Make daemonsets upgradeable (#1606)

Canal will be covered by a separate PR

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

@@ -25,18 +25,6 @@
     state: absent
   when: inventory_hostname == groups['kube-master'][0]
 
-# FIXME: remove if kubernetes/features#124 is implemented
-- name: Kubernetes Apps | Purge old Netchecker daemonsets
-  kube:
-    name: "{{item.item.name}}"
-    namespace: "{{netcheck_namespace}}"
-    kubectl: "{{bin_dir}}/kubectl"
-    resource: "{{item.item.type}}"
-    filename: "{{kube_config_dir}}/{{item.item.file}}"
-    state: absent
-  with_items: "{{ manifests.results }}"
-  when: inventory_hostname == groups['kube-master'][0] and item.item.type == "ds" and item.changed
-
 - name: Kubernetes Apps | Start Netchecker Resources
   kube:
     name: "{{item.item.name}}"

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

@@ -40,3 +40,8 @@ spec:
             requests:
               cpu: {{ netchecker_agent_cpu_requests }}
               memory: {{ netchecker_agent_memory_requests }}
+  updateStrategy:
+    rollingUpdate:
+      maxUnavailable: 1
+    type: RollingUpdate
+    

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

@@ -44,3 +44,7 @@ spec:
             requests:
               cpu: {{ netchecker_agent_cpu_requests }}
               memory: {{ netchecker_agent_memory_requests }}
+  updateStrategy:
+    rollingUpdate:
+      maxUnavailable: 1
+    type: RollingUpdate

roles/kubernetes-apps/efk/fluentd/templates/fluentd-ds.yml.j2

@@ -58,4 +58,3 @@ spec:
 {% if rbac_enabled %}
       serviceAccountName: efk 
 {% endif %}
-

roles/network_plugin/weave/templates/weave-net.yml.j2

@@ -154,3 +154,8 @@ items:
             - name: lib-modules
               hostPath:
                 path: /lib/modules
+      updateStrategy:
+        rollingUpdate:
+          maxUnavailable: 1
+        type: RollingUpdate
+