fix: use scaler resolved dns for docker daemon

defaults/main.yml

@@ -50,7 +50,7 @@ droneci_autoscaler_agent_architecture: amd64
 droneci_autoscaler_agent_distro: ubuntu
 droneci_autoscaler_agent_volumes: []
 droneci_autoscaler_agent_package_upgrade: False
-droneci_autoscaler_agent_resolved_dns: []
+droneci_autoscaler_agent_dns: []
 droneci_autoscaler_agent_runcmd: []
 
 # @var droneci_autoscaler_agent_packages:description: >

templates/services/userdata.yml.j2

@@ -48,7 +48,8 @@ write_files:
         "tlsverify": true,
         "tlscacert": "/etc/docker/ca.pem",
         "tlscert": "/etc/docker/server-cert.pem",
-        "tlskey": "/etc/docker/server-key.pem"
+        "tlskey": "/etc/docker/server-key.pem",
+        "dns": {{ droneci_autoscaler_agent_dns | to_json }}
       }
   {% if inst.docker_auth_config | default(droneci_autoscaler_docker_auth_config) is defined %}
 
@@ -74,12 +75,12 @@ write_files:
   - path: /etc/docker/server-key.pem
     encoding: b64
     content: {% raw %}{{ .TLSKey | base64 }}{% endraw %}
-  {% if droneci_autoscaler_agent_resolved_dns | length > 0 %}
+  {% if droneci_autoscaler_agent_dns | length > 0 %}
 
   - path: /etc/systemd/resolved.conf
     content: |
       [Resolve]
-      DNS={{ droneci_autoscaler_agent_resolved_dns | join(" ") }}
+      DNS={{ droneci_autoscaler_agent_dns | join(" ") }}
   {% endif %}
 {% if droneci_autoscaler_agent_runcmd | length > 0 %}