migrations: add migrations for cpu-manager-policy and cpu-manager-rec…

…oncile-period

adds migration for two new settings `settings.kubernetes.cpu-manager-policy`
and `settings.kubernetes.cpu-manager-reconcile-period`

Release.toml

@@ -56,4 +56,5 @@ version = "1.1.2"
 ]
 "(1.1.2, 1.1.3)" = [
     "migrate_v1.1.3_kubelet-cpu-manager-state.lz4",
+    "migrate_v1.1.3_kubelet-cpu-manager.lz4",
 ]

sources/Cargo.toml

@@ -36,6 +36,7 @@ members = [
     "api/migration/migrations/v1.1.2/admin-container-v0-7-1",
     "api/migration/migrations/v1.1.2/control-container-v0-5-1",
     "api/migration/migrations/v1.1.3/kubelet-cpu-manager-state",
+    "api/migration/migrations/v1.1.3/kubelet-cpu-manager",
 
     "bottlerocket-release",
 

sources/api/migration/migrations/v1.1.3/kubelet-cpu-manager/Cargo.toml

@@ -0,0 +1,12 @@
+[package]
+name = "kubelet-cpu-manager"
+version = "0.1.0"
+authors = ["Tianhao Geng <[email protected]>"]
+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" }

sources/api/migration/migrations/v1.1.3/kubelet-cpu-manager/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.cpu-manager-reconcile-period`
+/// and `settings.kubernetes.cpu-manager-policy`
+fn run() -> Result<()> {
+    migrate(AddSettingsMigration(&[
+        "settings.kubernetes.cpu-manager-policy",
+        "settings.kubernetes.cpu-manager-reconcile-period",
+    ]))
+}
+
+// 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);
+    }
+}