docs: update helm

radar/2018-03-01/helm.md

@@ -1,6 +1,6 @@
 ---
 title:      "Helm"
-ring:       trial
+ring:       assess
 quadrant:   tools
 ---
 

radar/2022-10-12/helm.md

@@ -0,0 +1,15 @@
+---
+title:      "Helm"
+ring:       adopt
+quadrant:   platforms-and-aoe-services
+tags:       [devops]
+---
+
+At AOE, we have adopted [Helmfile](https://github.com/helmfile/helmfile) as a complementary tool to Helm. It is
+a declarative spec for deploying helm charts providing addtional functionality such as:
+
+- Separation between environment specific and general values
+- Simplified secrets management with support for external applications, e.g. Vault
+- Remote state storage in e.g. S3, similar to Terraform
+
+Overall, Helmfile makes it a lot easier to manage and maintain multiple Helm charts and releases.