DNS related changes

- Added hostname provisioning
- Added nsswitch.conf provisioning
- Added systemd-resolved provisioning

tasks/network.yml

@@ -1,29 +1,49 @@
-- name: copy network configuration files
+- name: Copy network configuration files
   become: true
-  template:
+  ansible.builtin.template:
     src: '{{ item.src }}'
     dest: '{{ item.dest }}'
     owner: root
     group: systemd-network
     mode: '0640'
   loop:
-    - {
-        src: 'templates/network/link1.link.j2',
-        dest: '/etc/systemd/network/98-link1.link'
-      }
-    - {
-        src: 'templates/network/link1.network.j2',
-        dest: '/etc/systemd/network/98-link1.network',
-      }
+    - src: 'templates/network/link1.link.j2'
+      dest: '/etc/systemd/network/98-link1.link'
+
+    - src: 'templates/network/link1.network.j2'
+      dest: '/etc/systemd/network/98-link1.network'
   notify:
     - restart systemd-networkd
     - regenerate initramfs # copies the files into the initramfs for when udev needs them
 
-- name: copy /etc/hosts template
+- name: Set hostname
   become: true
-  template:
-    src: 'hosts.j2'
+  ansible.builtin.hostname:
+    name: '{{ hostname }}'
+    use: systemd
+
+- name: Copy hosts file
+  become: true
+  ansible.builtin.template:
+    src: 'network/hosts.j2'
     dest: '/etc/hosts'
     mode: '0644'
     owner: root
-  notify: restart systemd-networkd
+
+- name: Copy resolved.conf configuration
+  become: true
+  ansible.builtin.template:
+    src: 'network/resolved.j2'
+    dest: '/etc/systemd/resolved.conf'
+    mode: '0644'
+    owner: root
+
+- name: Copy firewall template
+  become: true
+  ansible.builtin.template:
+    src: 'templates/nftables.j2'
+    dest: '/etc/nftables.conf'
+    owner: root
+    group: root
+    mode: '0644'
+  notify: restart nftables