Pattern-match node names for VM backup exclusion

environments/production.json

@@ -45,9 +45,9 @@
     "kosmos_kvm": {
       "backup": {
         "nodes_excluded": [
-          "garage-2", "garage-3", "garage-4",
-          "postgres-5",
-          "rsk-mainnet-2", "rsk-testnet-3"
+          "garage-",
+          "rsk-",
+          "postgres-5"
         ]
       }
     },

site-cookbooks/kosmos_kvm/recipes/backup.rb

@@ -54,7 +54,7 @@ end
 vm_domains = search(:node, "role:kvm_guest").map{|n| n["hostname"] } \
              & `virsh list --name`.strip.chomp.split("\n")
 
-vm_domains.reject! { |d| node["kosmos_kvm"]["backup"]["nodes_excluded"].include?(d) }
+vm_domains.reject! { |d| node["kosmos_kvm"]["backup"]["nodes_excluded"].any?{ |n| d.match?(/^#{n}/) } }
 
 template "/root/backups/backup_all_vms.sh" do
   source "backup_all_vms.sh.erb"