[external-dns] Default PDB is incompatible with default replica count about charts HOT 2 CLOSED

Hi @rouke-broersma, PR #26292 applies your suggestions keeping pdb.minAvailable and pdb.maxUnavailable values empty.

Thanks a lot for sharing your thoughts here.

NOTE: Previous configuration (pdb.minAvailable=1 by default) shouldn't affect rolling updates. That configuration impacts on maintenance actions like draining nodes.

from charts.

I agree with @rouke-broersma

If we're enabling PDB by default with one replica, we should set pdb.maxUnavailable instead. Otherwise, rolling updates could be affected.

pdb:
  create: true
  minAvailable: ""
  maxUnavailable: 1

from charts.