kops toolbox dump: Add Subnets to dump

pkg/resources/aws/BUILD.bazel

@@ -10,6 +10,7 @@ go_library(
         "natgateway.go",
         "routetable.go",
         "securitygroup.go",
+        "subnet.go",
         "tags.go",
         "vpc.go",
     ],

pkg/resources/aws/aws.go

@@ -656,6 +656,7 @@ func ListSubnets(cloud fi.Cloud, clusterName string) ([]*resources.Resource, err
 			ID:      subnetID,
 			Type:    "subnet",
 			Deleter: DeleteSubnet,
+			Dumper:  DumpSubnet,
 			Shared:  shared,
 		}
 		resourceTracker.Blocks = append(resourceTracker.Blocks, "vpc:"+aws.StringValue(subnet.VpcId))

pkg/resources/aws/subnet.go

@@ -0,0 +1,41 @@
+/*
+Copyright 2018 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package aws
+
+import (
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/service/ec2"
+
+	"k8s.io/kops/pkg/resources"
+)
+
+func DumpSubnet(op *resources.DumpOperation, r *resources.Resource) error {
+	data := make(map[string]interface{})
+	data["id"] = r.ID
+	data["type"] = r.Type
+	data["raw"] = r.Obj
+	op.Dump.Resources = append(op.Dump.Resources, data)
+
+	ec2Subnet := r.Obj.(*ec2.Subnet)
+	s := &resources.Subnet{
+		ID:   aws.StringValue(ec2Subnet.SubnetId),
+		Zone: aws.StringValue(ec2Subnet.AvailabilityZone),
+	}
+	op.Dump.Subnets = append(op.Dump.Subnets, s)
+
+	return nil
+}

pkg/resources/dumpmodel.go

@@ -23,8 +23,15 @@ type Instance struct {
 	Roles           []string `json:"roles,omitempty"`
 }
 
+// Subnet is the type for an subnetwork in a dump
+type Subnet struct {
+	ID   string `json:"id,omitempty"`
+	Zone string `json:"zone,omitempty"`
+}
+
 // Dump is the type for a dump result
 type Dump struct {
 	Resources []interface{} `json:"resources,omitempty"`
 	Instances []*Instance   `json:"instances,omitempty"`
+	Subnets   []*Subnet     `json:"subnets,omitempty"`
 }