ansible_hostname in with_items

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1

Hi Team

I am writing a playbook to automate assigning an IP address to a set of hosts, however, I am stuck at pulling IP details from vars_files. below is the code, any pointers will be much helpful to me. thank you.

vars_files:

[root@dljdaprdqmc1v commvault]# cat host_ip.yml
dlabcpdtmdb1v: 172.20.0.63
[root@dljdaprdqmc1v commvault]#

[root@dljdaprdqmc1v commvault]# cat check_ip.yml

2

vars_files:

[root@dljdaprdqmc1v commvault]# cat host_ip.yml
dlabcpdtmdb1v: 172.20.0.63
[root@dljdaprdqmc1v commvault]#

[root@dljdaprdqmc1v commvault]# cat check_ip.yml
---
- hosts: all
  remote_user: root
  vars_files:
  - host_ip.yml
  tasks:
  - shell: ip a s | grep DOWN | /bin/awk -F":" '{$2=$2;print}' | /bin/awk
'{print $2}'
    register: nic
    ignore_errors: yes
  - stat: path=/etc/sysconfig/network-scripts/ifcfg-{{nic.stdout}}
    register: nicfile
    ignore_errors: yes
  - lineinfile: path=/tmp/ifcfg-{{nic.stdout}} line={{item}} create=yes
    with_items:
    - TYPE=Ethernet
    - BOOTPROTO=static
    - DEFROUTE=yes
    - PEERDNS=yes
    - PEERROUTES=yes
    - IPV4_FAILURE_FATAL=no
    - IPV6INIT=no
    - IPV6_AUTOCONF=no
    - IPV6_DEFROUTE=no
    - IPV6_PEERDNS=no
    - IPV6_PEERROUTES=no
    - IPV6_FAILURE_FATAL=no
    - NAME={{nic.stdout}}
    - DEVICE={{nic.stdout}}
    - ONBOOT=yes
    - IPADDR="{{ansible_hostname}}" <== here i need to get value from host_ip.yml which allocate that host

<snip />

changed: [dlabcpdtmdb1v] => (item=IPADDR=dlabcpdtmdb1v)
ok: [dlabcpdtmdb1v] => (item=NETMASK=255.255.252.0)

as you see IP becomes the hostname, since you need the content of the variable with the same name as the host you need to use vars/hostvars/lookup vars.

So {{ vars[ansible_hostname] }} would give you that, but vars is not a documented feature that is schedule for removal.

So you are left with more unreadable code like

{{ hostvars[inventory_hostname][ansible_hostname] }}

or

{{ lookup('vars', ansible_hostname }}

3

Thanks a lot Kai Stian, it worked well.