Add Velero configuration to .env.sample, README.md, and Ansible playbooks. Update group_vars to include noble_velero_install variable. Enhance documentation for optional Velero installation and S3 integration, improving clarity for backup and restore processes.

ansible/playbooks/noble.yml

@@ -4,7 +4,7 @@
 # Run from repo **ansible/** directory:  ansible-playbook playbooks/noble.yml
 #
 # Tags: repos, cilium, metrics, longhorn, metallb, kube_vip, traefik, cert_manager, newt,
-#       argocd, kyverno, kyverno_policies, platform, all (default)
+#       argocd, kyverno, kyverno_policies, platform, velero, all (default)
 - name: Noble cluster — platform stack (Ansible-managed)
   hosts: localhost
   connection: local
@@ -224,5 +224,7 @@
       tags: [kyverno_policies, policy]
     - role: noble_platform
       tags: [platform, observability, apps]
+    - role: noble_velero
+      tags: [velero, backups]
     - role: noble_landing_urls
       tags: [landing, platform, observability, apps]