fix: restore clustering and avoid failure with jinja2_native=true #135
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If you run the role on an ansible configured with that setting, it will fail with:
fatal: [vm0]: FAILED! => {"msg": "Unexpected templating type error occurred on ({% for host in ansible_play_hosts_all %}\n{% filter string %}\n{% filter replace('\\n', ' ') %}\n{{ host }}\n@@@\n{{ hostvars[host].ansible_host | default(hostvars[host].ansible_fqdn) }}\n@@@\nC_{{ hostvars[host].k3s_control_node }}\n@@@\nP_{{ hostvars[host].k3s_primary_control_node | default(False) }}\n{% endfilter %}\n{% endfilter %}\n@@@ END:{{ host }}\n{% endfor %}): sequence item 4: expected str instance, bool found"}
For some weird reason, string booleans were set on `k3s_control_node` and `k3s_primary_control_node`, making their behavior non-obvious (for python `bool("false") == True`).
This fixes that problem, and BTW restores the ability to create clusters, which got lost with this bug.
After running the role against a cluster, see:
```sh
❯ ansible -i inventories/testing.yaml k8s_node -m command -ba 'kubectl get node'
vm0 | CHANGED | rc=0 >>
NAME STATUS ROLES AGE VERSION
vm0 Ready control-plane,etcd,master 9m19s v1.21.2+k3s1
vm2 | CHANGED | rc=0 >>
NAME STATUS ROLES AGE VERSION
vm2 Ready control-plane,etcd,master 9m22s v1.21.2+k3s1
vm1 | CHANGED | rc=0 >>
NAME STATUS ROLES AGE VERSION
vm1 Ready control-plane,etcd,master 9m22s v1.21.2+k3s1
```
Now, after the patch:
```sh
❯ ansible -i inventories/testing.yaml k8s_node -m command -ba 'kubectl get node'
vm0 | CHANGED | rc=0 >>
NAME STATUS ROLES AGE VERSION
vm0 Ready control-plane,etcd,master 2m2s v1.21.2+k3s1
vm1 Ready control-plane,etcd,master 58s v1.21.2+k3s1
vm2 Ready control-plane,etcd,master 80s v1.21.2+k3s1
vm1 | CHANGED | rc=0 >>
NAME STATUS ROLES AGE VERSION
vm0 Ready control-plane,etcd,master 2m2s v1.21.2+k3s1
vm1 Ready control-plane,etcd,master 58s v1.21.2+k3s1
vm2 Ready control-plane,etcd,master 80s v1.21.2+k3s1
vm2 | CHANGED | rc=0 >>
NAME STATUS ROLES AGE VERSION
vm0 Ready control-plane,etcd,master 2m2s v1.21.2+k3s1
vm1 Ready control-plane,etcd,master 58s v1.21.2+k3s1
vm2 Ready control-plane,etcd,master 80s v1.21.2+k3s1
```
@Tecnativa TT2541
yajo
changed the title
|
Hello, dear maintainers. This PR suddenly graduated to being something essential. The role had lost its possibilities to cluster! Quoting from last commit:
|
|
BTW I think there should be some assertion on roles that makes sure nodes got properly clustered. Any clue on how to do that? Thanks! |
I have thoughts, but I am going to be doing a lot of refactoring for v3 (when I have got time...) |
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Summary
If you run the role on an ansible configured with that setting, it will fail with:
Issue type
Test instructions
Just run the playbook prefixing the command with
env ANSIBLE_JINJA2_NATIVE=trueand see that it works now.