Merge pull request #1441 from jpculp/control-container-migrate-v0.5.0

migrations: control-container v0.5.0 default version migration

Release.toml

@@ -34,4 +34,5 @@ version = "1.0.7"
     "migrate_v1.0.8_kubelet-eviction-hard.lz4",
     "migrate_v1.0.8_kubelet-unsafe-sysctl-kube-reserved.lz4",
     "migrate_v1.0.8_proxy-affect-host-containers.lz4",
+    "migrate_v1.0.8_control-container-v0-5-0.lz4",
 ]

sources/Cargo.toml

@@ -49,6 +49,7 @@ members = [
     "api/migration/migrations/v1.0.8/kubelet-eviction-hard",
     "api/migration/migrations/v1.0.8/kubelet-unsafe-sysctl-kube-reserved",
     "api/migration/migrations/v1.0.8/proxy-affect-host-containers",
+    "api/migration/migrations/v1.0.8/control-container-v0-5-0",
 
     "bottlerocket-release",
 

sources/api/migration/migrations/v1.0.8/control-container-v0-5-0/Cargo.toml

@@ -0,0 +1,12 @@
+[package]
+name = "control-container-v0-5-0"
+version = "0.1.0"
+authors = ["Patrick J.P. Culp <jpculp@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" }

sources/api/migration/migrations/v1.0.8/control-container-v0-5-0/src/main.rs

@@ -0,0 +1,29 @@
+#![deny(rust_2018_idioms)]
+
+use migration_helpers::common_migrations::ReplaceTemplateMigration;
+use migration_helpers::{migrate, Result};
+use std::process;
+
+const OLD_CONTROL_CTR_TEMPLATE: &str =
+    "{{ ecr-prefix settings.aws.region }}/bottlerocket-control:v0.4.2";
+const NEW_CONTROL_CTR_TEMPLATE: &str =
+    "{{ ecr-prefix settings.aws.region }}/bottlerocket-control:v0.5.0";
+
+/// We bumped the version of the default control container from v0.4.2 to v0.5.0
+fn run() -> Result<()> {
+    migrate(ReplaceTemplateMigration {
+        setting: "settings.host-containers.control.source",
+        old_template: OLD_CONTROL_CTR_TEMPLATE,
+        new_template: NEW_CONTROL_CTR_TEMPLATE,
+    })
+}
+
+// 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);
+    }
+}