linode-dyndns: pull image, use image tag when creating the container, and have podman generate systemd units

roles/linode-dyndns/tasks/main.yml

@@ -7,10 +7,17 @@
     skip_existing: yes
     data: {{ linode_api_key }}
 
+- name: Pull linode-dyndns container image
+  podman_image:
+    name: {{ image_name }}
+    pull: yes
+    state: present
+    tag: {{ image_tag }}
+
 - name: Create and start linode-dyndns container
   podman_container:
     name: linode-dyndns_{{ subdomain }}
-    image: docker.io/kvllsvm/linode-dynamic-dns:latest
+    image: {{ image_name }}:{{ image_tag }}
     state: started
     restart_policy: always
     network: host
@@ -24,3 +31,5 @@
       - name: FREQUENCY
         value: {{ update_frequency }}
     command: "/bin/sh -c 'export TOKEN=$(cat /run/secrets/linode_dns_apikey) && linode-dynamic-dns -s $FREQUENCY'"
+    generate_systemd:
+      path: {{ systemd_system_unit_path }}