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batrick / ceph-linode

Launch Ceph using the Linode VPS provider
GNU General Public License v3.0
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would like launch.sh option to just create the linodes and not run ceph-ansible #39

Closed bengland2 closed 3 years ago

bengland2 commented 5 years ago

There are cases where it is desirable to create the linodes but do some additional steps before you run ceph-ansible. Example: when a new RHCS release comes out, centos doesn't have all the RPMs that it depends on, so you have to insert a repo containing those RPMs before you can install Ceph.

Suggestion: if the user doesn't specify the --ceph-ansible argument to launch.sh, just have launch.sh skip ceph-ansible and warn the user that they have to do it. The nice thing about launch.sh is that it's idempotent - if you already created the linodes, then linode-launch.py won't create them again. But it takes a long time for ceph-ansible to fail so just running launch.sh twice as it is today can be very expensive. So a user could do something like this:

launch.sh
# <make necessary changes to cluster hosts before running ceph-ansible
launch.sh --ceph-ansible /usr/share/ceph-ansible

Or they could just run ceph-ansible directly. If you agree with this, I could submit a PR for it, it's trivial to do.

bengland2 commented 5 years ago

I'm just faking it for now by creating a dummy ceph-ansible tree with

mkdir -p /tmp/ceph-ansible/roles touch /tmp/ceph-ansible/site.yml launch.sh --ceph-ansible /tmp/ceph-ansible

batrick commented 5 years ago

This change is cool with me.

batrick commented 3 years ago

Think this is obsolete now with the use of cephadm.