feat(zabbix): Add policy for a Zabbix server to use dedicated credentials (#1)

policies/role-zabbix/role-zabbix.hcl

@@ -0,0 +1,12 @@
+# Allow listing secret parent-child connections (as in UI hierarchy). Subdir
+# underneath 'kv' secrets engine will remain hidden though, user has to
+# manually open up
+# ${VAULT_ADDR}/ui/vault/secrets/kv/list/for_{{identity.groups.ids.GROUPID.name}}
+path "kv/metadata/for_{{identity.groups.ids.GROUPID.name}}/*" {
+    capabilities = ["list"]
+}
+
+# Grant read-only access to secrets
+path "kv/data/for_{{identity.groups.ids.GROUPID.name}}/*" {
+    capabilities = ["read"]
+}