[MM3-users] [Docs] Document on how to deploy mailman suit into HA mode

Hey mailman teams. We deployed mailman suite service for our community, and everything looks good to us now, but we are asking whether there are any documents on how to deploy the mailman suite service into HA mode, any document or conversation will be helpful, thanks!

link: how we deploy mailman suite service in kubernetes: https://github.com/opensourceways/infra-common/tree/master/common-applicatio...

TommyLike openEuler infrastructure 2021/5/10