kea: configure control agent necessary for HA

roles/kea/handlers/main.yml

@@ -2,3 +2,6 @@
 
 - name: Restart kea-dhcp4-server
   service: name=kea-dhcp4-server state=restarted
+
+- name: Restart kea-ctrl-agent
+  service: name=kea-ctrl-agent state=restarted

roles/kea/tasks/main.yml

@@ -3,10 +3,11 @@
 - name: Install the kea dhcp server
   apt:
     name:
+    - kea-ctrl-agent
     - kea-dhcp4-server
     - kea-dhcp-ddns-server
 
-- name: Configure the kea dhcp server
+- name: Configure the kea dhcp4 server
   template:
     src: kea/kea-dhcp4.conf.j2
     dest: /etc/kea/kea-dhcp4.conf
@@ -15,3 +16,13 @@
 
 - name: Start the kea dhcp server
   service: name=kea-dhcp4-server state=started enabled=yes
+
+- name: Configure the kea control agent
+  template:
+    src: kea/kea-ctrl-agent.conf.j2
+    dest: /etc/kea/kea-ctrl-agent.conf
+#   validate: kea-ctrl-agent -t %s
+  notify: Restart kea-ctrl-agent
+
+- name: Start the kea control agent
+  service: name=kea-ctrl-agent state=started enabled=yes

roles/kea/templates/kea/kea-ctrl-agent.conf.j2

@@ -0,0 +1,37 @@
+{
+    "Control-agent":
+    {
+        "http-host": "0.0.0.0",
+        "http-port": 8000,
+        "control-sockets":
+        {
+            "dhcp4":
+            {
+                "comment": "socket to DHCP4 server",
+                "socket-type": "unix",
+                "socket-name": "/tmp/kea4-ctrl-socket"
+            },
+
+            "d2":
+            {
+                "socket-type": "unix",
+                "socket-name": "/tmp/kea-ddns-ctrl-socket",
+                "user-context": { "in-use": false }
+            }
+        },
+
+        "loggers": [
+            {
+                "name": "kea-ctrl-agent",
+                "output_options": [
+                    {
+                        "output": "stdout",
+                        "pattern": "%-5p %m\n"
+                    }
+                ],
+                "severity": "INFO",
+                "debuglevel": 0
+            }
+        ]
+    }
+}