On Tue, Jun 5, 2018 at 11:53 AM arnaud gaboury <arnaud gaboury gmail com> wrote:On Tue, Jun 5, 2018 at 10:18 AM Carmelo Zubeldia Matute <czubeldia intellimentsec com> wrote:I think you are not using the docker-ce version that comes with atomic. You can send the result of the command:
rpm -qa | grep -i docker611:docker-ce-17.03.2.ce-1.el7.centos.x86_64 Yes you are right, I had to use an older version as my machines will be part of Kubernetes cluster and not all docker versions are compatible. This could in fact explain my issue, as I already spent many hours using various methods (manually, helper script, various settings) and can't extend the atomic root with my volume.In fact, looking at various matrix, I think I can use other version. I need to respect the version needed by Rancher as I will use this management tool.Thanks,2018-06-01 15:06 GMT+02:00 arnaud gaboury <arnaud gaboury gmail com>:I created a thin poll storage volume using the helper script "container-storage-setup".
Here is my /etc/sysconfig/docker-storage-setup
-------------------------
VG=vg-docker
ROOT_SIZE=+100%FREE
MIN_DATA_SIZE=8G
GROWPART=true
POOL_AUTOEXTEND_PERCENT=10
----------------------
NOTE: default driver is devicemapper in "/usr/share/container-storage-setup/container-storage-setup" , exactly what I am looking for.
After running the script, here is part of docker info:
-------------------
# docker info
Containers: 0
Running: 0
Paused: 0
Stopped: 0
Images: 0
Server Version: 17.03.2-ce
Storage Driver: overlay2
Backing Filesystem: xfs
.....
-------------------------
As you can see, driver is set to overlay2 when I was expecting devicemapper.
NOTE: Filesystem is good, xfs, but I don't know where does this filesystem comes from as I didn't format the partition. Did the script do it?
when running lsblk, i can see this:
-----------------------------
# lsblk -f
NAMEFSTYPE LABEL UUID MOUNTPOINT
sr0iso9660 config-2 2018-05-30-00-18-35-00
vda
├─vda1ext4 8eb202fa-c75c-43f6-9a87- 7ddb013ce0fa /boot
└─vda2LVM2_member Ji8MSG-yiKd-ZSlF-cop0-siUg- SPSN-xMhEkx
└─atomicos-rootxfs 854965bc-06ad-40df-af9d- 7bfb318c1aed /sysroot
vdb
└─vdb1LVM2_member Wblg0x-nsLd-1eyE-sZfA-jQfO- Ldvi-rUGdK1
├─vg--docker-docker--pool_tmeta
│ └─vg--docker-docker--pool
└─vg--docker-docker--pool_tdata
└─vg--docker-docker--pool
----------------------
As you can see, there is no shown filesystem for my docker pool . Why?
Now, looking at /etc/sysconfig/docker-storage:
--------
# cat /etc/sysconfig/docker-storage
DOCKER_STORAGE_OPTIONS="--storage-driver devicemapper --storage-opt dm.fs=xfs --storage-opt dm.thinpooldev=/dev/mapper/vg- -docker-docker--pool --storage-opt dm.use_deferred_removal=true --storage-opt dm.use_deferred_deletion=true "
-----------------
Here it shows my storage driver as set to devicemapper !
So, what is exactly my storage driver, as bot command don't return the same value.
Thank you for help/explanations.
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