test molecule zuul job (#180)

molecule/default/molecule.yml

@@ -6,10 +6,6 @@ driver:
     login_cmd_template: 'docker exec -ti {instance} bash'
     ansible_connection_options:
       ansible_connection: docker
-lint: |
-  set -e
-  yamllint .
-  flake8
 platforms:
   - name: instance-kind
 provisioner:
@@ -33,7 +29,6 @@ scenario:
   name: default
   test_sequence:
     - dependency
-    - lint
     - syntax
     - prepare
     - converge

molecule/default/prepare.yml

@@ -11,22 +11,35 @@
       - "node.kubernetes.io/not-ready"
       - "node.kubernetes.io/unreachable"
       - "node.kubernetes.io/unschedulable"
+    kind_bin_path: "/usr/local/bin/kind"
 
   tasks:
     # We are spawning k8s cluster using kind executable and we ensure that the cluster is up
     # and node is ready, if this is not validated we may face issue later on when running tests
-    - name: Download kind
+    - name: Check if kind binary is available or not
+      stat:
+        path: "{{ kind_bin_path }}"
+      register: r
+
+    - name: Download kind if not available
       get_url:
         url: https://kind.sigs.k8s.io/dl/v0.11.1/kind-linux-amd64
-        dest: /tmp/kind
+        dest: "{{ kind_bin_path }}"
+      when: not r.stat.exists
 
-    - name: make kind executable
+    - name: Make kind executable
       file:
-        path: /tmp/kind
+        path: "{{ kind_bin_path }}"
         mode: '0755'
 
+    - name: Check if Kind cluster exists
+      command: "{{ kind_bin_path }} get clusters"
+      register: r
+      ignore_errors: true
+
     - name: Create cluster
-      command: "kind create cluster"
+      command: "{{ kind_bin_path }} create cluster"
+      when: r.stdout == ''
 
     - name: Assert that nodes are ready
       k8s_info: