Fix draining of slots having a startd name

[giffels]

TARDIS supports running more than one Drone on the same host. To differentiate the drones, the tardis-uuid has been introduced and will be set as STARTD_NAME on the corresponding sites. The HTCondor Name in this case is

slot1@tardis-uuid@hostname

Due to backward compatibility for sites running only one Drone per host, TARDIS supports also drones without having a STARTD_NAME. Leading to

slot1@hostname

as HTCondor Name.

Currently, TARDIS drains drones by using just its hostname (HTCondor Machine)

condor_drain -graceful hostname

which does not work in case multiple drones running on the same host. This pull request fixes this bug by using the HTCondor Name instead.

condor_drain -graceful slot1@tardis-uuid@hostname

[codecov-io]

Codecov Report

Merging #123 into master will increase coverage by 0.01%.
The diff coverage is 100%.

@@            Coverage Diff            @@
##           master    #123      +/-   ##
=========================================
+ Coverage   97.68%   97.7%   +0.01%     
=========================================
  Files          39      39              
  Lines        1424    1435      +11     
=========================================
+ Hits         1391    1402      +11     
  Misses         33      33

Impacted Files	Coverage Δ
tardis/adapters/batchsystems/htcondor.py	100% <100%> (ø)	⬆️
tardis/adapters/sites/openstack.py	100% <0%> (ø)	⬆️
tardis/adapters/sites/htcondor.py	100% <0%> (ø)	⬆️
tardis/adapters/sites/moab.py	100% <0%> (ø)	⬆️
tardis/utilities/pipeline.py	100% <0%> (ø)	⬆️
tardis/interfaces/siteadapter.py	100% <0%> (ø)	⬆️
tardis/utilities/asynccachemap.py	100% <0%> (ø)	⬆️
tardis/adapters/sites/cloudstack.py	100% <0%> (ø)	⬆️
tardis/adapters/sites/slurm.py	100% <0%> (ø)	⬆️
tardis/interfaces/executor.py	80% <0%> (+5%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 546a3b5...312bd61. Read the comment docs.

[eileen-kuehn]

I think it looks good. I added one comment as I don't know if both Machine and Name should be given.

[maxfischer2781]

No objections. Good to see Tardis supports this now!

[eileen-kuehn]

Go for it 👍