Add flag to "thanos tools bucket ls" to exclude marked blocks

[snuggie12]

Is your proposal related to a problem?

I was trying to prepare a for loop to do rewrites and accidentally did rewrites on blocks that were marked for deletion. This ended up creating overlaps which prevented compactor from starting up.

Describe the solution you'd like

It'd be nice if ls had an option to exclude blocks marked for deletion.

Describe alternatives you've considered

Alternatively maybe rewrite should refuse to rewrite a block marked for deletion?

[yeya24]

@snuggie12 Makes sense. This filtering can be done at the fetcher filters. Help wanted!

[metonymic-smokey]

@snuggie12 , just to clarify, ls will also need an option for deleteDelay too right, since blocks marked for deletion are filtered based on the delay?