Fix CI (#332)

* Update pre-commit actions

This was done by running "pre-commit autoupdate --freeze".

* Remove pre-commit only dependencies from requirements.in

Including them in the file would create the illusion that those were the
versions actually used in CI, but they are not. The exact versions are
determined by the pre-commit hooks which are pinned in
.pre-commit-config.yaml.

* Ansible Lint: Fix role-name[path]

* Ansible Lint: Fix name[play]

* Ansible Lint: Fix key-order[task]

* Ansible Lint: Fix jinja[spacing]

* Ansible Lint: Fix no-free-form

* Ansible Lint: Fix var-naming[no-reserved]

* Ansible Lint: Fix yaml[comments]

* Ansible Lint: Fix yaml[line-length]

* Ansible Lint: Fix name[casing]

* Ansible Lint: Fix no-changed-when

* Ansible Lint: Fix fqcn[action]

* Ansible Lint: Fix args[module]

* Improve task naming

roles/k3s_agent/tasks/main.yml

@@ -0,0 +1,16 @@
+---
+
+- name: Copy K3s service file
+  template:
+    src: "k3s.service.j2"
+    dest: "{{ systemd_dir }}/k3s-node.service"
+    owner: root
+    group: root
+    mode: 0755
+
+- name: Enable and check K3s service
+  systemd:
+    name: k3s-node
+    daemon_reload: yes
+    state: restarted
+    enabled: yes

roles/k3s_agent/templates/k3s.service.j2

@@ -0,0 +1,24 @@
+[Unit]
+Description=Lightweight Kubernetes
+Documentation=https://k3s.io
+After=network-online.target
+
+[Service]
+Type=notify
+ExecStartPre=-/sbin/modprobe br_netfilter
+ExecStartPre=-/sbin/modprobe overlay
+ExecStart=/usr/local/bin/k3s agent --server https://{{ apiserver_endpoint | ansible.utils.ipwrap }}:6443 --token {{ hostvars[groups['master'][0]]['token'] | default(k3s_token) }} {{ extra_agent_args | default("") }}
+KillMode=process
+Delegate=yes
+# Having non-zero Limit*s causes performance problems due to accounting overhead
+# in the kernel. We recommend using cgroups to do container-local accounting.
+LimitNOFILE=1048576
+LimitNPROC=infinity
+LimitCORE=infinity
+TasksMax=infinity
+TimeoutStartSec=0
+Restart=always
+RestartSec=5s
+
+[Install]
+WantedBy=multi-user.target