// Run implements Command.Run
func (c *listControllersCommand) Run(ctx *cmd.Context) error {
controllers, err := c.store.AllControllers()
if err != nil {
return errors.Annotate(err, "failed to list controllers")
}
details, errs := c.convertControllerDetails(controllers)
if len(errs) > 0 {
fmt.Fprintln(ctx.Stderr, strings.Join(errs, "\n"))
}
currentController, err := modelcmd.ReadCurrentController()
if err != nil {
return errors.Annotate(err, "getting current controller")
}
if _, ok := controllers[currentController]; !ok {
// TODO(axw) move handling of current-controller to
// the jujuclient code, and make sure the file is
// kept in-sync with the controllers.yaml file.
currentController = ""
}
controllerSet := ControllerSet{
Controllers: details,
CurrentController: currentController,
}
return c.out.Write(ctx, controllerSet)
}
func (s *BootstrapSuite) TestBootstrapErrorRestoresOldMetadata(c *gc.C) {
s.patchVersionAndSeries(c, "raring")
s.PatchValue(&environsPrepare, func(
environs.BootstrapContext,
jujuclient.ClientStore,
environs.PrepareParams,
) (environs.Environ, error) {
s.writeControllerModelAccountInfo(c, "foo", "bar", "foobar@local")
return nil, fmt.Errorf("mock-prepare")
})
s.writeControllerModelAccountInfo(c, "local.olddevcontroller", "fredmodel", "fred@local")
_, err := coretesting.RunCommand(c, s.newBootstrapCommand(), "devcontroller", "dummy", "--auto-upgrade")
c.Assert(err, gc.ErrorMatches, "mock-prepare")
oldCurrentController, err := modelcmd.ReadCurrentController()
c.Assert(err, jc.ErrorIsNil)
c.Assert(oldCurrentController, gc.Equals, bootstrappedControllerName("olddevcontroller"))
oldCurrentAccount, err := s.store.CurrentAccount(oldCurrentController)
c.Assert(err, jc.ErrorIsNil)
c.Assert(oldCurrentAccount, gc.Equals, "fred@local")
oldCurrentModel, err := s.store.CurrentModel(oldCurrentController, oldCurrentAccount)
c.Assert(err, jc.ErrorIsNil)
c.Assert(oldCurrentModel, gc.Equals, "fredmodel")
}
func (s *LoginSuite) TestWritesCurrentController(c *gc.C) {
_, err := s.runServerFile(c)
c.Assert(err, jc.ErrorIsNil)
currentController, err := modelcmd.ReadCurrentController()
c.Assert(err, jc.ErrorIsNil)
c.Assert(currentController, gc.Equals, "foo")
}
// Run implements Command.Run
func (c *showControllerCommand) Run(ctx *cmd.Context) error {
controllerNames := c.controllerNames
if len(controllerNames) == 0 {
currentController, err := modelcmd.ReadCurrentController()
if err != nil {
return errors.Trace(err)
}
if currentController == "" {
return errors.New("there is no active controller")
}
controllerNames = []string{currentController}
}
controllers := make(map[string]ShowControllerDetails)
for _, name := range controllerNames {
actualName, err := modelcmd.ResolveControllerName(c.store, name)
if err != nil {
return err
}
one, err := c.store.ControllerByName(actualName)
if err != nil {
return err
}
controllers[name] = c.convertControllerForShow(actualName, one)
}
return c.out.Write(ctx, controllers)
}
func (s *SwitchSimpleSuite) TestSettingWritesControllerFile(c *gc.C) {
s.addTestController(c)
context, err := testing.RunCommand(c, newSwitchCommand(), "a-controller")
c.Assert(err, jc.ErrorIsNil)
c.Assert(testing.Stderr(context), gc.Equals, "-> a-controller (controller)\n")
currController, err := modelcmd.ReadCurrentController()
c.Assert(err, jc.ErrorIsNil)
c.Assert(currController, gc.Equals, "a-controller")
}
func (s *BootstrapSuite) TestBootstrapSetsCurrentModel(c *gc.C) {
s.patchVersionAndSeries(c, "raring")
_, err := coretesting.RunCommand(c, s.newBootstrapCommand(), "devcontroller", "dummy", "--auto-upgrade")
c.Assert(err, jc.ErrorIsNil)
currentController, err := modelcmd.ReadCurrentController()
c.Assert(err, jc.ErrorIsNil)
c.Assert(currentController, gc.Equals, bootstrappedControllerName("devcontroller"))
modelName, err := s.store.CurrentModel(currentController, "admin@local")
c.Assert(err, jc.ErrorIsNil)
c.Assert(modelName, gc.Equals, "default")
}
func (s *BootstrapSuite) TestBootstrapAlreadyExists(c *gc.C) {
const controllerName = "devcontroller"
expectedBootstrappedName := bootstrappedControllerName(controllerName)
s.patchVersionAndSeries(c, "raring")
s.writeControllerModelAccountInfo(c, "local.devcontroller", "fredmodel", "fred@local")
ctx := coretesting.Context(c)
_, errc := cmdtesting.RunCommand(ctx, s.newBootstrapCommand(), controllerName, "dummy", "--auto-upgrade")
err := <-errc
c.Assert(err, jc.Satisfies, errors.IsAlreadyExists)
c.Assert(err, gc.ErrorMatches, fmt.Sprintf(`controller %q already exists`, expectedBootstrappedName))
currentController, err := modelcmd.ReadCurrentController()
c.Assert(err, jc.ErrorIsNil)
c.Assert(currentController, gc.Equals, "local.devcontroller")
currentAccount, err := s.store.CurrentAccount(currentController)
c.Assert(err, jc.ErrorIsNil)
c.Assert(currentAccount, gc.Equals, "fred@local")
currentModel, err := s.store.CurrentModel(currentController, currentAccount)
c.Assert(err, jc.ErrorIsNil)
c.Assert(currentModel, gc.Equals, "fredmodel")
}
// Run connects to the environment specified on the command line and bootstraps
// a juju in that environment if none already exists. If there is as yet no environments.yaml file,
// the user is informed how to create one.
func (c *bootstrapCommand) Run(ctx *cmd.Context) (resultErr error) {
bootstrapFuncs := getBootstrapFuncs()
// Get the cloud definition identified by c.Cloud. If c.Cloud does not
// identify a cloud in clouds.yaml, but is the name of a provider, and
// that provider implements environs.CloudRegionDetector, we'll
// synthesise a Cloud structure with the detected regions and no auth-
// types.
cloud, err := jujucloud.CloudByName(c.Cloud)
if errors.IsNotFound(err) {
ctx.Verbosef("cloud %q not found, trying as a provider name", c.Cloud)
provider, err := environs.Provider(c.Cloud)
if errors.IsNotFound(err) {
return errors.NewNotFound(nil, fmt.Sprintf("unknown cloud %q, please try %q", c.Cloud, "juju update-clouds"))
} else if err != nil {
return errors.Trace(err)
}
detector, ok := provider.(environs.CloudRegionDetector)
if !ok {
ctx.Verbosef(
"provider %q does not support detecting regions",
c.Cloud,
)
return errors.NewNotFound(nil, fmt.Sprintf("unknown cloud %q, please try %q", c.Cloud, "juju update-clouds"))
}
regions, err := detector.DetectRegions()
if err != nil && !errors.IsNotFound(err) {
// It's not an error to have no regions.
return errors.Annotatef(err,
"detecting regions for %q cloud provider",
c.Cloud,
)
}
cloud = &jujucloud.Cloud{
Type: c.Cloud,
Regions: regions,
}
} else if err != nil {
return errors.Trace(err)
}
if err := checkProviderType(cloud.Type); errors.IsNotFound(err) {
// This error will get handled later.
} else if err != nil {
return errors.Trace(err)
}
// Get the credentials and region name.
store := c.ClientStore()
credential, credentialName, regionName, err := modelcmd.GetCredentials(
store, c.Region, c.CredentialName, c.Cloud, cloud.Type,
)
if errors.IsNotFound(err) && c.CredentialName == "" {
// No credential was explicitly specified, and no credential
// was found in credentials.yaml; have the provider detect
// credentials from the environment.
ctx.Verbosef("no credentials found, checking environment")
detected, err := modelcmd.DetectCredential(c.Cloud, cloud.Type)
if errors.Cause(err) == modelcmd.ErrMultipleCredentials {
return ambiguousCredentialError
} else if err != nil {
return errors.Trace(err)
}
// We have one credential so extract it from the map.
var oneCredential jujucloud.Credential
for _, oneCredential = range detected.AuthCredentials {
}
credential = &oneCredential
regionName = c.Region
if regionName == "" {
regionName = detected.DefaultRegion
}
logger.Tracef("authenticating with region %q and %v", regionName, credential)
} else if err != nil {
return errors.Trace(err)
}
region, err := getRegion(cloud, c.Cloud, regionName)
if err != nil {
return errors.Trace(err)
}
hostedModelUUID, err := utils.NewUUID()
if err != nil {
return errors.Trace(err)
}
controllerUUID, err := utils.NewUUID()
if err != nil {
return errors.Trace(err)
}
// Create an environment config from the cloud and credentials.
configAttrs := map[string]interface{}{
"type": cloud.Type,
"name": environs.ControllerModelName,
config.UUIDKey: controllerUUID.String(),
config.ControllerUUIDKey: controllerUUID.String(),
}
userConfigAttrs, err := c.config.ReadAttrs(ctx)
if err != nil {
return errors.Trace(err)
}
for k, v := range userConfigAttrs {
configAttrs[k] = v
}
logger.Debugf("preparing controller with config: %v", configAttrs)
// Read existing current controller, account, model so we can clean up on error.
var oldCurrentController string
oldCurrentController, err = modelcmd.ReadCurrentController()
if err != nil {
return errors.Annotate(err, "error reading current controller")
}
defer func() {
if resultErr == nil || errors.IsAlreadyExists(resultErr) {
return
}
if oldCurrentController != "" {
if err := modelcmd.WriteCurrentController(oldCurrentController); err != nil {
logger.Warningf(
"cannot reset current controller to %q: %v",
oldCurrentController, err,
)
}
}
if err := store.RemoveController(c.controllerName); err != nil {
logger.Warningf(
"cannot destroy newly created controller %q details: %v",
c.controllerName, err,
)
}
}()
environ, err := environsPrepare(
modelcmd.BootstrapContext(ctx), store,
environs.PrepareParams{
BaseConfig: configAttrs,
ControllerName: c.controllerName,
CloudName: c.Cloud,
CloudRegion: region.Name,
CloudEndpoint: region.Endpoint,
CloudStorageEndpoint: region.StorageEndpoint,
Credential: *credential,
CredentialName: credentialName,
},
)
if err != nil {
return errors.Trace(err)
}
// Set the current model to the initial hosted model.
accountName, err := store.CurrentAccount(c.controllerName)
if err != nil {
return errors.Trace(err)
}
if err := store.UpdateModel(c.controllerName, accountName, c.hostedModelName, jujuclient.ModelDetails{
hostedModelUUID.String(),
}); err != nil {
return errors.Trace(err)
}
if err := store.SetCurrentModel(c.controllerName, accountName, c.hostedModelName); err != nil {
return errors.Trace(err)
}
// Set the current controller so "juju status" can be run while
// bootstrapping is underway.
if err := modelcmd.WriteCurrentController(c.controllerName); err != nil {
return errors.Trace(err)
}
cloudRegion := c.Cloud
if region.Name != "" {
cloudRegion = fmt.Sprintf("%s/%s", cloudRegion, region.Name)
}
ctx.Infof(
"Creating Juju controller %q on %s",
c.controllerName, cloudRegion,
)
// If we error out for any reason, clean up the environment.
defer func() {
if resultErr != nil {
if c.KeepBrokenEnvironment {
logger.Warningf(`
bootstrap failed but --keep-broken was specified so model is not being destroyed.
When you are finished diagnosing the problem, remember to run juju destroy-model --force
to clean up the model.`[1:])
} else {
handleBootstrapError(ctx, resultErr, func() error {
return environsDestroy(
c.controllerName, environ, store,
)
})
}
}
}()
// Block interruption during bootstrap. Providers may also
// register for interrupt notification so they can exit early.
interrupted := make(chan os.Signal, 1)
defer close(interrupted)
ctx.InterruptNotify(interrupted)
defer ctx.StopInterruptNotify(interrupted)
go func() {
for _ = range interrupted {
ctx.Infof("Interrupt signalled: waiting for bootstrap to exit")
}
}()
// If --metadata-source is specified, override the default tools metadata source so
// SyncTools can use it, and also upload any image metadata.
var metadataDir string
if c.MetadataSource != "" {
metadataDir = ctx.AbsPath(c.MetadataSource)
}
// Merge environ and bootstrap-specific constraints.
constraintsValidator, err := environ.ConstraintsValidator()
if err != nil {
return errors.Trace(err)
}
bootstrapConstraints, err := constraintsValidator.Merge(
c.Constraints, c.BootstrapConstraints,
)
if err != nil {
return errors.Trace(err)
}
logger.Infof("combined bootstrap constraints: %v", bootstrapConstraints)
hostedModelConfig := map[string]interface{}{
"name": c.hostedModelName,
config.UUIDKey: hostedModelUUID.String(),
}
// We copy across any user supplied attributes to the hosted model config.
// But only if the attributes have not been removed from the controller
// model config as part of preparing the controller model.
controllerConfigAttrs := environ.Config().AllAttrs()
for k, v := range userConfigAttrs {
if _, ok := controllerConfigAttrs[k]; ok {
hostedModelConfig[k] = v
}
}
// Ensure that certain config attributes are not included in the hosted
// model config. These attributes may be modified during bootstrap; by
// removing them from this map, we ensure the modified values are
// inherited.
delete(hostedModelConfig, config.AuthKeysConfig)
delete(hostedModelConfig, config.AgentVersionKey)
// Check whether the Juju GUI must be installed in the controller.
// Leaving this value empty means no GUI will be installed.
var guiDataSourceBaseURL string
if !c.noGUI {
guiDataSourceBaseURL = common.GUIDataSourceBaseURL()
}
err = bootstrapFuncs.Bootstrap(modelcmd.BootstrapContext(ctx), environ, bootstrap.BootstrapParams{
ModelConstraints: c.Constraints,
BootstrapConstraints: bootstrapConstraints,
BootstrapSeries: c.BootstrapSeries,
BootstrapImage: c.BootstrapImage,
Placement: c.Placement,
UploadTools: c.UploadTools,
AgentVersion: c.AgentVersion,
MetadataDir: metadataDir,
HostedModelConfig: hostedModelConfig,
GUIDataSourceBaseURL: guiDataSourceBaseURL,
})
if err != nil {
return errors.Annotate(err, "failed to bootstrap model")
}
if err := c.SetModelName(c.hostedModelName); err != nil {
return errors.Trace(err)
}
err = c.setBootstrapEndpointAddress(environ)
if err != nil {
return errors.Annotate(err, "saving bootstrap endpoint address")
}
// To avoid race conditions when running scripted bootstraps, wait
// for the controller's machine agent to be ready to accept commands
// before exiting this bootstrap command.
return c.waitForAgentInitialisation(ctx)
}
func (s *filesSuite) assertCurrentController(c *gc.C, controllerName string) {
current, err := modelcmd.ReadCurrentController()
c.Assert(err, jc.ErrorIsNil)
c.Assert(current, gc.Equals, controllerName)
}