CentOS 8
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NextCloud : Install2020/10/12
 
Install NextCloud which is the Cloud Storage System.
The version of NextCloud on this example is NextCloud 20 which is the latest one as of now.
[1]
Install Apache httpd, refer to here.
[2]
Configure SSL/TLS for Apache httpd.
HTTPS connection is required when using Chat, Camera, Screen Sharing features and so on.
[3]
Install PHP, refer to here.
[4]
Install MariaDB Server, refer to here.
[5] Install other required PHP modules.
# enable powertools, EPEL

[root@dlp ~]#
dnf --enablerepo=powertools,epel -y install php-pear php-mbstring php-pdo php-intl php-gd php-pecl-zip php-mysqlnd php-bcmath php-gmp php-opcache php-pecl-apcu ImageMagick ImageMagick-devel make

[root@dlp ~]#
pecl install imagick

[root@dlp ~]#
echo 'extension=imagick.so' >> /etc/php.ini
[root@dlp ~]#
vi /etc/php-fpm.d/nextcloud.conf
# create new

[nextcloud]
user = apache
group = apache

listen = /run/php-fpm/nextcloud.sock
listen.acl_users = apache
listen.allowed_clients = 127.0.0.1

pm = dynamic
pm.max_children = 50
pm.start_servers = 5
pm.min_spare_servers = 5
pm.max_spare_servers = 35

php_value[session.save_handler] = files
php_value[session.save_path]    = /var/lib/php/session

# maybe you need to configure parameters below if users want to upload large files
php_value[max_execution_time] = 3600
php_value[memory_limit] = 2G
php_value[post_max_size] = 2G
php_value[upload_max_filesize] = 2G
php_value[max_input_time] = 3600
php_value[max_input_vars] = 2000
php_value[date.timezone] = Asia/Tokyo

php_value[opcache.enable] = 1
php_value[opcache.memory_consumption] = 128
php_value[opcache.interned_strings_buffer] = 8
php_value[opcache.max_accelerated_files] = 10000
php_value[opcache.revalidate_freq] = 1
php_value[opcache.save_comments] = 1
[root@dlp ~]#
systemctl restart php-fpm

[6] Create a User and Database on MariaDB for NextCloud.
[root@dlp ~]#
mysql -u root -p 

Enter password:
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 16
Server version: 10.3.17-MariaDB MariaDB Server

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [(none)]> create database nextcloud; 
Query OK, 1 row affected (0.00 sec)

MariaDB [(none)]> grant all privileges on nextcloud.* to nextcloud@'localhost' identified by 'password'; 
Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> flush privileges; 
Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> exit 
Bye
[7] Configure Apache httpd for NextCloud.
[root@dlp ~]#
vi /etc/httpd/conf.d/nextcloud.conf 
Timeout 3600
ProxyTimeout 3600

Alias /nextcloud "/var/www/nextcloud/"
<Directory "/var/www/nextcloud">
    Options FollowSymLinks
    AllowOverride All
    Require all granted

    <FilesMatch \.(php|phar)$>
        SetHandler "proxy:unix:/run/php-fpm/nextcloud.sock|fcgi://localhost"
    </FilesMatch>
</Directory>
[root@dlp ~]#
wget https://download.nextcloud.com/server/releases/nextcloud-20.0.0.zip -P /var/www/

[root@dlp ~]#
unzip /var/www/nextcloud-20.0.0.zip -d /var/www/

[root@dlp ~]#
chown -R apache. /var/www/nextcloud

[root@dlp ~]#
systemctl restart httpd

[8] If SELinux is enabled, change policy.
[root@dlp ~]#
setsebool -P httpd_can_network_connect on

[root@dlp ~]#
setsebool -P httpd_unified on

[root@dlp ~]#
setsebool -P httpd_execmem on

[root@dlp ~]#
vi nextcloud.te
# create new

module nextcloud 1.0;

require {
        type configfs_t;
        type httpd_t;
        type httpd_sys_script_t;
        type fuse_device_t;
        type httpd_sys_rw_content_t;
        type kernel_t;
        type lib_t;
        type init_t;
        class dir getattr;
        class file { execute unlink execute_no_trans };
        class dir { read remove_name rmdir write setattr mounton };
        class chr_file { open read write };
        class lnk_file unlink;
        class process setrlimit;
        class dir setattr;
        class system module_request;
}

#============= httpd_t ==============
allow httpd_t configfs_t:dir getattr;

#============= httpd_sys_script_t ==============
allow httpd_sys_script_t fuse_device_t:chr_file { open read write };
allow httpd_sys_script_t httpd_sys_rw_content_t:dir mounton;
allow httpd_sys_script_t httpd_sys_rw_content_t:file { execute execute_no_trans };
allow httpd_sys_script_t lib_t:dir setattr;
allow httpd_sys_script_t self:process setrlimit;
allow httpd_sys_script_t kernel_t:system module_request;

#============= init_t ==============
allow init_t httpd_sys_rw_content_t:dir { read remove_name rmdir write };
allow init_t httpd_sys_rw_content_t:file unlink;
allow init_t httpd_sys_rw_content_t:lnk_file unlink;
[root@dlp ~]#
checkmodule -m -M -o nextcloud.mod nextcloud.te

[root@dlp ~]#
semodule_package --outfile nextcloud.pp --module nextcloud.mod

[root@dlp ~]#
semodule -i nextcloud.pp

[9] Access to the URL [https://(Server's Hostname or IP address)/nextcloud/] with Web browser on any Client, then following screen is displayed. Configure Administrative user account and Database connection infomation. Input any admin user name and password. For Database, specify MariaDB user and database you added on [6]. That's OK, Click [Finish Setup].
[10] By default, recommended applications are installed.
[11] After recommended apps successfully installed, NextCloud start page is displayed.
[12] After finishing Setup, it's possible to access to NextCloud to the URL [https://(Server's Hostname or IP address)/nextcloud/].
[13] After initial setup, configure memory cache which is the NextCloud recommended requirements.
[root@dlp ~]#
vi /var/www/nextcloud/config/config.php 
.....
.....
  # add a line in the section
  'installed' => true,
  'memcache.local' => '\OC\Memcache\APCu',
);
[root@dlp ~]#
systemctl restart httpd php-fpm

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