From f1f7015e27f49677f9a1f904734dc7cdd1cf7e07 Mon Sep 17 00:00:00 2001
From: Erikson Tung <etung@amazon.com>
Date: Thu, 13 Aug 2020 09:32:04 -0700
Subject: [PATCH] migrations: add `cluster-domain` setting

Add a migration for migrating the new `cluster-domain` setting
---
 sources/Cargo.lock                            |  7 ++++++
 sources/Cargo.toml                            |  1 +
 .../v0.5.0/add-cluster-domain/Cargo.toml      | 12 ++++++++++
 .../v0.5.0/add-cluster-domain/src/main.rs     | 22 +++++++++++++++++++
 4 files changed, 42 insertions(+)
 create mode 100644 sources/api/migration/migrations/v0.5.0/add-cluster-domain/Cargo.toml
 create mode 100644 sources/api/migration/migrations/v0.5.0/add-cluster-domain/src/main.rs

diff --git a/sources/Cargo.lock b/sources/Cargo.lock
index be41e62d5a3..e19d2c06c86 100644
--- a/sources/Cargo.lock
+++ b/sources/Cargo.lock
@@ -242,6 +242,13 @@ dependencies = [
  "syn 1.0.38 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "add-cluster-domain"
+version = "0.1.0"
+dependencies = [
+ "migration-helpers 0.1.0",
+]
+
 [[package]]
 name = "add-version-lock-ignore-waves"
 version = "0.1.0"
diff --git a/sources/Cargo.toml b/sources/Cargo.toml
index 6706b2cef42..6f13096f7c5 100644
--- a/sources/Cargo.toml
+++ b/sources/Cargo.toml
@@ -24,6 +24,7 @@ members = [
     "api/migration/migrations/v0.4.1/pivot-repo-2020-07-07",
     "api/migration/migrations/v0.5.0/migrate-admin-container-v0-5-1",
     "api/migration/migrations/v0.5.0/migrate-control-container-v0-4-1",
+    "api/migration/migrations/v0.5.0/add-cluster-domain",
 
     "bottlerocket-release",
 
diff --git a/sources/api/migration/migrations/v0.5.0/add-cluster-domain/Cargo.toml b/sources/api/migration/migrations/v0.5.0/add-cluster-domain/Cargo.toml
new file mode 100644
index 00000000000..33134969c04
--- /dev/null
+++ b/sources/api/migration/migrations/v0.5.0/add-cluster-domain/Cargo.toml
@@ -0,0 +1,12 @@
+[package]
+name = "add-cluster-domain"
+version = "0.1.0"
+authors = ["Erikson Tung <etung@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/v0.5.0/add-cluster-domain/src/main.rs b/sources/api/migration/migrations/v0.5.0/add-cluster-domain/src/main.rs
new file mode 100644
index 00000000000..0f8f6c689e4
--- /dev/null
+++ b/sources/api/migration/migrations/v0.5.0/add-cluster-domain/src/main.rs
@@ -0,0 +1,22 @@
+#![deny(rust_2018_idioms)]
+
+use migration_helpers::common_migrations::AddSettingsMigration;
+use migration_helpers::{migrate, Result};
+use std::process;
+
+/// We added a new setting, `kubernetes.cluster-domain`
+fn run() -> Result<()> {
+    migrate(AddSettingsMigration(&[
+        "settings.kubernetes.cluster-domain",
+    ]))
+}
+
+// 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);
+    }
+}