Add Postgres Cloud SQL support

api/types/databaseserver.go

@@ -64,12 +64,16 @@ type DatabaseServer interface {
 	GetURI() string
 	// GetCA returns the database CA certificate bytes.
 	GetCA() []byte
-	// GetRegion returns the AWS region for RDS/Aurora databases.
-	GetRegion() string
+	// GetAWS returns AWS information for RDS/Aurora databases.
+	GetAWS() AWS
+	// GetGCP returns GCP information for Cloud SQL databases.
+	GetGCP() GCPCloudSQL
 	// GetType returns the database type, self-hosted or AWS RDS.
 	GetType() string
 	// IsRDS returns true if this is an RDS/Aurora database.
 	IsRDS() bool
+	// IsCloudSQL returns true if this is a Cloud SQL database.
+	IsCloudSQL() bool
 	// CheckAndSetDefaults checks and set default values for any missing fields.
 	CheckAndSetDefaults() error
 	// Copy returns a copy of this database server object.
@@ -235,21 +239,34 @@ func (s *DatabaseServerV3) GetCA() []byte {
 	return s.Spec.CACert
 }
 
-// GetRegion returns the AWS region for RDS/Aurora databases.
-func (s *DatabaseServerV3) GetRegion() string {
-	return s.Spec.AWS.Region
+// GetAWS returns AWS information for RDS/Aurora databases.
+func (s *DatabaseServerV3) GetAWS() AWS {
+	return s.Spec.AWS
+}
+
+// GetGCP returns GCP information for Cloud SQL databases.
+func (s *DatabaseServerV3) GetGCP() GCPCloudSQL {
+	return s.Spec.GCP
 }
 
 // IsRDS returns true if this database represents AWS RDS/Aurora instance.
 func (s *DatabaseServerV3) IsRDS() bool {
 	return s.GetType() == DatabaseTypeRDS
 }
 
+// IsCloudSQL returns true if this database is a Cloud SQL instance.
+func (s *DatabaseServerV3) IsCloudSQL() bool {
+	return s.GetType() == DatabaseTypeCloudSQL
+}
+
 // GetType returns the database type, self-hosted or AWS RDS.
 func (s *DatabaseServerV3) GetType() string {
 	if s.Spec.AWS.Region != "" {
 		return DatabaseTypeRDS
 	}
+	if s.Spec.GCP.ProjectID != "" {
+		return DatabaseTypeCloudSQL
+	}
 	return DatabaseTypeSelfHosted
 }
 
@@ -297,6 +314,8 @@ const (
 	DatabaseTypeSelfHosted = "self-hosted"
 	// DatabaseTypeRDS is AWS-hosted RDS or Aurora database.
 	DatabaseTypeRDS = "rds"
+	// DatabaseTypeCloudSQL is GCP-hosted Cloud SQL database.
+	DatabaseTypeCloudSQL = "gcp"
 )
 
 // SortedDatabaseServers implements sorter for database servers.
@@ -310,3 +329,26 @@ func (s SortedDatabaseServers) Less(i, j int) bool { return s[i].GetName() < s[j
 
 // Swap swaps two database servers.
 func (s SortedDatabaseServers) Swap(i, j int) { s[i], s[j] = s[j], s[i] }
+
+// DatabaseServers is a list of database servers.
+type DatabaseServers []DatabaseServer
+
+// HasRDS returns true if an AWS RDS database is present among this list.
+func (s DatabaseServers) HasRDS() bool {
+	for _, d := range s {
+		if d.IsRDS() {
+			return true
+		}
+	}
+	return false
+}
+
+// HasGCP returns true if a GCP Cloud SQL database is present among this list.
+func (s DatabaseServers) HasGCP() bool {
+	for _, d := range s {
+		if d.IsCloudSQL() {
+			return true
+		}
+	}
+	return false
+}