feat: Add RESTART_CONTROLLER_ENABLED_LABEL constant (#1139)

* feat: Add RESTART_CONTROLLER_ENABLED_LABEL constant

* changelog

Author: sbernauer

crates/stackable-operator/CHANGELOG.md

@@ -7,6 +7,7 @@ All notable changes to this project will be documented in this file.
 ### Added
 
 - BREAKING: Add `objectOverrides` field to `ListenerSpec` ([#1136]).
+- Added `stackable_operator::constants::RESTART_CONTROLLER_ENABLED_LABEL` constant, which represents the `restarter.stackable.tech/enabled=true` label ([#1139]).
 
 ### Changed
 
@@ -15,6 +16,7 @@ All notable changes to this project will be documented in this file.
 
 [#1135]: https://github.com/stackabletech/operator-rs/pull/1135
 [#1136]: https://github.com/stackabletech/operator-rs/pull/1136
+[#1139]: https://github.com/stackabletech/operator-rs/pull/1139
 
 ## [0.101.2] - 2026-01-07
 

crates/stackable-operator/src/constants/mod.rs

@@ -1 +1,10 @@
+use std::sync::LazyLock;
+
+use crate::kvp::Label;
+
 pub mod secret;
+
+pub static RESTART_CONTROLLER_ENABLED_LABEL: LazyLock<Label> = LazyLock::new(|| {
+    Label::try_from(("restarter.stackable.tech/enabled", "true"))
+        .expect("static label is always valid")
+});