Add custom type for resource not found error

cloud/scope/powervs_cluster.go

@@ -1827,7 +1827,7 @@ func (s *PowerVSClusterScope) DeleteLoadBalancer() (bool, error) {
 		})
 
 		if err != nil {
-			if strings.Contains(err.Error(), "cannot be found") {
+			if strings.Contains(err.Error(), string(VPCLoadBalancerNotFound)) {
 				s.Info("VPC load balancer successfully deleted")
 				return false, nil
 			}
@@ -1862,7 +1862,7 @@ func (s *PowerVSClusterScope) DeleteVPCSubnet() (bool, error) {
 		})
 
 		if err != nil {
-			if strings.Contains(err.Error(), "Subnet not found") {
+			if strings.Contains(err.Error(), string(VPCSubnetNotFound)) {
 				s.Info("VPC subnet successfully deleted")
 				return false, nil
 			}
@@ -1898,7 +1898,7 @@ func (s *PowerVSClusterScope) DeleteVPC() (bool, error) {
 	})
 
 	if err != nil {
-		if strings.Contains(err.Error(), "VPC not found") {
+		if strings.Contains(err.Error(), string(VPCNotFound)) {
 			s.Info("VPC successfully deleted")
 			return false, nil
 		}
@@ -1932,7 +1932,7 @@ func (s *PowerVSClusterScope) DeleteTransitGateway() (bool, error) {
 	})
 
 	if err != nil {
-		if strings.Contains(err.Error(), "gateway was not found") {
+		if strings.Contains(err.Error(), string(TransitGatewayNotFound)) {
 			s.Info("Transit gateway successfully deleted")
 			return false, nil
 		}
@@ -1998,7 +1998,7 @@ func (s *PowerVSClusterScope) DeleteDHCPServer() error {
 
 	server, err := s.IBMPowerVSClient.GetDHCPServer(*s.IBMPowerVSCluster.Status.DHCPServer.ID)
 	if err != nil {
-		if strings.Contains(err.Error(), "dhcp server does not exist") {
+		if strings.Contains(err.Error(), string(DHCPServerNotFound)) {
 			s.Info("DHCP server successfully deleted")
 			return nil
 		}
@@ -2067,7 +2067,7 @@ func (s *PowerVSClusterScope) DeleteCOSInstance() error {
 		ID: s.IBMPowerVSCluster.Status.COSInstance.ID,
 	})
 	if err != nil {
-		if strings.Contains(err.Error(), "COS instance unavailable") {
+		if strings.Contains(err.Error(), string(COSInstanceNotFound)) {
 			return nil
 		}
 		return fmt.Errorf("error fetching COS service instance: %w", err)

cloud/scope/types.go

@@ -0,0 +1,24 @@
+package scope
+
+// ResourceNotFound is the string representing an error when a resource is not found in IBM Cloud.
+type ResourceNotFound string
+
+var (
+	// VPCLoadBalancerNotFound is the error returned when a VPC load balancer is not found.
+	VPCLoadBalancerNotFound = ResourceNotFound("cannot be found")
+
+	// VPCSubnetNotFound is the error returned when a VPC subnet is not found.
+	VPCSubnetNotFound = ResourceNotFound("Subnet not found")
+
+	// VPCNotFound is the error returned when a VPC is not found.
+	VPCNotFound = ResourceNotFound("VPC not found")
+
+	// TransitGatewayNotFound is the error returned when a transit gateway is not found.
+	TransitGatewayNotFound = ResourceNotFound("gateway was not found")
+
+	// DHCPServerNotFound is the error returned when a DHCP server is not found.
+	DHCPServerNotFound = ResourceNotFound("dhcp server does not exist")
+
+	// COSInstanceNotFound is the error returned when a COS service instance is not found.
+	COSInstanceNotFound = ResourceNotFound("COS instance unavailable")
+)