Add custom error pages and Nginx configuration for proxy module

- Introduced custom HTML error pages for various HTTP status codes (400, 401, 403, 404, 408, 429, 500, 502, 503, 504) in the proxy module.
- Created a .gitignore file to exclude non-HTML files in the error resources directory.
- Updated Nginx configuration to serve custom error pages for upstream errors.
- Added new Nginx configuration templates for handling HTTP and stream protocols.
- Implemented Wireguard configuration templates and associated variables for secure connections.
- Established Kubernetes resources for Stunnel and Wireguard, including deployment, service accounts, and config maps.
- Defined variables for the Stunnel and Wireguard modules to facilitate configuration.
- Created a new Wol Proxy module with Kubernetes resources for deployment and service management.

ansible/host_vars/prod-01.alexpires.me.yml

@@ -60,7 +60,7 @@ ufw_outgoing_traffic:
   - 16443 # Kube API Server
   - 4443
   - 9443
-  - 995 # POP3S
+  - 993 # IMAPS
 
 ufw_default_forward_policy: "ACCEPT"
 
@@ -96,7 +96,15 @@ fail2ban_jails:
     filter: "postfix-k8s"
     logpath: "/var/log/postfix/current"
     maxretry: 3
-    findtime: 18000
+    findtime: 600
+    bantime: -1
+  dovecot:
+    enabled: true
+    port: "imap,imaps,pop3,pop3s"
+    filter: "dovecot-k8s"
+    logpath: "/var/log/dovecot/info.log"
+    maxretry: 3
+    findtime: 600
     bantime: -1
 
 fail2ban_filters:
@@ -104,6 +112,10 @@ fail2ban_filters:
     Definition:
       failregex: "^.*?postfix/smtps/smtpd\\[\\d+\\]:.*\\[<HOST>\\]: SASL ((?i)LOGIN|PLAIN|(?:CRAM|DIGEST)-MD5) authentication failed.*$"
       ignoreregex: ""
+  dovecot-k8s:
+    Definition:
+      failregex: "(?: pop3-login|imap-login): .*(?:Authentication failure|Aborted login \\(auth failed|Aborted login \\(tried to use disabled|Disconnected \\(auth failed|Aborted login \\(\\d+ authentication attempts).*rip=`<HOST>"
+      ignoreregex: ""
 
 # aide
 install_aide: true