From f65be1c280736a368fc4bff6bbd284fed302e6d4 Mon Sep 17 00:00:00 2001
From: Tianhao Geng <tianhg@amazon.com>
Date: Wed, 28 Apr 2021 02:07:26 +0000
Subject: [PATCH] migrations: add migration for adding event-qps and
 event-burst

Adds a migration for two new settings `settings.kubernetes.event-qps`
and `settings.kubernetes.event-burst`
---
 Release.toml                                  |  1 +
 sources/Cargo.lock                            |  7 ++++++
 sources/Cargo.toml                            |  1 +
 .../kubelet-event-qps-event-burst/Cargo.toml  | 12 ++++++++++
 .../kubelet-event-qps-event-burst/src/main.rs | 24 +++++++++++++++++++
 5 files changed, 45 insertions(+)
 create mode 100644 sources/api/migration/migrations/v1.1.0/kubelet-event-qps-event-burst/Cargo.toml
 create mode 100644 sources/api/migration/migrations/v1.1.0/kubelet-event-qps-event-burst/src/main.rs

diff --git a/Release.toml b/Release.toml
index 75e5a324c75..1c572e3166f 100644
--- a/Release.toml
+++ b/Release.toml
@@ -43,4 +43,5 @@ version = "1.0.8"
     "migrate_v1.1.0_kubelet-cloud-provider.lz4",
     "migrate_v1.1.0_kubelet-registry-qps-registry-burst.lz4",
     "migrate_v1.1.0_shared-containerd-configs.lz4",
+    "migrate_v1.1.0_kubelet-event-qps-event-burst.lz4",
 ]
diff --git a/sources/Cargo.lock b/sources/Cargo.lock
index ef81d4f6160..b5646ac2cc4 100644
--- a/sources/Cargo.lock
+++ b/sources/Cargo.lock
@@ -1389,6 +1389,13 @@ dependencies = [
  "migration-helpers",
 ]
 
+[[package]]
+name = "kubelet-event-qps-event-burst"
+version = "0.1.0"
+dependencies = [
+ "migration-helpers",
+]
+
 [[package]]
 name = "kubelet-registry-qps-registry-burst"
 version = "0.1.0"
diff --git a/sources/Cargo.toml b/sources/Cargo.toml
index 40fd33d3b82..d8db9377b9b 100644
--- a/sources/Cargo.toml
+++ b/sources/Cargo.toml
@@ -28,6 +28,7 @@ members = [
     "api/migration/migrations/v1.1.0/kubelet-cloud-provider",
     "api/migration/migrations/v1.1.0/kubelet-registry-qps-registry-burst",
     "api/migration/migrations/v1.1.0/shared-containerd-configs",
+    "api/migration/migrations/v1.1.0/kubelet-event-qps-event-burst",
 
     "bottlerocket-release",
 
diff --git a/sources/api/migration/migrations/v1.1.0/kubelet-event-qps-event-burst/Cargo.toml b/sources/api/migration/migrations/v1.1.0/kubelet-event-qps-event-burst/Cargo.toml
new file mode 100644
index 00000000000..7c8fed4c2f6
--- /dev/null
+++ b/sources/api/migration/migrations/v1.1.0/kubelet-event-qps-event-burst/Cargo.toml
@@ -0,0 +1,12 @@
+[package]
+name = "kubelet-event-qps-event-burst"
+version = "0.1.0"
+authors = ["Tianhao Geng <tianhg@amazon.com>"]
+license = "Apache-2.0 OR MIT"
+edition = "2018"
+publish = false
+# Don't rebuild crate just because of changes to README.
+exclude = ["README.md"]
+
+[dependencies]
+migration-helpers = { path = "../../../migration-helpers" }
diff --git a/sources/api/migration/migrations/v1.1.0/kubelet-event-qps-event-burst/src/main.rs b/sources/api/migration/migrations/v1.1.0/kubelet-event-qps-event-burst/src/main.rs
new file mode 100644
index 00000000000..6254b447c4d
--- /dev/null
+++ b/sources/api/migration/migrations/v1.1.0/kubelet-event-qps-event-burst/src/main.rs
@@ -0,0 +1,24 @@
+#![deny(rust_2018_idioms)]
+
+use migration_helpers::common_migrations::AddSettingsMigration;
+use migration_helpers::{migrate, Result};
+use std::process;
+
+/// We added two new settings for configuring kubelet, `settings.kubernetes.event-qps`
+/// and `settings.kubernetes.event-burst`
+fn run() -> Result<()> {
+    migrate(AddSettingsMigration(&[
+        "settings.kubernetes.event-qps",
+        "settings.kubernetes.event-burst",
+    ]))
+}
+
+// Returning a Result from main makes it print a Debug representation of the error, but with Snafu
+// we have nice Display representations of the error, so we wrap "main" (run) and print any error.
+// https://github.com/shepmaster/snafu/issues/110
+fn main() {
+    if let Err(e) = run() {
+        eprintln!("{}", e);
+        process::exit(1);
+    }
+}