rs.sh

rs.initiate({
  _id: 'rs0',
  members: [
    {_id: 0, host: 'mongodb-0.mongodb-headless-service:27017'},
    {_id: 1, host: 'mongodb-1.mongodb-headless-service:27017'},
    {_id: 2, host: 'mongodb-2.mongodb-headless-service:27017'}
  ]
})