Adding EFK logging stack

roles/kubernetes-apps/efk/kibana/defaults/main.yml

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+---
+kibana_cpu_limit: 100m 
+kibana_mem_limit: 0M
+kibana_cpu_requests: 100m
+kibana_mem_requests: 0M
+kibana_service_port: 5601
+kibaba_base_url: "/api/v1/proxy/namespaces/kube-system/services/kibana-logging"

roles/kubernetes-apps/efk/kibana/meta/main.yml

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+dependencies:
+  - role: download
+    file: "{{ downloads.kibana }}"

roles/kubernetes-apps/efk/kibana/tasks/main.yml

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+---
+- name: "Kibana | Write Kibana deployment"
+  template: 
+    src: kibana-deployment.yml.j2
+    dest: "{{ kube_config_dir }}/kibana-deployment.yaml"
+  register: kibana_deployment_manifest
+
+- name: "Kibana | Create Kibana deployment"
+  kube:
+    filename: "{{kube_config_dir}}/kibana-deployment.yaml"
+    kubectl: "{{bin_dir}}/kubectl"
+    name: "kibana-logging"
+    namespace: "{{system_namespace}}"
+    resource: "rc"
+    state: "{{ item | ternary('latest','present') }}"
+  with_items: "{{ kibana_deployment_manifest.changed }}"
+  run_once: true
+
+- name: "Kibana | Write Kibana service "
+  template: 
+    src: kibana-service.yml.j2
+    dest: "{{ kube_config_dir }}/kibana-service.yaml"
+  register: kibana_service_manifest
+
+- name: "Kibana | Create Kibana service"
+  kube:
+    filename: "{{kube_config_dir}}/kibana-service.yaml"
+    kubectl: "{{bin_dir}}/kubectl"
+    name: "kibana-logging"
+    namespace: "{{system_namespace}}"
+    resource: "svc"
+    state: "{{ item | ternary('latest','present') }}"
+  with_items: "{{ kibana_service_manifest.changed }}"
+  run_once: true

roles/kubernetes-apps/efk/kibana/templates/kibana-deployment.yml.j2

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+---
+# https://raw.githubusercontent.com/kubernetes/kubernetes/v1.5.2/cluster/addons/fluentd-kibana/kibana-controller.yaml
+apiVersion: extensions/v1beta1
+kind: Deployment
+metadata:
+  name: kibana-logging
+  namespace: "{{ system_namespace  }}"
+  labels:
+    k8s-app: kibana-logging
+    kubernetes.io/cluster-service: "true"
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      k8s-app: kibana-logging
+  template:
+    metadata:
+      labels:
+        k8s-app: kibana-logging
+    spec:
+      containers:
+      - name: kibana-logging
+        image: "{{ kibana_image_repo }}:{{ kibana_image_tag }}"
+        resources:
+          # keep request = limit to keep this container in guaranteed class
+          limits:
+            cpu: {{ kibana_cpu_limit }}
+{% if kibana_mem_limit is defined and kibana_mem_limit != "0M" %}
+            mem: {{ kibana_mem_limit }}
+{% endif %}
+          requests:
+            cpu: {{ kibana_cpu_requests }}
+{% if kibana_mem_requests is defined and kibana_mem_requests != "0M" %}
+            mem: {{ kibana_mem_requests }}
+{% endif %}
+        env:
+          - name: "ELASTICSEARCH_URL"
+            value: "http://elasticsearch-logging:{{ elasticsearch_service_port }}"
+{% if kibana_base_url is defined and kibana_base_url != "" %}
+          - name: "KIBANA_BASE_URL"
+            value: "{{ kibana_base_url }}"
+{% endif %}
+        ports:
+        - containerPort: 5601
+          name: ui
+          protocol: TCP

roles/kubernetes-apps/efk/kibana/templates/kibana-service.yml.j2

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+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: kibana-logging
+  namespace: "{{ system_namespace }}"
+  labels:
+    k8s-app: kibana-logging
+    kubernetes.io/cluster-service: "true"
+    kubernetes.io/name: "Kibana"
+spec:
+  ports:
+  - port: {{ kibana_service_port }}
+    protocol: TCP
+    targetPort: ui
+  selector:
+    k8s-app: kibana-logging
+