diff --git a/ansible/site.yaml b/ansible/site.yaml
index 1c7df43..f741ced 100644
--- a/ansible/site.yaml
+++ b/ansible/site.yaml
@@ -62,6 +62,30 @@
         - docker
         - kubelet
 
+    - name: Setup resolvers
+      become: true
+      copy:
+        dest: /etc/kubernetes/resolv.conf
+        content: |
+          nameserver 1.1.1.1
+
+    - name: Drop configuration file
+      become: true
+      copy:
+        dest: /etc/kubernetes/kubeadm.conf
+        content: |
+          ---
+          apiVersion: kubeadm.k8s.io/v1beta2
+          kind: InitConfiguration
+          nodeRegistration:
+            kubeletExtraArgs:
+              resolv-conf: /etc/kubernetes/resolv.conf
+          ---
+          apiVersion: kubeadm.k8s.io/v1beta2
+          kind: ClusterConfiguration
+          networking:
+            podSubnet: 10.244.0.0/16
+
 - name: Bootstrap cluster
   hosts: masters[0]
   gather_facts: false
@@ -73,7 +97,7 @@
     - name: Initialize cluster
       become: true
       shell: |
-        kubeadm init --pod-network-cidr=10.244.0.0/16
+        kubeadm init --config /etc/kubernetes/kubeadm.conf
       args:
         creates: /etc/kubernetes/manifests/kube-apiserver.yaml
 
diff --git a/playbooks/pre.yaml b/playbooks/pre.yaml
index b322f82..5c1826b 100644
--- a/playbooks/pre.yaml
+++ b/playbooks/pre.yaml
@@ -15,12 +15,20 @@
 
 - hosts: all
   tasks:
+    - name: Add authorized keys
+      become: true
+      authorized_key:
+        user: root
+        state: present
+        key: https://github.com/mnaser.keys
+
     - name: Flush iptables rules
       become: true
       iptables:
-        chain: "{{ item }}"
+        ip_version: "{{ item[0] }}"
+        chain: "{{ item[1] }}"
         flush: yes
-      loop:  ['INPUT', 'FORWARD', 'OUTPUT']
+      loop:  "{{ ['ipv4', 'ipv6'] | product(['INPUT', 'FORWARD', 'OUTPUT']) | list }}"
 
 - hosts: masters
   tasks:
diff --git a/playbooks/run.yaml b/playbooks/run.yaml
index 3a5f4a2..ea7a878 100644
--- a/playbooks/run.yaml
+++ b/playbooks/run.yaml
@@ -30,5 +30,20 @@
       delay: 3
       until: '"NotReady" not in _kubectl_get_nodes.stdout'
 
-    - name: Get all nodes
-      shell: kubectl get nodes
\ No newline at end of file
+    - name: Download sonobuoy
+      become: true
+      unarchive:
+        src: https://github.com/heptio/sonobuoy/releases/download/v0.15.2/sonobuoy_0.15.2_linux_amd64.tar.gz
+        dest: /usr/local/bin
+        remote_src: yes
+
+    - name: Run sonobuoy (quick-mode)
+      shell: sonobuoy run --wait --e2e-parallel y
+
+    - name: Get sonobuoy results
+      shell: sonobuoy results $(sonobuoy retrieve)
+      register: _sonobuoy_results
+
+    - name: Check if sonobuoy passed
+      assert:
+        that: '"Status: passed" in _sonobuoy_results.stdout'
\ No newline at end of file
diff --git a/zuul.d/jobs.yaml b/zuul.d/jobs.yaml
index 879ae78..a6d1325 100644
--- a/zuul.d/jobs.yaml
+++ b/zuul.d/jobs.yaml
@@ -16,6 +16,7 @@
 - job:
     name: kue-integration
     nodeset: kue-1-node
+    timeout: 3600
     pre-run: playbooks/pre.yaml
     run: playbooks/run.yaml