// SSHAddress returns a function that can be given to the SSH communicator
// for determining the SSH address based on the server AccessIPv4 setting..
func SSHAddress(csp gophercloud.CloudServersProvider, port int) func(multistep.StateBag) (string, error) {
return func(state multistep.StateBag) (string, error) {
s := state.Get("server").(*gophercloud.Server)
if ip := state.Get("access_ip").(gophercloud.FloatingIp); ip.Ip != "" {
return fmt.Sprintf("%s:%d", ip.Ip, port), nil
}
ip_pools, err := s.AllAddressPools()
if err != nil {
return "", errors.New("Error parsing SSH addresses")
}
for pool, addresses := range ip_pools {
if pool != "" {
for _, address := range addresses {
if address.Addr != "" && address.Version == 4 {
return fmt.Sprintf("%s:%d", address.Addr, port), nil
}
}
}
}
serverState, err := csp.ServerById(s.Id)
if err != nil {
return "", err
}
state.Put("server", serverState)
time.Sleep(1 * time.Second)
return "", errors.New("couldn't determine IP address for server")
}
}
func withServer(api gophercloud.CloudServersProvider, f func(string)) {
id, err := createServer(api, "", "", "", "")
if err != nil {
panic(err)
}
for {
s, err := api.ServerById(id)
if err != nil {
panic(err)
}
if s.Status == "ACTIVE" {
break
}
time.Sleep(10 * time.Second)
}
f(id)
// I've learned that resizing an instance can fail if a delete request
// comes in prior to its completion. This ends up leaving the server
// in an error state, and neither the resize NOR the delete complete.
// This is a bug in OpenStack, as far as I'm concerned, but thankfully,
// there's an easy work-around -- just wait for your server to return to
// active state first!
waitForServerState(api, id, "ACTIVE")
err = api.DeleteServerById(id)
if err != nil {
panic(err)
}
}
// ServerStateRefreshFunc returns a StateRefreshFunc that is used to watch
// an openstacn server.
func ServerStateRefreshFunc(csp gophercloud.CloudServersProvider, s *gophercloud.Server) StateRefreshFunc {
return func() (interface{}, string, int, error) {
resp, err := csp.ServerById(s.Id)
if err != nil {
log.Printf("Error on ServerStateRefresh: %s", err)
return nil, "", 0, err
}
return resp, resp.Status, resp.Progress, nil
}
}
func WaitForServerState(api gophercloud.CloudServersProvider, id string) resource.StateRefreshFunc {
return func() (interface{}, string, error) {
s, err := api.ServerById(id)
if err != nil {
return nil, "", err
}
return nil, s.Status, nil
}
}
// waitForServerState polls, every 10 seconds, for a given server to appear in the indicated state.
// This call will block forever if it never appears in the desired state, so if a timeout is required,
// make sure to call this function in a goroutine.
func waitForServerState(api gophercloud.CloudServersProvider, id, state string) error {
for {
s, err := api.ServerById(id)
if err != nil {
return err
}
if s.Status == state {
return nil
}
time.Sleep(10 * time.Second)
}
panic("Impossible")
}
// ServerStateRefreshFunc returns a StateRefreshFunc that is used to watch
// an openstack server.
func ServerStateRefreshFunc(csp gophercloud.CloudServersProvider, s *gophercloud.Server) StateRefreshFunc {
return func() (interface{}, string, int, error) {
resp, err := csp.ServerById(s.Id)
if err != nil {
urce, ok := err.(*perigee.UnexpectedResponseCodeError)
if ok && (urce.Actual == 404) {
log.Printf("404 on ServerStateRefresh, returning DELETED")
return nil, "DELETED", 0, nil
} else {
log.Printf("Error on ServerStateRefresh: %s", err)
return nil, "", 0, err
}
}
return resp, resp.Status, resp.Progress, nil
}
}
// SSHAddress returns a function that can be given to the SSH communicator
// for determining the SSH address based on the server AccessIPv4 setting..
func SSHAddress(csp gophercloud.CloudServersProvider, port int) func(multistep.StateBag) (string, error) {
return func(state multistep.StateBag) (string, error) {
for j := 0; j < 2; j++ {
s := state.Get("server").(*gophercloud.Server)
if s.AccessIPv4 != "" {
return fmt.Sprintf("%s:%d", s.AccessIPv4, port), nil
}
serverState, err := csp.ServerById(s.Id)
if err != nil {
return "", err
}
state.Put("server", serverState)
time.Sleep(1 * time.Second)
}
return "", errors.New("couldn't determine IP address for server")
}
}
func tryAllAddresses(id string, api gophercloud.CloudServersProvider) {
log("Getting the server instance")
s, err := api.ServerById(id)
if err != nil {
panic(err)
}
log("Getting the complete set of pools")
ps, err := s.AllAddressPools()
if err != nil {
panic(err)
}
log("Listing IPs for each pool")
for k, v := range ps {
log(fmt.Sprintf(" Pool %s", k))
for _, a := range v {
log(fmt.Sprintf(" IP: %s, Version: %d", a.Addr, a.Version))
}
}
}