feat: enable external access to gitea (#344)

- add git.unkin.net to certbot
- export haproxy resources for gitea
- add be_gitea to haproxy, import the certbot cert
- update the ROOT_URL for gitea instances

Reviewed-on: #344

hieradata/country/au/region/syd1/infra/halb/haproxy2.yaml

@@ -7,6 +7,7 @@ profiles::haproxy::dns::vrrp_cnames:
   - readarr.main.unkin.net
   - prowlarr.main.unkin.net
   - nzbget.main.unkin.net
+  - git.unkin.net
 
 profiles::haproxy::mappings:
   fe_http:
@@ -22,6 +23,7 @@ profiles::haproxy::mappings:
       - 'nzbget.main.unkin.net be_nzbget'
       - 'jellyfin.main.unkin.net be_jellyfin'
       - 'fafflix.unkin.net be_jellyfin'
+      - 'git.unkin.net be_gitea'
   fe_https:
     ensure: present
     mappings:
@@ -35,6 +37,7 @@ profiles::haproxy::mappings:
       - 'nzbget.main.unkin.net be_nzbget'
       - 'jellyfin.main.unkin.net be_jellyfin'
       - 'fafflix.unkin.net be_jellyfin'
+      - 'git.unkin.net be_gitea'
 
 profiles::haproxy::frontends:
   fe_http:
@@ -53,6 +56,7 @@ profiles::haproxy::frontends:
         - 'acl_nzbget req.hdr(host) -i nzbget.main.unkin.net'
         - 'acl_jellyfin req.hdr(host) -i jellyfin.main.unkin.net'
         - 'acl_fafflix req.hdr(host) -i fafflix.unkin.net'
+        - 'acl_gitea req.hdr(host) -i git.unkin.net'
         - 'acl_internalsubnets src 198.18.0.0/16 10.10.12.0/24'
       use_backend:
         - "%[req.hdr(host),lower,map(/etc/haproxy/fe_https.map,be_default)]"
@@ -68,6 +72,7 @@ profiles::haproxy::frontends:
         - 'set-header X-Frame-Options DENY if acl_nzbget'
         - 'set-header X-Frame-Options DENY if acl_jellyfin'
         - 'set-header X-Frame-Options DENY if acl_fafflix'
+        - 'set-header X-Frame-Options DENY if acl_gitea'
         - 'set-header X-Content-Type-Options nosniff'
         - 'set-header X-XSS-Protection 1;mode=block'
 
@@ -215,6 +220,22 @@ profiles::haproxy::backends:
         - set-header X-Forwarded-Port %[dst_port]
         - add-header X-Forwarded-Proto https if { dst_port 443 }
       redirect: 'scheme https if !{ ssl_fc }'
+  be_gitea:
+    description: Backend for gitea cluster
+    collect_exported: false # handled in custom function
+    options:
+      balance: roundrobin
+      option:
+        - httpchk GET /
+        - forwardfor
+        - http-keep-alive
+        - prefer-last-server
+      cookie: SRVNAME insert indirect nocache
+      http-reuse: always
+      http-request:
+        - set-header X-Forwarded-Port %[dst_port]
+        - add-header X-Forwarded-Proto https if { dst_port 443 }
+      redirect: 'scheme https if !{ ssl_fc }'
 
 profiles::haproxy::certlist::enabled: true
 profiles::haproxy::certlist::certificates:
@@ -227,6 +248,7 @@ profiles::haproxy::certlist::certificates:
   - /etc/pki/tls/letsencrypt/prowlarr.main.unkin.net/fullchain_combined.pem
   - /etc/pki/tls/letsencrypt/nzbget.main.unkin.net/fullchain_combined.pem
   - /etc/pki/tls/letsencrypt/fafflix.unkin.net/fullchain_combined.pem
+  - /etc/pki/tls/letsencrypt/git.unkin.net/fullchain_combined.pem
   - /etc/pki/tls/vault/certificate.pem
 
 # additional altnames
@@ -252,3 +274,4 @@ certbot::client::domains:
   - prowlarr.main.unkin.net
   - nzbget.main.unkin.net
   - fafflix.unkin.net
+  - git.unkin.net