packstack/tools/fix_disk_layout.sh
David Moreau-Simard 5b2648aec3 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
2016-04-12 10:34:44 -04:00

98 lines
3.6 KiB
Bash

#!/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