Use the server name as variable

installation/caddyfile-pleroma.example

@@ -22,7 +22,7 @@ social.domain.tld  {
     Referrer-Policy "same-origin"
     Strict-Transport-Security "max-age=31536000; includeSubDomains;"
     Expect-CT "enforce, max-age=2592000"
-    Content-Security-Policy "default-src 'none'; base-uri 'self'; form-action 'self'; frame-ancestors 'none'; img-src 'self' data: https:; media-src 'self' https:; style-src 'self' 'unsafe-inline'; font-src 'self'; script-src 'self'; connect-src 'self' wss://social.domain.tld; upgrade-insecure-requests;"
+    Content-Security-Policy "default-src 'none'; base-uri 'self'; form-action 'self'; frame-ancestors 'none'; img-src 'self' data: https:; media-src 'self' https:; style-src 'self' 'unsafe-inline'; font-src 'self'; script-src 'self'; connect-src 'self' wss://{host}; upgrade-insecure-requests;"
   }
 
   # If you do not want remote frontends to be able to access your Pleroma backend server, remove these lines.

installation/pleroma-apache.conf

 #Example configuration for when Apache httpd and Pleroma are on the same host.
-#Needed modules: headers proxy proxy_http proxy_wstunnel rewrite ssl
+#Needed modules: define headers proxy proxy_http proxy_wstunnel rewrite ssl
 #This assumes a Debian style Apache config. Put this in /etc/apache2/sites-available
 #Install your TLS certificate, possibly using Let's Encrypt.
 #Replace 'pleroma.example.com' with your instance's domain wherever it appears
 
-ServerName pleroma.example.com
+Define servername pleroma.example.com
+
+ServerName ${servername}
 ServerTokens Prod
 
 ErrorLog ${APACHE_LOG_DIR}/error.log
 CustomLog ${APACHE_LOG_DIR}/access.log combined
 
 <VirtualHost *:80>
-    Redirect permanent / https://pleroma.example.com
+    Redirect permanent / https://${servername}
 </VirtualHost>
 
 <VirtualHost *:443>
     SSLEngine on
-    SSLCertificateFile      /etc/letsencrypt/live/pleroma.example.com/cert.pem
-    SSLCertificateKeyFile   /etc/letsencrypt/live/pleroma.example.com/privkey.pem
-    SSLCertificateChainFile /etc/letsencrypt/live/pleroma.example.com/fullchain.pem
+    SSLCertificateFile      /etc/letsencrypt/live/${servername}/cert.pem
+    SSLCertificateKeyFile   /etc/letsencrypt/live/${servername}/privkey.pem
+    SSLCertificateChainFile /etc/letsencrypt/live/${servername}/fullchain.pem
 
     # Mozilla modern configuration, tweak to your needs
     SSLProtocol             all -SSLv3 -TLSv1 -TLSv1.1
@@ -31,7 +33,7 @@ CustomLog ${APACHE_LOG_DIR}/access.log combined
     Header always set X-Frame-Options "DENY"
     Header always set X-Content-Type-Options "nosniff"
     Header always set Referrer-Policy same-origin
-    Header always set Content-Security-Policy "default-src 'none'; base-uri 'self'; form-action 'self'; frame-ancestors 'none'; img-src 'self' data: https:; media-src 'self' https:; style-src 'self' 'unsafe-inline'; font-src 'self'; script-src 'self'; connect-src 'self' wss://pleroma.example.tld; upgrade-insecure-requests;"
+    Header always set Content-Security-Policy "default-src 'none'; base-uri 'self'; form-action 'self'; frame-ancestors 'none'; img-src 'self' data: https:; media-src 'self' https:; style-src 'self' 'unsafe-inline'; font-src 'self'; script-src 'self'; connect-src 'self' wss://${servername}; upgrade-insecure-requests;"
 
     # Uncomment this only after you get HTTPS working.
     # Header always set Strict-Transport-Security "max-age=31536000; includeSubDomains"
@@ -45,7 +47,7 @@ CustomLog ${APACHE_LOG_DIR}/access.log combined
     ProxyPass / http://localhost:4000/
     ProxyPassReverse / http://localhost:4000/
 
-    RequestHeader set Host "pleroma.example.com"
+    RequestHeader set Host ${servername}
     ProxyPreserveHost On
 </VirtualHost>
 
@@ -53,4 +55,4 @@ CustomLog ${APACHE_LOG_DIR}/access.log combined
 SSLUseStapling          on
 SSLStaplingResponderTimeout 5
 SSLStaplingReturnResponderErrors off
-SSLStaplingCache        shmcb:/var/run/ocsp(128000)
\ No newline at end of file
+SSLStaplingCache        shmcb:/var/run/ocsp(128000)

installation/pleroma.nginx

@@ -31,9 +31,9 @@ server {
     listen 443 ssl http2;
     ssl_session_timeout 5m;
 
-    ssl_trusted_certificate   /etc/letsencrypt/live/example.tld/fullchain.pem;
-    ssl_certificate           /etc/letsencrypt/live/example.tld/fullchain.pem;
-    ssl_certificate_key       /etc/letsencrypt/live/example.tld/privkey.pem;
+    ssl_trusted_certificate   /etc/letsencrypt/live/$server_name/fullchain.pem;
+    ssl_certificate           /etc/letsencrypt/live/$server_name/fullchain.pem;
+    ssl_certificate_key       /etc/letsencrypt/live/$server_name/privkey.pem;
 
     # Add TLSv1.0 to support older devices
     ssl_protocols TLSv1.2;
@@ -46,7 +46,7 @@ server {
     ssl_ecdh_curve X25519:prime256v1:secp384r1:secp521r1;
     ssl_stapling on;
     ssl_stapling_verify on;
-    
+
     server_name example.tld;
 
     gzip_vary on;
@@ -77,8 +77,8 @@ server {
         add_header X-Content-Type-Options "nosniff" always;
         add_header Referrer-Policy "same-origin" always;
         add_header X-Download-Options "noopen" always;
-        add_header Content-Security-Policy "default-src 'none'; base-uri 'self'; form-action *; frame-ancestors 'none'; img-src 'self' data: https:; media-src 'self' https:; style-src 'self' 'unsafe-inline'; font-src 'self'; script-src 'self'; connect-src 'self' wss://example.tld; upgrade-insecure-requests;" always;
-        
+        add_header Content-Security-Policy "default-src 'none'; base-uri 'self'; form-action *; frame-ancestors 'none'; img-src 'self' data: https:; media-src 'self' https:; style-src 'self' 'unsafe-inline'; font-src 'self'; script-src 'self'; connect-src 'self' wss://$server_name; upgrade-insecure-requests;" always;
+
         # Uncomment this only after you get HTTPS working.
         # add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;