3 files changed, 120 insertions, 0 deletions
diff --git a/ansible/roles/linode-dns-update/handlers/main.yml b/ansible/roles/linode-dns-update/handlers/main.yml
new file mode 100644
index 0000000..9d7ba98
--- /dev/null
+++ b/ansible/roles/linode-dns-update/handlers/main.yml
@@ -0,0 +1,10 @@
+- name: systemd daemon-reload
+  become: yes
+  systemd:
+    daemon_reload: true
+
+- name: service start linode-dns-update.timer
+  become: yes
+  service:
+    name: linode-dns-update.timer
+    state: restarted
diff --git a/ansible/roles/linode-dns-update/tasks/main.yml b/ansible/roles/linode-dns-update/tasks/main.yml
new file mode 100644
index 0000000..8b305f8
--- /dev/null
+++ b/ansible/roles/linode-dns-update/tasks/main.yml
@@ -0,0 +1,65 @@
+- when: (linode_dns__ipv4_resource is defined) or (linode_dns__ipv6_resource is defined)
+  become: true
+  tags: linode-dns-update
+  block:
+    - name: /usr/local/bin/linode-dns-update
+      template:
+        src: linode-dns-update.j2
+        dest: /usr/local/bin/linode-dns-update
+        owner: root
+        group: root
+        mode: a=rx,u=rwx
+
+    - name: /etc/systemd/system/linode-dns-update.service
+      notify:
+        - systemd daemon-reload
+      copy:
+        dest: /etc/systemd/system/linode-dns-update.service
+        content: |
+          [Unit]
+          Description=Update DNS entry
+
+          [Service]
+          Type=oneshot
+          ExecStart=/usr/local/bin/linode-dns-update
+          User=nobody
+          Group=systemd-journal
+
+    - name: systemctl enable linode-dns-update.service
+      systemd:
+        name: linode-dns-update.service
+        enabled: yes
+
+    - name: /etc/systemd/system/linode-dns-update.timer
+      notify:
+        - systemd daemon-reload
+        - service start linode-dns-update.timer
+      copy:
+        dest: /etc/systemd/system/linode-dns-update.timer
+        content: |
+          [Unit]
+          Description=Update DNS entry
+
+          [Timer]
+          OnBootSec=5min
+          OnUnitActiveSec=1hour
+
+          [Install]
+          WantedBy=timers.target
+
+    - name: systemctl enable linode-dns-update.timer
+      systemd:
+        name: linode-dns-update.timer
+        enabled: yes
+        state: started
+
+    # Remove old stuff
+    - file:
+        path: /usr/local/bin/update-linode
+        state: absent
+
+    - name: Install cron job
+      cron:
+        name: update-linode
+        cron_file: update-linode
+        state: absent
diff --git a/ansible/roles/linode-dns-update/templates/linode-dns-update.j2 b/ansible/roles/linode-dns-update/templates/linode-dns-update.j2
new file mode 100644
index 0000000..97ab7c9
--- /dev/null
+++ b/ansible/roles/linode-dns-update/templates/linode-dns-update.j2
@@ -0,0 +1,45 @@
+#!/bin/bash
+
+set -e
+
+# Hostname: {{ ansible_hostname }}
+URL="https://api.linode.com/"
+USERNAME="{{ linode_dns__api_username }}"
+KEY="{{ linode_dns__api_key }}"
+DOMAIN_ID="{{ linode_dns__domain_id }}"
+
+PATH=/sbin:/usr/sbin:/bin:/usr/bin:
+
+req() {
+  PARAMS=()
+  for p in "$@"
+  do
+    PARAMS+=(-F "$p")
+  done
+
+  curl \
+    -4 \
+    --user "$USERNAME:$KEY" -s \
+    "${PARAMS[@]}" \
+    "$URL" >/dev/null # | jq
+}
+
+domain_resource_update() {
+  req api_action=domain.resource.update DomainId="$1" ResourceId="$2" Type="$3" Target="$4"
+}
+
+{% if linode_dns__ipv4_resource is defined %}
+domain_resource_update "$DOMAIN_ID" "{{ linode_dns__ipv4_resource }}" "A" "[remote_addr]"
+{% endif %}
+
+{% if linode_dns__ipv6_resource is defined %}
+q=''
+#q='map(select(.ifname=="wlx00e01d0808b2"))'
+q='map(.addr_info) | flatten | map(select(.scope=="global" and .deprecated != true and .mngtmpaddr != true) | .local) | first'
+ip=$(ip -6 -json addr | jq -r -c "$q")
+
+if [[ ! -z $ip ]]
+then
+  domain_resource_update "$DOMAIN_ID" "{{ linode_dns__ipv6_resource }}" "AAAA" "$ip"
+fi
+{% endif %}