Support of Ubuntu 16.04 LTS Xenial deployments

Add support for Xenial deployments.

* Disable SSL on Ubuntu Xenial deployments.
* Pin puppetlabs-mysql to a recent commit (until they produce a new
  tag).
* Disable Ceph on Ubuntu Xenial deployments, neither Hammer or Jewel currently
  work out of the box with puppet-ceph on Xenial.
* Disable Horizon on Ubuntu Xenial deployments: not working yet.
* Do not deploy UCA on Xenial, since we currently deploy Mitaka.
* On Xenial, deploy Puppet using distro packaging, not puppetlabs.com.
* Cleanup /etc/default/puppet on Xenial / Puppet4 runs (workaround)
  until we figure what is installing this file on Xenial nodepool
  image.

All issues are documented here:
See https://etherpad.openstack.org/p/puppet-openstack-xenial

Change-Id: Ifc8c7e241add830c88b84c1f01770e5e15df1653

Puppetfile

@@ -160,7 +160,8 @@ mod 'mongodb',
 
 mod 'mysql',
   :git => 'https://github.com/puppetlabs/puppetlabs-mysql',
-  :ref => '3.7.0'
+  # until we got a release on puppetlabs-mysql
+  :ref => '5695cef4a66364d34ede90a08fe07e4b277ff8ba'
 
 mod 'postgresql',
   :git => 'https://github.com/puppetlabs/puppetlabs-postgresql',

all-in-one.sh

@@ -15,7 +15,7 @@
 #
 # Deploy Puppet OpenStack modules, deploy OpenStack and test the setup.
 # Software requirements:
-# * Ubuntu 14.04 LTS or CentOS7 fresh install
+# * Ubuntu 14.04 LTS or Ubuntu 16.04 LTS or CentOS7 fresh install
 # * 'git' installed
 #
 # Hardware requirements:

external_modules.txt

@@ -7,7 +7,7 @@ puppetlabs/puppetlabs-concat
 puppetlabs/puppetlabs-firewall
 puppetlabs/puppetlabs-inifile
 puppetlabs/puppetlabs-mongodb
-puppetlabs/puppetlabs-mysql
+puppetlabs/puppetlabs-mysql,5695cef4a66364d34ede90a08fe07e4b277ff8ba
 puppetlabs/puppetlabs-postgresql
 puppetlabs/puppetlabs-rabbitmq
 puppetlabs/puppetlabs-rsync

fixtures/scenario001.pp

@@ -29,9 +29,24 @@ case $::osfamily {
   }
 }
 
+# List of workarounds for Ubuntu Xenial:
+# - disable ceph
+# - disable SSL
+if ($::operatingsystem == 'Ubuntu') and (versioncmp($::operatingsystemmajrelease, '16') >= 0) {
+  $ssl_enabled    = false
+  $glance_backend = 'file'
+  $cinder_backend = 'iscsi'
+  $libvirt_rbd    = false
+} else {
+  $ssl_enabled    = true
+  $glance_backend = 'rbd'
+  $cinder_backend = 'rbd'
+  $libvirt_rbd    = true
+}
+
 include ::openstack_integration
 class { '::openstack_integration::config':
-  ssl  => true,
+  ssl  => $ssl_enabled,
   ipv6 => $ipv6,
 }
 include ::openstack_integration::cacert
@@ -39,21 +54,23 @@ include ::openstack_integration::rabbitmq
 include ::openstack_integration::mysql
 include ::openstack_integration::keystone
 class { '::openstack_integration::glance':
-  backend => 'rbd',
+  backend => $glance_backend,
 }
 include ::openstack_integration::neutron
 class { '::openstack_integration::nova':
-  libvirt_rbd => true,
+  libvirt_rbd => $libvirt_rbd,
 }
 class { '::openstack_integration::cinder':
-  backend => 'rbd',
+  backend => $cinder_backend,
 }
 if $ceilometer_enabled {
   include ::openstack_integration::ceilometer
   include ::openstack_integration::aodh
   include ::openstack_integration::gnocchi
 }
-include ::openstack_integration::ceph
+if $libvirt_rbd {
+  include ::openstack_integration::ceph
+}
 include ::openstack_integration::provision
 
 class { '::openstack_integration::tempest':

fixtures/scenario002.pp

@@ -29,9 +29,16 @@ case $::osfamily {
   }
 }
 
+# Disable SSL (workaround for Xenial)
+if ($::operatingsystem == 'Ubuntu') and (versioncmp($::operatingsystemmajrelease, '16') >= 0) {
+  $ssl_enabled = false
+} else {
+  $ssl_enabled = true
+}
+
 include ::openstack_integration
 class { '::openstack_integration::config':
-  ssl  => true,
+  ssl  => $ssl_enabled,
   ipv6 => $ipv6,
 }
 include ::openstack_integration::cacert

fixtures/scenario003.pp

@@ -30,10 +30,21 @@ case $::osfamily {
   }
 }
 
+# List of workarounds for Ubuntu Xenial:
+# - disable Horizon
+# - disable SSL
+if ($::operatingsystem == 'Ubuntu') and (versioncmp($::operatingsystemmajrelease, '16') >= 0) {
+  $ssl_enabled     = false
+  $horizon_enabled = false
+} else {
+  $ssl_enabled     = true
+  $horizon_enabled = true
+}
+
 include ::openstack_integration
 class { '::openstack_integration::config':
   ipv6 => $ipv6,
-  ssl  => true,
+  ssl  => $ssl_enabled,
 }
 include ::openstack_integration::cacert
 include ::openstack_integration::rabbitmq
@@ -47,7 +58,9 @@ class { '::openstack_integration::neutron':
 }
 include ::openstack_integration::nova
 include ::openstack_integration::trove
-include ::openstack_integration::horizon
+if $horizon_enabled {
+  include ::openstack_integration::horizon
+}
 include ::openstack_integration::heat
 # enable when we figure why mistral tempest tests are so unstable
 # include ::openstack_integration::mistral
@@ -58,6 +71,6 @@ class { '::openstack_integration::tempest':
   trove   => true,
   sahara  => true,
   mistral => $mistral_enabled,
-  horizon => true,
+  horizon => $horizon_enabled,
   heat    => true,
 }

manifests/repos.pp

@@ -3,10 +3,13 @@ class openstack_integration::repos {
   case $::osfamily {
     'Debian': {
       include ::apt
+      # Mitaka is already packaged in 16.04, so we don't need UCA.
+      if ($::operatingsystem == 'Ubuntu') and ! (versioncmp($::operatingsystemmajrelease, '16') >= 0) {
         class { '::openstack_extras::repo::debian::ubuntu':
           release         => 'mitaka',
           package_require => true,
         }
+      }
       # Ceph is both packaged on UCA & ceph.com
       # Official packages are on ceph.com so we want to make sure
       # Ceph will be installed from there.

run_tests.sh

@@ -19,6 +19,7 @@ export MANAGE_PUPPET_MODULES=${MANAGE_PUPPET_MODULES:-true}
 export MANAGE_REPOS=${MANAGE_REPOS:-true}
 export PUPPET_ARGS=${PUPPET_ARGS:-}
 export SCRIPT_DIR=$(cd `dirname $0` && pwd -P)
+export DISTRO=$(lsb_release -c -s)
 
 if [ $PUPPET_VERSION == 4 ]; then
   export PATH=${PATH}:/opt/puppetlabs/bin
@@ -62,13 +63,21 @@ fi
 
 if uses_debs; then
     print_header 'Setup (Debian based)'
+    # Puppetlabs packaging:
+    # - trusty: puppet3 and puppet4
+    # - xenial: puppet4 only
+    if [[ ${DISTRO} == "trusty" ]] || [[ ${DISTRO} == "xenial" && ${PUPPET_VERSION} == 4 ]]; then
           if dpkg -l $PUPPET_RELEASE_FILE >/dev/null 2>&1; then
               $SUDO apt-get purge -y $PUPPET_RELEASE_FILE
           fi
           $SUDO rm -f /tmp/puppet.deb
-
-    wget http://apt.puppetlabs.com/${PUPPET_RELEASE_FILE}-trusty.deb -O /tmp/puppet.deb
+          wget http://apt.puppetlabs.com/${PUPPET_RELEASE_FILE}-${DISTRO}.deb -O /tmp/puppet.deb
           $SUDO dpkg -i /tmp/puppet.deb
+          # TODO(emilien): figure what installed /etc/default/puppet on the xenial nodepool image
+          # We have no problem on Trusty but on Xenial we need to remove /etc/default/puppet before
+          # trying to deploy puppet-agent from puppetlabs.com.
+          $SUDO rm -rf /etc/default/puppet
+    fi
     $SUDO apt-get update
     $SUDO apt-get install -y dstat ${PUPPET_PKG}
 elif is_fedora; then