Answers for "crete admin user mongo"

mongodb create admin user for all databases

use admin
db.createUser({ user: "mongoadmin" , pwd: "mongoadmin", roles: ["userAdminAnyDatabase", "dbAdminAnyDatabase", "readWriteAnyDatabase"]})

mongo create user

db.createUser(
  { 
    user: "user_name", 
    pwd: "password", 
    roles: [
      "userAdminAnyDatabase", 
      "dbAdminAnyDatabase", 
      "readWriteAnyDatabase"
    ]
  }
)