Problem setting variable with bond0.11 IPv4 address from the gathered facts.

[Joel Sdc]

Hi, 

I am using Ansible v1.7.1.

I am having trouble using the gathered facts when an interface has bonding and VLANs enabled:

# ansible -m setup testserver

[...]

        "ansible_bond0.11": {

            "active": true,

            "device": "bond0.11",

            "ipv4": {

                "address": "192.168.11.66",

                "netmask": "255.255.255.0",

                "network": "192.168.11.0"

            },

            "macaddress": "d4:ae:52:98:71:1f",

            "mtu": 1500,

            "promisc": false,

            "type": "ether"

        },

[...]

Then, I have a playbook that sets a variable:

Example from a different server that doesn't have bonding or VLANs:

listen_ip: "{{ ansible_eth1.ipv4.address }}"

Example that doesn't work:

listen_ip: "{{ ansible_bond0.11.ipv4.address }}"

Ansible output:

fatal: [testserver] => {'msg': 'AnsibleUndefinedVariable: One or more undefined variables: dict object has no element 11', 'failed': True}

fatal: [testserver] => {'msg': 'AnsibleUndefinedVariable: One or more undefined variables: dict object has no element 11', 'failed': True}

FATAL: all hosts have already failed -- aborting

I have tried different possibilities but they all failed:

"{{ ansible_bond0\.11.ipv4.address }}"

"{{ ansible_bond0\\.11.ipv4.address }}"

"{{ [ansible_bond0.11].ipv4.address }}"

"{{ {ansible_bond0.11}.ipv4.address }}"

"{{ 'ansible_bond0.11'.ipv4.address }}"

I think Ansible is taking the VLAN tag as part of the subgroup in the config...

What is the correct way of selecting the IPv4 address of a bond0.11 interface? 

Thank you in advanced.

Best regards, 

J.

[Matt Martz]

To use a hostvar that contains a '.' you will need to do something such as:

{{ hostvars[inventory_hostname]['ansible_bond0.11']['ipv4']['address'] }}

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Matt Martz
@sivel
sivel.net

[Joel Sdc]

Hi Matt, 

Would this be valid?

"{{ hostvars[{{ ansible_host }}]['ansible_bond0.11']['ipv4']['address'] }}"

This is the playbook:

---

- name: Setup SNMP on testservers

  hosts: testservers

  roles:

    - { role: snmp, snmp_rocommunity: comtestsrv, snmp_listen_ip: "{{ ansible_bond0.11['ipv4']['address'] }}" }

And then:

# cat templates/snmpd.conf.j2

# {{ ansible_managed }}

agentAddress  udp:{{ snmp_listen_ip }}:161

{% for server in snmp_authorized_hosts %}

rocommunity {{ snmp_rocommunity }} {{ server.ip }}/32

{% endfor %}

syslocation {{ snmp_syslocation }}

syscontact {{ snmp_syscontact }} <{{ snmp_syscontact_email }}>

testservers is a group with testserver1 and testserver2, so the "snmp_listen_ip" would be the bond0.11 IPv4 address for each host when creating the snmpd.conf file.

I also tried:

"{{ ['ansible_bond0.11']['ipv4']['address'] }}"

"{{ ansible_bond0.11['ipv4']['address'] }}"

But they also failed..

Thanks again!

J.

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[Michael DeHaan]

>> "{{ hostvars[{{ ansible_host }}]['ansible_bond0.11']['ipv4']['address'] }}"

You'll want to remove the template stuff inside the template stuff:

"{{ hostvars[ansible_host]['ansible_bond0.11']['ipv4']['address'] }}"

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[Joel Sdc]

Hi Michael, 

Just tried, same problem...

"{{ hostvars[ansible_host]['ansible_bond0.11']['ipv4']['address'] }}":

fatal: [testserver1] => {'msg': "AnsibleUndefinedVariable: One or more undefined variables: 'ansible_host' is undefined", 'failed': True}

fatal: [testserver1] => {'msg': "AnsibleUndefinedVariable: One or more undefined variables: 'ansible_host' is undefined", 'failed': True}

fatal: [testserver2] => {'msg': "AnsibleUndefinedVariable: One or more undefined variables: 'ansible_host' is undefined", 'failed': True}

fatal: [testserver2] => {'msg': "AnsibleUndefinedVariable: One or more undefined variables: 'ansible_host' is undefined", 'failed': True}

FATAL: all hosts have already failed -- aborting

Just in case, tried this one also:

"{{ hostvars['ansible_host']['ansible_bond0.11']['ipv4']['address'] }}"

fatal: [testserver1] => {'msg': 'AnsibleError: host not found: ansible_host', 'failed': True}

fatal: [testserver1] => {'msg': 'AnsibleError: host not found: ansible_host', 'failed': True}

fatal: [testserver2] => {'msg': 'AnsibleError: host not found: ansible_host', 'failed': True}

fatal: [testserver2] => {'msg': 'AnsibleError: host not found: ansible_host', 'failed': True}

FATAL: all hosts have already failed -- aborting

Any other ideas?

Thank you!

J.

[Matt Martz]

According to that error, you have not defined a variable called 'ansible_host'.   Where is that variable supposed to be coming from?

The variable that ansible creates that references the current host is called inventory_hostname.  Perhaps you were meaning ansible_hostname?

In either case inventory_hostname is safer to use, as that is what ansible knows about from the inventory, and ansible_hostname is not necessarily the same value as inventory_hostname.

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[Joel Sdc]

Hi Matt, 

I just wanted to say that it worked perfectly as you said.

The correct format is:

"{{ hostvars[inventory_hostname]['ansible_bond0.11']['ipv4']['address'] }}"

Thank you very much.

J.

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