// Login authenticates as the entity with the given name and password.
// Subsequent requests on the state will act as that entity. This
// method is usually called automatically by Open. The machine nonce
// should be empty unless logging in as a machine agent.
func (st *State) Login(tag, password, nonce string) error {
err := st.loginV2(tag, password, nonce)
if params.IsCodeNotImplemented(err) {
err = st.loginV1(tag, password, nonce)
if params.IsCodeNotImplemented(err) {
// TODO (cmars): remove fallback once we can drop v0 compatibility
return st.loginV0(tag, password, nonce)
}
}
return err
}
// AddMetricsBatches makes an api call to the uniter requesting it to store metrics batches in state.
func (u *Unit) AddMetricBatches(batches []params.MetricBatch) (map[string]error, error) {
p := params.MetricBatchParams{
Batches: make([]params.MetricBatchParam, len(batches)),
}
batchResults := make(map[string]error, len(batches))
for i, batch := range batches {
p.Batches[i].Tag = u.tag.String()
p.Batches[i].Batch = batch
batchResults[batch.UUID] = nil
}
results := new(params.ErrorResults)
err := u.st.facade.FacadeCall("AddMetricBatches", p, results)
if params.IsCodeNotImplemented(err) {
for _, batch := range batches {
err = u.AddMetrics(batch.Metrics)
if err != nil {
batchResults[batch.UUID] = errors.Annotate(err, "failed to send metric batch")
}
}
return batchResults, nil
} else if err != nil {
return nil, errors.Annotate(err, "failed to send metric batches")
}
for i, result := range results.Results {
batchResults[batches[i].UUID] = result.Error
}
return batchResults, nil
}
func containerManagerConfig(
containerType instance.ContainerType,
provisioner *apiprovisioner.State,
agentConfig agent.Config,
) (container.ManagerConfig, error) {
// Ask the provisioner for the container manager configuration.
managerConfigResult, err := provisioner.ContainerManagerConfig(
params.ContainerManagerConfigParams{Type: containerType},
)
if params.IsCodeNotImplemented(err) {
// We currently don't support upgrading;
// revert to the old configuration.
managerConfigResult.ManagerConfig = container.ManagerConfig{container.ConfigName: container.DefaultNamespace}
}
if err != nil {
return nil, err
}
// If a namespace is specified, that should instead be used as the config name.
if namespace := agentConfig.Value(agent.Namespace); namespace != "" {
managerConfigResult.ManagerConfig[container.ConfigName] = namespace
}
managerConfig := container.ManagerConfig(managerConfigResult.ManagerConfig)
return managerConfig, nil
}
// runRestore will implement the actual calls to the different Client parts
// of restore.
func (c *restoreCommand) runRestore(ctx *cmd.Context) error {
client, closer, err := c.newClient()
if err != nil {
return errors.Trace(err)
}
defer closer()
var target string
var rErr error
if c.filename != "" {
target = c.filename
archive, meta, err := getArchive(c.filename)
if err != nil {
return errors.Trace(err)
}
defer archive.Close()
rErr = client.RestoreReader(archive, meta, c.newClient)
} else {
target = c.backupId
rErr = client.Restore(c.backupId, c.newClient)
}
if params.IsCodeNotImplemented(rErr) {
return errors.Errorf(restoreAPIIncompatibility)
}
if rErr != nil {
return errors.Trace(rErr)
}
fmt.Fprintf(ctx.Stdout, "restore from %q completed\n", target)
return nil
}
// SetStatus sets the status of the service if the passed unitName,
// corresponding to the calling unit, is of the leader.
func (s *Service) SetStatus(unitName string, status params.Status, info string, data map[string]interface{}) error {
//TODO(perrito666) bump api version for this?
if s.st.facade.BestAPIVersion() < 2 {
return errors.NotImplementedf("SetStatus")
}
tag := names.NewUnitTag(unitName)
var result params.ErrorResults
args := params.SetStatus{
Entities: []params.EntityStatusArgs{
{
Tag: tag.String(),
Status: status,
Info: info,
Data: data,
},
},
}
err := s.st.facade.FacadeCall("SetServiceStatus", args, &result)
if err != nil {
if params.IsCodeNotImplemented(err) {
return errors.NotImplementedf("SetServiceStatus")
}
return errors.Trace(err)
}
return result.OneError()
}
func (c *DestroyEnvironmentCommand) Run(ctx *cmd.Context) (result error) {
store, err := configstore.Default()
if err != nil {
return fmt.Errorf("cannot open environment info storage: %v", err)
}
environ, err := environs.NewFromName(c.envName, store)
if err != nil {
if environs.IsEmptyConfig(err) {
// Delete the .jenv file and call it done.
ctx.Infof("removing empty environment file")
return environs.DestroyInfo(c.envName, store)
}
return err
}
if !c.assumeYes {
fmt.Fprintf(ctx.Stdout, destroyEnvMsg, c.envName, environ.Config().Type())
scanner := bufio.NewScanner(ctx.Stdin)
scanner.Scan()
err := scanner.Err()
if err != nil && err != io.EOF {
return fmt.Errorf("Environment destruction aborted: %s", err)
}
answer := strings.ToLower(scanner.Text())
if answer != "y" && answer != "yes" {
return errors.New("environment destruction aborted")
}
}
// If --force is supplied, then don't attempt to use the API.
// This is necessary to destroy broken environments, where the
// API server is inaccessible or faulty.
if !c.force {
defer func() {
if result == nil {
return
}
logger.Errorf(`failed to destroy environment %q
If the environment is unusable, then you may run
juju destroy-environment --force
to forcefully destroy the environment. Upon doing so, review
your environment provider console for any resources that need
to be cleaned up.
`, c.envName)
}()
apiclient, err := juju.NewAPIClientFromName(c.envName)
if err != nil {
return fmt.Errorf("cannot connect to API: %v", err)
}
defer apiclient.Close()
err = apiclient.DestroyEnvironment()
if err != nil && !params.IsCodeNotImplemented(err) {
return fmt.Errorf("destroying environment: %v", err)
}
}
return environs.Destroy(environ, store)
}
// getJoinedRelations finds out what relations the unit is *really* part of,
// working around the fact that pre-1.19 (1.18.1?) unit agents don't write a
// state dir for a relation until a remote unit joins.
func (u *Uniter) getJoinedRelations() (map[int]*uniter.Relation, error) {
var joinedRelationTags []string
for {
var err error
joinedRelationTags, err = u.unit.JoinedRelations()
if err == nil {
break
}
if params.IsCodeNotImplemented(err) {
logger.Infof("waiting for state server to be upgraded")
select {
case <-u.tomb.Dying():
return nil, tomb.ErrDying
case <-time.After(15 * time.Second):
continue
}
}
return nil, err
}
joinedRelations := make(map[int]*uniter.Relation)
for _, tag := range joinedRelationTags {
relation, err := u.st.Relation(tag)
if err != nil {
return nil, err
}
joinedRelations[relation.Id()] = relation
}
return joinedRelations, nil
}
func (task *provisionerTask) startMachine(
machine *apiprovisioner.Machine,
provisioningInfo *params.ProvisioningInfo,
startInstanceParams environs.StartInstanceParams,
) error {
inst, metadata, networkInfo, err := task.broker.StartInstance(startInstanceParams)
if err != nil {
// Set the state to error, so the machine will be skipped next
// time until the error is resolved, but don't return an
// error; just keep going with the other machines.
return task.setErrorStatus("cannot start instance for machine %q: %v", machine, err)
}
nonce := startInstanceParams.MachineConfig.MachineNonce
networks, ifaces := task.prepareNetworkAndInterfaces(networkInfo)
err = machine.SetInstanceInfo(inst.Id(), nonce, metadata, networks, ifaces)
if err != nil && params.IsCodeNotImplemented(err) {
return fmt.Errorf("cannot provision instance %v for machine %q with networks: not implemented", inst.Id(), machine)
} else if err == nil {
logger.Infof("started machine %s as instance %s with hardware %q, networks %v, interfaces %v", machine, inst.Id(), metadata, networks, ifaces)
return nil
}
// We need to stop the instance right away here, set error status and go on.
task.setErrorStatus("cannot register instance for machine %v: %v", machine, err)
if err := task.broker.StopInstances(inst.Id()); err != nil {
// We cannot even stop the instance, log the error and quit.
return errors.Annotatef(err, "cannot stop instance %q for machine %v", inst.Id(), machine)
}
return nil
}
// getControllerEnviron gets the bootstrap information required to destroy the
// environment by first checking the config store, then querying the API if
// the information is not in the store.
func (c *destroyCommandBase) getControllerEnviron(info configstore.EnvironInfo, sysAPI destroyControllerAPI) (_ environs.Environ, err error) {
bootstrapCfg := info.BootstrapConfig()
if bootstrapCfg == nil {
if sysAPI == nil {
return nil, errors.New("unable to get bootstrap information from API")
}
bootstrapCfg, err = sysAPI.EnvironmentConfig()
if params.IsCodeNotImplemented(err) {
// Fallback to the client API. Better to encapsulate the logic for
// old servers than worry about connecting twice.
client, err := c.getClientAPI()
if err != nil {
return nil, errors.Trace(err)
}
defer client.Close()
bootstrapCfg, err = client.EnvironmentGet()
if err != nil {
return nil, errors.Trace(err)
}
} else if err != nil {
return nil, errors.Trace(err)
}
}
cfg, err := config.New(config.NoDefaults, bootstrapCfg)
if err != nil {
return nil, errors.Trace(err)
}
return environs.New(cfg)
}
func (task *provisionerTask) startMachine(
machine *apiprovisioner.Machine,
provisioningInfo *params.ProvisioningInfo,
startInstanceParams environs.StartInstanceParams,
) error {
result, err := task.broker.StartInstance(startInstanceParams)
if err != nil {
// If this is a retryable error, we retry once
if instance.IsRetryableCreationError(errors.Cause(err)) {
logger.Infof("retryable error received on start instance - retrying instance creation")
result, err = task.broker.StartInstance(startInstanceParams)
if err != nil {
return task.setErrorStatus("cannot start instance for machine after a retry %q: %v", machine, err)
}
} else {
// Set the state to error, so the machine will be skipped next
// time until the error is resolved, but don't return an
// error; just keep going with the other machines.
return task.setErrorStatus("cannot start instance for machine %q: %v", machine, err)
}
}
inst := result.Instance
hardware := result.Hardware
nonce := startInstanceParams.InstanceConfig.MachineNonce
networks, ifaces, err := task.prepareNetworkAndInterfaces(result.NetworkInfo)
if err != nil {
return task.setErrorStatus("cannot prepare network for machine %q: %v", machine, err)
}
volumes := volumesToApiserver(result.Volumes)
volumeAttachments := volumeAttachmentsToApiserver(result.VolumeAttachments)
// TODO(dimitern) In a newer Provisioner API version, change
// SetInstanceInfo or add a new method that takes and saves in
// state all the information available on a network.InterfaceInfo
// for each interface, so we can later manage interfaces
// dynamically at run-time.
err = machine.SetInstanceInfo(inst.Id(), nonce, hardware, networks, ifaces, volumes, volumeAttachments)
if err != nil && params.IsCodeNotImplemented(err) {
return fmt.Errorf("cannot provision instance %v for machine %q with networks: not implemented", inst.Id(), machine)
} else if err == nil {
logger.Infof(
"started machine %s as instance %s with hardware %q, networks %v, interfaces %v, volumes %v, volume attachments %v, subnets to zones %v",
machine, inst.Id(), hardware,
networks, ifaces,
volumes, volumeAttachments,
startInstanceParams.SubnetsToZones,
)
return nil
}
// We need to stop the instance right away here, set error status and go on.
task.setErrorStatus("cannot register instance for machine %v: %v", machine, err)
if err := task.broker.StopInstances(inst.Id()); err != nil {
// We cannot even stop the instance, log the error and quit.
return errors.Annotatef(err, "cannot stop instance %q for machine %v", inst.Id(), machine)
}
return nil
}
// processDestroyError determines how to format error message based on its code.
// Note that CodeNotImplemented errors have not be propogated in previous implementation.
// This behaviour was preserved.
func processDestroyError(err error) error {
if err == nil || params.IsCodeNotImplemented(err) {
return nil
}
if params.IsCodeOperationBlocked(err) {
return err
}
return errors.Annotate(err, "destroying environment")
}
func machineLoop(context machineContext, m machine, changed <-chan struct{}) error {
// Use a short poll interval when initially waiting for
// a machine's address and machine agent to start, and a long one when it already
// has an address and the machine agent is started.
pollInterval := ShortPoll
pollInstance := true
for {
if pollInstance {
instInfo, err := pollInstanceInfo(context, m)
if err != nil && !params.IsCodeNotProvisioned(err) {
// If the provider doesn't implement Addresses/Status now,
// it never will until we're upgraded, so don't bother
// asking any more. We could use less resources
// by taking down the entire worker, but this is easier for now
// (and hopefully the local provider will implement
// Addresses/Status in the not-too-distant future),
// so we won't need to worry about this case at all.
if params.IsCodeNotImplemented(err) {
pollInterval = 365 * 24 * time.Hour
} else {
return err
}
}
machineStatus := params.StatusPending
if err == nil {
if statusInfo, err := m.Status(); err != nil {
logger.Warningf("cannot get current machine status for machine %v: %v", m.Id(), err)
} else {
machineStatus = statusInfo.Status
}
}
if len(instInfo.addresses) > 0 && instInfo.status != "" && machineStatus == params.StatusStarted {
// We've got at least one address and a status and instance is started, so poll infrequently.
pollInterval = LongPoll
} else if pollInterval < LongPoll {
// We have no addresses or not started - poll increasingly rarely
// until we do.
pollInterval = time.Duration(float64(pollInterval) * ShortPollBackoff)
}
pollInstance = false
}
select {
case <-time.After(pollInterval):
pollInstance = true
case <-context.dying():
return nil
case <-changed:
if err := m.Refresh(); err != nil {
return err
}
if m.Life() == params.Dead {
return nil
}
}
}
}
// pollInstanceInfo checks the current provider addresses and status
// for the given machine's instance, and sets them on the machine if they've changed.
func pollInstanceInfo(context machineContext, m machine) (instInfo instanceInfo, err error) {
instInfo = instanceInfo{}
instId, err := m.InstanceId()
// We can't ask the machine for its addresses if it isn't provisioned yet.
if params.IsCodeNotProvisioned(err) {
return instanceInfo{}, err
}
if err != nil {
return instanceInfo{}, errors.Annotate(err, "cannot get machine's instance id")
}
instInfo, err = context.instanceInfo(instId)
if err != nil {
// TODO (anastasiamac 2016-02-01) This does not look like it needs to be removed now.
if params.IsCodeNotImplemented(err) {
return instanceInfo{}, err
}
logger.Warningf("cannot get instance info for instance %q: %v", instId, err)
return instInfo, nil
}
if instStat, err := m.InstanceStatus(); err != nil {
// This should never occur since the machine is provisioned.
// But just in case, we reset polled status so we try again next time.
logger.Warningf("cannot get current instance status for machine %v: %v", m.Id(), err)
instInfo.status = instance.InstanceStatus{status.Unknown, ""}
} else {
// TODO(perrito666) add status validation.
currentInstStatus := instance.InstanceStatus{
Status: status.Status(instStat.Status),
Message: instStat.Info,
}
if instInfo.status != currentInstStatus {
logger.Infof("machine %q instance status changed from %q to %q", m.Id(), currentInstStatus, instInfo.status)
if err = m.SetInstanceStatus(instInfo.status.Status, instInfo.status.Message, nil); err != nil {
logger.Errorf("cannot set instance status on %q: %v", m, err)
return instanceInfo{}, err
}
}
}
if m.Life() != params.Dead {
providerAddresses, err := m.ProviderAddresses()
if err != nil {
return instanceInfo{}, err
}
if !addressesEqual(providerAddresses, instInfo.addresses) {
logger.Infof("machine %q has new addresses: %v", m.Id(), instInfo.addresses)
if err := m.SetProviderAddresses(instInfo.addresses...); err != nil {
logger.Errorf("cannot set addresses on %q: %v", m, err)
return instanceInfo{}, err
}
}
}
return instInfo, nil
}
// Run implements Command.Run
func (c *destroyCommand) Run(ctx *cmd.Context) error {
store, err := configstore.Default()
if err != nil {
return errors.Annotate(err, "cannot open system info storage")
}
cfgInfo, err := store.ReadInfo(c.systemName)
if err != nil {
return errors.Annotate(err, "cannot read system info")
}
// Verify that we're destroying a system
apiEndpoint := cfgInfo.APIEndpoint()
if apiEndpoint.ServerUUID != "" && apiEndpoint.EnvironUUID != apiEndpoint.ServerUUID {
return errors.Errorf("%q is not a system; use juju environment destroy to destroy it", c.systemName)
}
if !c.assumeYes {
if err = confirmDestruction(ctx, c.systemName); err != nil {
return err
}
}
// Attempt to connect to the API. If we can't, fail the destroy. Users will
// need to use the system kill command if we can't connect.
api, err := c.getSystemAPI()
if err != nil {
return c.ensureUserFriendlyErrorLog(errors.Annotate(err, "cannot connect to API"), ctx, nil)
}
defer api.Close()
// Obtain bootstrap / system environ information
systemEnviron, err := c.getSystemEnviron(cfgInfo, api)
if err != nil {
return errors.Annotate(err, "cannot obtain bootstrap information")
}
// Attempt to destroy the system.
err = api.DestroySystem(c.destroyEnvs, false)
if params.IsCodeNotImplemented(err) {
// Fall back to using the client endpoint to destroy the system,
// sending the info we were already able to collect.
return c.destroySystemViaClient(ctx, cfgInfo, systemEnviron, store)
}
if err != nil {
return c.ensureUserFriendlyErrorLog(errors.Annotate(err, "cannot destroy system"), ctx, api)
}
return environs.Destroy(systemEnviron, store)
}
// UnitStatusHistory retrieves the last <size> results of <kind:combined|agent|workload> status
// for <unitName> unit
func (c *Client) UnitStatusHistory(kind params.HistoryKind, unitName string, size int) (*UnitStatusHistory, error) {
var results UnitStatusHistory
args := params.StatusHistory{
Kind: kind,
Size: size,
Name: unitName,
}
err := c.facade.FacadeCall("UnitStatusHistory", args, &results)
if err != nil {
if params.IsCodeNotImplemented(err) {
return &UnitStatusHistory{}, errors.NotImplementedf("UnitStatusHistory")
}
return &UnitStatusHistory{}, errors.Trace(err)
}
return &results, nil
}
// Environment returns the environment entity.
func (st *State) Environment() (*Environment, error) {
var result params.EnvironmentResult
err := st.facade.FacadeCall("CurrentEnvironment", nil, &result)
if params.IsCodeNotImplemented(err) {
// Fall back to using the 1.16 API.
return st.environment1dot16()
}
if err != nil {
return nil, err
}
if err := result.Error; err != nil {
return nil, err
}
return &Environment{
name: result.Name,
uuid: result.UUID,
}, nil
}
// ServiceDeploy obtains the charm, either locally or from
// the charm store, and deploys it. It allows the specification of
// requested networks that must be present on the machines where the
// service is deployed. Another way to specify networks to include/exclude
// is using constraints. Placement directives, if provided, specify the
// machine on which the charm is deployed.
func (c *Client) ServiceDeploy(
charmURL string,
serviceName string,
series string,
numUnits int,
configYAML string,
cons constraints.Value,
toMachineSpec string,
placement []*instance.Placement,
networks []string,
storage map[string]storage.Constraints,
) error {
args := params.ServicesDeploy{
Services: []params.ServiceDeploy{{
ServiceName: serviceName,
Series: series,
CharmUrl: charmURL,
NumUnits: numUnits,
ConfigYAML: configYAML,
Constraints: cons,
ToMachineSpec: toMachineSpec,
Placement: placement,
Networks: networks,
Storage: storage,
}},
}
var results params.ErrorResults
var err error
if len(placement) > 0 {
err = c.FacadeCall("ServicesDeployWithPlacement", args, &results)
if err != nil {
if params.IsCodeNotImplemented(err) {
return errors.Errorf("unsupported --to parameter %q", toMachineSpec)
}
return err
}
} else {
err = c.FacadeCall("ServicesDeploy", args, &results)
}
if err != nil {
return err
}
return results.OneError()
}
// pollInstanceInfo checks the current provider addresses and status
// for the given machine's instance, and sets them on the machine if they've changed.
func pollInstanceInfo(context machineContext, m machine) (instInfo instanceInfo, err error) {
instInfo = instanceInfo{}
instId, err := m.InstanceId()
// We can't ask the machine for its addresses if it isn't provisioned yet.
if params.IsCodeNotProvisioned(err) {
return instInfo, err
}
if err != nil {
return instInfo, fmt.Errorf("cannot get machine's instance id: %v", err)
}
instInfo, err = context.instanceInfo(instId)
if err != nil {
if params.IsCodeNotImplemented(err) {
return instInfo, err
}
logger.Warningf("cannot get instance info for instance %q: %v", instId, err)
return instInfo, nil
}
currentInstStatus, err := m.InstanceStatus()
if err != nil {
// This should never occur since the machine is provisioned.
// But just in case, we reset polled status so we try again next time.
logger.Warningf("cannot get current instance status for machine %v: %v", m.Id(), err)
instInfo.status = ""
} else {
if instInfo.status != currentInstStatus {
logger.Infof("machine %q instance status changed from %q to %q", m.Id(), currentInstStatus, instInfo.status)
if err = m.SetInstanceStatus(instInfo.status); err != nil {
logger.Errorf("cannot set instance status on %q: %v", m, err)
}
}
}
providerAddresses, err := m.ProviderAddresses()
if err != nil {
return instInfo, err
}
if !addressesEqual(providerAddresses, instInfo.addresses) {
logger.Infof("machine %q has new addresses: %v", m.Id(), instInfo.addresses)
if err = m.SetProviderAddresses(instInfo.addresses...); err != nil {
logger.Errorf("cannot set addresses on %q: %v", m, err)
}
}
return instInfo, err
}
// MachineNetworkConfig returns information about network interfaces to
// setup only for a single machine.
func (st *state) MachineNetworkConfig(tag names.MachineTag) ([]network.InterfaceInfo, error) {
args := params.Entities{
Entities: []params.Entity{{Tag: tag.String()}},
}
var results params.MachineNetworkConfigResults
err := st.facade.FacadeCall("MachineNetworkConfig", args, &results)
if err != nil {
if params.IsCodeNotImplemented(err) {
// Fallback to former name.
err = st.facade.FacadeCall("MachineNetworkInfo", args, &results)
}
if err != nil {
// TODO: Not directly tested.
return nil, err
}
}
if len(results.Results) != 1 {
// TODO: Not directly tested
err = errors.Errorf("expected one result, got %d", len(results.Results))
return nil, err
}
result := results.Results[0]
if result.Error != nil {
return nil, result.Error
}
interfaceInfo := make([]network.InterfaceInfo, len(result.Config))
for i, ifaceInfo := range result.Config {
interfaceInfo[i].DeviceIndex = ifaceInfo.DeviceIndex
interfaceInfo[i].MACAddress = ifaceInfo.MACAddress
interfaceInfo[i].CIDR = ifaceInfo.CIDR
interfaceInfo[i].NetworkName = ifaceInfo.NetworkName
interfaceInfo[i].ProviderId = network.Id(ifaceInfo.ProviderId)
interfaceInfo[i].VLANTag = ifaceInfo.VLANTag
interfaceInfo[i].InterfaceName = ifaceInfo.InterfaceName
interfaceInfo[i].Disabled = ifaceInfo.Disabled
// TODO(dimitern) Once we store all the information from
// network.InterfaceInfo in state, change this as needed to
// return it.
}
return interfaceInfo, nil
}
// Run connects to the environment specified on the command line
// and calls AddServiceUnits for the given service.
func (c *addUnitCommand) Run(_ *cmd.Context) error {
apiclient, err := c.getAPI()
if err != nil {
return err
}
defer apiclient.Close()
conf, err := GetClientConfig(apiclient)
if err != nil {
return err
}
if err := c.CheckProvider(conf); err != nil {
return err
}
for i, p := range c.Placement {
if p.Scope == "env-uuid" {
p.Scope = apiclient.EnvironmentUUID()
}
c.Placement[i] = p
}
if len(c.Placement) > 0 {
_, err = apiclient.AddServiceUnitsWithPlacement(c.ServiceName, c.NumUnits, c.Placement)
if err == nil {
return nil
}
if !params.IsCodeNotImplemented(err) {
return block.ProcessBlockedError(err, block.BlockChange)
}
}
if c.PlacementSpec != "" && !IsMachineOrNewContainer(c.PlacementSpec) {
return errors.Errorf("unsupported --to parameter %q", c.PlacementSpec)
}
if c.PlacementSpec != "" && c.NumUnits > 1 {
return errors.New("this version of Juju does not support --num-units > 1 with --to")
}
_, err = apiclient.AddServiceUnits(c.ServiceName, c.NumUnits, c.PlacementSpec)
return block.ProcessBlockedError(err, block.BlockChange)
}
// RunPre obtains authorization to deploy this charm. The authorization, if received is not
// sent to the controller, rather it is kept as an attribute on RegisterMeteredCharm.
func (r *RegisterMeteredCharm) RunPre(state api.Connection, client *http.Client, deployInfo DeploymentInfo) error {
charmsClient := charms.NewClient(state)
defer charmsClient.Close()
metered, err := charmsClient.IsMetered(deployInfo.CharmURL.String())
if params.IsCodeNotImplemented(err) {
// The state server is too old to support metering. Warn
// the user, but don't return an error.
logger.Tracef("current state server version does not support charm metering")
return nil
} else if err != nil {
return err
}
if !metered {
return nil
}
bakeryClient := httpbakery.Client{Client: client, VisitWebPage: httpbakery.OpenWebBrowser}
if r.Plan == "" {
r.Plan, err = r.getDefaultPlan(client, deployInfo.CharmURL.String())
if err != nil {
if isNoDefaultPlanError(err) {
options, err1 := r.getCharmPlans(client, deployInfo.CharmURL.String())
if err1 != nil {
return err1
}
charmUrl := deployInfo.CharmURL.String()
return errors.Errorf(`%v has no default plan. Try "juju deploy --plan <plan-name> with one of %v"`, charmUrl, strings.Join(options, ", "))
}
return err
}
}
r.credentials, err = r.registerMetrics(deployInfo.EnvUUID, deployInfo.CharmURL.String(), deployInfo.ServiceName, &bakeryClient)
if err != nil {
logger.Infof("failed to obtain plan authorization: %v", err)
return err
}
return nil
}
// RunPre is part of the DeployStep interface.
func (a *AllocateBudget) RunPre(state api.Connection, client *http.Client, ctx *cmd.Context, deployInfo DeploymentInfo) error {
if deployInfo.CharmURL.Schema == "local" {
return nil
}
charmsClient := charms.NewClient(state)
metered, err := charmsClient.IsMetered(deployInfo.CharmURL.String())
if params.IsCodeNotImplemented(err) {
// The state server is too old to support metering. Warn
// the user, but don't return an error.
logger.Tracef("current state server version does not support charm metering")
return nil
} else if err != nil {
return errors.Annotate(err, "could not determine charm type")
}
if !metered {
return nil
}
allocBudget, allocLimit, err := parseBudgetWithLimit(a.AllocationSpec)
if err != nil {
return errors.Trace(err)
}
a.APIClient, err = getApiClient(client)
if err != nil {
return errors.Annotate(err, "could not create API client")
}
resp, err := a.APIClient.CreateAllocation(allocBudget, allocLimit, deployInfo.ModelUUID, []string{deployInfo.ServiceName})
if err != nil {
if wireformat.IsNotAvail(err) {
fmt.Fprintf(ctx.Stdout, "WARNING: Allocation not created - %s.\n", err.Error())
return nil
}
return errors.Annotate(err, "could not create budget allocation")
}
a.allocated = true
fmt.Fprintf(ctx.Stdout, "%s\n", resp)
return nil
}
// ServiceStatus returns the status of the service if the passed unitName,
// corresponding to the calling unit, is of the leader.
func (s *Service) Status(unitName string) (params.ServiceStatusResult, error) {
tag := names.NewUnitTag(unitName)
var results params.ServiceStatusResults
args := params.Entities{
Entities: []params.Entity{
{
Tag: tag.String(),
},
},
}
err := s.st.facade.FacadeCall("ServiceStatus", args, &results)
if err != nil {
if params.IsCodeNotImplemented(err) {
return params.ServiceStatusResult{}, errors.NotImplementedf("ServiceStatus")
}
return params.ServiceStatusResult{}, errors.Trace(err)
}
result := results.Results[0]
if result.Error != nil {
return params.ServiceStatusResult{}, result.Error
}
return result, nil
}
// UnitStatus gets the status details of the unit.
func (u *Unit) UnitStatus() (params.StatusResult, error) {
var results params.StatusResults
args := params.Entities{
Entities: []params.Entity{
{Tag: u.tag.String()},
},
}
err := u.st.facade.FacadeCall("UnitStatus", args, &results)
if err != nil {
if params.IsCodeNotImplemented(err) {
return params.StatusResult{}, errors.NotImplementedf("UnitStatus")
}
return params.StatusResult{}, errors.Trace(err)
}
if len(results.Results) != 1 {
panic(errors.Errorf("expected 1 result, got %d", len(results.Results)))
}
result := results.Results[0]
if result.Error != nil {
return params.StatusResult{}, result.Error
}
return result, nil
}
// RunPost sends credentials obtained during the call to RunPre to the controller.
func (r *RegisterMeteredCharm) RunPost(state api.Connection, client *http.Client, deployInfo DeploymentInfo) error {
if r.credentials == nil {
return nil
}
api, cerr := getMetricCredentialsAPI(state)
if cerr != nil {
logger.Infof("failed to get the metrics credentials setter: %v", cerr)
return cerr
}
defer api.Close()
err := api.SetMetricCredentials(deployInfo.ServiceName, r.credentials)
if params.IsCodeNotImplemented(err) {
// The state server is too old to support metering. Warn
// the user, but don't return an error.
logger.Warningf("current state server version does not support charm metering")
return nil
} else if err != nil {
logger.Infof("failed to set metric credentials: %v", err)
return err
}
return nil
}
// ProvisioningInfo is new in 1.20; wait for the API server to be
// upgraded so we don't spew errors on upgrade.
func (task *provisionerTask) blockUntilProvisioned(
provision func() (*params.ProvisioningInfo, error),
) (*params.ProvisioningInfo, error) {
var pInfo *params.ProvisioningInfo
var err error
for {
if pInfo, err = provision(); err == nil {
break
}
if params.IsCodeNotImplemented(err) {
logger.Infof("waiting for state server to be upgraded")
select {
case <-task.tomb.Dying():
return nil, tomb.ErrDying
case <-time.After(15 * time.Second):
continue
}
}
return nil, err
}
return pInfo, nil
}
func (c *DeployCommand) Run(ctx *cmd.Context) error {
client, err := c.NewAPIClient()
if err != nil {
return err
}
defer client.Close()
conf, err := service.GetClientConfig(client)
if err != nil {
return err
}
if err := c.CheckProvider(conf); err != nil {
return err
}
csClient, err := newCharmStoreClient()
if err != nil {
return errors.Trace(err)
}
defer csClient.jar.Save()
curl, repo, err := resolveCharmURL(c.CharmName, csClient.params, ctx.AbsPath(c.RepoPath), conf)
if err != nil {
return errors.Trace(err)
}
curl, err = addCharmViaAPI(client, ctx, curl, repo, csClient)
if err != nil {
return block.ProcessBlockedError(err, block.BlockChange)
}
if c.BumpRevision {
ctx.Infof("--upgrade (or -u) is deprecated and ignored; charms are always deployed with a unique revision.")
}
charmInfo, err := client.CharmInfo(curl.String())
if err != nil {
return err
}
numUnits := c.NumUnits
if charmInfo.Meta.Subordinate {
if !constraints.IsEmpty(&c.Constraints) {
return errors.New("cannot use --constraints with subordinate service")
}
if numUnits == 1 && c.PlacementSpec == "" {
numUnits = 0
} else {
return errors.New("cannot use --num-units or --to with subordinate service")
}
}
serviceName := c.ServiceName
if serviceName == "" {
serviceName = charmInfo.Meta.Name
}
var configYAML []byte
if c.Config.Path != "" {
configYAML, err = c.Config.Read(ctx)
if err != nil {
return err
}
}
// If storage or placement is specified, we attempt to use a new API on the service facade.
if len(c.Storage) > 0 || len(c.Placement) > 0 {
notSupported := errors.New("cannot deploy charms with storage or placement: not supported by the API server")
serviceClient, err := c.newServiceAPIClient()
if err != nil {
return notSupported
}
defer serviceClient.Close()
for i, p := range c.Placement {
if p.Scope == "env-uuid" {
p.Scope = serviceClient.EnvironmentUUID()
}
c.Placement[i] = p
}
err = serviceClient.ServiceDeploy(
curl.String(),
serviceName,
numUnits,
string(configYAML),
c.Constraints,
c.PlacementSpec,
c.Placement,
[]string{},
c.Storage,
)
if params.IsCodeNotImplemented(err) {
return notSupported
}
return block.ProcessBlockedError(err, block.BlockChange)
}
if len(c.Networks) > 0 {
ctx.Infof("use of --networks is deprecated and is ignored. Please use spaces to manage placement within networks")
}
err = client.ServiceDeploy(
curl.String(),
serviceName,
numUnits,
string(configYAML),
c.Constraints,
c.PlacementSpec)
if err != nil {
return block.ProcessBlockedError(err, block.BlockChange)
}
state, err := c.NewAPIRoot()
if err != nil {
return err
}
err = registerMeteredCharm(c.RegisterURL, state, csClient.jar, curl.String(), serviceName, client.EnvironmentUUID())
if params.IsCodeNotImplemented(err) {
// The state server is too old to support metering. Warn
// the user, but don't return an error.
logger.Warningf("current state server version does not support charm metering")
return nil
}
return block.ProcessBlockedError(err, block.BlockChange)
}
func (c *DeployCommand) Run(ctx *cmd.Context) error {
client, err := c.NewAPIClient()
if err != nil {
return err
}
defer client.Close()
conf, err := service.GetClientConfig(client)
if err != nil {
return err
}
if err := c.CheckProvider(conf); err != nil {
return err
}
csClient, err := newCharmStoreClient()
if err != nil {
return errors.Trace(err)
}
defer csClient.jar.Save()
curl, repo, err := resolveCharmURL(c.CharmName, csClient.params, ctx.AbsPath(c.RepoPath), conf)
if err != nil {
return errors.Trace(err)
}
curl, err = addCharmViaAPI(client, ctx, curl, repo, csClient)
if err != nil {
return block.ProcessBlockedError(err, block.BlockChange)
}
if c.BumpRevision {
ctx.Infof("--upgrade (or -u) is deprecated and ignored; charms are always deployed with a unique revision.")
}
requestedNetworks, err := networkNamesToTags(parseNetworks(c.Networks))
if err != nil {
return err
}
// We need to ensure network names are valid below, but we don't need them here.
_, err = networkNamesToTags(c.Constraints.IncludeNetworks())
if err != nil {
return err
}
_, err = networkNamesToTags(c.Constraints.ExcludeNetworks())
if err != nil {
return err
}
haveNetworks := len(requestedNetworks) > 0 || c.Constraints.HaveNetworks()
charmInfo, err := client.CharmInfo(curl.String())
if err != nil {
return err
}
numUnits := c.NumUnits
if charmInfo.Meta.Subordinate {
if !constraints.IsEmpty(&c.Constraints) {
return errors.New("cannot use --constraints with subordinate service")
}
if numUnits == 1 && c.ToMachineSpec == "" {
numUnits = 0
} else {
return errors.New("cannot use --num-units or --to with subordinate service")
}
}
serviceName := c.ServiceName
if serviceName == "" {
serviceName = charmInfo.Meta.Name
}
var configYAML []byte
if c.Config.Path != "" {
configYAML, err = c.Config.Read(ctx)
if err != nil {
return err
}
}
// If storage is specified, we attempt to use a new API on the service facade.
if len(c.Storage) > 0 {
notSupported := errors.New("cannot deploy charms with storage: not supported by the API server")
serviceClient, err := c.newServiceAPIClient()
if err != nil {
return notSupported
}
defer serviceClient.Close()
err = serviceClient.ServiceDeploy(
curl.String(),
serviceName,
numUnits,
string(configYAML),
c.Constraints,
c.ToMachineSpec,
requestedNetworks,
c.Storage,
)
if params.IsCodeNotImplemented(err) {
return notSupported
}
return block.ProcessBlockedError(err, block.BlockChange)
}
err = client.ServiceDeployWithNetworks(
curl.String(),
serviceName,
numUnits,
string(configYAML),
c.Constraints,
c.ToMachineSpec,
requestedNetworks,
)
if params.IsCodeNotImplemented(err) {
if haveNetworks {
return errors.New("cannot use --networks/--constraints networks=...: not supported by the API server")
}
err = client.ServiceDeploy(
curl.String(),
serviceName,
numUnits,
string(configYAML),
c.Constraints,
c.ToMachineSpec)
}
if err != nil {
return block.ProcessBlockedError(err, block.BlockChange)
}
state, err := c.NewAPIRoot()
if err != nil {
return err
}
err = registerMeteredCharm(c.RegisterURL, state, csClient.jar, curl.String(), serviceName, client.EnvironmentUUID())
if err != nil {
return err
}
return block.ProcessBlockedError(err, block.BlockChange)
}
// Run implements Command.Run
func (c *killCommand) Run(ctx *cmd.Context) error {
if c.apiDialerFunc == nil {
c.apiDialerFunc = c.NewAPIRoot
}
store, err := configstore.Default()
if err != nil {
return errors.Annotate(err, "cannot open system info storage")
}
cfgInfo, err := store.ReadInfo(c.systemName)
if err != nil {
return errors.Annotate(err, "cannot read system info")
}
// Verify that we're destroying a system
apiEndpoint := cfgInfo.APIEndpoint()
if apiEndpoint.ServerUUID != "" && apiEndpoint.EnvironUUID != apiEndpoint.ServerUUID {
return errors.Errorf("%q is not a system; use juju environment destroy to destroy it", c.systemName)
}
if !c.assumeYes {
if err = confirmDestruction(ctx, c.systemName); err != nil {
return err
}
}
// Attempt to connect to the API.
api, err := c.getSystemAPI(cfgInfo)
switch {
case err == nil:
defer api.Close()
case errors.Cause(err) == common.ErrPerm:
return errors.Annotate(err, "cannot destroy system")
default:
if err != ErrConnTimedOut {
logger.Debugf("unable to open api: %s", err)
}
ctx.Infof("Unable to open API: %s\n", err)
api = nil
}
// Obtain bootstrap / system environ information
systemEnviron, err := c.getSystemEnviron(cfgInfo, api)
if err != nil {
return errors.Annotate(err, "cannot obtain bootstrap information")
}
// If we were unable to connect to the API, just destroy the system through
// the environs interface.
if api == nil {
return environs.Destroy(systemEnviron, store)
}
// Attempt to destroy the system with destroyEnvs and ignoreBlocks = true
err = api.DestroySystem(true, true)
if params.IsCodeNotImplemented(err) {
// Fall back to using the client endpoint to destroy the system,
// sending the info we were already able to collect.
return c.killSystemViaClient(ctx, cfgInfo, systemEnviron, store)
}
if err != nil {
ctx.Infof("Unable to destroy system through the API: %s. Destroying through provider.", err)
}
return environs.Destroy(systemEnviron, store)
}
func (c *addCommand) Run(ctx *cmd.Context) error {
client, err := c.getClientAPI()
if err != nil {
return errors.Trace(err)
}
defer client.Close()
var machineManager MachineManagerAPI
if len(c.Disks) > 0 {
machineManager, err = c.getMachineManagerAPI()
if err != nil {
return errors.Trace(err)
}
defer machineManager.Close()
if machineManager.BestAPIVersion() < 1 {
return errors.New("cannot add machines with disks: not supported by the API server")
}
}
logger.Infof("load config")
var config *config.Config
if defaultStore, err := configstore.Default(); err != nil {
return err
} else if config, err = c.Config(defaultStore, client); err != nil {
return err
}
if c.Placement != nil && c.Placement.Scope == "ssh" {
logger.Infof("manual provisioning")
args := manual.ProvisionMachineArgs{
Host: c.Placement.Directive,
Client: client,
Stdin: ctx.Stdin,
Stdout: ctx.Stdout,
Stderr: ctx.Stderr,
UpdateBehavior: ¶ms.UpdateBehavior{
config.EnableOSRefreshUpdate(),
config.EnableOSUpgrade(),
},
}
machineId, err := manualProvisioner(args)
if err == nil {
ctx.Infof("created machine %v", machineId)
}
return err
}
logger.Infof("environment provisioning")
if c.Placement != nil && c.Placement.Scope == "env-uuid" {
c.Placement.Scope = client.EnvironmentUUID()
}
if c.Placement != nil && c.Placement.Scope == instance.MachineScope {
// It does not make sense to add-machine <id>.
return fmt.Errorf("machine-id cannot be specified when adding machines")
}
jobs := []multiwatcher.MachineJob{multiwatcher.JobHostUnits}
envVersion, err := envcmd.GetEnvironmentVersion(client)
if err != nil {
return err
}
// Servers before 1.21-alpha2 don't have the networker so don't
// try to use JobManageNetworking with them.
//
// In case of MAAS and Joyent JobManageNetworking is not added
// to ensure the non-intrusive start of a networker like above
// for the manual provisioning. See this related joyent bug
// http://pad.lv/1401423
if envVersion.Compare(version.MustParse("1.21-alpha2")) >= 0 &&
config.Type() != provider.MAAS &&
config.Type() != provider.Joyent {
jobs = append(jobs, multiwatcher.JobManageNetworking)
}
machineParams := params.AddMachineParams{
Placement: c.Placement,
Series: c.Series,
Constraints: c.Constraints,
Jobs: jobs,
Disks: c.Disks,
}
machines := make([]params.AddMachineParams, c.NumMachines)
for i := 0; i < c.NumMachines; i++ {
machines[i] = machineParams
}
var results []params.AddMachinesResult
// If storage is specified, we attempt to use a new API on the service facade.
if len(c.Disks) > 0 {
results, err = machineManager.AddMachines(machines)
} else {
results, err = client.AddMachines(machines)
if params.IsCodeNotImplemented(err) {
if c.Placement != nil {
containerType, parseErr := instance.ParseContainerType(c.Placement.Scope)
if parseErr != nil {
// The user specified a non-container placement directive:
// return original API not implemented error.
return err
}
machineParams.ContainerType = containerType
machineParams.ParentId = c.Placement.Directive
machineParams.Placement = nil
}
logger.Infof(
"AddMachinesWithPlacement not supported by the API server, " +
"falling back to 1.18 compatibility mode",
)
results, err = client.AddMachines1dot18([]params.AddMachineParams{machineParams})
}
}
if params.IsCodeOperationBlocked(err) {
return block.ProcessBlockedError(err, block.BlockChange)
}
if err != nil {
return errors.Trace(err)
}
errs := []error{}
for _, machineInfo := range results {
if machineInfo.Error != nil {
errs = append(errs, machineInfo.Error)
continue
}
machineId := machineInfo.Machine
if names.IsContainerMachine(machineId) {
ctx.Infof("created container %v", machineId)
} else {
ctx.Infof("created machine %v", machineId)
}
}
if len(errs) == 1 {
fmt.Fprintf(ctx.Stderr, "failed to create 1 machine\n")
return errs[0]
}
if len(errs) > 1 {
fmt.Fprintf(ctx.Stderr, "failed to create %d machines\n", len(errs))
returnErr := []string{}
for _, e := range errs {
returnErr = append(returnErr, e.Error())
}
return errors.New(strings.Join(returnErr, ", "))
}
return nil
}