Register variable using {{ item }}

[R.B_Kumar]

Hello Everyone again - Trying to get the IP address of the multiple Interfaces from a Cisco Router and register it. Using {{ item }} loop method to feed the Multiple Interfaces (eg: GigabitEthernet 0/0/0) in the command.

How to get the unique variables for each interface? I will pick those variables and going to use it in the same script.

For example i want to pint the IP address of GigabitEthernet 0/0/0, GigabitEthernet 0/0/1, GigabitEthernet 0/0/2,

Script:

• name: get_ip
  ios_command:
  commands: “show ip interface brief {{ item }}”
  register: var_ip_addr_{{ item }}

with_items:

• gigabitEthernet 0/0/0

• gigabitEthernet 0/0/1

• gigabitEthernet 0/0/2

regards,RB

[R.B_Kumar]

All - I realised it is not possible or good idea to use {{ item }} in register. So i modified the code as below. So, now for all the three interface (GigabitEthernet 0/0/0,
Loopback 0) are captured in the same output and registered in var_ip_addr

The challenge now is, i have to grep IP address value from the output var_ip_addr. The IP address located under stdout. There are multiple stdout for each interface. How to grep the corresponding IP address from the output. debug: var=“var_ip_addr.results[0].stdout[0].split(‘\n’)[1].split()[1]” picks only the first interface. The control is not moving the subsequent Interfaces as the records are in the common hierarchy under result.

Script

• name: get_ip
  ios_command:
  provider: “{{ cli }}”
  commands: “show ip interface brief {{ item }}”
  register: var_ip_addr

with_items:

• gigabitEthernet0/0/0
• Loopback 0

- debug: var=var_ip_addr

- debug: var=“var_ip_addr.results[0].stdout[0].split(‘\n’)[1].split()[1]”

Output of var_ip_addr

TASK [debug] *************************************************************************************************************************
ok: [labrtr2] => {
“var_ip_addr”: {
“changed”: false,
“msg”: “All items completed”,
“results”: [
{
“_ansible_ignore_errors”: null,
“_ansible_item_label”: “gigabitEthernet0/0/0”,
“_ansible_item_result”: true,
“failed”: false,
“invocation”: {
“module_args”: {
“auth_pass”: null,
“commands”: [
“show ip interface brief gigabitEthernet0/0/0”
],
“host”: null,
“provider”: {
“auth_pass”: null,
},
}
},
“item”: “gigabitEthernet0/0/0”,
“stdout”: [
“Interface IP-Address OK? Method Status Protocol\nGigabitEthernet0/0/0 42.151.182.42 YES DHCP up up”
],
“stdout_lines”: [
[
“Interface IP-Address OK? Method Status Protocol”,
“GigabitEthernet0/0/0 42.151.182.42 YES DHCP up up”
]
]
},
{
“_ansible_ignore_errors”: null,
“_ansible_item_label”: “Loopback 0”,
“invocation”: {
“module_args”: {
“auth_pass”: null,
“commands”: [
“show ip interface brief Loopback 0”
],
“host”: null,
“provider”: {
“auth_pass”: null,
},
}
},
“item”: “Loopback 0”,
“stdout”: [
“Interface IP-Address OK? Method Status Protocol\nLoopback0 172.31.246.246 YES NVRAM up up”
],
“stdout_lines”: [
[
“Interface IP-Address OK? Method Status Protocol”,
“Loopback0 172.31.246.246 YES NVRAM up up”
]
]
}
]
}
}

[vbotka (Vladimir Botka)]

For example

    - set_fact:
        interfaces: "{{ interfaces|default({})|
                        combine({_arr.0: _arr.1}) }}"
      loop: "{{ var_ip_addr.results|
                json_query('.stdout_lines') }}"
      vars:
        _arr: "{{ item.0.1.split() }}"

should give

  interfaces:
    GigabitEthernet0/0/0: 42.151.182.42
    Loopback0: 172.31.246.246

[R.B_Kumar]

Thank you Vladimir - Much appreciated your response. Unfortunately, I am a ansible noob and trying to learn the things for a realtime network requirements

If you can help me where the lines you shown here will fit in my script. My script is below

• name: get_ip
  ios_command:
  provider: “{{ cli }}”
  commands: “show ip interface brief {{ item }}”
  register: var_ip_addr

with_items:

• gigabitEthernet0/0/0
• Loopback 0
  I have to use var_ip_addr in other places in the script such as configuring ACL.

For example I would look for GigabitEthernet 0/0/0 IP address from the var_ip_addr and use it in ACL. Again in the same script i will look for Loopback 0 in var_ip_addr and use it to configure router ID… Just for example.

Can you help me explaining how the instruction you provided will help here? Thanks

regards,RB

[vbotka (Vladimir Botka)]

- set_fact:
        interfaces: "{{ interfaces|default({})|
                        combine({_arr.0: _arr.1}) }}"
      loop: "{{ var_ip_addr.results|
                json_query('.stdout_lines') }}"
      vars:
        _arr: "{{ item.0.1.split() }}"

    - debug:
        msg: "{{ interfaces[item] }}"
      loop:
        - GigabitEthernet0/0/0
        - Loopback0

gives

  msg: 42.151.182.42
  msg: 172.31.246.246

[R.B_Kumar]

Thank you Vladimir. I will try in to add in my script and try. Thanks again a lot

[pradnya_waghmare]

hi there,

I am facing issue about winrm.

getting winrm or request is not installed no module name winrm msg.

can anyone help
trying to connect to window machine.

[manoj_kumar]

Please install pywinrm module on your ansible node

Pip install pywinrm

[pradnya_waghmare]

yes…I did same but after win_ping command I am getting no winrm module found error.

[manoj_kumar]

if you installed winrm module through yum, it wouldnt not recognise it. I suggest you remove it and install it using pip.

Also, sharing error screenshot, inventory would help.

[The_Vandyy_Vines]

Check if winrm is installed on window server….

Test-wsman

[pradnya_waghmare]

hi,

inventory file is as below:

[win]
ansible_host=10.128.28.140

[win:vars]
ansible_user=pradnya.waghmare
ansible_pass=*****
anaible_port=5986
ansible_connection=winrm
ansible_winrm_server_cert_validation= ignore

and below is error after pip install pywinrm

thanks

(attachments)

[pradnya_waghmare]

typed Test-wsman command on powersell .got below response.

(attachments)