diff --git a/api/openapi-spec/swagger.json b/api/openapi-spec/swagger.json
index 503ed1be274..dce7d38992e 100644
--- a/api/openapi-spec/swagger.json
+++ b/api/openapi-spec/swagger.json
@@ -83370,6 +83370,11 @@
       "items": {
        "$ref": "#/definitions/io.k8s.api.core.v1.ContainerPort"
       },
+      "x-kubernetes-list-map-keys": [
+       "containerPort",
+       "protocol"
+      ],
+      "x-kubernetes-list-type": "map",
       "x-kubernetes-patch-merge-key": "containerPort",
       "x-kubernetes-patch-strategy": "merge"
      },
diff --git a/staging/src/k8s.io/api/core/v1/generated.proto b/staging/src/k8s.io/api/core/v1/generated.proto
index fa32f76f7bd..cd1cf67aa8e 100644
--- a/staging/src/k8s.io/api/core/v1/generated.proto
+++ b/staging/src/k8s.io/api/core/v1/generated.proto
@@ -606,6 +606,9 @@ message Container {
   // +optional
   // +patchMergeKey=containerPort
   // +patchStrategy=merge
+  // +listType=map
+  // +listMapKey=containerPort
+  // +listMapKey=protocol
   repeated ContainerPort ports = 6;
 
   // List of sources to populate environment variables in the container.
diff --git a/staging/src/k8s.io/api/core/v1/types.go b/staging/src/k8s.io/api/core/v1/types.go
index 298af757dac..ca9211e3afa 100644
--- a/staging/src/k8s.io/api/core/v1/types.go
+++ b/staging/src/k8s.io/api/core/v1/types.go
@@ -2060,6 +2060,9 @@ type Container struct {
 	// +optional
 	// +patchMergeKey=containerPort
 	// +patchStrategy=merge
+	// +listType=map
+	// +listMapKey=containerPort
+	// +listMapKey=protocol
 	Ports []ContainerPort `json:"ports,omitempty" patchStrategy:"merge" patchMergeKey:"containerPort" protobuf:"bytes,6,rep,name=ports"`
 	// List of sources to populate environment variables in the container.
 	// The keys defined within a source must be a C_IDENTIFIER. All invalid keys