Add an operator Helm chart

The submariner-operator Helm chart deploys Submariner using the
Submariner operator: it deploys the CRDs, roles, and SAs required to
run the operator and Submariner, then pushes a Submariner CR to
instruct the operator to deploy Submariner.

This patch also adds a Makefile to validate the deployments; run

	make deploy

to test the Helm charts (this will bring up two clusters, install the
broker on one of them and the operator on both, and end with a
connectivity test).

Fixes: #17
Signed-off-by: Stephen Kitt <skitt@redhat.com>

submariner-operator/questions.yml

@@ -0,0 +1,118 @@
+questions:
+- variable: defaultOperatorImage
+  default: true
+  description: "Use default Submariner operator image or specify a custom one"
+  label: Use default Submariner operator image
+  type: boolean
+  show_subquestion_if: false
+  group: "Container Images"
+  subquestions:
+  - variable: operator.image.repository
+    default: "quay.io/submariner/submariner-operator"
+    description: "Submariner Operator Image Repository"
+    type: string
+    label: Submariner Operator Image Repository
+  - variable: operator.image.tag
+    default: "0.7.0"
+    description: "Submariner Operator Image Tag"
+    type: string
+    label: Submariner Operator Image Tag
+- variable: defaultSubmarinerImages
+  default: true
+  description: "Use default Submariner images or specify custom ones"
+  label: Use default Submariner images
+  type: boolean
+  show_subquestion_if: false
+  group: "Container images"
+  subquestions:
+  - variable: submariner.images.repository
+    default: "quay.io/submariner"
+    description: "Submariner Repository (base for all non-operator images)"
+    type: string
+    label: Submariner Repository
+  - variable: submariner.images.tag
+    default: "0.7.0"
+    description: "Submariner Images Tag (shared for all non-operator images)"
+    type: string
+    label: Submariner Images Tag
+- variable: submariner.clusterId
+  default: ""
+  description: "Enter a unique cluster ID to identify this cluster"
+  type: string
+  label: "Cluster ID"
+  group: "Configuration"
+  required: true
+- variable: ipsec.psk
+  default: ""
+  description: "Enter the pre-shared key for the IPsec Cable Engine"
+  type: string
+  label: "IPsec Pre-Shared Key"
+  group: "Configuration"
+  required: true
+- variable: broker.server
+  type: string
+  default: ""
+  group: "Broker Configuration"
+  label: "Broker Server"
+  description: "Broker server to use (without the https://)"
+- variable: broker.insecure
+  type: boolean
+  default: false
+  show_subquestion_if: false
+  group: "Broker Configuration"
+  label: "Insecure Broker"
+  description: "Connect to K8s broker without validating CA"
+  subquestions:
+  - variable: broker.ca
+    type: string
+    description: "Base64 encoded broker ca.crt"
+    label: "Broker CA encoded in base64"
+    default: ""
+- variable: broker.token
+  type: string
+  group: "Broker Configuration"
+  label: "Broker Token"
+  description: "Bearer token for broker"
+- variable: broker.namespace
+  type: string
+  group: "Broker Configuration"
+  label: "Broker Namespace"
+  description: "Enter namespace to use on central broker"
+- variable: submariner.clusterCidr
+  default: ""
+  description: "Enter the cluster CIDR (i.e. 10.42.0.0/16) for this cluster"
+  type: string
+  label: "Cluster CIDR"
+  group: "CIDR Configuration"
+  required: true
+- variable: submariner.serviceCidr
+  default: ""
+  description: "Enter the service CIDR (i.e. 10.43.0.0/16) for this cluster"
+  type: string
+  label: "Service CIDR"
+  group: "CIDR Configuration"
+  required: true
+- variable: submariner.natEnabled
+  type: boolean
+  default: false
+  group: "Advanced Configuration"
+  description: "If the gateway nodes for this cluster are behind 1:1 NAT, you should enable NAT"
+  label: "NAT Enabled"
+- variable: submariner.debug
+  type: boolean
+  default: false
+  group: "Advanced Configuration"
+  description: "Enable submariner debug mode"
+  label: "Submariner Debug Enabled"
+- variable: ipsec.debug
+  type: boolean
+  default: false
+  group: "Advanced Configuration"
+  description: "Enable Charon debug mode"
+  label: "Charon Enabled"
+- variable: submariner.cableDriver
+  type: string
+  default: ""
+  group: "Advanced Configuration"
+  description: "Cable driver implementation"
+  label: "Cable Driver"