feat: add option to prepare iscsid to support storage providers

defaults/main.yml

@@ -53,3 +53,5 @@ k3s_server_resource_creations: []
 k3s_server_resource_patches: []
 
 k3s_node_labels: {}
+
+k3s_iscsi_enabled: False

handlers/main.yml

@@ -8,3 +8,13 @@
   listen: __k3s_restart
   become: True
   become_user: root
+
+- name: Restart iscsid service
+  service:
+    name: iscsid
+    state: restarted
+    daemon_reload: yes
+    enabled: yes
+  listen: __iscsid_restart
+  become: True
+  become_user: root

molecule/rocky9/converge.yml

@@ -30,6 +30,7 @@
     #         token: "{{ hcloud_token | b64encode }}"
     k3s_node_labels:
       node.kubernetes.io/exclude-from-external-load-balancers: "true"
+    k3s_iscsi_enabled: True
   pre_tasks:
     - name: Override host variables
       set_fact:

molecule/rocky9/tests/test_default.py

@@ -14,6 +14,12 @@ def test_k3s_running_and_enabled(host):
     assert k3s.is_enabled
 
 
+def test_iscsid_running_and_enabled(host):
+    k3s = host.service("iscsid")
+    assert k3s.is_running
+    assert k3s.is_enabled
+
+
 def test_k3s_node_ready(host):
     jsonpth = '{range .items[*]}{@.metadata.name}:{range @.status.conditions[?(@.type=="Ready")]}{@.type}={@.status};{end}{end}'  # noqa
     nodes = host.run(f"k3s kubectl get nodes -o jsonpath='{jsonpth}'").stdout

tasks/iscsi.yml

@@ -0,0 +1,26 @@
+---
+- block:
+    - name: Ensure iscsi is installed
+      package:
+        name: "{{ item }}"
+        state: present
+      loop:
+        - iscsi-initiator-utils
+
+    - name: Configure iscsi-initiator
+      copy:
+        content: "InitiatorName=$(/sbin/iscsi-iname)"
+        dest: /etc/iscsi/initiatorname.iscsi
+        owner: root
+        group: root
+        mode: 0644
+      notify: __iscsid_restart
+
+    - name: Ensure iscsid service is up and running
+      service:
+        name: iscsid
+        daemon_reload: True
+        enabled: True
+        state: started
+  become: True
+  become_user: root

tasks/main.yml

@@ -5,3 +5,5 @@
 - include_tasks: init.yml
   when: k3s_server | bool
 - include_tasks: setup.yml
+- incluse_tasks: iscsi.yml
+  when: k3s_iscsi_enabled | bool