There are quite a few websites with instructions on how to install the "LEMP" {Linux,(E)Nginx, MariaDB, PHP}. A simple search brings in a few on the first page of results, so I won't list any links here.
Installing nginx, mariadb and php on Linux is quite straight forward and nicely documented in several of those pages. However, they all end with the following to install Wordpress using something like:
$ wget https://wordpress.org/latest.tar.gz
i.e. downloading it directly from wordpress.org. I use Debian on my servers and prefer to install packages using Debian's native package manager, apt. This way, they get all security updates using a single command.
So, I thought why not try to install Wordpress "The Debian way". My attempt to do that showed that it requires apache2 and some other apache2 modules too! This was odd when nginx-full, which provides httpd, was already installed.
user1@debian$ sudo apt install wordpress
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
apache2 apache2-bin apache2-data apache2-utils javascript-common libao-common libao4
libapache2-mod-php libapache2-mod-php7.0 libapr1 libaprutil1 libaprutil1-dbd-sqlite3
libaprutil1-ldap libflac8 libjs-cropper libjs-prototype libjs-scriptaculous liblua5.2-0 libogg0
libphp-phpmailer libspeex1 libvorbis0a libvorbisenc2 libvorbisfile3 php-gd php-getid3 php7.0-gd
ssl-cert vorbis-tools wordpress-l10n wordpress-theme-twentyseventeen
Suggested packages:
www-browser apache2-doc apache2-suexec-pristine | apache2-suexec-custom libasound2 libaudio2
libesd0 | libesd-alsa0 libpulse0 libsndio6.1 php-pear php-league-oauth2-client
php-league-oauth2-google speex openssl-blacklist php-ssh2
The following NEW packages will be installed:
apache2 apache2-bin apache2-data apache2-utils javascript-common libao-common libao4
libapache2-mod-php libapache2-mod-php7.0 libapr1 libaprutil1 libaprutil1-dbd-sqlite3
libaprutil1-ldap libflac8 libjs-cropper libjs-prototype libjs-scriptaculous liblua5.2-0 libogg0
libphp-phpmailer libspeex1 libvorbis0a libvorbisenc2 libvorbisfile3 php-gd php-getid3 php7.0-gd
ssl-cert vorbis-tools wordpress wordpress-l10n wordpress-theme-twentyseventeen
0 upgraded, 32 newly installed, 0 to remove and 0 not upgraded.
Need to get 14.3 MB of archives.
After this operation, 71.3 MB of additional disk space will be used.
Do you want to continue? [Y/n] n
Abort!
If you look at Wordpress package details (apt show wordpress), it depends on "libapache2-mod-php or libapach2-mod-php5 or php or php5". Also, when installing php, we installed packages specifically php-fpm and php-mysql, it didn't install the packages php or php5. As the dependency list has libapache2-mod-php listed first, it asks for other dependent packages which inturn recommend apache2. To fix this, install package php and then install wordpress, and no apache2 packages will be required.
user1@debian$ sudo apt-get install php wordpress
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
javascript-common libao-common libao4 libflac8 libjs-cropper libjs-prototype libjs-scriptaculous
libogg0 libphp-phpmailer libspeex1 libvorbis0a libvorbisenc2 libvorbisfile3 php-gd php-getid3
php7.0 php7.0-gd vorbis-tools wordpress-l10n wordpress-theme-twentyseventeen
Suggested packages:
libasound2 libaudio2 libesd0 | libesd-alsa0 libpulse0 libsndio6.1 php-league-oauth2-client
php-league-oauth2-google speex php-ssh2
The following NEW packages will be installed:
javascript-common libao-common libao4 libflac8 libjs-cropper libjs-prototype libjs-scriptaculous
libogg0 libphp-phpmailer libspeex1 libvorbis0a libvorbisenc2 libvorbisfile3 php php-gd
php-getid3 php7.0 php7.0-gd vorbis-tools wordpress wordpress-l10n
wordpress-theme-twentyseventeen
0 upgraded, 22 newly installed, 0 to remove and 0 not upgraded.
Need to get 11.0 MB of archives.
After this operation, 59.9 MB of additional disk space will be used.
Do you want to continue? [Y/n]
You can continue with the rest of the configuration of Wordpress with help from https://wiki.debian.org/WordPress (configuration steps to be posted). Oh, and don't forget to setup HTTPS using certbot to use the SSL certificates from Let's Encrypt.
* the investigation several searches on the web, but the only place where I got helpful information was the good old lists.debian.org.
Note: all this was on a Debian 8.0/Stretch VM
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