0. はじめに
過去の記事でCentOS 8にRails 6 + MySQL 8環境を構築する手順を書いたが、RailsアプリにWordPressを共存させて、動的コンテンツと静的コンテンツを分けて、アプリ開発者に依存せずにマーケティング担当者などが静的コンテンツやBlogを更新できるようにしたので、その手順を記しておく。
このリンクで＄100もらえます
私もリファラー経由でアカウントを作ったので＄100もらえました。これで最初にあれやこれや試すのは無料でできます。
1. EPEL と REMI リポジトリを追加
$ sudo yum -y install https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm
途中省略
Installed:
epel-release-8-8.el8.noarch
Complete!
$ sudo yum -y install https://rpms.remirepo.net/enterprise/remi-release-8.rpm
途中省略
Installed:
remi-release-8.1-2.el8.remi.noarch
Complete!
2. PHP 7.4をCentOS 8にインストール
(1) dnfユーティリティをインストール
$ sudo dnf -y install dnf-utils
$ sudo dnf module install php:remi-7.4
Last metadata expiration check: 0:00:31 ago on Sun 31 May 2020 04:17:52 AM UTC.
Dependencies resolved.
The operation would result in switching of module 'php' stream '7.2' to stream 'remi-7.4'
Error: It is not possible to switch enabled streams of a module.
It is recommended to remove all installed content from the module, and reset the module using 'dnf module reset <module_name>' command. After you reset the module, you can install the other stream.
エラーになったので、メッセージに従ってphp:remi-7.4をリセット。
$ sudo dnf module reset php:remi-7.4
Last metadata expiration check: 0:02:02 ago on Sun 31 May 2020 04:17:52 AM UTC.
Only module name is required. Ignoring unneeded information in argument: 'php:remi-7.4'
Dependencies resolved.
================================================================================================================================================================================
Package Architecture Version Repository Size
================================================================================================================================================================================
Resetting modules:
php
Transaction Summary
================================================================================================================================================================================
Is this ok [y/N]: y
Complete!
再実行
$ sudo dnf module install php:remi-7.4
Last metadata expiration check: 0:03:32 ago on Sun 31 May 2020 04:17:52 AM UTC.
Dependencies resolved.
================================================================================================================================================================================
Package Architecture Version Repository Size
================================================================================================================================================================================
Installing group/module packages:
php-cli x86_64 7.4.6-1.el8.remi remi-modular 4.6 M
php-common x86_64 7.4.6-1.el8.remi remi-modular 1.2 M
php-fpm x86_64 7.4.6-1.el8.remi remi-modular 1.6 M
php-json x86_64 7.4.6-1.el8.remi remi-modular 74 k
php-mbstring x86_64 7.4.6-1.el8.remi remi-modular 527 k
php-xml x86_64 7.4.6-1.el8.remi remi-modular 215 k
Installing dependencies:
httpd-filesystem noarch 2.4.37-16.module_el8.1.0+256+ae790463 AppStream 35 k
oniguruma x86_64 6.8.2-1.el8 AppStream 188 k
Installing weak dependencies:
nginx-filesystem noarch 1:1.14.1-9.module_el8.0.0+184+e34fea82 AppStream 24 k
Installing module profiles:
php/common
Enabling module streams:
nginx 1.14
php remi-7.4
Transaction Summary
================================================================================================================================================================================
Install 9 Packages
Total download size: 8.4 M
Installed size: 46 M
Is this ok [y/N]: y
(2) インストール成功を確認したら、dnf updateで更新。時間がかかるので、しばらく待つ。
$ sudo dnf update
いくつかインストール可否の[y/N]を聞かれるのでｙでインストールするが、細かな画面表示は省略。
Installed:
kernel-4.18.0-147.8.1.el8_1.x86_64 kernel-core-4.18.0-147.8.1.el8_1.x86_64 kernel-devel-4.18.0-147.8.1.el8_1.x86_64 kernel-modules-4.18.0-147.8.1.el8_1.x86_64
Complete!
(3) EPEL and Remiが成功したら、PHPモジュールのリストを確認。
$ sudo dnf module list php
$ sudo dnf module list php
Last metadata expiration check: 0:01:28 ago on Sun 31 May 2020 04:43:51 AM UTC.
CentOS-8 - AppStream
Name Stream Profiles Summary
php 7.2 [d] common [d], devel, minimal PHP scripting language
php 7.3 common, devel, minimal PHP scripting language
Remi's Modular repository for Enterprise Linux 8 - x86_64
Name Stream Profiles Summary
php remi-7.2 common [d], devel, minimal PHP scripting language
php remi-7.3 common [d], devel, minimal PHP scripting language
php remi-7.4 [e] common [d] [i], devel, minimal PHP scripting language
Hint: [d]efault, [e]nabled, [x]disabled, [i]nstalled
(4) 最新のPHPストリームを使うように構成する。
$ sudo dnf module enable php:remi-7.4
Last metadata expiration check: 0:01:21 ago on Sun 31 May 2020 04:43:51 AM UTC.
Dependencies resolved.
Nothing to do.
Complete!
(5) PHPインストール
$ sudo dnf install php php-cli php-common
Last metadata expiration check: 0:01:51 ago on Sun 31 May 2020 04:43:51 AM UTC.
Package php-cli-7.4.6-1.el8.remi.x86_64 is already installed.
Package php-common-7.4.6-1.el8.remi.x86_64 is already installed.
Dependencies resolved.
================================================================================================================================================================================
Package Architecture Version Repository Size
================================================================================================================================================================================
Installing:
php x86_64 7.4.6-1.el8.remi remi-modular 3.0 M
Installing dependencies:
centos-logos-httpd noarch 80.5-2.el8 AppStream 24 k
httpd x86_64 2.4.37-16.module_el8.1.0+256+ae790463 AppStream 1.7 M
mod_http2 x86_64 1.11.3-3.module_el8.1.0+213+acce2796 AppStream 158 k
libsodium x86_64 1.0.18-2.el8 epel 162 k
Installing weak dependencies:
php-opcache x86_64 7.4.6-1.el8.remi remi-modular 334 k
php-pdo x86_64 7.4.6-1.el8.remi remi-modular 143 k
php-sodium x86_64 7.4.6-1.el8.remi remi-modular 87 k
Transaction Summary
================================================================================================================================================================================
Install 8 Packages
Total download size: 5.6 M
Installed size: 19 M
Is this ok [y/N]: y
途中省略
Installed:
php-7.4.6-1.el8.remi.x86_64 php-opcache-7.4.6-1.el8.remi.x86_64 php-pdo-7.4.6-1.el8.remi.x86_64
php-sodium-7.4.6-1.el8.remi.x86_64 centos-logos-httpd-80.5-2.el8.noarch httpd-2.4.37-16.module_el8.1.0+256+ae790463.x86_64
mod_http2-1.11.3-3.module_el8.1.0+213+acce2796.x86_64 libsodium-1.0.18-2.el8.x86_64
Complete!
(6) PHPのバージョンを確認。
PHP 7.4.6がインストールされた。
$ php -v
PHP 7.4.6 (cli) (built: May 12 2020 08:09:15) ( NTS )
Copyright (c) The PHP Group
Zend Engine v3.4.0, Copyright (c) Zend Technologies
with Zend OPcache v7.4.6, Copyright (c), by Zend Technologies
3. PHP拡張をインストール
WordPressに必要なPHP拡張をインストールする。
$ sudo yum install -y php-mysqlnd php-dom php-simplexml php-xml php-xmlreader php-curl php-exif php-ftp php-gd php-iconv php-json php-mbstring php-posix php-sockets php-tokenizer
途中省略
Installed:
php-gd-7.4.6-1.el8.remi.x86_64 php-mysqlnd-7.4.6-1.el8.remi.x86_64 php-process-7.4.6-1.el8.remi.x86_64
Complete!
4. WordPressのインストール
(1) WordPress用のDB作成
既にMySQLは動いているのでDBだけ作成しておく。
$ mysql -u root -p
DB名はwordpressとした。
mysql> CREATE DATABASE wordpress;
WordPressのユーザーはwpuserとした。
mysql> CREATE USER 'wpuser'@'localhost' IDENTIFIED BY 'あなたのパスワード';
mysql> GRANT ALL PRIVILEGES ON wordpress.* TO 'wpuser'@'localhost';
mysql> exit
Bye
(2) WordPressのダウンロード
$ pwd
/var/www
$ sudo curl -O https://wordpress.org/latest.tar.gz
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 11.6M 100 11.6M 0 0 9.9M 0 0:00:01 0:00:01 --:--:-- 9.9M
$ sudo tar -zxvf latest.tar.gz
$ ls -l
total 11964
drwxr-xr-x. 2 root root 4096 Dec 23 20:47 cgi-bin
drwxr-x---. 5 deploy www 4096 May 1 01:14 Railsアプリディレクトリ
drwxr-xr-x. 2 root root 4096 Dec 23 20:47 html
-rw-r--r--. 1 root root 12234700 May 31 05:17 latest.tar.gz
drwxr-xr-x. 5 nobody nobody 4096 Apr 29 18:58 wordpress
$ sudo chown -R deploy.www wordpress
(4) WordPressを構成
$ cd wordpress
$ cp -p wp-config-sample.php wp-config.php
wp-config.php
// ** MySQL settings - You can get this info from your web host ** //
/** The name of the database for WordPress */
define( 'DB_NAME', 'wordpress' );
/** MySQL database username */
define( 'DB_USER', 'wpuser' );
/** MySQL database password */
define( 'DB_PASSWORD', 'あなたのパスワード' );
/** MySQL hostname */
define( 'DB_HOST', 'localhost' );
5. nginxの設定変更
さて、ここからが重要です。要するにnginxに hogehoge.com/wordpress へのアクセスはWordPressに処理させ、それ以外はRailsに処理させるようにすれば良いので、理屈としては簡単なのですが、注意しないと何も表示されなくなってしまいます。
以下のConfigは/etc/nginx/nginx.confでインクルードしています。
/etc/nginx/sites-available/あなたの任意のファイル名
# example.com/wp will be processed by PHP
location ^~ /wp {
alias /var/www/wordpress;
index index.php index.html index.htm;
try_files $uri $uri/ /wp/index.php?$args;
location ~ \.php$ {
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
include fastcgi_params;
fastcgi_param SCRIPT_FILENAME $request_filename;
}
}
参考記事
How To Install PHP 7.4 on CentOS 8 / RHEL 8
How to Install PHP 7.4 on CentOS 8
How To Install WordPress with Nginx on CentOS 8 / RHEL 8