Move to Ansible 3.4.0 (#7672)

* Ansible: move to Ansible 3.4.0 which uses ansible-base 2.10.10

* Docs: add a note about ansible upgrade post 2.9.x

* CI: ensure ansible is removed before ansible 3.x is installed to avoid pip failures

* Ansible: use newer ansible-lint

* Fix ansible-lint 5.0.11 found issues

* syntax issues
* risky-file-permissions
* var-naming
* role-name
* molecule tests

* Mitogen: use 0.3.0rc1 which adds support for ansible 2.10+

* Pin ansible-base to 2.10.11 to get package fix on RHEL8

contrib/network-storage/heketi/roles/tear-down/tasks/main.yml

@@ -1,51 +1,51 @@
 ---
-- name: "Remove storage class."  # noqa 301
+- name: Remove storage class.  # noqa 301
   command: "{{ bin_dir }}/kubectl delete storageclass gluster"
-  ignore_errors: true
-- name: "Tear down heketi."  # noqa 301
+  ignore_errors: true  # noqa ignore-errors
+- name: Tear down heketi.  # noqa 301
   command: "{{ bin_dir }}/kubectl delete all,service,jobs,deployment,secret --selector=\"glusterfs=heketi-pod\""
-  ignore_errors: true
-- name: "Tear down heketi."  # noqa 301
+  ignore_errors: true  # noqa ignore-errors
+- name: Tear down heketi.  # noqa 301
   command: "{{ bin_dir }}/kubectl delete all,service,jobs,deployment,secret --selector=\"glusterfs=heketi-deployment\""
-  ignore_errors: true
-- name: "Tear down bootstrap."
+  ignore_errors: true  # noqa ignore-errors
+- name: Tear down bootstrap.
   include_tasks: "../../provision/tasks/bootstrap/tear-down.yml"
-- name: "Ensure there is nothing left over."  # noqa 301
+- name: Ensure there is nothing left over.  # noqa 301
   command: "{{ bin_dir }}/kubectl get all,service,jobs,deployment,secret --selector=\"glusterfs=heketi-pod\" -o=json"
   register: "heketi_result"
   until: "heketi_result.stdout|from_json|json_query('items[*]')|length == 0"
   retries: 60
   delay: 5
-- name: "Ensure there is nothing left over."  # noqa 301
+- name: Ensure there is nothing left over.  # noqa 301
   command: "{{ bin_dir }}/kubectl get all,service,jobs,deployment,secret --selector=\"glusterfs=heketi-deployment\" -o=json"
   register: "heketi_result"
   until: "heketi_result.stdout|from_json|json_query('items[*]')|length == 0"
   retries: 60
   delay: 5
-- name: "Tear down glusterfs."  # noqa 301
+- name: Tear down glusterfs.  # noqa 301
   command: "{{ bin_dir }}/kubectl delete daemonset.extensions/glusterfs"
-  ignore_errors: true
-- name: "Remove heketi storage service."  # noqa 301
+  ignore_errors: true  # noqa ignore-errors
+- name: Remove heketi storage service.  # noqa 301
   command: "{{ bin_dir }}/kubectl delete service heketi-storage-endpoints"
-  ignore_errors: true
-- name: "Remove heketi gluster role binding"  # noqa 301
+  ignore_errors: true  # noqa ignore-errors
+- name: Remove heketi gluster role binding  # noqa 301
   command: "{{ bin_dir }}/kubectl delete clusterrolebinding heketi-gluster-admin"
-  ignore_errors: true
-- name: "Remove heketi config secret"  # noqa 301
+  ignore_errors: true  # noqa ignore-errors
+- name: Remove heketi config secret  # noqa 301
   command: "{{ bin_dir }}/kubectl delete secret heketi-config-secret"
-  ignore_errors: true
-- name: "Remove heketi db backup"  # noqa 301
+  ignore_errors: true  # noqa ignore-errors
+- name: Remove heketi db backup  # noqa 301
   command: "{{ bin_dir }}/kubectl delete secret heketi-db-backup"
-  ignore_errors: true
-- name: "Remove heketi service account"  # noqa 301
+  ignore_errors: true  # noqa ignore-errors
+- name: Remove heketi service account  # noqa 301
   command: "{{ bin_dir }}/kubectl delete serviceaccount heketi-service-account"
-  ignore_errors: true
-- name: "Get secrets"
+  ignore_errors: true  # noqa ignore-errors
+- name: Get secrets
   command: "{{ bin_dir }}/kubectl get secrets --output=\"json\""
   register: "secrets"
   changed_when: false
-- name: "Remove heketi storage secret"
+- name: Remove heketi storage secret
   vars: { storage_query: "items[?metadata.annotations.\"kubernetes.io/service-account.name\"=='heketi-service-account'].metadata.name|[0]" }
   command: "{{ bin_dir }}/kubectl delete secret {{ secrets.stdout|from_json|json_query(storage_query) }}"
   when: "storage_query is defined"
-  ignore_errors: true
+  ignore_errors: true  # noqa ignore-errors