group_vars yaml

[aleks_first]

page 20 from course 9.0 see:

"To define group variables for the servers group, you would create a YAML file named group_vars/servers.yml, and then the contents of that file would set variables to values"
but in the same page in examples you shows files without yaml. 

"

• If you need to define difference values for each data center, set a group variable for each data center host group:

  [admin@station project]$ cat ~/project/group_vars/datacenter1 package: httpd [admin@station project]$ cat ~/project/group_vars/datacenter2 package: apache

  Finally what is correct? 

[HaraldPaterek]

It does not really matter. It can even be a json formatted file.

[Travis]

So the book might be a bit unclear, but it does show the YAML ...

group_vars/servers.yml

user: joe

Technically, that is a valid YAML. It doesn't have the usual "---" at the top and almost nobody uses the "..." at the bottom anymore. 

I'm guessing you would have rather seen the example shown like this ...

[admin@station project]$  cat group_vars/servers.yml
user: joe

To show that is what was in the file and you would like to have seen ...

project
├── ansible.cfg
├── group_vars
│   ├── datacenters
│   ├── datacenters1
│   └── datacenters2
│   ├── servers
├── host_vars
│   ├── demo1.example.com
│   ├── demo2.example.com
│   ├── demo3.example.com
│   └── demo4.example.com
├── inventory
└── playbook.yml

To be a more complete and runnnig example?

The thing to keep in mind is that all the variables get added together and if a variable is defined with different values in different places, generally speaking the more "specific" or "narrowly-scoped" wins. It is extremely important to understand how to work with variables and understand the variable precedence.