Fix gate: Tempest setup and repositories

- We no longer need to setup Tempest in a virtual environment
  since that is now handled by tox
- Do not explicitely require python-openstackclient since that
  is now handled by puppet-tempest since
  https://review.openstack.org/301162
- Setup packstack to consume Mitaka repositories and OPM until
  Newton is actively tested
- Make swap configuration consistent
- Add an empty other-requirements.txt file to prevent the
  openstack gate environment to pre-install dependencies for
  us; these are installed within run_tests.sh
- Enforce locale, seems necessary since the switch to the new
  centos7 images in the openstack-infra gate

Co-Authored-By: David Moreau Simard <dms@redhat.com>
Co-Authored-By: Javier Peña <jpena@redhat.com>
Change-Id: I80813ee9404a3cbc837d0d9810855fb13c0d904b
(cherry picked from commit 5b2648aec3)

packstack/puppet/templates/provision_tempest.pp

@@ -51,7 +51,6 @@ $tempest_repo_uri      = hiera('CONFIG_PROVISION_TEMPEST_REPO_URI')
 $tempest_repo_revision = hiera('CONFIG_PROVISION_TEMPEST_REPO_REVISION')
 $tempest_clone_path    = '/var/lib/tempest'
 $tempest_clone_owner   = 'root'
-$setup_venv            = true
 $tempest_user          = hiera('CONFIG_PROVISION_TEMPEST_USER')
 $tempest_password      = hiera('CONFIG_PROVISION_TEMPEST_USER_PW')
 
@@ -69,11 +68,6 @@ $heat_available       = str2bool(hiera('CONFIG_HEAT_INSTALL'))
 $swift_available      = str2bool(hiera('CONFIG_SWIFT_INSTALL'))
 $configure_tempest    = str2bool(hiera('CONFIG_PROVISION_TEMPEST'))
 
-# on standalone install we depend on this package
-package {'python-openstackclient':
-  before => Class['::tempest'],
-}
-
 class { '::tempest':
   admin_domain_name         => $admin_domain_name,
   admin_password            => $admin_password,
@@ -105,7 +99,6 @@ class { '::tempest':
   public_router_id          => $public_router_id,
   resize_available          => $resize_available,
   sahara_available          => $sahara_available,
-  setup_venv                => $setup_venv,
   swift_available           => $swift_available,
   tempest_clone_owner       => $tempest_clone_owner,
   tempest_clone_path        => $tempest_clone_path,

run_tests.sh

@@ -20,8 +20,8 @@ SCENARIO=${SCENARIO:-scenario001}
 # We could want to override the default repositories or install behavior
 INSTALL_FROM_SOURCE=${INSTALL_FROM_SOURCE:-true}
 MANAGE_REPOS=${MANAGE_REPOS:-true}
-DELOREAN=${DELOREAN:-http://trunk.rdoproject.org/centos7/current-passed-ci/delorean.repo}
-DELOREAN_DEPS=${DELOREAN_DEPS:-http://trunk.rdoproject.org/centos7/delorean-deps.repo}
+DELOREAN=${DELOREAN:-http://trunk.rdoproject.org/centos7-mitaka/current-passed-ci/delorean.repo}
+DELOREAN_DEPS=${DELOREAN_DEPS:-http://trunk.rdoproject.org/centos7-mitaka/delorean-deps.repo}
 
 # If logs should be retrieved automatically
 COPY_LOGS=${COPY_LOGS:-true}
@@ -39,6 +39,15 @@ if [ $(id -u) != 0 ]; then
     $SUDO service sshd restart
 fi
 
+# TODO: REMOVE ME
+# https://github.com/openstack/diskimage-builder/blob/b5bcb3b60ec33c4538baa1aeacd026998b155ca6/elements/yum-minimal/pre-install.d/03-yum-cleanup#L26
+$SUDO yum -y reinstall glibc-common
+
+# Make swap configuration consistent
+# TODO: REMOVE ME
+# https://review.openstack.org/#/c/300122/
+source ./tools/fix_disk_layout.sh
+
 # Bump ulimit to avoid too many open file errors
 echo "${USER} soft nofile 65536" | $SUDO tee -a /etc/security/limits.conf
 echo "${USER} hard nofile 65536" | $SUDO tee -a /etc/security/limits.conf

setup.py

@@ -28,7 +28,7 @@ MODULES_DIR = os.environ.get('PACKSTACK_PUPPETDIR',
                              '/usr/share/openstack-puppet/modules')
 MODULES_REPO = ('https://github.com/redhat-openstack/'
                 'openstack-puppet-modules.git')
-MODULES_BRANCH = 'master'
+MODULES_BRANCH = 'stable/mitaka'
 
 
 class InstallModulesCommand(Command):

tools/fix_disk_layout.sh

@@ -0,0 +1,97 @@
+#!/bin/bash
+# Copyright (C) 2016 OpenStack Foundation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.
+#
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Don't attempt to fix disk layout more than once
+[[ -e /etc/fixed_disk_layout ]] && return 0 || sudo touch /etc/fixed_disk_layout
+
+# Ensure virtual machines from different providers all have at least 8GB of
+# swap.
+# Use an ephemeral disk if there is one or create and use a swapfile.
+# Rackspace also doesn't have enough space on / for two devstack installs,
+# so we partition the disk and mount it on /opt, syncing the previous
+# contents of /opt over.
+SWAPSIZE=8192
+swapcurrent=$(( $(grep SwapTotal /proc/meminfo | awk '{ print $2; }') / 1024 ))
+
+if [[ $swapcurrent -lt $SWAPSIZE ]]; then
+    if [ -b /dev/xvde ]; then
+        DEV='/dev/xvde'
+    else
+        EPHEMERAL_DEV=$(blkid -L ephemeral0 || true)
+        if [ -n "$EPHEMERAL_DEV" -a -b "$EPHEMERAL_DEV" ]; then
+            DEV=$EPHEMERAL_DEV
+        fi
+    fi
+    if [ -n "$DEV" ]; then
+        # If an ephemeral device is available, use it
+        swap=${DEV}1
+        lvmvol=${DEV}2
+        optdev=${DEV}3
+        if mount | grep ${DEV} > /dev/null; then
+            echo "*** ${DEV} appears to already be mounted"
+            echo "*** ${DEV} unmounting and reformating"
+            sudo umount ${DEV}
+        fi
+        sudo parted ${DEV} --script -- mklabel msdos
+        sudo parted ${DEV} --script -- mkpart primary linux-swap 1 ${SWAPSIZE}
+        sudo parted ${DEV} --script -- mkpart primary ext2 8192 -1
+        sudo mkswap ${DEV}1
+        sudo mkfs.ext4 ${DEV}2
+        sudo swapon ${DEV}1
+        sudo mount ${DEV}2 /mnt
+        sudo find /opt/ -mindepth 1 -maxdepth 1 -exec mv {} /mnt/ \;
+        sudo umount /mnt
+        sudo mount ${DEV}2 /opt
+
+        # Sanity check
+        grep -q ${DEV}1 /proc/swaps || exit 1
+        grep -q ${DEV}2 /proc/mounts || exit 1
+    else
+        # If no ephemeral devices are available, use root filesystem
+        # Don't use sparse device to avoid wedging when disk space and
+        # memory are both unavailable.
+        swapfile='/root/swapfile'
+        swapdiff=$(( $SWAPSIZE - $swapcurrent ))
+
+        sudo dd if=/dev/zero of=${swapfile} bs=1M count=${swapdiff}
+        sudo chmod 600 ${swapfile}
+        sudo mkswap ${swapfile}
+        sudo swapon ${swapfile}
+
+        # Sanity check
+        grep -q ${swapfile} /proc/swaps || exit 1
+    fi
+fi
+
+# dump vm settings for reference (Ubuntu 12 era procps can get
+# confused with certain proc trigger nodes that are write-only and
+# return a EPERM; ignore this)
+sudo sysctl vm || true
+
+# ensure a standard level of swappiness.  Some platforms
+# (rax+centos7) come with swappiness of 0 (presumably because the
+# vm doesn't come with swap setup ... but we just did that above),
+# which depending on the kernel version can lead to the OOM killer
+# kicking in on some processes despite swap being available;
+# particularly things like mysql which have very high ratio of
+# anonymous-memory to file-backed mappings.
+
+# make sure reload of sysctl doesn't reset this
+sudo sed -i '/vm.swappiness/d' /etc/sysctl.conf
+# This sets swappiness low; we really don't want to be relying on
+# cloud I/O based swap during our runs
+sudo sysctl -w vm.swappiness=10