migrations: add 'aws-k8s-provider-id-gen' migration

This migrates the new 'setting-generator' for 'provider-id' in aws-k8s
variants.

Release.toml

@@ -193,7 +193,9 @@ version = "1.14.0"
     "migrate_v1.13.1_aws-profile-cred-provider.lz4",
 ]
 "(1.13.1, 1.13.2)" = []
-"(1.13.2, 1.13.3)" = []
+"(1.13.2, 1.13.3)" = [
+    "migrate_v1.13.3_aws-k8s-provider-id-gen.lz4",
+]
 "(1.13.3, 1.14.0)" = [
     "migrate_v1.14.0_kubernetes-gc-percent-type-change.lz4"
 ]

sources/Cargo.toml

@@ -41,6 +41,7 @@ members = [
     "api/migration/migrations/v1.13.0/aws-control-container-v0-7-1",
     "api/migration/migrations/v1.13.0/public-control-container-v0-7-1",
     "api/migration/migrations/v1.13.1/aws-profile-cred-provider",
+    "api/migration/migrations/v1.13.3/aws-k8s-provider-id-gen",
     "api/migration/migrations/v1.14.0/kubernetes-gc-percent-type-change",
 
     "bottlerocket-release",

sources/api/migration/migrations/v1.13.3/aws-k8s-provider-id-gen/Cargo.toml

@@ -0,0 +1,12 @@
+[package]
+name = "aws-k8s-provider-id-gen"
+version = "0.1.0"
+authors = ["Erikson Tung <etung@amazon.com>"]
+license = "Apache-2.0 OR MIT"
+edition = "2021"
+publish = false
+# Don't rebuild crate just because of changes to README.
+exclude = ["README.md"]
+
+[dependencies]
+migration-helpers = { path = "../../../migration-helpers", version = "0.1.0"}

sources/api/migration/migrations/v1.13.3/aws-k8s-provider-id-gen/src/main.rs

@@ -0,0 +1,21 @@
+use migration_helpers::common_migrations::{AddMetadataMigration, SettingMetadata};
+use migration_helpers::{migrate, Result};
+use std::process;
+
+/// We added a new `setting-generator` metadata for `kubernetes.provider-id`
+fn run() -> Result<()> {
+    migrate(AddMetadataMigration(&[SettingMetadata {
+        metadata: &["setting-generator"],
+        setting: "settings.kubernetes.provider-id",
+    }]))
+}
+
+// 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);
+    }
+}