cron

<code>
sudo -u www-data crontab -e
</code>

Nous ajoutons ceci à la fin du fichier

<code>
# Add the following line to the end of the file: (will call the cron script every 5 minutes)
*/5  *  *  *  * /usr/bin/php -f /var/www/cloud.grohub.org/cron.php
</code>

==== Pour gérer les thèmes ====

Si la gestion des thèmes est configurée, nous aurons besoin de manipuler des images

<code>
sudo apt install libmagickcore-6.q16-6 libmagickcore-6.q16-6-extra
</code>

===== Liens =====
  * [[https://docs.nextcloud.com/server/latest/admin_manual/|documentation Nextcloud]]
  * [[https://nextcloud.com/|site de l'éditeur]]