Is it a secure way to handle returning user in ember?

I am using ember to write a web ui for a site that requires user to log in. Suppose the browser has stored some cookie from last login of a user. Now the user visits the site again. So, is it a secure and common way for ember to log the user in automatically based on the cookie from the last visit? If so, what are the common ways to implement this? (I can't find anything from Google.) Furthermore, how do I create the cookie upon login? Is it a common way to just put a user id, password hash, and expiration in the cookie?

Additionally, any references related to this subject are greatly appreciated.