Add Caddy Server Support Alongside Nginx (#600)

* added enum

* add config for caddy

* add svg icon

* add caddy service class

* wip

* install caddy

* create base Caddyfile with common snippets

* Create a systemd service to run Caddy in the background.

* create uninstall file

* wip

* create path

* create vhost

* get vhost

* delete site

* add php version change file

* add custom ssl

* create redirect file

* add vhost for caddy site & load balancer

* update svg

* fix caddy icon

* fix style

* add systemctl reload method

* Reload systemd after modifying the Caddy service file.

* add caddy

* added tests

* format with pint

* prevent multiple web server installations

* added error log & access log

(cherry picked from commit 2318e1b1df)

resources/views/ssh/services/webserver/caddy/caddy.blade.php

@@ -0,0 +1,59 @@
+{
+	# Global Errors Log
+        log {
+                output file /var/log/caddy/errors.log {
+                        roll_size 100MB
+                    	roll_keep 10
+                    	roll_keep_for 720h # 30 days
+		}
+                format json {
+                        time_format iso8601
+                }
+		level ERROR
+                exclude http.log.access
+        }
+}
+
+# Common snippets
+(access_log) {
+        log {
+                output file /var/log/caddy/{args[0]}-access.log {
+                        roll_size 100MB
+                        roll_keep 10
+                        roll_keep_for 720h # 30 days
+                }
+                format json {
+                        time_format iso8601
+                }
+        }
+}
+
+(security_headers) {
+        header {
+                # Remove server and software information
+                -Server
+                -X-Powered-By
+                -Via
+
+                # Security headers
+                Strict-Transport-Security "max-age=31536000; includeSubDomains; preload"
+                X-Content-Type-Options "nosniff"
+                X-Frame-Options "SAMEORIGIN"
+                Referrer-Policy "strict-origin-when-cross-origin"
+                X-XSS-Protection "1; mode=block"
+                Content-Security-Policy "upgrade-insecure-requests"
+
+                # Enable compression
+                defer
+        }
+}
+
+(compression) {
+        encode {
+                gzip 6
+                zstd
+                minimum_length 1024
+        }
+}
+
+import sites-enabled/*