ceph-ansible/tests/functional
Guillaume Abrioux 34f7042852 tests: resize root partition when atomic host
For a few moment we can see failures in the CI for containerized
scenarios because VMs are running out of space at some point.

The default in the images used is to have only 3Gb for root partition
which doesn't sound like a lot.

Typical error seen:

```
STDERR:

failed to register layer: Error processing tar file(exit status 1): open /usr/share/zoneinfo/Atlantic/Canary: no space left on device
```

Indeed, on the machine we can see:
```
Every 2.0s: df -h                                                                                                                                                                                                                                       Tue May 29 17:21:13 2018
Filesystem                 Size  Used Avail Use% Mounted on
/dev/mapper/atomicos-root  3.0G  3.0G   14M 100% /
```

The idea here is to expand this partition with all the available space
remaining by issuing an `lvresize` followed by an `xfs_growfs`.

```
-bash-4.2# lvresize -l +100%FREE /dev/atomicos/root
  Size of logical volume atomicos/root changed from <2.93 GiB (750 extents) to 9.70 GiB (2484 extents).
  Logical volume atomicos/root successfully resized.
```

```
-bash-4.2# xfs_growfs /
meta-data=/dev/mapper/atomicos-root isize=512    agcount=4, agsize=192000 blks
         =                       sectsz=512   attr=2, projid32bit=1
         =                       crc=1        finobt=0 spinodes=0
data     =                       bsize=4096   blocks=768000, imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0 ftype=1
log      =internal               bsize=4096   blocks=2560, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0
data blocks changed from 768000 to 2543616
```

```
-bash-4.2# df -h
Filesystem                 Size  Used Avail Use% Mounted on
/dev/mapper/atomicos-root  9.7G  1.4G  8.4G  14% /
```

Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>
2018-05-30 10:54:35 +02:00
..
centos/7 tests: move cephfs_pools variable 2018-05-24 09:39:38 -07:00
tests tests: update tests for mds to cover multimds case 2018-04-12 18:20:58 +02:00
ubuntu/16.04/cluster tests: move cephfs_pools variable 2018-05-24 09:39:38 -07:00
.gitignore tests: ignore folders created by ceph-ansible during testing 2016-11-08 10:35:43 -06:00
dev_setup.yml nfs: add automated testing for nfs-ganesha roles 2017-09-08 09:14:01 -04:00
lvm_setup.yml tests: no need to remove partitions in lvm_setup.yml 2018-04-10 14:19:21 +02:00
reboot.yml syntax: change local_action syntax 2018-01-31 10:45:34 +01:00
rhcs_setup.yml Use check_mode instead of always_run 2017-10-25 09:53:34 -05:00
setup.yml tests: resize root partition when atomic host 2018-05-30 10:54:35 +02:00