someone use gitlab CI/CD with fleetctl for deploying packs?

It's on my todo list this quarter

Have done it, although our solution did not handle removing no longer used queries

Interesting, how would you be able to tell that the queries were no longer used?

Well, we decided not to use them, so we removed them from all query packs so they never ran on any hosts. But they were not removed from Fleet since our CD strategy was fairly “dumb” and just did

fleetctl apply -f

for the query and pack configurations

if they're not in the config when doing the apply, they don't get removed from Fleet?

No. You need to specifically delete them if you want them gone.

That makes sense.

interesting, is there an api to remove the unsed queries? I was thinking to remove them all before to apply the updated packs

No, but your CD system could

fleetctl delete -f

them assuming each query is in its own file