Scripts and readme (#258)

* Avoid race condition when deploying quickstart example

The namespace and CRD creation must happen before any dependent objects
are created.  So we can put these in a separate directory (manifest/setup)
so they can be created before the other objects.

Some minor updates to the README and added a couple of scripts
for the quickstarts

Update travis script to avoid race condition

Signed-off-by: Paul Gier <pgier@redhat.com>

* simplify the example quickstart script and improve readme

Signed-off-by: Paul Gier <pgier@redhat.com>

* increase minikube memory to 6g for quickstart example

manifests/setup/prometheus-operator-clusterRole.yaml

@@ -0,0 +1,73 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  labels:
+    app.kubernetes.io/component: controller
+    app.kubernetes.io/name: prometheus-operator
+    app.kubernetes.io/version: v0.33.0
+  name: prometheus-operator
+rules:
+- apiGroups:
+  - apiextensions.k8s.io
+  resources:
+  - customresourcedefinitions
+  verbs:
+  - '*'
+- apiGroups:
+  - monitoring.coreos.com
+  resources:
+  - alertmanagers
+  - prometheuses
+  - prometheuses/finalizers
+  - alertmanagers/finalizers
+  - servicemonitors
+  - podmonitors
+  - prometheusrules
+  verbs:
+  - '*'
+- apiGroups:
+  - apps
+  resources:
+  - statefulsets
+  verbs:
+  - '*'
+- apiGroups:
+  - ""
+  resources:
+  - configmaps
+  - secrets
+  verbs:
+  - '*'
+- apiGroups:
+  - ""
+  resources:
+  - pods
+  verbs:
+  - list
+  - delete
+- apiGroups:
+  - ""
+  resources:
+  - services
+  - services/finalizers
+  - endpoints
+  verbs:
+  - get
+  - create
+  - update
+  - delete
+- apiGroups:
+  - ""
+  resources:
+  - nodes
+  verbs:
+  - list
+  - watch
+- apiGroups:
+  - ""
+  resources:
+  - namespaces
+  verbs:
+  - get
+  - list
+  - watch