feat: add ability to override the UI configuration with environment variables

backend/internal/common/env_config.go

@@ -25,6 +25,7 @@ type EnvConfigSchema struct {
 	Host                     string     `env:"HOST"`
 	MaxMindLicenseKey        string     `env:"MAXMIND_LICENSE_KEY"`
 	GeoLiteDBPath            string     `env:"GEOLITE_DB_PATH"`
+	UiConfigDisabled         bool       `env:"PUBLIC_UI_CONFIG_DISABLED"`
 }
 
 var EnvConfig = &EnvConfigSchema{
@@ -38,6 +39,7 @@ var EnvConfig = &EnvConfigSchema{
 	Host:                     "0.0.0.0",
 	MaxMindLicenseKey:        "",
 	GeoLiteDBPath:            "data/GeoLite2-City.mmdb",
+	UiConfigDisabled:         false,
 }
 
 func init() {

backend/internal/common/errors.go

@@ -184,3 +184,10 @@ func (e *OidcAccessDeniedError) Error() string {
 }
 
 func (e *OidcAccessDeniedError) HttpStatusCode() int { return http.StatusForbidden }
+
+type UiConfigDisabledError struct{}
+
+func (e *UiConfigDisabledError) Error() string {
+	return "The configuration can't be changed since the UI configuration is disabled"
+}
+func (e *UiConfigDisabledError) HttpStatusCode() int { return http.StatusForbidden }