genpolicy: add default implementation for get_sandbox_name

- Provide default implementation for get_sandbox_name in K8sResource trait
- Remove default implementation from structs implementing the trait K8sResource

Fixes: #8960
Signed-off-by: Archana Choudhary <archana1@microsoft.com>

src/tools/genpolicy/src/config_map.rs

@@ -89,10 +89,6 @@ impl yaml::K8sResource for ConfigMap {
         self.doc_mapping = doc_mapping.clone();
     }
 
-    fn get_sandbox_name(&self) -> Option<String> {
-        panic!("Unsupported");
-    }
-
     fn get_container_mounts_and_storages(
         &self,
         _policy_mounts: &mut Vec<policy::KataMount>,

src/tools/genpolicy/src/list.rs

@@ -49,10 +49,6 @@ impl yaml::K8sResource for List {
         }
     }
 
-    fn get_sandbox_name(&self) -> Option<String> {
-        panic!("Unsupported");
-    }
-
     fn get_container_mounts_and_storages(
         &self,
         _policy_mounts: &mut Vec<policy::KataMount>,

src/tools/genpolicy/src/no_policy.rs

@@ -30,10 +30,6 @@ impl yaml::K8sResource for NoPolicyResource {
     ) {
     }
 
-    fn get_sandbox_name(&self) -> Option<String> {
-        panic!("Unsupported");
-    }
-
     fn get_container_mounts_and_storages(
         &self,
         _policy_mounts: &mut Vec<policy::KataMount>,

src/tools/genpolicy/src/secret.rs

@@ -78,10 +78,6 @@ impl yaml::K8sResource for Secret {
         self.doc_mapping = doc_mapping.clone();
     }
 
-    fn get_sandbox_name(&self) -> Option<String> {
-        panic!("Unsupported");
-    }
-
     fn get_container_mounts_and_storages(
         &self,
         _policy_mounts: &mut Vec<policy::KataMount>,

src/tools/genpolicy/src/yaml.rs

@@ -52,7 +52,10 @@ pub trait K8sResource {
     fn generate_policy(&self, agent_policy: &policy::AgentPolicy) -> String;
     fn serialize(&mut self, policy: &str) -> String;
 
-    fn get_sandbox_name(&self) -> Option<String>;
+    fn get_sandbox_name(&self) -> Option<String> {
+        panic!("Unsupported");
+    }
+
     fn get_namespace(&self) -> Option<String> {
         panic!("Unsupported");
     }