Refactoring resolv.conf

- Renaming templates for netchecker
- Add dnsPolicy: ClusterFirstWithHostNet to kube-proxy

Signed-off-by: Sergii Golovatiuk <sgolovatiuk@mirantis.com>

roles/kubernetes-apps/ansible/tasks/netchecker.yml

@@ -3,10 +3,10 @@
     src: "{{item.file}}"
     dest: "{{kube_config_dir}}/{{item.file}}"
   with_items:
-    - {file: netchecker-agent-ds.yml, type: ds, name: netchecker-agent}
+    - {file: netchecker-agent-ds.yml.j2, type: ds, name: netchecker-agent}
-    - {file: netchecker-agent-hostnet-ds.j2, type: ds, name: netchecker-agent-hostnet}
+    - {file: netchecker-agent-hostnet-ds.yml.j2, type: ds, name: netchecker-agent-hostnet}
-    - {file: netchecker-server-pod.yml, type: po, name: netchecker-server}
+    - {file: netchecker-server-pod.yml.j2, type: po, name: netchecker-server}
-    - {file: netchecker-server-svc.yml, type: svc, name: netchecker-service}
+    - {file: netchecker-server-svc.yml.j2, type: svc, name: netchecker-service}
   register: manifests
   when: inventory_hostname == groups['kube-master'][0]
 

roles/kubernetes-apps/ansible/templates/netchecker-agent-hostnet-ds.yml.j2

@@ -0,0 +1,39 @@
+apiVersion: extensions/v1beta1
+kind: DaemonSet
+metadata:
+  labels:
+    app: netchecker-agent-hostnet
+  name: netchecker-agent-hostnet
+  namespace: {{ netcheck_namespace }}
+spec:
+  template:
+    metadata:
+      name: netchecker-agent-hostnet
+      labels:
+        app: netchecker-agent-hostnet
+    spec:
+      hostNetwork: True
+{% if kube_version | version_compare('v1.6', '>=') %}
+      dnsPolicy: ClusterFirstWithHostNet
+{% endif %}
+      containers:
+        - name: netchecker-agent
+          image: "{{ agent_img }}"
+          env:
+            - name: MY_POD_NAME
+              valueFrom:
+                fieldRef:
+                  fieldPath: metadata.name
+          args:
+            - "-v=5"
+            - "-alsologtostderr=true"
+            - "-serverendpoint=netchecker-service:8081"
+            - "-reportinterval={{ agent_report_interval }}"
+          imagePullPolicy: {{ k8s_image_pull_policy }}
+          resources:
+            limits:
+              cpu: {{ netchecker_agent_cpu_limit }}
+              memory: {{ netchecker_agent_memory_limit }}
+            requests:
+              cpu: {{ netchecker_agent_cpu_requests }}
+              memory: {{ netchecker_agent_memory_requests }}

roles/kubernetes/master/templates/manifests/kube-controller-manager.manifest.j2

@@ -7,9 +7,9 @@ metadata:
     k8s-app: kube-controller
 spec:
   hostNetwork: true
-{%- if kube_version | version_compare('v1.6', '>=') -%}
+{% if kube_version | version_compare('v1.6', '>=') %}
   dnsPolicy: ClusterFirstWithHostNet
-{%- endif -%}
+{% endif %}
   containers:
   - name: kube-controller-manager
     image: {{ hyperkube_image_repo }}:{{ hyperkube_image_tag }}

roles/kubernetes/master/templates/manifests/kube-scheduler.manifest.j2

@@ -7,9 +7,9 @@ metadata:
     k8s-app: kube-scheduler
 spec:
   hostNetwork: true
-{%- if kube_version | version_compare('v1.6', '>=')  -%}
+{% if kube_version | version_compare('v1.6', '>=') %}
   dnsPolicy: ClusterFirstWithHostNet
-{%- endif -%}
+{% endif %}
   containers:
   - name: kube-scheduler
     image: {{ hyperkube_image_repo }}:{{ hyperkube_image_tag }}

roles/kubernetes/node/templates/manifests/kube-proxy.manifest.j2

@@ -7,6 +7,9 @@ metadata:
     k8s-app: kube-proxy
 spec:
   hostNetwork: true
+{% if kube_version | version_compare('v1.6', '>=') %}
+  dnsPolicy: ClusterFirstWithHostNet
+{% endif %}
   containers:
   - name: kube-proxy
     image: {{ hyperkube_image_repo }}:{{ hyperkube_image_tag }}