func waitSSHConnection(ctx CommandContext, args RunArgs, serverID string) (chan notifSSHConnection, string, error) {
notif := make(chan notifSSHConnection)
// Resolve gateway
gateway, err := api.ResolveGateway(ctx.API, args.Gateway)
if err != nil {
return nil, "", fmt.Errorf("cannot resolve Gateway '%s': %v", args.Gateway, err)
}
// waiting for server to be ready
logrus.Debug("Waiting for server to be ready")
// We wait for 30 seconds, which is the minimal amount of time needed by a server to boot
go func() {
server, err := api.WaitForServerReady(ctx.API, serverID, gateway)
if err != nil {
notif <- notifSSHConnection{
err: fmt.Errorf("cannot get access to server %s: %v", serverID, err),
}
return
}
logrus.Debugf("SSH server is available: %s:22", server.PublicAddress.IP)
logrus.Info("Server is ready !")
notif <- notifSSHConnection{
server: server,
}
}()
return notif, gateway, nil
}
// restartIdentifiers resolves server IDs, restarts, and waits for them to be ready (-w)
func restartIdentifiers(ctx CommandContext, wait bool, servers []string, cr chan string) {
var wg sync.WaitGroup
for _, needle := range servers {
wg.Add(1)
go func(needle string) {
defer wg.Done()
server := ctx.API.GetServerID(needle)
res := server
err := ctx.API.PostServerAction(server, "reboot")
if err != nil {
if err.Error() != "server is being stopped or rebooted" {
logrus.Errorf("failed to restart server %s: %s", server, err)
}
res = ""
} else {
if wait {
// FIXME: handle gateway
api.WaitForServerReady(ctx.API, server, "")
}
}
cr <- res
}(needle)
}
wg.Wait()
close(cr)
}
func resourceServerCreate(d *schema.ResourceData, m interface{}) error {
scaleway := m.(*api.ScalewayAPI)
image := d.Get("image").(string)
volumes := make(map[string]string)
/*for k, v := range d.Get("volumes").(map[string]interface{}) {
volumes[k] = v.(string)
}*/
var def api.ScalewayServerDefinition
def.Name = d.Get("name").(string)
def.Image = &image
def.Volumes = volumes
if bootscriptI, ok := d.GetOk("bootscript"); ok {
bootscript := bootscriptI.(string)
def.Bootscript = &bootscript
}
if tags, ok := d.GetOk("tags"); ok {
def.Tags = tags.([]string)
}
id, err := scaleway.PostServer(def)
if err != nil {
serr := err.(api.ScalewayAPIError)
// _, _ := json.Marshal(def)
return fmt.Errorf("Error Posting server with image %s. Reason: %s", image, serr.APIMessage)
}
err = scaleway.PostServerAction(id, "poweron")
if err != nil {
return err
}
d.SetId(id)
_, err = api.WaitForServerReady(scaleway, id, "")
if err != nil {
return err
}
return resourceServerRead(d, m)
}
// RunExec is the handler for 'scw exec'
func RunExec(ctx CommandContext, args ExecArgs) error {
var fingerprints []string
done := make(chan struct{})
serverID, err := ctx.API.GetServerID(args.Server)
if err != nil {
return err
}
go func() {
fingerprints = ctx.API.GetSSHFingerprintFromServer(serverID)
close(done)
}()
// Resolve gateway
if args.Gateway == "" {
args.Gateway = ctx.Getenv("SCW_GATEWAY")
}
var gateway string
if args.Gateway == serverID || args.Gateway == args.Server {
logrus.Debugf("The server and the gateway are the same host, using direct access to the server")
gateway = ""
} else {
gateway, err = api.ResolveGateway(ctx.API, args.Gateway)
if err != nil {
return fmt.Errorf("Cannot resolve Gateway '%s': %v", args.Gateway, err)
}
if gateway != "" {
logrus.Debugf("The server will be accessed using the gateway '%s' as a SSH relay", gateway)
}
}
var server *api.ScalewayServer
if args.Wait {
// --wait
logrus.Debugf("Waiting for server to be ready")
server, err = api.WaitForServerReady(ctx.API, serverID, gateway)
if err != nil {
return fmt.Errorf("Failed to wait for server to be ready, %v", err)
}
} else {
// no --wait
logrus.Debugf("scw won't wait for the server to be ready, if it is not, the command will fail")
server, err = ctx.API.GetServer(serverID)
if err != nil {
rerr := fmt.Errorf("Failed to get server information for %s: %v", serverID, err)
if err.Error() == `"`+serverID+`" not found` {
return fmt.Errorf("%v\nmaybe try to flush the cache with : scw _flush-cache", rerr)
}
return rerr
}
}
if server.PublicAddress.IP == "" && gateway == "" {
logrus.Warn(`Your host has no public IP address, you should use '--gateway', see 'scw help exec'`)
}
// --timeout
if args.Timeout > 0 {
logrus.Debugf("Setting up a global timeout of %d seconds", args.Timeout)
// FIXME: avoid use of log.Fatalf here
go func() {
time.Sleep(time.Duration(args.Timeout*1000) * time.Millisecond)
logrus.Fatalf("Operation timed out")
}()
}
<-done
if len(fingerprints) > 0 {
for i := range fingerprints {
fmt.Fprintf(ctx.Stdout, "%s\n", fingerprints[i])
}
}
logrus.Debugf("PublicDNS %s", serverID+api.URLPublicDNS)
logrus.Debugf("PrivateDNS %s", serverID+api.URLPrivateDNS)
if err = utils.SSHExec(server.PublicAddress.IP, server.PrivateIP, args.SSHUser, args.SSHPort, args.Command, !args.Wait, gateway); err != nil {
return fmt.Errorf("Failed to run the command: %v", err)
}
logrus.Debugf("Command successfully executed")
return nil
}
// Run is the handler for 'scw run'
func Run(ctx CommandContext, args RunArgs) error {
if args.Gateway == "" {
args.Gateway = ctx.Getenv("SCW_GATEWAY")
}
if args.TmpSSHKey {
err := AddSSHKeyToTags(ctx, &args.Tags, args.Image)
if err != nil {
return err
}
}
env := strings.Join(args.Tags, " ")
volume := strings.Join(args.Volumes, " ")
// create IMAGE
logrus.Info("Server creation ...")
dynamicIPRequired := args.Gateway == ""
serverID, err := api.CreateServer(ctx.API, args.Image, args.Name, args.Bootscript, env, volume, dynamicIPRequired)
if err != nil {
return fmt.Errorf("failed to create server: %v", err)
}
logrus.Infof("Server created: %s", serverID)
if args.AutoRemove {
defer ctx.API.DeleteServerSafe(serverID)
}
// start SERVER
logrus.Info("Server start requested ...")
err = api.StartServer(ctx.API, serverID, false)
if err != nil {
return fmt.Errorf("failed to start server %s: %v", serverID, err)
}
logrus.Info("Server is starting, this may take up to a minute ...")
if args.Detach {
fmt.Fprintln(ctx.Stdout, serverID)
return nil
} else {
// Sync cache on disk
ctx.API.Sync()
}
if args.Attach {
// Attach to server serial
logrus.Info("Attaching to server console ...")
err = utils.AttachToSerial(serverID, ctx.API.Token, true)
if err != nil {
return fmt.Errorf("cannot attach to server serial: %v", err)
}
} else {
// Resolve gateway
gateway, err := api.ResolveGateway(ctx.API, args.Gateway)
if err != nil {
return fmt.Errorf("cannot resolve Gateway '%s': %v", args.Gateway, err)
}
// waiting for server to be ready
logrus.Debug("Waiting for server to be ready")
// We wait for 30 seconds, which is the minimal amount of time needed by a server to boot
server, err := api.WaitForServerReady(ctx.API, serverID, gateway)
if err != nil {
return fmt.Errorf("cannot get access to server %s: %v", serverID, err)
}
logrus.Debugf("SSH server is available: %s:22", server.PublicAddress.IP)
logrus.Info("Server is ready !")
// exec -w SERVER COMMAND ARGS...
if len(args.Command) < 1 {
logrus.Info("Connecting to server ...")
err = utils.SSHExec(server.PublicAddress.IP, server.PrivateIP, []string{}, false, gateway)
} else {
logrus.Infof("Executing command: %s ...", args.Command)
err = utils.SSHExec(server.PublicAddress.IP, server.PrivateIP, args.Command, false, gateway)
}
if err != nil {
return fmt.Errorf("command execution failed: %v", err)
}
logrus.Info("Command successfuly executed")
}
return nil
}
