Most ansible_ssh_* variables were deprecated in Ansible 2.0

[geerlingguy]

In chapter 3 (and probably a few other places), I mention setting variables like ansible_ssh_user in inventory. According to older docs from earlier versions of Ansible 2.x (see hashicorp/packer#3275 (comment)), these usages were silently deprecated (though still work for now as of 2.9.x).

I should update any examples where ansible_ssh_user or other ansible_ssh_* commands are used to use ansible_user (and so on). (Make sure to search entire text; there are also instances in Chapter 7 that I know of.)

[geerlingguy]

This will be fixed in version 1.23 of the book.