how to use a variable from one task to another task

Archives Ansible Project
1

Team,

I would like to use the variable i got from one ansible task to another task where hosts are different.

Please help me use the variable to use it on another task!!

2

When i try to use/inoke on another task, i get error as sec_tunnel_ip is undefined.

3

Those variables are scoped to a host, so they’re not available to other hosts.
A common trick is to assign them to a dummy host and access them that way.

4

https://stackoverflow.com/questions/39207616/if-set-fact-is-scoped-to-a-host-can-i-use-dummy-host-as-a-global-variable-map

5

Thanks a lot, Dick Visser, I just wanted to access it, even with a dummy hostname is ok. let me try that.

6

One more help needed, When I try to do regex to get the ip output, it comes along with the unicode characters such as - [u’
how to eliminate it while grepping it through regex_search itself.

Actual output: “- [u’172.16.121.6’]\n”

I want it to be(expected): 172.16.121.6

  • name: Obtain secondary tunnel interface ip address
    ios_command:
    commands:
  • “show interface tunnel1 | sec Internet address”
    register: output
  • debug:
    msg: “{{ output.stdout}}”
  • set_fact:
    intf: |
  • {{output.stdout | map(‘regex_search’,‘(([0-9]+(.)[0-9]+(.)[0-9]+(.)[0-9]+))’) | list }}
    register: sec_tunnel_ip
  • debug:
    msg={{ sec_tunnel_ip }}

Output:

7

You're sending only the output of the debug task with the regex_search
applied to the output.stdout variable.
We need to see the output.stdout variable before you mangled it.

8

Hi Dick, Below is the complete output of the playbook,

[root@tower1 temp_play]# ansible-playbook testplay2.yml -i /etc/ansible/temp_play/hosts

PLAY [Get the secondary router tunnel ip address] *****************************************************************

TASK [Obtain secondary tunnel interface ip address] ***************************************************************
ok: [172.16.12.1]

TASK [debug] ******************************************************************************************************
ok: [172.16.12.1] => {
“msg”: [
“Internet address is 172.16.121.6/32”
]
}

TASK [set_fact] ***************************************************************************************************
ok: [172.16.12.1]

TASK [debug] ******************************************************************************************************
ok: [172.16.12.1] => {
“msg”: {
“ansible_facts”: {
“intf”: “- [u’172.16.121.6’]\n”
},
“changed”: false,
“failed”: false
}
}

PLAY RECAP ********************************************************************************************************
172.16.12.1 : ok=4 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0

[root@tower1 temp_play]#

Thanks,
Charles Daniel

9

Hi Dick, Below is the complete output of the playbook,

[root@tower1 temp_play]# ansible-playbook testplay2.yml -i /etc/ansible/temp_play/hosts

PLAY [Get the secondary router tunnel ip address] *****************************************************************

TASK [Obtain secondary tunnel interface ip address] ***************************************************************
ok: [172.16.12.1]

TASK [debug] ******************************************************************************************************
ok: [172.16.12.1] => {
"msg": [
"Internet address is 172.16.121.6/32 <http://172.16.121.6/32&gt;&quot;
]
}

Hello Charles,

the output looks like a string, so the map filter doesn't makes sense here.

Please try:

{{output.stdout | regex_search('(([0-9]+(.)[0-9]+(.)[0-9]+(.)[0-9]+))') }}

Regards
           Racke

10

Try “{{ output.stdout[0] }}” on the debug task

11

returns error as a pattern not matching!!.

TASK [debug] ******************************************************************************************************
ok: [172.16.12.1] => {
“hostvars[‘SEC_HOST’][‘sec_tunnel_ip1’]”: “- [None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None]\n”
}

12

no need for dummy, just use hostvars[<host that has var>][<varname>]

if you set the vars on a group you can
hostvars[group[<groupname>][0]][<varname>] ( 0 is 'first host in
group, but you can use random index <= # of hosts in group)

13

Thanks Brian