Getting attributes from with_inventory_hostnames

Archives Ansible Developer
1

Hi ,

I am generating an inventory file dynamically for each cluster using templates and store it in inventory folder. Below is how the inventory files looks.

Filename: leo
`
[gapp]
gapp[01:02]-leo.dev.com role=gapp
[papp]
papp[01:02]-leo.dev.com role=papp
[relay]
relay[01:02]-leo.dev.com role=relay
[web]
web[01:02]-leo.dev.com

[leo:children]
relay
web
papp
gapp

I then use the following task to output the value

`

  • debug: msg=“{{ item }}”
    with_inventory_hostnames: “{{env}}”
    `

output:

`

TASK [provisioning : debug] ****************************************************
ok: [localhost] => (item=papp02-leo.dev.com) => {
“item”: “papp02-leo.dev.com”,
“msg”: “papp02-leo.dev.com”
}
ok: [localhost] => (item=gapp02-leo.dev.com) => {
“item”: “gapp02-leo.dev.com”,
“msg”: “gapp02-leo.dev.com”
}
ok: [localhost] => (item=gapp01-leo.dev.com) => {
“item”: “gapp01-leo.dev.com”,
“msg”: “gapp01-leo.dev.com”
}
ok: [localhost] => (item=relay01-leo.dev.com) => {
“item”: “relay01-leo.dev.com”,
“msg”: “relay01-leo.dev.com”
}
ok: [localhost] => (item=papp01-leo.dev.com) => {
“item”: “papp01-leo.dev.com”,
“msg”: “papp01-leo.dev.com”
}
ok: [localhost] => (item=web01-leo.dev.com) => {
“item”: “web01-leo.dev.com”,
“msg”: “web01-leo.dev.com”
}
ok: [localhost] => (item=relay02-leo.dev.com) => {
“item”: “relay02-leo.dev.com”,
“msg”: “relay02-leo.dev.com”
}
ok: [localhost] => (item=web02-leo.dev.com) => {
“item”: “web02-leo.dev.com”,
“msg”: “web02-leo.dev.com”
}
`

How can i get the “role” attributes for each of the hosts? Is there a better way to acheive this rather than using with_inventory_hostname. with_inventory_hostname allows me to assign the patters like web[01:10] rather than specifying each server instance.

`

2

Something like:

  • debug: msg=“{{ hostvars[item].role }}”
    with_inventory_hostnames: “{{env}}”
3

Hi Matt,

I got it working.

Thanks,
Pawan Venugopal.