Use the default minikube driver (docker)

To fix issues with the upstream way of doing it directly on the
host.
This also makes the logic much simpler.
Fixes at least the CoreDNS containers not starting issue.

Change-Id: I6ef651b1df972c7021d9f304a2479ae97e51696c

playbooks/helm/pre.yaml

@@ -1,3 +1,10 @@
 - hosts: all
   roles:
     - role: use-buildset-registry
+    - role: clear-firewall
+    - role: ensure-docker
+    - role: ensure-minikube
+    - role: ensure-helm
+  tasks:
+    - name: Start minikube
+      command: minikube start

playbooks/kubernetes/post.yaml

@@ -1,4 +1,5 @@
 - hosts: all
   roles:
+    - collect-container-logs  # for some of minikube logs
     - collect-kubernetes-state
     - collect-kubernetes-pods-logs

roles/ensure-minikube/defaults/main.yaml

@@ -0,0 +1 @@
+minikube_version: latest

roles/ensure-minikube/tasks/main.yaml

@@ -0,0 +1,20 @@
+- name: Download minikube
+  ansible.builtin.get_url:
+    url: https://storage.googleapis.com/minikube/releases/{{ minikube_version }}/minikube-linux-amd64
+    dest: /tmp/minikube
+    mode: 0755
+
+- name: Install minikube
+  become: true
+  ansible.builtin.copy:
+    remote_src: true
+    src: /tmp/minikube
+    dest: /usr/local/bin/minikube
+    mode: "0755"
+
+- name: Install kubectl from minikube
+  become: true
+  ansible.builtin.file:
+    src: /usr/local/bin/minikube
+    dest: /usr/local/bin/kubectl
+    state: link

zuul.d/jobs.yaml

@@ -14,10 +14,6 @@
 - job:
     name: nebulous-apply-helm-charts
     parent: opendev-buildset-registry-consumer
-
-- job:
-    name: nebulous-apply-helm-charts
-    parent: apply-helm-charts
     description: Deploy a Kubernetes cluster and apply charts.
     roles:
       - zuul: zuul/zuul-jobs

zuul.d/project.yaml

@@ -30,8 +30,10 @@
             files: &nebulous-component-template-apply-helm-charts-files
               - ^playbooks/helm/
               - ^playbooks/kubernetes/
+              - ^roles/check-pod-restarts/
               - ^roles/collect-kubernetes-pods-logs/
               - ^roles/collect-kubernetes-state/
+              - ^roles/ensure-minikube/
         - opendev-buildset-registry:
             files: *nebulous-component-template-apply-helm-charts-files