Init cluster error on master role

[nawarajshahi]

hey @timothystewart6,
I am currently trying to deploy this to my ubuntu 22.04 vms and I keep getting the undefined variable errors.

Expected Behavior

master node role should copy the templates to destination as noted on the roles

Current Behavior

This should copy the templates to destination as noted on the roles but it fails to template the files under templates folder for master role.

##error

TASK [k3s/master : Init cluster inside the transient k3s-init service] **************************************************************************************************************************
fatal: [192.168.33.119]: FAILED! => 
  msg: |-
    The task includes an option with an undefined variable. The error was: {% if groups['master'] | length > 1 %}
      {% if ansible_hostname == hostvars[groups['master'][0]]['ansible_hostname'] %}
        --cluster-init
      {% else %}
        --server https://{{ hostvars[groups['master'][0]].k3s_node_ip }}:6443
      {% endif %}
      --token {{ k3s_token }}
    {% endif %} {{ extra_server_args | default('') }}: 'ansible.vars.hostvars.HostVarsVars object' has no attribute 'k3s_node_ip'
  
    The error appears to be in '/home/nabu/repos/projects/k3s-ansible/roles/k3s/master/tasks/main.yml': line 62, column 3, but may
    be elsewhere in the file depending on the exact syntax problem.
  
    The offending line appears to be:
  
  
    - name: Init cluster inside the transient k3s-init service
      ^ here
fatal: [192.168.33.120]: FAILED! => 
  msg: |-
    The task includes an option with an undefined variable. The error was: {% if groups['master'] | length > 1 %}
      {% if ansible_hostname == hostvars[groups['master'][0]]['ansible_hostname'] %}
        --cluster-init
      {% else %}
        --server https://{{ hostvars[groups['master'][0]].k3s_node_ip }}:6443
      {% endif %}
      --token {{ k3s_token }}
    {% endif %} {{ extra_server_args | default('') }}: 'ansible.vars.hostvars.HostVarsVars object' has no attribute 'k3s_node_ip'
  
    The error appears to be in '/home/nabu/repos/projects/k3s-ansible/roles/k3s/master/tasks/main.yml': line 62, column 3, but may
    be elsewhere in the file depending on the exact syntax problem.
  
    The offending line appears to be:
  
  
    - name: Init cluster inside the transient k3s-init service
      ^ here

Steps to Reproduce

changed all the required lines under hosts.ini and all.yaml

Context (variables)

ubuntu 22.04 running on proxmox vm

##Question
Do you have any suggestions for resolving this issue?

[timothystewart6]

be sure to check #20 This works on 22.04, we test it in CI with 22.04

[nawarajshahi]

thanks for the suggestion @timothystewart6 and also, a huge thanks for putting all this together. I had used this a couple of months go and was successfully able to deploy HA k3s cluster. I decided to give it a go today and had some hiccups.

Thanks again!

[pramitbiswas]

I get an error in the exact location.

hostvars[groups['master'][0]] is fine, but for other master IP (i.e., else block: --server https://{{ hostvars[groups['master'][0]].k3s_node_ip | split(",") | first | ansible.utils.ipwrap }}:6443) getting the error. k3s_node_ip (i.e., 192.168.30.39) probably not in the hostvars[groups['master'][0]].

The task includes an option with an undefined variable. The error was: {% if groups['master'] | length > 1 %}\n  {% if ansible_hostname == hostvars[groups['master'][0]]['ansible_hostname'] %}\n    --cluster-init\n  {% else %}\n    --server https://{{ hostvars[groups['master'][0]].k3s_node_ip | split(\",\") | first | ansible.utils.ipwrap }}:6443\n  {% endif %}\n  --token {{ k3s_token }}\n{% endif %} {{ extra_server_args | default('') }}: Unable to look up a name or access an attribute in template string ({% if groups['master'] | length > 1 %}\n  {% if ansible_hostname == hostvars[groups['master'][0]]['ansible_hostname'] %}\n    --cluster-init\n  {% else %}\n    --server https://{{ hostvars[groups['master'][0]].k3s_node_ip | split(\",\") | first | ansible.utils.ipwrap }}:6443\n  {% endif %}\n  --token {{ k3s_token }}\n{% endif %} {{ extra_server_args | default('') }}).\nMake sure your variable name does not contain invalid characters like '-': descriptor 'split' for 'str' objects doesn't apply to a 'AnsibleUndefined' object

ansible [core 2.12.10]
python version = 3.9.5
nodes dist: Raspbian

[pramitbiswas]

@timothystewart6, can you provide an example/expected output of --server https://{{ hostvars[groups['master'][0]].k3s_node_ip | split(",") | first | ansible.utils.ipwrap }}:6443.

[actdiux]

I ended up here with the same error. I got past that error by changing

# interface which will be used for flannel
flannel_iface: "enp2s0"
#flannel_iface: "eth0"

after I noticed this part of the error
--node-ip={{ k3s_node_ip }}: {{ ansible_facts[flannel_iface][\"ipv4\"][\"address\"] }}: 'dict object' has no attribute 'eth0'

hope it helps the next person

[pramitbiswas]

Thanks, but in my case, all interfaces are eth0. Checked with "{{ ansible_default_ipv4.interface }}" as well as manually from ifconfig. Infact, I do not get error for creating k3s_node_ip var. Rather, hostvars[groups['master'][0]] dict has no attribute k3s_node_ip (i.e., the IP denoted by it).

[pramitbiswas]

"{{ hostvars[groups['master'][0]].ansible_facts[flannel_iface]['ipv4']['address'] | split(',') | first | ansible.utils.ipwrap }}" this is fine but not {{ hostvars[groups['master'][0]].k3s_node_ip | split(",") | first | ansible.utils.ipwrap }}.