Public bug reported:
Inside the newly launched instance (a container):
root@juju-fakestack-machine-0:~# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/nbd2 1.4G 911M 358M 72% /
tmpfs 64K 0 64K 0% /sys/fs/cgroup
devfs 64K 4.0K 60K 7% /dev
none 1.6G 100K 1.6G 1% /run
none 5.0M 0 5.0M 0% /run/lock
none 7.9G 0 7.9G 0% /run/shm
none 100M 0 100M 0% /run/user
The "disk" file on the outside that qemu-nbd is pointing at:
10550 ? Ssl 0:05 /usr/bin/qemu-nbd -c /dev/nbd2
/var/lib/nova/instances/fb809be7-5b42-4ac2-a164-59dc17078ae5/disk
root@flexible:/var/lib/nova/instances/fb809be7-5b42-4ac2-a164-59dc17078ae5# du
-hs *
0 console.log
250M disk
4.0K disk.info
4.0K libvirt.xml
4.0K rootfs
root@flexible:/var/lib/nova/instances/fb809be7-5b42-4ac2-a164-59dc17078ae5#
qemu-img info disk
image: disk
file format: qcow2
virtual size: 20G (21474836480 bytes)
disk size: 258M
cluster_size: 65536
backing file:
/var/lib/nova/instances/_base/b5a426bcf77b13a86933a29e420e7a89e00da589
Format specific information:
compat: 1.1
lazy refcounts: false
root@flexible:/var/lib/nova/instances/fb809be7-5b42-4ac2-a164-59dc17078ae5#
The image this container was launched with came from this tarball:
https://cloud-images.ubuntu.com/trusty/current/trusty-server-cloudimg-amd64.tar.gz
The image, when uploaded to glance, had a rootfs size constraint of 10G
applied, so juju picked the right image.
I'm guessing a partition/fs resize that happens normally with kvm images
doesn't work when using lxc, or is not applied.
** Affects: nova-compute (Ubuntu)
Importance: Undecided
Status: New
** Tags: cloud-installer landscape
** Tags added: cloud-installer landscape
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https://bugs.launchpad.net/bugs/1352584
Title:
root-disk too small when using LXC as hypervisor
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