swift: Remove deprecated option allow_versions

Start to log deprecation warning since Queens[1].
swift-c: Option allow_versions is deprecated. Configure the versioned_writes
middleware in the proxy-server instead. This option will be ignored in a future
release. Please refer the object versioning documentation for more
information[2].

[1] https://docs.openstack.org/releasenotes/swift/queens.html#relnotes-2-16-0-stable-queens
[2] https://docs.openstack.org/swift/latest/overview_object_versioning.html

chef/cookbooks/swift/templates/default/container-server.conf.erb

@@ -10,7 +10,6 @@ pipeline = healthcheck recon container-server
 [app:container-server]
 use = egg:swift#container
 log_requests = true
-allow_versions = <%= node[:swift][:allow_versions] %>
 [filter:healthcheck]
 use = egg:swift#healthcheck
 [filter:recon]

chef/cookbooks/tempest/recipes/config.rb

@@ -383,11 +383,11 @@
 swifts = search(:node, "roles:swift-proxy") || []
 use_swift = !swifts.empty?
 if use_swift
-  swift_allow_versions = swifts[0][:swift][:allow_versions]
+  swift_allow_versions = swifts[0][:swift][:allow_versioned_writes]
   swift_proposal_name = swifts[0][:swift][:config][:environment].gsub(/^swift-config-/, "")
   swift_cluster_name = "#{node[:domain]}_#{swift_proposal_name}"
 else
-  swift_allow_versions = false
+  swift_allow_versions = true
   swift_cluster_name = nil
 end
 

chef/data_bags/crowbar/migrate/swift/301_update_allow_versions.rb

@@ -0,0 +1,11 @@
+def upgrade(template_attrs, template_deployment, attrs, deployment)
+  attrs["allow_versioned_writes"] = attrs["allow_versions"]
+  attrs.delete("allow_versions")
+  return attrs, deployment
+end
+
+def downgrade(template_attrs, template_deployment, attrs, deployment)
+  attrs.delete("allow_versioned_writes")
+  attrs["allow_versions"] = template_attrs["allow_versions"]
+  return attrs, deployment
+end

chef/data_bags/crowbar/template-swift.json

@@ -82,7 +82,7 @@
       "service_user": "swift",
       "service_password": "",
       "keystone_delay_auth_decision": false,
-      "allow_versions": false,
+      "allow_versioned_writes": true,
       "reseller_prefix" : "AUTH_",
       "debug": false,
       "admin_ip_expr": "Chef::Recipe::Barclamp::Inventory.get_network_by_type(node, \"admin\").address",
@@ -96,7 +96,7 @@
     "swift": {
       "crowbar-revision": 0,
       "crowbar-applied": false,
-      "schema-revision": 300,
+      "schema-revision": 301,
       "element_states": {
         "swift-dispersion": [ "ready", "applying" ],
         "swift-storage": [ "readying", "ready", "applying" ],

chef/data_bags/crowbar/template-swift.schema

@@ -134,7 +134,7 @@
             "service_user": { "type": "str", "required": true },
             "service_password": { "type": "str" },
             "keystone_delay_auth_decision": { "type": "bool", "required": false },
-            "allow_versions": { "type": "bool", "required": false },
+            "allow_versioned_writes": { "type": "bool", "required": false },
             "reseller_prefix": { "type": "str", "required": false },            
             "user": { "type": "str", "required": false },
             "group": { "type": "str", "required": false },

crowbar_framework/app/views/barclamp/swift/_edit_attributes.html.haml

@@ -5,7 +5,7 @@
   .panel-body
     = instance_field :keystone
     = boolean_field :keystone_delay_auth_decision
-    = boolean_field :allow_versions
+    = boolean_field :allow_versioned_writes
     = integer_field :zones
     = integer_field :partitions
     = integer_field :min_part_hours

crowbar_framework/config/locales/swift/en.yml

@@ -71,7 +71,7 @@ en:
       edit_attributes:
         keystone_instance: 'Keystone instance'
         keystone_delay_auth_decision: 'Allow Public Containers (Anonymous access, performance penalty)'
-        allow_versions: 'Enable Object Versioning'
+        allow_versioned_writes: 'Enables using versioned writes middleware'
         zones: 'Zones'
         partitions: 'Create 2^X Logical Partitions'
         min_part_hours: 'Minimum Hours before Partition is reassigned'