openstack/tripleo-heat-templates
Code Issues Proposed changes

Allow the containerized compute node to spawn larger VMs

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Atomic's root partition & logical volume defaults to 3G.
In order to launch larger VMs, we need to enlarge the root
logical volume and scale down the docker_pool logical volume.
We are allocating 80% of the disk space for vm data and the
remaining 20% for docker images.

Change-Id: If3fff78f476de23c7c51741a49bae227f2cdfe3e
Co-authored-by: Ian Main <imain@redhat.com>
Co-authored-by: Jeff Peeler <jpeeler@redhat.com>
(cherry picked from commit 7c70de55385efbc1ff54e715397d246ec4fe97bb)
This commit is contained in:
Ryan Hallisey 2016-03-05 01:28:24 +00:00
parent a4c92f4163
commit c8b2d0f186
1 changed files with 19 additions and 0 deletions
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19
docker/firstboot/start_docker_agents.sh
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@ -73,3 +73,22 @@ chmod 0640 /etc/systemd/system/heat-docker-agents.service
# Disable NetworkManager and let the ifup/down scripts work properly.
/usr/bin/systemctl disable NetworkManager
/usr/bin/systemctl stop NetworkManager
# Atomic's root partition & logical volume defaults to 3G. In order to launch
# larger VMs, we need to enlarge the root logical volume and scale down the
# docker_pool logical volume. We are allocating 80% of the disk space for
# vm data and the remaining 20% for docker images.
ATOMIC_ROOT='/dev/mapper/atomicos-root'
ROOT_DEVICE=`pvs -o vg_name,pv_name --no-headings | grep atomicos | awk '{ print $2}'`
growpart $( echo "${ROOT_DEVICE}" | sed -r 's/([^0-9]*)([0-9]+)/\1 \2/' )
pvresize "${ROOT_DEVICE}"
lvresize -l +80%FREE "${ATOMIC_ROOT}"
xfs_growfs "${ATOMIC_ROOT}"
cat <<EOF > /etc/sysconfig/docker-storage-setup
GROWPART=true
AUTO_EXTEND_POOL=yes
POOL_AUTOEXTEND_PERCENT=30
POOL_AUTOEXTEND_THRESHOLD=70
EOF