feat: add compact placement feature for node pools (#3636)

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chore: disallow "transport=rest" for services where numeric enums are not confirmed to be supported (except in PHP and Java)
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BEGIN_NESTED_COMMIT
feat: add a FastSocket API
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END_NESTED_COMMIT
BEGIN_NESTED_COMMIT
feat: add a FastSocket API
PiperOrigin-RevId: 491259489

Source-Link: https://togithub.com/googleapis/googleapis/commit/39bcdf411c9c099412ddf6b4247f50352d83e5ad

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END_NESTED_COMMITBEGIN_NESTED_COMMITfeat: add compact placement feature for node pools
Use a compact placement policy to specify that nodes within the node pool should be placed in closer physical proximity to each other within a zone. Having nodes closer to each other can reduce network latency between nodes, which can be useful for tightly-coupled batch workloads.

PiperOrigin-RevId: 488490422

Source-Link: https://togithub.com/googleapis/googleapis/commit/452324bf65d077decf455a1ef86eadf867962a66

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END_NESTED_COMMIT

Author: gcf-owl-bot[bot]

packages/google-container/README.md

@@ -759,6 +759,9 @@ message NodeConfig {
   // All the nodes in the node pool will be Confidential VM once enabled.
   ConfidentialNodes confidential_nodes = 35;
 
+  // Enable or disable NCCL fast socket for the node pool.
+  optional FastSocket fast_socket = 36;
+
   // The resource labels for the node pool to use to annotate any related
   // Google Compute Engine resources.
   map<string, string> resource_labels = 37;
@@ -1278,9 +1281,8 @@ message BinaryAuthorization {
   // anything other than EVALUATION_MODE_UNSPECIFIED, this field is ignored.
   bool enabled = 1 [deprecated = true];
 
-  // Mode of operation for binauthz policy evaluation. Currently the only
-  // options are equivalent to enable/disable. If unspecified, defaults to
-  // DISABLED.
+  // Mode of operation for binauthz policy evaluation. If unspecified, defaults
+  // to DISABLED.
   EvaluationMode evaluation_mode = 2;
 }
 
@@ -2284,6 +2286,9 @@ message UpdateNodePoolRequest {
   // Enable or disable gvnic on the node pool.
   VirtualNIC gvnic = 29;
 
+  // Enable or disable NCCL fast socket for the node pool.
+  FastSocket fast_socket = 31;
+
   // Logging configuration.
   NodePoolLoggingConfig logging_config = 32;
 
@@ -2994,6 +2999,23 @@ message NodePool {
     ERROR = 6;
   }
 
+  // PlacementPolicy defines the placement policy used by the node pool.
+  message PlacementPolicy {
+    // Type defines the type of placement policy.
+    enum Type {
+      // TYPE_UNSPECIFIED specifies no requirements on nodes
+      // placement.
+      TYPE_UNSPECIFIED = 0;
+
+      // COMPACT specifies node placement in the same availability domain to
+      // ensure low communication latency.
+      COMPACT = 1;
+    }
+
+    // The type of placement.
+    Type type = 1;
+  }
+
   // The name of the node pool.
   string name = 1;
 
@@ -3063,6 +3085,9 @@ message NodePool {
   // Upgrade settings control disruption and speed of the upgrade.
   UpgradeSettings upgrade_settings = 107;
 
+  // Specifies the node placement policy.
+  PlacementPolicy placement_policy = 108;
+
   // Output only. [Output only] Update info contains relevant information during a node
   // pool update.
   UpdateInfo update_info = 109 [(google.api.field_behavior) = OUTPUT_ONLY];
@@ -4196,6 +4221,12 @@ message VirtualNIC {
   bool enabled = 1;
 }
 
+// Configuration of Fast Socket feature.
+message FastSocket {
+  // Whether Fast Socket features are enabled in the node pool.
+  bool enabled = 1;
+}
+
 // PrivateIPv6GoogleAccess controls whether and how the pods can communicate
 // with Google Services through gRPC over IPv6.
 enum PrivateIPv6GoogleAccess {