Merge pull request #1208 from mattymo/1.6-flannel

Update to k8s 1.6 with flannel and centos fixes

roles/kubernetes/node/defaults/main.yml

@@ -10,6 +10,14 @@ kube_proxy_mode: iptables
 # policy engine.
 kube_proxy_masquerade_all: false
 
+# These options reflect limitations of running kubelet in a container.
+# Modify at your own risk
+kubelet_enable_cri: false
+kubelet_cgroups_per_qos: false
+# Set to empty to avoid cgroup creation
+kubelet_enforce_node_allocatable: ""
+
+
 # Limits for kube components and nginx load balancer app
 kubelet_memory_limit: 512M
 kubelet_cpu_limit: 100m

roles/kubernetes/node/templates/kubelet.j2

@@ -12,7 +12,9 @@ KUBELET_HOSTNAME="--hostname-override={{ ansible_hostname }}"
 {% set kubelet_args_base %}--pod-manifest-path={{ kube_manifest_dir }} \
 --pod-infra-container-image={{ pod_infra_image_repo }}:{{ pod_infra_image_tag }} \
 --kube-reserved cpu={{ kubelet_cpu_limit }},memory={{ kubelet_memory_limit|regex_replace('Mi', 'M') }} \
---node-status-update-frequency={{ kubelet_status_update_frequency }}{% endset %}
+--node-status-update-frequency={{ kubelet_status_update_frequency }} \
+--enable-cri={{ kubelet_enable_cri }} --cgroups-per-qos={{ kubelet_cgroups_per_qos }} \
+ --enforce-node-allocatable='{{ kubelet_enforce_node_allocatable }}'{% endset %}
 
 {# DNS settings for kubelet #}
 {% if dns_mode == 'kubedns' %}