Rework Role Structure (#254)

* Add more defaults
* Rename roles, covert download to airgap role
* Remove unnecessary gather_facts

Signed-off-by: Derek Nola <derek.nola@suse.com>

roles/k3s_upgrade/defaults/main.yml

@@ -0,0 +1,2 @@
+---
+systemd_dir: /etc/systemd/system

roles/k3s_upgrade/tasks/main.yml

@@ -0,0 +1,34 @@
+---
+# with_fileglob doesn't work with remote_src, it tries to find the file on the
+# local control-plane instead of the remote host. Shell supports wildcards.
+- name: Save current K3s service
+  ansible.builtin.shell:
+    cmd: "cp {{ systemd_dir }}/k3s*.service /tmp/"
+  changed_when: true
+
+- name: Install new K3s Version
+  ansible.builtin.command:
+    cmd: /usr/local/bin/k3s-install.sh
+  environment:
+    INSTALL_K3S_SKIP_START: "true"
+    INSTALL_K3S_VERSION: "{{ k3s_version }}"
+  changed_when: true
+
+- name: Restore K3s service
+  ansible.builtin.shell:
+    cmd: "mv /tmp/k3s*.service {{ systemd_dir }}/"
+  changed_when: true
+
+- name: Restart K3s service [server]
+  when: "'server' in group_names"
+  ansible.builtin.systemd:
+    state: restarted
+    daemon_reload: true
+    name: k3s
+
+- name: Restart K3s service [agent]
+  when: "'agent' in group_names"
+  ansible.builtin.systemd:
+    state: restarted
+    daemon_reload: true
+    name: k3s-agent