introduce MULTISITE env variable to change .htaccess

.env.sample

@@ -41,6 +41,7 @@ SECRET_DB_PASSWORD_VERSION=v1
 
 # Multisite phase 2 (see README)
 #WORDPRESS_CONFIG_EXTRA="define('MULTISITE', true); define('SUBDOMAIN_INSTALL', true); define('DOMAIN_CURRENT_SITE', '${DOMAIN}'); define('PATH_CURRENT_SITE', '/');	define('SITE_ID_CURRENT_SITE', 1); define('BLOG_ID_CURRENT_SITE', 1); define('FORCE_SSL_ADMIN', true ); define('COOKIE_DOMAIN', \$_SERVER['HTTP_HOST']);"
+#MULTISITE=subfolder # either 'subfolder' or 'subdomain'
 
 # Local SMTP relay
 #COMPOSE_FILE="$COMPOSE_FILE:compose.mailrelay.yml"

abra.sh

@@ -2,6 +2,7 @@ export PHP_UPLOADS_CONF_VERSION=v3
 export ENTRYPOINT_CONF_VERSION=v5
 export ENTRYPOINT_MAILRELAY_CONF_VERSION=v2
 export MSMTP_CONF_VERSION=v4
+export HTACCESS_CONF_VERSION=v1
 
 wp() {
     su -p www-data -s /bin/bash -c "/usr/local/bin/wp $@"

compose.yml

@@ -31,6 +31,8 @@ services:
       - source: entrypoint_conf
         target: /docker-entrypoint.sh
         mode: 0555
+      - source: htaccess_conf
+        target: /var/www/html/.htaccess
     entrypoint: /docker-entrypoint.sh
     depends_on:
       - db
@@ -107,3 +109,7 @@ configs:
   php_uploads_conf:
     name: ${STACK_NAME}_php_uploads_conf_${PHP_UPLOADS_CONF_VERSION}
     file: uploads.ini
+  htaccess_conf:
+    name: ${STACK_NAME}_htaccess_conf_${HTACCESS_CONF_VERSION}
+    file: htaccess.tmpl
+    template_driver: golang

htaccess.tmpl

@@ -0,0 +1,57 @@
+{{ if eq (env "MULTISITE") "" -}}
+# BEGIN WordPress
+
+RewriteEngine On
+RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
+RewriteBase /
+RewriteRule ^index\.php$ - [L]
+RewriteCond %{REQUEST_FILENAME} !-f
+RewriteCond %{REQUEST_FILENAME} !-d
+RewriteRule . /index.php [L]
+
+# END WordPress
+{{- end -}}
+
+{{- if eq (env "MULTISITE") "subfolder" -}}
+# BEGIN WordPress Multisite
+# Using subfolder network type: https://wordpress.org/documentation/article/htaccess/#multisite
+
+RewriteEngine On
+RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
+RewriteBase /
+RewriteRule ^index\.php$ - [L]
+
+# add a trailing slash to /wp-admin
+RewriteRule ^([_0-9a-zA-Z-]+/)?wp-admin$ $1wp-admin/ [R=301,L]
+
+RewriteCond %{REQUEST_FILENAME} -f [OR]
+RewriteCond %{REQUEST_FILENAME} -d
+RewriteRule ^ - [L]
+RewriteRule ^([_0-9a-zA-Z-]+/)?(wp-(content|admin|includes).*) $2 [L]
+RewriteRule ^([_0-9a-zA-Z-]+/)?(.*\.php)$ $2 [L]
+RewriteRule . index.php [L]
+
+# END WordPress Multisite
+{{- end -}}
+
+{{- if eq (env "MULTISITE") "subdomain" -}}
+# BEGIN WordPress Multisite
+# Using subdomain network type: https://wordpress.org/documentation/article/htaccess/#multisite
+
+RewriteEngine On
+RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
+RewriteBase /
+RewriteRule ^index\.php$ - [L]
+
+# add a trailing slash to /wp-admin
+RewriteRule ^wp-admin$ wp-admin/ [R=301,L]
+
+RewriteCond %{REQUEST_FILENAME} -f [OR]
+RewriteCond %{REQUEST_FILENAME} -d
+RewriteRule ^ - [L]
+RewriteRule ^(wp-(content|admin|includes).*) $1 [L]
+RewriteRule ^(.*\.php)$ $1 [L]
+RewriteRule . index.php [L]
+
+# END WordPress Multisite
+{{- end }}