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| author |   Ryan Hallisey <rhallise@redhat.com> | 2016-03-05 01:28:24 +0000 |
|---|---|---|
| committer | Ryan Hallisey <rhallise@redhat.com> | 2016-03-09 16:23:07 +0000 |
| commit | 41a333f8743432ba85147ca3070d690a69ec4781 (patch) | |
| tree | c32d16f4edd28d6e8c1a8a94ac7784f997feb11d | |
| parent | 91c5c470890f1716e70ca50a72ff7431e6fac08a (diff) | |
Allow the containerized compute node to spawn larger VMs
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>
| -rw-r--r-- | docker/firstboot/start_docker_agents.sh | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/docker/firstboot/start_docker_agents.sh b/docker/firstboot/start_docker_agents.sh index 963c7eee..bb458a68 100644 --- a/docker/firstboot/start_docker_agents.sh +++ b/docker/firstboot/start_docker_agents.sh @@ -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 |