Add disable letsencrypt (#747)

Add NETBIRD_DISABLE_LETSENCRYPT support to explicit disable let's encrypt

Organize the setup.env.example variables into sections

Add traefik example

infrastructure_files/setup.env.example

@@ -2,7 +2,11 @@
 ##
 # Dashboard domain. e.g. app.mydomain.com
 NETBIRD_DOMAIN=""
-# OIDC configuration e.g., https://example.eu.auth0.com/.well-known/openid-configuration
+
+# -------------------------------------------
+# OIDC
+#  e.g., https://example.eu.auth0.com/.well-known/openid-configuration
+# -------------------------------------------
 NETBIRD_AUTH_OIDC_CONFIGURATION_ENDPOINT=""
 NETBIRD_AUTH_AUDIENCE=""
 # e.g. netbird-client
@@ -13,13 +17,21 @@ NETBIRD_AUTH_CLIENT_ID=""
 NETBIRD_USE_AUTH0="false"
 NETBIRD_AUTH_DEVICE_AUTH_PROVIDER="none"
 NETBIRD_AUTH_DEVICE_AUTH_CLIENT_ID=""
-# e.g. hello@mydomain.com
-NETBIRD_LETSENCRYPT_EMAIL=""
+
 # if your IDP provider doesn't support fragmented URIs, configure custom
 # redirect and silent redirect URIs, these will be concatenated into your NETBIRD_DOMAIN domain.
 # NETBIRD_AUTH_REDIRECT_URI="/peers"
 # NETBIRD_AUTH_SILENT_REDIRECT_URI="/add-peers"
 
+# -------------------------------------------
+# Letsencrypt
+# -------------------------------------------
+# Disable letsencrypt
+#  if disabled, cannot use HTTPS anymore and requires setting up a reverse-proxy to do it instead
+NETBIRD_DISABLE_LETSENCRYPT=false
+# e.g. hello@mydomain.com
+NETBIRD_LETSENCRYPT_EMAIL=""
+
 # Disable anonymous metrics collection, see more information at https://netbird.io/docs/FAQ/metrics-collection
 NETBIRD_DISABLE_ANONYMOUS_METRICS=false
 # DNS DOMAIN configures the domain name used for peer resolution. By default it is netbird.selfhosted