simplify installer and remove parsing from read config

install/config/config.yml

@@ -4,7 +4,6 @@
 app:
     dashboard_url: "https://{{.DashboardDomain}}"
     log_level: "info"
-    save_logs: false
 
 domains:
     domain1:
@@ -12,40 +11,17 @@ domains:
         cert_resolver: "letsencrypt"
 
 server:
-    external_port: 3000
-    internal_port: 3001
-    next_port: 3002
-    internal_hostname: "pangolin"
-    session_cookie_name: "p_session_token"
-    resource_access_token_param: "p_token"
-    resource_access_token_headers:
-        id: "P-Access-Token-Id"
-        token: "P-Access-Token"
-    resource_session_request_param: "p_session_request"
-    secret: {{.Secret}}
+    secret: "{{.Secret}}"
     cors:
         origins: ["https://{{.DashboardDomain}}"]
         methods: ["GET", "POST", "PUT", "DELETE", "PATCH"]
         allowed_headers: ["X-CSRF-Token", "Content-Type"]
         credentials: false
 
-traefik:
-    cert_resolver: "letsencrypt"
-    http_entrypoint: "web"
-    https_entrypoint: "websecure"
-
 gerbil:
     start_port: 51820
     base_endpoint: "{{.DashboardDomain}}"
-    use_subdomain: false
-    block_size: 24
-    site_block_size: 30
-    subnet_group: 100.89.137.0/20
 
-rate_limits:
-    global:
-        window_minutes: 1
-        max_requests: 500
 {{if .EnableEmail}}
 email:
     smtp_host: "{{.EmailSMTPHost}}"
@@ -57,7 +33,7 @@ email:
 
 flags:
     require_email_verification: {{.EnableEmail}}
-    disable_signup_without_invite: {{.DisableSignupWithoutInvite}}
-    disable_user_create_org: {{.DisableUserCreateOrg}}
+    disable_signup_without_invite: true
+    disable_user_create_org: false
     allow_raw_resources: true
     allow_base_domain_resources: true