Adding yamllinter to ci steps (#1556)

* Adding yaml linter to ci check

* Minor linting fixes from yamllint

* Changing CI to install python pkgs from requirements.txt

- adding in a secondary requirements.txt for tests
- moving yamllint to tests requirements

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

@@ -1,5 +1,5 @@
 ---
-elasticsearch_cpu_limit: 1000m 
+elasticsearch_cpu_limit: 1000m
 elasticsearch_mem_limit: 0M
 elasticsearch_cpu_requests: 100m
 elasticsearch_mem_requests: 0M

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

@@ -1,3 +1,4 @@
+---
 dependencies:
   - role: download
     file: "{{ downloads.elasticsearch }}"

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

@@ -38,4 +38,3 @@
   command: "{{ bin_dir }}/kubectl apply -f {{ kube_config_dir }}/elasticsearch-service.yaml -n {{ system_namespace }}"
   run_once: true
   when: es_service_manifest.changed
-

roles/kubernetes-apps/efk/elasticsearch/templates/efk-clusterrolebinding.yml

@@ -1,3 +1,4 @@
+---
 kind: ClusterRoleBinding
 apiVersion: rbac.authorization.k8s.io/v1beta1
 metadata:

roles/kubernetes-apps/efk/elasticsearch/templates/efk-sa.yml

@@ -1,3 +1,4 @@
+---
 apiVersion: v1
 kind: ServiceAccount
 metadata: