Enable missing support for large objects in Swift

The slo and dlo middlewares are required to enable support for large
objects (> 5GB). Also enabling the copy & versioned_writes middleware,
which enables object copying and versionining.

Closes-Bug: 1761412
Change-Id: Iff73833f1d470750862873f70a4a9aaba50bd164
(cherry picked from commit ea55f3de12)

elements/puppet-stack-config/puppet-stack-config.pp

@@ -445,6 +445,10 @@ include ::swift::proxy::cache
 include ::swift::proxy::keystone
 include ::swift::proxy::authtoken
 include ::swift::proxy::staticweb
+include ::swift::proxy::copy
+include ::swift::proxy::slo
+include ::swift::proxy::dlo
+include ::swift::proxy::versioned_writes
 include ::swift::proxy::ratelimit
 include ::swift::proxy::catch_errors
 include ::swift::proxy::tempurl

elements/puppet-stack-config/puppet-stack-config.yaml.template

@@ -91,6 +91,10 @@ swift::proxy::pipeline:
   - 'authtoken'
   - 'keystone'
   - 'staticweb'
+  - 'copy'
+  - 'slo'
+  - 'dlo'
+  - 'versioned_writes'
   - 'proxy-logging'
   - 'proxy-server'