141 lines
3.9 KiB
Go
141 lines
3.9 KiB
Go
package aws
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import (
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"fmt"
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"log"
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"strings"
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"github.com/aws/aws-sdk-go/aws"
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"github.com/aws/aws-sdk-go/aws/awserr"
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"github.com/aws/aws-sdk-go/service/ec2"
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"github.com/hashicorp/terraform/helper/schema"
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)
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func resourceAwsVpnConnectionRoute() *schema.Resource {
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return &schema.Resource{
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// You can't update a route. You can just delete one and make
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// a new one.
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Create: resourceAwsVpnConnectionRouteCreate,
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Read: resourceAwsVpnConnectionRouteRead,
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Delete: resourceAwsVpnConnectionRouteDelete,
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Schema: map[string]*schema.Schema{
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"destination_cidr_block": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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ForceNew: true,
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},
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"vpn_connection_id": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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ForceNew: true,
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},
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},
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}
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}
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func resourceAwsVpnConnectionRouteCreate(d *schema.ResourceData, meta interface{}) error {
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conn := meta.(*AWSClient).ec2conn
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createOpts := &ec2.CreateVpnConnectionRouteInput{
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DestinationCidrBlock: aws.String(d.Get("destination_cidr_block").(string)),
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VpnConnectionId: aws.String(d.Get("vpn_connection_id").(string)),
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}
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// Create the route.
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log.Printf("[DEBUG] Creating VPN connection route")
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_, err := conn.CreateVpnConnectionRoute(createOpts)
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if err != nil {
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return fmt.Errorf("Error creating VPN connection route: %s", err)
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}
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// Store the ID by the only two data we have available to us.
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d.SetId(fmt.Sprintf("%s:%s", *createOpts.DestinationCidrBlock, *createOpts.VpnConnectionId))
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return resourceAwsVpnConnectionRouteRead(d, meta)
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}
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func resourceAwsVpnConnectionRouteRead(d *schema.ResourceData, meta interface{}) error {
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conn := meta.(*AWSClient).ec2conn
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cidrBlock, vpnConnectionId := resourceAwsVpnConnectionRouteParseId(d.Id())
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routeFilters := []*ec2.Filter{
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&ec2.Filter{
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Name: aws.String("route.destination-cidr-block"),
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Values: []*string{aws.String(cidrBlock)},
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},
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&ec2.Filter{
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Name: aws.String("vpn-connection-id"),
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Values: []*string{aws.String(vpnConnectionId)},
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},
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}
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// Technically, we know everything there is to know about the route
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// from its ID, but we still want to catch cases where it changes
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// outside of terraform and results in a stale state file. Hence,
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// conduct a read.
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resp, err := conn.DescribeVpnConnections(&ec2.DescribeVpnConnectionsInput{
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Filters: routeFilters,
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})
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if err != nil {
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if ec2err, ok := err.(awserr.Error); ok && ec2err.Code() == "InvalidVpnConnectionID.NotFound" {
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d.SetId("")
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return nil
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} else {
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log.Printf("[ERROR] Error finding VPN connection route: %s", err)
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return err
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}
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}
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if resp == nil || len(resp.VpnConnections) == 0 {
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// This is kind of a weird edge case. I'd rather return an error
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// instead of just blindly setting the ID to ""... since I don't know
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// what might cause this.
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return fmt.Errorf("No VPN connections returned")
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}
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vpnConnection := resp.VpnConnections[0]
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var found bool
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for _, r := range vpnConnection.Routes {
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if *r.DestinationCidrBlock == cidrBlock {
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d.Set("destination_cidr_block", *r.DestinationCidrBlock)
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d.Set("vpn_connection_id", *vpnConnection.VpnConnectionId)
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found = true
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}
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}
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if !found {
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// Something other than terraform eliminated the route.
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d.SetId("")
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}
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return nil
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}
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func resourceAwsVpnConnectionRouteDelete(d *schema.ResourceData, meta interface{}) error {
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conn := meta.(*AWSClient).ec2conn
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_, err := conn.DeleteVpnConnectionRoute(&ec2.DeleteVpnConnectionRouteInput{
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DestinationCidrBlock: aws.String(d.Get("destination_cidr_block").(string)),
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VpnConnectionId: aws.String(d.Get("vpn_connection_id").(string)),
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})
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if err != nil {
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if ec2err, ok := err.(awserr.Error); ok && ec2err.Code() == "InvalidVpnConnectionID.NotFound" {
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d.SetId("")
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return nil
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} else {
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log.Printf("[ERROR] Error deleting VPN connection route: %s", err)
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return err
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}
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}
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return nil
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}
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func resourceAwsVpnConnectionRouteParseId(id string) (string, string) {
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parts := strings.SplitN(id, ":", 2)
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return parts[0], parts[1]
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}
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