initial impl of running export/import without serving

quarkus/config-api/src/main/java/org/keycloak/config/HttpOptions.java

@@ -100,4 +100,11 @@ public class HttpOptions {
             .description("The type of the trust store file. " +
                     "If not given, the type is automatically detected based on the file name.")
             .build();
+
+    public static final Option<Boolean> HTTP_SERVER_ENABLED = new OptionBuilder<>("http-server-enabled", Boolean.class)
+            .category(OptionCategory.HTTP)
+            .hidden()
+            .description("Enables or disables the HTTP/s and Socket serving.")
+            .defaultValue(Boolean.TRUE)
+            .build();
 }

quarkus/runtime/src/main/java/org/keycloak/quarkus/runtime/configuration/mappers/HttpPropertyMappers.java

@@ -27,6 +27,10 @@ final class HttpPropertyMappers {
                         .transformer(HttpPropertyMappers::getHttpEnabledTransformer)
                         .paramLabel(Boolean.TRUE + "|" + Boolean.FALSE)
                         .build(),
+                fromOption(HttpOptions.HTTP_SERVER_ENABLED)
+                        .to("quarkus.http.host-enabled")
+                        .paramLabel(Boolean.TRUE + "|" + Boolean.FALSE)
+                        .build(),
                 fromOption(HttpOptions.HTTP_HOST)
                         .to("quarkus.http.host")
                         .paramLabel("host")

quarkus/runtime/src/main/resources/META-INF/keycloak.conf

@@ -19,6 +19,7 @@ metrics-enabled=false
 
 # The default configuration when running in import or export mode
 %import_export.http-enabled=true
+%import_export.http-server-enabled=false
 %import_export.hostname-strict=false
 %import_export.hostname-strict-https=false