ec2: Add support for AWS VPCs

ec2/vpc.go

+//
+// goamz - Go packages to interact with the Amazon Web Services.
+//
+//   https://wiki.ubuntu.com/goamz
+//
+// Copyright (c) 2014 Canonical Ltd.
+//
+
+package ec2
+
+import (
+        "strconv"
+)
+
+// VPC describes a Virtual Private Cloud (VPC).
+//
+// See http://goo.gl/Uy6ZLL for more details.
+type VPC struct {
+        Id              string `xml:"vpcId"`
+        State           string `xml:"state"`
+        CIDRBlock       string `xml:"cidrBlock"`
+        DHCPOptionsId   string `xml:"dhcpOptionsId"`
+        Tags            []Tag  `xml:"tagSet>item"`
+        InstanceTenancy string `xml:"instanceTenancy"`
+        IsDefault       bool   `xml:"isDefault"`
+}
+
+// CreateVPCResp is the response to a CreateVPC request.
+//
+// See http://goo.gl/nkwjvN for more details.
+type CreateVPCResp struct {
+        RequestId string `xml:"requestId"`
+        VPC       VPC    `xml:"vpc"`
+}
+
+// CreateVPC creates a VPC with the specified CIDR block.
+//
+// The smallest VPC that can be created uses a /28 netmask (16 IP
+// addresses), and the largest uses a /16 netmask (65,536 IP
+// addresses).
+//
+// The instanceTenancy value holds the tenancy options for instances
+// launched into the VPC - either "default" or "dedicated".
+//
+// See http://goo.gl/nkwjvN for more details.
+func (ec2 *EC2) CreateVPC(CIDRBlock, instanceTenancy string) (resp *CreateVPCResp, err error) {
+        params := makeParamsVPC("CreateVpc")
+        params["CidrBlock"] = CIDRBlock
+        if instanceTenancy == "" {
+                instanceTenancy = "default"
+        }
+        params["InstanceTenancy"] = instanceTenancy
+        resp = &CreateVPCResp{}
+        err = ec2.query(params, resp)
+        if err != nil {
+                return nil, err
+        }
+        return resp, nil
+}
+
+// DeleteVPC deletes the VPC with the specified id. All gateways and
+// resources that are associated with the VPC must have been
+// previously deleted, including instances running in the VPC, and
+// non-default security groups and route tables associated with the
+// VPC.
+//
+// See http://goo.gl/bcxtbf for more details.
+func (ec2 *EC2) DeleteVPC(id string) (resp *SimpleResp, err error) {
+        params := makeParamsVPC("DeleteVpc")
+        params["VpcId"] = id
+        resp = &SimpleResp{}
+        err = ec2.query(params, resp)
+        if err != nil {
+                return nil, err
+        }
+        return resp, nil
+}
+
+// VPCsResp is the response to a VPCs request.
+//
+// See http://goo.gl/Y5kHqG for more details.
+type VPCsResp struct {
+        RequestId string `xml:"requestId"`
+        VPCs      []VPC  `xml:"vpcSet>item"`
+}
+
+// VPCs describes one or more VPCs. Both parameters are optional, and
+// if specified will limit the returned VPCs to the matching ids or
+// filtering rules.
+//
+// See http://goo.gl/Y5kHqG for more details.
+func (ec2 *EC2) VPCs(ids []string, filter *Filter) (resp *VPCsResp, err error) {
+        params := makeParamsVPC("DescribeVpcs")
+        for i, id := range ids {
+                params["VpcId."+strconv.Itoa(i+1)] = id
+        }
+        filter.addParams(params)
+
+        resp = &VPCsResp{}
+        err = ec2.query(params, resp)
+        if err != nil {
+                return nil, err
+        }
+        return resp, nil
+}