Register variable using {{ item }}

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R.B. Kumar

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May 28, 2021, 6:53:10 AM5/28/21
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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

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May 28, 2021, 9:05:19 AM5/28/21
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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"
                    ]
                ]
            }
        ]
    }
}

Vladimir Botka

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May 28, 2021, 10:13:21 AM5/28/21
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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


--
Vladimir Botka

R.B. Kumar

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May 28, 2021, 11:21:43 AM5/28/21
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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 

Vladimir Botka

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May 28, 2021, 11:44:35 AM5/28/21
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On Fri, 28 May 2021 08:21:43 -0700 (PDT)
"R.B. Kumar" <seeku...@gmail.com> wrote:

> ... 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

- 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

--
Vladimir Botka

R.B. Kumar

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May 28, 2021, 12:10:55 PM5/28/21
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Thank you Vladimir. I will try in to add in my script and try. Thanks again a lot

pradnya waghmare

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May 29, 2021, 2:13:57 PM5/29/21
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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.

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manoj kumar

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May 29, 2021, 11:41:46 PM5/29/21
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Please install pywinrm module on your ansible node 

Pip install pywinrm 

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Thanks and Regards
Manoj Kumar MS

pradnya waghmare

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May 30, 2021, 4:19:20 AM5/30/21
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yes..I did same but after win_ping command I am getting no winrm module found error.

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manoj kumar

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May 30, 2021, 8:19:19 AM5/30/21
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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.

Thanks and Regards
Manoj Kumar MS

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The Vandyy Vines

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May 30, 2021, 8:52:07 AM5/30/21
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Check if winrm is installed on window server….

Test-wsman 



pradnya waghmare

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May 30, 2021, 1:13:29 PM5/30/21
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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 

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image001.png

pradnya waghmare

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May 30, 2021, 1:19:58 PM5/30/21
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typed Test-wsman command on powersell .got below response.


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IMG_20210530_224744.jpg
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