Extract kubectl commands to resource yaml files and use kube module

roles/kargo-defaults/defaults/main.yaml

@@ -120,3 +120,14 @@ enable_network_policy: false
 ## at the moment.
 authorization_mode: ['AlwaysAllow']
 rbac_enabled: "{{ 'RBAC' in authorization_mode }}"
+
+ssl_ca_dirs: "[
+      {% if ansible_os_family in ['CoreOS', 'Container Linux by CoreOS'] -%}
+      '/usr/share/ca-certificates',
+      {% elif ansible_os_family == 'RedHat' -%}
+      '/etc/pki/tls',
+      '/etc/pki/ca-trust',
+      {% elif ansible_os_family == 'Debian' -%}
+      '/usr/share/ca-certificates',
+      {% endif -%}
+    ]"

roles/kubernetes-apps/helm/tasks/main.yml

@@ -10,19 +10,31 @@
     mode: 0755
   register: helm_container
 
-- name: Helm | Configure tiller service account for RBAC
+- name: Helm | Lay Down Helm Manifests (RBAC)
-  command: kubectl create serviceaccount tiller --namespace={{ system_namespace }}
+  template:
-  ignore_errors: yes
+    src: "manifests/{{item.file}}"
-  when: rbac_enabled
+    dest: "{{kube_config_dir}}/{{item.file}}"
+  with_items:
+    - {name: tiller, file: tiller-sa.yml, type: sa}
+    - {name: tiller, file: tiller-clusterrolebinding.yml, type: clusterrolebinding}
+  register: manifests
+  when: dns_mode != 'none' and inventory_hostname == groups['kube-master'][0] and rbac_enabled
 
-- name: Helm | Configure tiller rolebindings for RBAC
+- name: Helm | Apply Helm Manifests (RBAC)
-  command: kubectl create clusterrolebinding tiller --clusterrole=cluster-admin --serviceaccount={{ system_namespace }}:tiller
+  kube:
-  ignore_errors: yes
+    name: "{{item.item.name}}"
-  when: rbac_enabled
+    namespace: "{{ system_namespace }}"
+    kubectl: "{{bin_dir}}/kubectl"
+    resource: "{{item.item.type}}"
+    filename: "{{kube_config_dir}}/{{item.item.file}}"
+    state: "{{item.changed | ternary('latest','present') }}"
+  with_items: "{{ manifests.results }}"
+  failed_when: manifests|failed and "Error from server (AlreadyExists)" not in manifests.msg
+  when: dns_mode != 'none' and inventory_hostname == groups['kube-master'][0] and rbac_enabled
 
 - name: Helm | Install/upgrade helm
   command: "{{ bin_dir }}/helm init --upgrade --tiller-image={{ tiller_image_repo }}:{{ tiller_image_tag }}"
-  when: helm_container.changed
+  when: helm_container.changed or manifests|changed
 
 - name: Helm | Patch tiller deployment for RBAC
   command: kubectl patch deployment tiller-deploy -p '{"spec":{"template":{"spec":{"serviceAccount":"tiller"}}}}' -n {{ system_namespace }}

roles/kubernetes-apps/helm/templates/manifests/tiller-clusterrolebinding.yml

@@ -0,0 +1,13 @@
+kind: ClusterRoleBinding
+apiVersion: rbac.authorization.k8s.io/v1beta1
+metadata:
+  name: tiller
+  namespace: {{ system_namespace }}
+subjects:
+  - kind: ServiceAccount
+    name: tiller
+    namespace: {{ system_namespace }}
+roleRef:
+  kind: ClusterRole
+  name: cluster-admin
+  apiGroup: rbac.authorization.k8s.io

roles/kubernetes-apps/helm/templates/manifests/tiller-sa.yml

@@ -0,0 +1,7 @@
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: tiller
+  namespace: {{ system_namespace }}
+  labels:
+    kubernetes.io/cluster-service: "true"

roles/kubernetes/node/tasks/install.yml

@@ -1,22 +1,8 @@
 ---
-- name: install | Set SSL CA directories
-  set_fact:
-    ssl_ca_dirs: "[
-      {% if ansible_os_family in ['CoreOS', 'Container Linux by CoreOS'] -%}
-      '/usr/share/ca-certificates',
-      {% elif ansible_os_family == 'RedHat' -%}
-      '/etc/pki/tls',
-      '/etc/pki/ca-trust',
-      {% elif ansible_os_family == 'Debian' -%}
-      '/usr/share/ca-certificates',
-      {% endif -%}
-    ]"
-  tags: facts
-
 - include: "install_{{ kubelet_deployment_type }}.yml"
 
 - name: install | Write kubelet systemd init file
-  template: 
+  template:
     src: "kubelet.{{ kubelet_deployment_type }}.service.j2"
     dest: "/etc/systemd/system/kubelet.service"
     backup: "yes"