111 lines
3.0 KiB
Go
111 lines
3.0 KiB
Go
package openstack
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import (
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"errors"
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"fmt"
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"log"
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"time"
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"github.com/gophercloud/gophercloud"
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"github.com/gophercloud/gophercloud/openstack/compute/v2/servers"
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"github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/layer3/floatingips"
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"github.com/hashicorp/packer/helper/multistep"
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)
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// CommHost looks up the host for the communicator.
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func CommHost(
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client *gophercloud.ServiceClient,
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sshinterface string,
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sshipversion string) func(multistep.StateBag) (string, error) {
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return func(state multistep.StateBag) (string, error) {
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s := state.Get("server").(*servers.Server)
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// If we have a specific interface, try that
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if sshinterface != "" {
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if addr := sshAddrFromPool(s, sshinterface, sshipversion); addr != "" {
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log.Printf("[DEBUG] Using IP address %s from specified interface %s to connect", addr, sshinterface)
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return addr, nil
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}
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}
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// If we have a floating IP, use that
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ip := state.Get("access_ip").(*floatingips.FloatingIP)
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if ip != nil && ip.FloatingIP != "" {
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log.Printf("[DEBUG] Using floating IP %s to connect", ip.FloatingIP)
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return ip.FloatingIP, nil
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}
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if s.AccessIPv4 != "" {
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log.Printf("[DEBUG] Using AccessIPv4 %s to connect", s.AccessIPv4)
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return s.AccessIPv4, nil
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}
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// Try to get it from the requested interface
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if addr := sshAddrFromPool(s, sshinterface, sshipversion); addr != "" {
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log.Printf("[DEBUG] Using IP address %s to connect", addr)
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return addr, nil
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}
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s, err := servers.Get(client, s.ID).Extract()
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if err != nil {
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return "", err
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}
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state.Put("server", s)
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time.Sleep(1 * time.Second)
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return "", errors.New("couldn't determine IP address for server")
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}
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}
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func sshAddrFromPool(s *servers.Server, desired string, sshIPVersion string) string {
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// Get all the addresses associated with this server. This
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// was taken directly from Terraform.
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for pool, networkAddresses := range s.Addresses {
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// If we have an SSH interface specified, skip it if no match
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if desired != "" && pool != desired {
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log.Printf(
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"[INFO] Skipping pool %s, doesn't match requested %s",
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pool, desired)
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continue
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}
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elements, ok := networkAddresses.([]interface{})
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if !ok {
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log.Printf(
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"[ERROR] Unknown return type for address field: %#v",
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networkAddresses)
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continue
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}
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for _, element := range elements {
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var addr string
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address := element.(map[string]interface{})
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if address["OS-EXT-IPS:type"] == "floating" {
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addr = address["addr"].(string)
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} else if sshIPVersion == "4" {
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if address["version"].(float64) == 4 {
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addr = address["addr"].(string)
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}
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} else if sshIPVersion == "6" {
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if address["version"].(float64) == 6 {
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addr = fmt.Sprintf("[%s]", address["addr"].(string))
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}
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} else {
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if address["version"].(float64) == 6 {
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addr = fmt.Sprintf("[%s]", address["addr"].(string))
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} else {
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addr = address["addr"].(string)
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}
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}
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if addr != "" {
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log.Printf("[DEBUG] Detected address: %s", addr)
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return addr
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}
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}
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}
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return ""
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}
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