Add availability zone secret and struct (#352)

* add availability zone secret and struct

samples/secret.yaml

@@ -33,10 +33,39 @@
   # Default value: ""
   # This is an optional field from v2.10.0 onwards for PowerFlex storage system >=4.0.x
   nasName: "nas-server"
-# # To add more PowerFlex systems, uncomment the following lines and provide the required values
+
+  # # zone: A cluster availability zone to which the PowerFlex system should be bound.
+  # # The mapping is one-to-one - the PowerFlex system cannot belong to more than one zone.
+  # # Ideally, the PowerFlex system and cluster nodes that define the availability zone would be
+  # # geographically co-located.
+  # #  Optional: true
+  # #  Default value: none
+  # zone:
+  #   # name: The name of the container orchestrator's availability zone to which the PowerFlex system
+  #   # should be mapped.
+  #   name: "zoneA"
+  #   # protectionDomains: A list of the protection domains and their associated pools, defined in
+  #   # the PowerFlex system.
+  #   # Currently, csi-powerflex only supports one protection domain per zone.
+  #   protectionDomains:
+  #     # pools: A list of pools that belong to a single protection defined in the PowerFlex system.
+  #     # Currently, csi-powerflex only supports one pool per protection domain.
+  #     - pools:
+  #         - "pool1"
+  #       # name: The name of the protection domain in the PowerFlex system.
+  #       #  Optional: true
+  #       #  name is required if storage pool names are not unique across protection domains.
+  #       name: "domain1"
+# To add more PowerFlex systems, uncomment the following lines and provide the required values
 # - username: "admin"
 #   password: "password"
 #   systemID: "2b11bb111111bb1b"
 #   endpoint: "https://127.0.0.2"
 #   skipCertificateValidation: true
 #   mdm: "10.0.0.3,10.0.0.4"
+#   zone:
+#     name: "ZoneB"
+#     protectionDomains:
+#       - name: "my-app-domain"
+#         pools:
+#           - "my-backend-pool"

service/service.go

@@ -107,22 +107,37 @@ var Log = logrus.New()
 
 // ArrayConnectionData contains data required to connect to array
 type ArrayConnectionData struct {
-	SystemID                  string   `json:"systemID"`
-	Username                  string   `json:"username"`
-	Password                  string   `json:"password"`
-	Endpoint                  string   `json:"endpoint"`
-	SkipCertificateValidation bool     `json:"skipCertificateValidation,omitempty"`
-	Insecure                  bool     `json:"insecure,omitempty"`
-	IsDefault                 bool     `json:"isDefault,omitempty"`
-	AllSystemNames            string   `json:"allSystemNames"`
-	NasName                   string   `json:"nasName"`
-	Mdm                       string   `json:"mdm,omitempty"`
-	Zone                      ZoneInfo `json:"zone,omitempty"`
-}
-
-type ZoneInfo struct {
-	Name     string `json:"name"`
-	LabelKey string `json:"labelKey"`
+	SystemID                  string            `json:"systemID"`
+	Username                  string            `json:"username"`
+	Password                  string            `json:"password"`
+	Endpoint                  string            `json:"endpoint"`
+	SkipCertificateValidation bool              `json:"skipCertificateValidation,omitempty"`
+	Insecure                  bool              `json:"insecure,omitempty"`
+	IsDefault                 bool              `json:"isDefault,omitempty"`
+	AllSystemNames            string            `json:"allSystemNames"`
+	NasName                   string            `json:"nasName"`
+	Mdm                       string            `json:"mdm,omitempty"`
+	AvailabilityZone          *AvailabilityZone `json:"zone,omitempty"`
+}
+
+// Definitions to make AvailabilityZone decomposition easier to read.
+type (
+	ZoneName             string
+	ZoneTargetMap        map[ZoneName][]ProtectionDomain
+	ProtectionDomainName string
+	PoolName             string
+)
+
+// AvailabilityZone provides a mapping between cluster zones labels and storage systems
+type AvailabilityZone struct {
+	Name              ZoneName           `json:"name"`
+	ProtectionDomains []ProtectionDomain `json:"protectionDomains"`
+}
+
+// ProtectionDomain provides protection domain information for a cluster's availability zone
+type ProtectionDomain struct {
+	Name  ProtectionDomainName `json:"name"`
+	Pools []PoolName           `json:"pools"`
 }
 
 // Manifest is the SP's manifest.