Tools » teuthology

There are some issues installing the tgt stuff first.

I thought that this would work:

echo "deb http://ceph.com/packages/ceph-extras/debian/ precise main" |
sudo tee /etc/apt/sources.list.d/ceph-extras.list 

sudo apt-get update -y && sudo apt-get upgrade -y

sudo apt-get install tgt (maybe as tgt=...)

However, the the update and upgrade portions run into all sorts of problems.
I ran these by hand and noticed that the ceph-extras update also updates grub and breaks out of the installation with a pink screen to ask for the user to pick a grub file. This may be why the update and upgrade when run in the background have issues.

Also, installing the whole ceph-extras seems bad to me because we may not want all these features but would want tgt.

I am either missing something (a way of allowing the apt-get upgrade to only upgrade some of the debs), or I could fall back on the following:

wget -q -O- 'https://ceph.com/packages/ceph-extras/debian/pool/main/t/tgt
/tgt_1.0.38-14.e884cd.precise.ceph_amd64.deb' > /tmp/local.deb
sudo dpkg -i /tmp/local.deb

Of course, the actual code would do a lot of the figuring (it won't be so
hardcoded). This does use dpkg instead of apt-get and has the problem that the new tgt would not be seen in the apt-get index.

Now that I have looked at things a little bit more. I think I've figured this out. The apt-get update updates the package cache but does not install things. I should not do an upgrade but instead just apt-get install the new tgt after i get it locally. So the steps are just:

add the ceph-extras.list file
apt-get update
apt-get install tgt

A new version has been pushed to origin.

The one issue at this point is developing reasonable test scripts. We still may have to modify this to incorporate some of the behavior that the rbd task does in order to get test cases running. We can write simple cases that write to the device and read from the rbd.

The /dev/disk/by-path link can be used to find the physical device name.

A new version of wip-teuthology-tgt-wusui has been pushed to origin

I believe that this one is ready for prime time.

Please review. Thanks.