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[Unit]
Description=Lightweight Kubernetes
Documentation=https://k3s.io
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{% for requires_unit in k3s_service_requires %}
Requires={{ requires_unit }}
{% endfor %}
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Wants=network-online.target
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{% for wants_unit in k3s_service_wants %}
Wants={{ wants_unit }}
{% endfor %}
{% for before_unit in k3s_service_before %}
Before={{ before_unit }}
{% endfor %}
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After=network-online.target
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{% for after_unit in k3s_service_after %}
After={{ after_unit }}
{% endfor %}
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[Service]
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Type={{ 'notify' if k3s_control_node else 'exec' }}
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{% if k3s_service_env_vars is defined and k3s_service_env_vars is iterable %}
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{% for env_var in k3s_service_env_vars %}
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Environment={{ env_var }}={{ k3s_service_env_vars[env_var] }}
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{% endfor %}
{% endif %}
{% if k3s_service_env_file is defined and k3s_service_env_file %}
EnvironmentFile={{ k3s_service_env_file }}
{% endif %}
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ExecStartPre=-/sbin/modprobe br_netfilter
ExecStartPre=-/sbin/modprobe overlay
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{% filter regex_replace('\s+', ' ') %}
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{% filter replace('\n', ' ') %}
ExecStart={{ k3s_install_dir }}/k3s
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{% if k3s_debug is defined and k3s_debug %}
--debug
{% endif %}
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{% if k3s_control_node %}
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server
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{% if (k3s_etcd_datastore is defined and k3s_etcd_datastore) and (k3s_primary_control_node is not defined or not k3s_primary_control_node) and k3s_controller_list | length > 1 %}
fix: restore clustering feature
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
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--server https://{{ k3s_registration_address }}:{{ k3s_control_plane_port | default(6443) | string }}
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{% endif %}
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{% if k3s_server is defined %}
--config {{ k3s_config_file }}
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{% endif %}
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{% if k3s_token_location %}
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--token-file {{ k3s_token_location }}
{% endif %}
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{% else %}
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agent
fix: restore clustering feature
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
2021-07-21 14:37:17 +02:00
--server https://{{ k3s_registration_address }}:{{ k3s_control_plane_port | default(6443) | string }}
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--token-file {{ k3s_token_location }}
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{% if k3s_agent is defined %}
--config {{ k3s_config_file }}
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{% endif %}
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{% endif %}
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{% endfilter %}
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{% endfilter %}
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KillMode=process
Delegate=yes
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LimitNOFILE=1048576
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LimitNPROC=infinity
LimitCORE=infinity
TasksMax=infinity
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TimeoutStartSec=0
Restart=always
RestartSec=5s
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[Install]
WantedBy=multi-user.target