Debounce the push of static lambda to once every 30s at most. (#42297)

GitOrigin-RevId: 5bd065ac276247cb34267656d2eaf2ea9e6e10f5

Author: nipunn1313

crates/common/src/knobs.rs

@@ -1050,9 +1050,15 @@ pub static FUNRUN_INITIAL_PERMIT_TIMEOUT: LazyLock<Duration> =
 /// larger than (N / 15) where N is the number of instances with lambdas.
 ///
 /// You can check go/num-instances-with-lambdas
-pub static AWS_LAMBDA_DEPLOY_SPLAY_SECONDS: LazyLock<Duration> =
+pub static AWS_LAMBDA_DEPLOY_SPLAY: LazyLock<Duration> =
  LazyLock::new(|| Duration::from_secs(env_config("AWS_LAMBDA_DEPLOY_SPLAY_SECONDS", 5000)));
 
+/// How long of a window to debounce static lambda deployments. Don't allow too
+/// many static deploys in a small window to protect the infrastructure.
+pub static AWS_LAMBDA_STATIC_DEBOUNCE_DELAY: LazyLock<Duration> = LazyLock::new(|| {
+ Duration::from_secs(env_config("AWS_LAMBDA_STATIC_DEBOUNCE_DELAY_SECONDS", 30))
+});
+
 /// The maximum number of requests to send using a single AWS Lambda client.
 /// Empirical tests have shown that AWS servers allows up to 128 concurrent
 /// streams over a single http2 connection.

crates/model/src/aws_lambda_versions/types.rs

@@ -57,7 +57,7 @@ pub enum AwsLambdaPackageDesc {
  },
 }
 
-#[derive(Clone, Copy, Debug)]
+#[derive(Clone, Copy, Debug, Eq, PartialEq)]
 pub enum AwsLambdaType {
  Static,
  Dynamic,