// ParseLogDriverFlags parses a silly string format for log driver and options.
// Fully baked log driver config should be returned.
//
// If no log driver is available, nil, nil will be returned.
func ParseLogDriverFlags(flags *pflag.FlagSet) (*api.Driver, error) {
if !flags.Changed("log-driver") {
return nil, nil
}
name, err := flags.GetString("log-driver")
if err != nil {
return nil, err
}
var opts map[string]string
if flags.Changed("log-opt") {
rawOpts, err := flags.GetStringSlice("log-opt")
if err != nil {
return nil, err
}
opts = make(map[string]string, len(rawOpts))
for _, rawOpt := range rawOpts {
parts := strings.SplitN(rawOpt, "=", 2)
if len(parts) == 1 {
opts[parts[0]] = ""
continue
}
opts[parts[0]] = parts[1]
}
}
return &api.Driver{
Name: name,
Options: opts,
}, nil
}
func updatePlacement(flags *pflag.FlagSet, placement *swarm.Placement) {
field, _ := flags.GetStringSlice(flagConstraintAdd)
placement.Constraints = append(placement.Constraints, field...)
toRemove := buildToRemoveSet(flags, flagConstraintRemove)
placement.Constraints = removeItems(placement.Constraints, toRemove, itemKey)
}
// parseBind only supports a very simple version of bind for testing the most
// basic of data flows. Replace with a --mount flag, similar to what we have in
// docker service.
func parseBind(flags *pflag.FlagSet, spec *api.ServiceSpec) error {
if flags.Changed("bind") {
binds, err := flags.GetStringSlice("bind")
if err != nil {
return err
}
container := spec.Task.GetContainer()
for _, bind := range binds {
parts := strings.SplitN(bind, ":", 2)
if len(parts) != 2 {
return fmt.Errorf("bind format %q not supported", bind)
}
container.Mounts = append(container.Mounts, api.Mount{
Type: api.MountTypeBind,
Source: parts[0],
Target: parts[1],
Writable: true,
})
}
}
return nil
}
func parseContainer(flags *pflag.FlagSet, spec *api.ServiceSpec) error {
if flags.Changed("image") {
image, err := flags.GetString("image")
if err != nil {
return err
}
spec.Task.GetContainer().Image = image
}
if flags.Changed("args") {
args, err := flags.GetStringSlice("args")
if err != nil {
return err
}
spec.Task.GetContainer().Args = args
}
if flags.Changed("env") {
env, err := flags.GetStringSlice("env")
if err != nil {
return err
}
spec.Task.GetContainer().Env = env
}
return nil
}
func parsePorts(flags *pflag.FlagSet, spec *api.ServiceSpec) error {
if !flags.Changed("ports") {
return nil
}
portConfigs, err := flags.GetStringSlice("ports")
if err != nil {
return err
}
ports := []*api.PortConfig{}
for _, portConfig := range portConfigs {
name, protocol, port, swarmPort, err := parsePortConfig(portConfig)
if err != nil {
return err
}
ports = append(ports, &api.PortConfig{
Name: name,
Protocol: protocol,
TargetPort: port,
PublishedPort: swarmPort,
// In swarmctl all ports are by default
// PublishModeHost
PublishMode: api.PublishModeHost,
})
}
spec.Endpoint = &api.EndpointSpec{
Ports: ports,
}
return nil
}
func mergeNetworks(flags *pflag.FlagSet, attachments *[]swarm.NetworkAttachmentConfig) {
if !flags.Changed("network") {
return
}
networks, _ := flags.GetStringSlice("network")
for _, network := range networks {
*attachments = append(*attachments, swarm.NetworkAttachmentConfig{Target: network})
}
}
func updateNetworks(flags *pflag.FlagSet, attachments *[]swarm.NetworkAttachmentConfig) {
if !flags.Changed(flagNetwork) {
return
}
networks, _ := flags.GetStringSlice(flagNetwork)
var localAttachments []swarm.NetworkAttachmentConfig
for _, network := range networks {
localAttachments = append(localAttachments, swarm.NetworkAttachmentConfig{Target: network})
}
*attachments = localAttachments
}
func parsePlacement(flags *pflag.FlagSet, spec *api.ServiceSpec) error {
if flags.Changed("constraint") {
constraints, err := flags.GetStringSlice("constraint")
if err != nil {
return err
}
if spec.Task.Placement == nil {
spec.Task.Placement = &api.Placement{}
}
spec.Task.Placement.Constraints = constraints
}
return nil
}
func updateNetworks(flags *pflag.FlagSet, attachments *[]swarm.NetworkAttachmentConfig) {
if flags.Changed(flagNetworkAdd) {
networks, _ := flags.GetStringSlice(flagNetworkAdd)
for _, network := range networks {
*attachments = append(*attachments, swarm.NetworkAttachmentConfig{Target: network})
}
}
toRemove := buildToRemoveSet(flags, flagNetworkRemove)
newNetworks := []swarm.NetworkAttachmentConfig{}
for _, network := range *attachments {
if _, exists := toRemove[network.Target]; !exists {
newNetworks = append(newNetworks, network)
}
}
*attachments = newNetworks
}
func mergeNodeUpdate(flags *pflag.FlagSet) func(*swarm.Node) {
return func(node *swarm.Node) {
mergeString := func(flag string, field *string) {
if flags.Changed(flag) {
*field, _ = flags.GetString(flag)
}
}
mergeRole := func(flag string, field *swarm.NodeRole) {
if flags.Changed(flag) {
str, _ := flags.GetString(flag)
*field = swarm.NodeRole(str)
}
}
mergeMembership := func(flag string, field *swarm.NodeMembership) {
if flags.Changed(flag) {
str, _ := flags.GetString(flag)
*field = swarm.NodeMembership(str)
}
}
mergeAvailability := func(flag string, field *swarm.NodeAvailability) {
if flags.Changed(flag) {
str, _ := flags.GetString(flag)
*field = swarm.NodeAvailability(str)
}
}
mergeLabels := func(flag string, field *map[string]string) {
if flags.Changed(flag) {
values, _ := flags.GetStringSlice(flag)
for key, value := range runconfigopts.ConvertKVStringsToMap(values) {
(*field)[key] = value
}
}
}
spec := &node.Spec
mergeString("name", &spec.Name)
// TODO: setting labels is not working
mergeLabels("label", &spec.Labels)
mergeRole("role", &spec.Role)
mergeMembership("membership", &spec.Membership)
mergeAvailability("availability", &spec.Availability)
}
}
func updateGroups(flags *pflag.FlagSet, groups *[]string) error {
if flags.Changed(flagGroupAdd) {
values, err := flags.GetStringSlice(flagGroupAdd)
if err != nil {
return err
}
*groups = append(*groups, values...)
}
toRemove := buildToRemoveSet(flags, flagGroupRemove)
newGroups := []string{}
for _, group := range *groups {
if _, exists := toRemove[group]; !exists {
newGroups = append(newGroups, group)
}
}
// Sort so that result is predictable.
sort.Strings(newGroups)
*groups = newGroups
return nil
}
// parseVolume only supports a very simple version of annonymous volumes for
// testing the most basic of data flows. Replace with a --mount flag, similar
// to what we have in docker service.
func parseVolume(flags *pflag.FlagSet, spec *api.ServiceSpec) error {
if flags.Changed("volume") {
volumes, err := flags.GetStringSlice("volume")
if err != nil {
return err
}
container := spec.Task.GetContainer()
for _, volume := range volumes {
if strings.Contains(volume, ":") {
return fmt.Errorf("volume format %q not supported", volume)
}
container.Mounts = append(container.Mounts, api.Mount{
Type: api.MountTypeVolume,
Target: volume,
})
}
}
return nil
}
func mergeService(spec *swarm.ServiceSpec, flags *pflag.FlagSet) error {
mergeString := func(flag string, field *string) {
if flags.Changed(flag) {
*field, _ = flags.GetString(flag)
}
}
mergeListOpts := func(flag string, field *[]string) {
if flags.Changed(flag) {
value := flags.Lookup(flag).Value.(*opts.ListOpts)
*field = value.GetAll()
}
}
mergeSlice := func(flag string, field *[]string) {
if flags.Changed(flag) {
*field, _ = flags.GetStringSlice(flag)
}
}
mergeInt64Value := func(flag string, field *int64) {
if flags.Changed(flag) {
*field = flags.Lookup(flag).Value.(int64Value).Value()
}
}
mergeDuration := func(flag string, field *time.Duration) {
if flags.Changed(flag) {
*field, _ = flags.GetDuration(flag)
}
}
mergeDurationOpt := func(flag string, field *time.Duration) {
if flags.Changed(flag) {
*field = *flags.Lookup(flag).Value.(*DurationOpt).Value()
}
}
mergeUint64 := func(flag string, field *uint64) {
if flags.Changed(flag) {
*field, _ = flags.GetUint64(flag)
}
}
mergeUint64Opt := func(flag string, field *uint64) {
if flags.Changed(flag) {
*field = *flags.Lookup(flag).Value.(*Uint64Opt).Value()
}
}
cspec := &spec.TaskTemplate.ContainerSpec
task := &spec.TaskTemplate
mergeString("name", &spec.Name)
mergeLabels(flags, &spec.Labels)
mergeString("image", &cspec.Image)
mergeSlice("command", &cspec.Command)
mergeSlice("arg", &cspec.Command)
mergeListOpts("env", &cspec.Env)
mergeString("workdir", &cspec.Dir)
mergeString("user", &cspec.User)
mergeMounts(flags, &cspec.Mounts)
mergeInt64Value("limit-cpu", &task.Resources.Limits.NanoCPUs)
mergeInt64Value("limit-memory", &task.Resources.Limits.MemoryBytes)
mergeInt64Value("reserve-cpu", &task.Resources.Reservations.NanoCPUs)
mergeInt64Value("reserve-memory", &task.Resources.Reservations.MemoryBytes)
mergeDurationOpt("stop-grace-period", cspec.StopGracePeriod)
if flags.Changed("restart-policy-condition") {
value, _ := flags.GetString("restart-policy-condition")
task.RestartPolicy.Condition = swarm.RestartPolicyCondition(value)
}
mergeDurationOpt("restart-policy-delay", task.RestartPolicy.Delay)
mergeUint64Opt("restart-policy-max-attempts", task.RestartPolicy.MaxAttempts)
mergeDurationOpt("restart-policy-window", task.RestartPolicy.Window)
mergeSlice("constraint", &task.Placement.Constraints)
if err := mergeMode(flags, &spec.Mode); err != nil {
return err
}
mergeUint64("updateconfig-parallelism", &spec.UpdateConfig.Parallelism)
mergeDuration("updateconfig-delay", &spec.UpdateConfig.Delay)
mergeNetworks(flags, &spec.Networks)
if flags.Changed("endpoint-mode") {
value, _ := flags.GetString("endpoint-mode")
spec.EndpointSpec.Mode = swarm.ResolutionMode(value)
}
mergePorts(flags, &spec.EndpointSpec.Ports)
return nil
}
func mergeService(spec *swarm.ServiceSpec, flags *pflag.FlagSet) error {
mergeString := func(flag string, field *string) {
if flags.Changed(flag) {
*field, _ = flags.GetString(flag)
}
}
mergeListOpts := func(flag string, field *[]string) {
if flags.Changed(flag) {
value := flags.Lookup(flag).Value.(*opts.ListOpts)
*field = value.GetAll()
}
}
mergeSlice := func(flag string, field *[]string) {
if flags.Changed(flag) {
*field, _ = flags.GetStringSlice(flag)
}
}
mergeInt64Value := func(flag string, field *int64) {
if flags.Changed(flag) {
*field = flags.Lookup(flag).Value.(int64Value).Value()
}
}
mergeDuration := func(flag string, field *time.Duration) {
if flags.Changed(flag) {
*field, _ = flags.GetDuration(flag)
}
}
mergeDurationOpt := func(flag string, field *time.Duration) {
if flags.Changed(flag) {
*field = *flags.Lookup(flag).Value.(*DurationOpt).Value()
}
}
mergeUint64 := func(flag string, field *uint64) {
if flags.Changed(flag) {
*field, _ = flags.GetUint64(flag)
}
}
mergeUint64Opt := func(flag string, field *uint64) {
if flags.Changed(flag) {
*field = *flags.Lookup(flag).Value.(*Uint64Opt).Value()
}
}
cspec := &spec.TaskTemplate.ContainerSpec
task := &spec.TaskTemplate
mergeString(flagName, &spec.Name)
mergeLabels(flags, &spec.Labels)
mergeString("image", &cspec.Image)
mergeSlice("command", &cspec.Command)
mergeSlice("arg", &cspec.Command)
mergeListOpts("env", &cspec.Env)
mergeString("workdir", &cspec.Dir)
mergeString("user", &cspec.User)
mergeMounts(flags, &cspec.Mounts)
if flags.Changed(flagLimitCPU) || flags.Changed(flagLimitMemory) {
if task.Resources == nil {
task.Resources = &swarm.ResourceRequirements{}
}
task.Resources.Limits = &swarm.Resources{}
mergeInt64Value(flagLimitCPU, &task.Resources.Limits.NanoCPUs)
mergeInt64Value(flagLimitMemory, &task.Resources.Limits.MemoryBytes)
}
if flags.Changed(flagReserveCPU) || flags.Changed(flagReserveMemory) {
if task.Resources == nil {
task.Resources = &swarm.ResourceRequirements{}
}
task.Resources.Reservations = &swarm.Resources{}
mergeInt64Value(flagReserveCPU, &task.Resources.Reservations.NanoCPUs)
mergeInt64Value(flagReserveMemory, &task.Resources.Reservations.MemoryBytes)
}
mergeDurationOpt("stop-grace-period", cspec.StopGracePeriod)
if flags.Changed(flagRestartCondition) || flags.Changed(flagRestartDelay) || flags.Changed(flagRestartMaxAttempts) || flags.Changed(flagRestartWindow) {
if task.RestartPolicy == nil {
task.RestartPolicy = &swarm.RestartPolicy{}
}
if flags.Changed(flagRestartCondition) {
value, _ := flags.GetString(flagRestartCondition)
task.RestartPolicy.Condition = swarm.RestartPolicyCondition(value)
}
mergeDurationOpt(flagRestartDelay, task.RestartPolicy.Delay)
mergeUint64Opt(flagRestartMaxAttempts, task.RestartPolicy.MaxAttempts)
mergeDurationOpt((flagRestartWindow), task.RestartPolicy.Window)
}
if flags.Changed(flagConstraint) {
task.Placement = &swarm.Placement{}
mergeSlice(flagConstraint, &task.Placement.Constraints)
}
if err := mergeMode(flags, &spec.Mode); err != nil {
return err
}
if flags.Changed(flagUpdateParallelism) || flags.Changed(flagUpdateDelay) {
if spec.UpdateConfig == nil {
spec.UpdateConfig = &swarm.UpdateConfig{}
}
mergeUint64(flagUpdateParallelism, &spec.UpdateConfig.Parallelism)
mergeDuration(flagUpdateDelay, &spec.UpdateConfig.Delay)
}
mergeNetworks(flags, &spec.Networks)
if flags.Changed(flagEndpointMode) {
value, _ := flags.GetString(flagEndpointMode)
spec.EndpointSpec.Mode = swarm.ResolutionMode(value)
}
if flags.Changed(flagPublish) {
if spec.EndpointSpec == nil {
spec.EndpointSpec = &swarm.EndpointSpec{}
}
mergePorts(flags, &spec.EndpointSpec.Ports)
}
return nil
}
// parseTmpfs supports a simple tmpfs decl, similar to docker run.
//
// This should go away.
func parseTmpfs(flags *pflag.FlagSet, spec *api.ServiceSpec) error {
if flags.Changed("tmpfs") {
tmpfss, err := flags.GetStringSlice("tmpfs")
if err != nil {
return err
}
container := spec.Task.GetContainer()
// TODO(stevvooe): Nasty inline parsing code, replace with mount syntax.
for _, tmpfs := range tmpfss {
parts := strings.SplitN(tmpfs, ":", 2)
if len(parts) < 1 {
return errors.Errorf("invalid mount spec: %v", tmpfs)
}
if len(parts[0]) == 0 || !path.IsAbs(parts[0]) {
return errors.Errorf("invalid mount spec: %v", tmpfs)
}
m := api.Mount{
Type: api.MountTypeTmpfs,
Target: parts[0],
}
if len(parts) == 2 {
if strings.Contains(parts[1], ":") {
// repeated colon is illegal
return errors.Errorf("invalid mount spec: %v", tmpfs)
}
// BUG(stevvooe): Cobra stringslice actually doesn't correctly
// handle comma separated values, so multiple flags aren't
// really supported. We'll have to replace StringSlice with a
// type that doesn't use the csv parser. This is good enough
// for now.
flags := strings.Split(parts[1], ",")
var opts api.Mount_TmpfsOptions
for _, flag := range flags {
switch {
case strings.HasPrefix(flag, "size="):
meat := strings.TrimPrefix(flag, "size=")
// try to parse this into bytes
i, err := strconv.ParseInt(meat, 10, 64)
if err != nil {
// remove suffux and try again
suffix := meat[len(meat)-1]
meat = meat[:len(meat)-1]
var multiplier int64 = 1
switch suffix {
case 'g':
multiplier = 1 << 30
case 'm':
multiplier = 1 << 20
case 'k':
multiplier = 1 << 10
default:
return errors.Errorf("invalid size format: %v", flag)
}
// reparse the meat
var err error
i, err = strconv.ParseInt(meat, 10, 64)
if err != nil {
return err
}
i *= multiplier
}
opts.SizeBytes = i
case strings.HasPrefix(flag, "mode="):
meat := strings.TrimPrefix(flag, "mode=")
i, err := strconv.ParseInt(meat, 8, 32)
if err != nil {
return err
}
opts.Mode = os.FileMode(i)
case flag == "ro":
m.ReadOnly = true
case flag == "rw":
m.ReadOnly = false
default:
return errors.New("unsupported flag")
}
}
m.TmpfsOptions = &opts
}
fmt.Println("mount", m)
container.Mounts = append(container.Mounts, m)
}
}
return nil
}
func parseContainer(flags *pflag.FlagSet, spec *api.ServiceSpec) error {
if flags.Changed("image") {
image, err := flags.GetString("image")
if err != nil {
return err
}
spec.Task.GetContainer().Image = image
}
if flags.Changed("hostname") {
hostname, err := flags.GetString("hostname")
if err != nil {
return err
}
spec.Task.GetContainer().Hostname = hostname
}
if flags.Changed("command") {
command, err := flags.GetStringSlice("command")
if err != nil {
return err
}
spec.Task.GetContainer().Command = command
}
if flags.Changed("args") {
args, err := flags.GetStringSlice("args")
if err != nil {
return err
}
spec.Task.GetContainer().Args = args
}
if flags.Changed("env") {
env, err := flags.GetStringSlice("env")
if err != nil {
return err
}
spec.Task.GetContainer().Env = env
}
if flags.Changed("tty") {
tty, err := flags.GetBool("tty")
if err != nil {
return err
}
spec.Task.GetContainer().TTY = tty
}
if flags.Changed("open-stdin") {
openStdin, err := flags.GetBool("open-stdin")
if err != nil {
return err
}
spec.Task.GetContainer().OpenStdin = openStdin
}
return nil
}