Esempio n. 1
0
func (s *ModelConfigSourceSuite) TestModelConfigDefaults(c *gc.C) {
	expectedValues := make(config.ModelDefaultAttributes)
	for attr, val := range config.ConfigDefaults() {
		expectedValues[attr] = config.AttributeDefaultValues{
			Default: val,
		}
	}
	ds := expectedValues["http-proxy"]
	ds.Controller = "http://proxy"
	expectedValues["http-proxy"] = ds

	ds = expectedValues["apt-mirror"]
	ds.Controller = "http://mirror"
	ds.Regions = []config.RegionDefaultValue{{
		Name:  "dummy-region",
		Value: "http://dummy-mirror",
	}}
	expectedValues["apt-mirror"] = ds

	ds = expectedValues["no-proxy"]
	ds.Regions = []config.RegionDefaultValue{{
		Name:  "dummy-region",
		Value: "dummy-proxy"}}
	expectedValues["no-proxy"] = ds

	sources, err := s.State.ModelConfigDefaultValues()
	c.Assert(err, jc.ErrorIsNil)
	c.Assert(sources, jc.DeepEquals, expectedValues)
}
Esempio n. 2
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func (s *ModelConfigSourceSuite) assertModelConfigValues(c *gc.C, modelCfg *config.Config, modelAttributes, controllerAttributes set.Strings) {
	expectedValues := make(config.ConfigValues)
	defaultAttributes := set.NewStrings()
	for defaultAttr := range config.ConfigDefaults() {
		defaultAttributes.Add(defaultAttr)
	}
	for attr, val := range modelCfg.AllAttrs() {
		source := "model"
		if defaultAttributes.Contains(attr) {
			source = "default"
		}
		if modelAttributes.Contains(attr) {
			source = "model"
		}
		if controllerAttributes.Contains(attr) {
			source = "controller"
		}
		expectedValues[attr] = config.ConfigValue{
			Value:  val,
			Source: source,
		}
	}
	sources, err := s.State.ModelConfigValues()
	c.Assert(err, jc.ErrorIsNil)
	c.Assert(sources, jc.DeepEquals, expectedValues)
}
Esempio n. 3
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func (s *InitializeSuite) TestInitializeWithControllerInheritedConfig(c *gc.C) {
	cfg := testing.ModelConfig(c)
	uuid := cfg.UUID()
	initial := cfg.AllAttrs()
	controllerInheritedConfigIn := map[string]interface{}{
		"default-series": initial["default-series"],
	}
	owner := names.NewLocalUserTag("initialize-admin")
	controllerCfg := testing.FakeControllerConfig()

	st, err := state.Initialize(state.InitializeParams{
		Clock:            clock.WallClock,
		ControllerConfig: controllerCfg,
		ControllerModelArgs: state.ModelArgs{
			CloudName:               "dummy",
			Owner:                   owner,
			Config:                  cfg,
			StorageProviderRegistry: storage.StaticProviderRegistry{},
		},
		CloudName: "dummy",
		Cloud: cloud.Cloud{
			Type:      "dummy",
			AuthTypes: []cloud.AuthType{cloud.EmptyAuthType},
		},
		ControllerInheritedConfig: controllerInheritedConfigIn,
		MongoInfo:                 statetesting.NewMongoInfo(),
		MongoDialOpts:             mongotest.DialOpts(),
	})
	c.Assert(err, jc.ErrorIsNil)
	c.Assert(st, gc.NotNil)
	modelTag := st.ModelTag()
	c.Assert(modelTag.Id(), gc.Equals, uuid)
	err = st.Close()
	c.Assert(err, jc.ErrorIsNil)

	s.openState(c, modelTag)

	controllerInheritedConfig, err := state.ReadSettings(s.State, state.GlobalSettingsC, state.ControllerInheritedSettingsGlobalKey)
	c.Assert(err, jc.ErrorIsNil)
	c.Assert(controllerInheritedConfig.Map(), jc.DeepEquals, controllerInheritedConfigIn)

	expected := cfg.AllAttrs()
	for k, v := range config.ConfigDefaults() {
		if _, ok := expected[k]; !ok {
			expected[k] = v
		}
	}
	// Config as read from state has resources tags coerced to a map.
	expected["resource-tags"] = map[string]string{}
	cfg, err = s.State.ModelConfig()
	c.Assert(err, jc.ErrorIsNil)
	c.Assert(cfg.AllAttrs(), jc.DeepEquals, expected)
}
Esempio n. 4
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func (s *ModelConfigSourceSuite) TestUpdateModelConfigDefaults(c *gc.C) {
	// Set up values that will be removed.
	attrs := map[string]interface{}{
		"http-proxy":  "http://http-proxy",
		"https-proxy": "https://https-proxy",
	}
	err := s.State.UpdateModelConfigDefaultValues(attrs, nil, nil)
	c.Assert(err, jc.ErrorIsNil)

	attrs = map[string]interface{}{
		"apt-mirror": "http://different-mirror",
	}
	err = s.State.UpdateModelConfigDefaultValues(attrs, []string{"http-proxy", "https-proxy"}, nil)
	c.Assert(err, jc.ErrorIsNil)

	info := statetesting.NewMongoInfo()
	anotherState, err := state.Open(s.modelTag, s.State.ControllerTag(), info, mongotest.DialOpts(), state.NewPolicyFunc(nil))
	c.Assert(err, jc.ErrorIsNil)
	defer anotherState.Close()

	cfg, err := anotherState.ModelConfigDefaultValues()
	c.Assert(err, jc.ErrorIsNil)
	expectedValues := make(config.ModelDefaultAttributes)
	for attr, val := range config.ConfigDefaults() {
		expectedValues[attr] = config.AttributeDefaultValues{
			Default: val,
		}
	}
	delete(expectedValues, "http-mirror")
	delete(expectedValues, "https-mirror")
	expectedValues["apt-mirror"] = config.AttributeDefaultValues{
		Controller: "http://different-mirror",
		Default:    "",
		Regions: []config.RegionDefaultValue{{
			Name:  "dummy-region",
			Value: "http://dummy-mirror",
		}}}
	expectedValues["no-proxy"] = config.AttributeDefaultValues{
		Default: "",
		Regions: []config.RegionDefaultValue{{
			Name:  "dummy-region",
			Value: "dummy-proxy",
		}}}
	c.Assert(cfg, jc.DeepEquals, expectedValues)
}
Esempio n. 5
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// defaultInheritedConfig returns config values which are defined
// as defaults in either Juju or the state's environ provider.
func (st *State) defaultInheritedConfig() (attrValues, error) {
	var defaults = make(map[string]interface{})
	for k, v := range config.ConfigDefaults() {
		defaults[k] = v
	}
	providerDefaults, err := st.environsProviderConfigSchemaSource()
	if errors.IsNotImplemented(err) {
		return defaults, nil
	} else if err != nil {
		return nil, errors.Trace(err)
	}
	fields := schema.FieldMap(providerDefaults.ConfigSchema(), providerDefaults.ConfigDefaults())
	if coercedAttrs, err := fields.Coerce(defaults, nil); err != nil {
		return nil, errors.Trace(err)
	} else {
		for k, v := range coercedAttrs.(map[string]interface{}) {
			defaults[k] = v
		}
	}
	return defaults, nil
}
Esempio n. 6
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func (s *ModelConfigSourceSuite) TestUpdateModelConfigRegionDefaults(c *gc.C) {
	// The test env is setup with dummy/dummy-region having a no-proxy
	// dummy-proxy value and nether-region with a nether-proxy value.
	//
	// First we change the no-proxy setting in dummy-region
	attrs := map[string]interface{}{
		"no-proxy": "changed-proxy",
	}

	rspec, err := environs.NewRegionSpec("dummy", "dummy-region")
	c.Assert(err, jc.ErrorIsNil)

	err = s.State.UpdateModelConfigDefaultValues(attrs, nil, rspec)
	c.Assert(err, jc.ErrorIsNil)

	// Then check in another state.
	info := statetesting.NewMongoInfo()
	anotherState, err := state.Open(s.modelTag, s.State.ControllerTag(), info, mongotest.DialOpts(), state.NewPolicyFunc(nil))
	c.Assert(err, jc.ErrorIsNil)
	defer anotherState.Close()

	cfg, err := anotherState.ModelConfigDefaultValues()
	c.Assert(err, jc.ErrorIsNil)
	expectedValues := make(config.ModelDefaultAttributes)
	for attr, val := range config.ConfigDefaults() {
		expectedValues[attr] = config.AttributeDefaultValues{
			Default: val,
		}
	}
	expectedValues["http-proxy"] = config.AttributeDefaultValues{
		Controller: "http://proxy",
		Default:    "",
	}
	expectedValues["apt-mirror"] = config.AttributeDefaultValues{
		Controller: "http://mirror",
		Default:    "",
		Regions: []config.RegionDefaultValue{{
			Name:  "dummy-region",
			Value: "http://dummy-mirror",
		}}}
	expectedValues["no-proxy"] = config.AttributeDefaultValues{
		Default: "",
		Regions: []config.RegionDefaultValue{{
			Name:  "dummy-region",
			Value: "changed-proxy",
		}}}
	c.Assert(cfg, jc.DeepEquals, expectedValues)

	// remove the dummy-region setting
	err = s.State.UpdateModelConfigDefaultValues(nil, []string{"no-proxy"}, rspec)

	// and check again
	cfg, err = anotherState.ModelConfigDefaultValues()
	c.Assert(err, jc.ErrorIsNil)
	cfg, err = anotherState.ModelConfigDefaultValues()
	c.Assert(err, jc.ErrorIsNil)
	expectedValues = make(config.ModelDefaultAttributes)
	for attr, val := range config.ConfigDefaults() {
		expectedValues[attr] = config.AttributeDefaultValues{
			Default: val,
		}
	}
	expectedValues["http-proxy"] = config.AttributeDefaultValues{
		Controller: "http://proxy",
		Default:    "",
	}
	expectedValues["apt-mirror"] = config.AttributeDefaultValues{
		Controller: "http://mirror",
		Default:    "",
		Regions: []config.RegionDefaultValue{{
			Name:  "dummy-region",
			Value: "http://dummy-mirror",
		}}}
	c.Assert(cfg, jc.DeepEquals, expectedValues)
}
Esempio n. 7
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func (s *InitializeSuite) TestInitialize(c *gc.C) {
	cfg := testing.ModelConfig(c)
	uuid := cfg.UUID()
	owner := names.NewLocalUserTag("initialize-admin")

	userPassCredentialTag := names.NewCloudCredentialTag(
		"dummy/" + owner.Canonical() + "/some-credential",
	)
	emptyCredentialTag := names.NewCloudCredentialTag(
		"dummy/" + owner.Canonical() + "/empty-credential",
	)
	userpassCredential := cloud.NewCredential(
		cloud.UserPassAuthType,
		map[string]string{
			"username": "******",
			"password": "******",
		},
	)
	userpassCredential.Label = userPassCredentialTag.Name()
	emptyCredential := cloud.NewEmptyCredential()
	emptyCredential.Label = emptyCredentialTag.Name()
	cloudCredentialsIn := map[names.CloudCredentialTag]cloud.Credential{
		userPassCredentialTag: userpassCredential,
		emptyCredentialTag:    emptyCredential,
	}
	controllerCfg := testing.FakeControllerConfig()

	st, err := state.Initialize(state.InitializeParams{
		Clock:            clock.WallClock,
		ControllerConfig: controllerCfg,
		ControllerModelArgs: state.ModelArgs{
			Owner:                   owner,
			Config:                  cfg,
			CloudName:               "dummy",
			CloudRegion:             "dummy-region",
			CloudCredential:         userPassCredentialTag,
			StorageProviderRegistry: storage.StaticProviderRegistry{},
		},
		CloudName: "dummy",
		Cloud: cloud.Cloud{
			Type: "dummy",
			AuthTypes: []cloud.AuthType{
				cloud.EmptyAuthType, cloud.UserPassAuthType,
			},
			Regions: []cloud.Region{{Name: "dummy-region"}},
		},
		CloudCredentials: cloudCredentialsIn,
		MongoInfo:        statetesting.NewMongoInfo(),
		MongoDialOpts:    mongotest.DialOpts(),
	})
	c.Assert(err, jc.ErrorIsNil)
	c.Assert(st, gc.NotNil)
	modelTag := st.ModelTag()
	c.Assert(modelTag.Id(), gc.Equals, uuid)
	err = st.Close()
	c.Assert(err, jc.ErrorIsNil)

	s.openState(c, modelTag)

	cfg, err = s.State.ModelConfig()
	c.Assert(err, jc.ErrorIsNil)
	expected := cfg.AllAttrs()
	for k, v := range config.ConfigDefaults() {
		if _, ok := expected[k]; !ok {
			expected[k] = v
		}
	}
	c.Assert(cfg.AllAttrs(), jc.DeepEquals, expected)
	// Check that the model has been created.
	model, err := s.State.Model()
	c.Assert(err, jc.ErrorIsNil)
	c.Assert(model.Tag(), gc.Equals, modelTag)
	c.Assert(model.CloudRegion(), gc.Equals, "dummy-region")
	// Check that the owner has been created.
	c.Assert(model.Owner(), gc.Equals, owner)
	// Check that the owner can be retrieved by the tag.
	entity, err := s.State.FindEntity(model.Owner())
	c.Assert(err, jc.ErrorIsNil)
	c.Assert(entity.Tag(), gc.Equals, owner)
	// Check that the owner has an ModelUser created for the bootstrapped model.
	modelUser, err := s.State.UserAccess(model.Owner(), model.Tag())
	c.Assert(err, jc.ErrorIsNil)
	c.Assert(modelUser.UserTag, gc.Equals, owner)
	c.Assert(modelUser.Object, gc.Equals, model.Tag())

	// Check that the model can be found through the tag.
	entity, err = s.State.FindEntity(modelTag)
	c.Assert(err, jc.ErrorIsNil)
	cons, err := s.State.ModelConstraints()
	c.Assert(err, jc.ErrorIsNil)
	c.Assert(&cons, jc.Satisfies, constraints.IsEmpty)

	addrs, err := s.State.APIHostPorts()
	c.Assert(err, jc.ErrorIsNil)
	c.Assert(addrs, gc.HasLen, 0)

	info, err := s.State.ControllerInfo()
	c.Assert(err, jc.ErrorIsNil)
	c.Assert(info, jc.DeepEquals, &state.ControllerInfo{ModelTag: modelTag, CloudName: "dummy"})

	// Check that the model's cloud and credential names are as
	// expected, and the owner's cloud credentials are initialised.
	c.Assert(model.Cloud(), gc.Equals, "dummy")
	credentialTag, ok := model.CloudCredential()
	c.Assert(ok, jc.IsTrue)
	c.Assert(credentialTag, gc.Equals, userPassCredentialTag)
	cloudCredentials, err := s.State.CloudCredentials(model.Owner(), "dummy")
	c.Assert(err, jc.ErrorIsNil)
	expectedCred := make(map[string]cloud.Credential, len(cloudCredentialsIn))
	for tag, cred := range cloudCredentialsIn {
		expectedCred[tag.Canonical()] = cred
	}
	c.Assert(cloudCredentials, jc.DeepEquals, expectedCred)
}
Esempio n. 8
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File: open.go Progetto: bac/juju
// modelSetupOps returns the transactions necessary to set up a model.
func (st *State) modelSetupOps(controllerUUID string, args ModelArgs, inherited *lineage) ([]txn.Op, error) {
	if inherited != nil {
		if err := checkControllerInheritedConfig(inherited.ControllerConfig); err != nil {
			return nil, errors.Trace(err)
		}
	}
	if err := checkModelConfig(args.Config); err != nil {
		return nil, errors.Trace(err)
	}

	controllerModelUUID := st.controllerModelTag.Id()
	modelUUID := args.Config.UUID()
	modelStatusDoc := statusDoc{
		ModelUUID: modelUUID,
		Updated:   st.clock.Now().UnixNano(),
		Status:    status.Available,
	}

	modelUserOps := createModelUserOps(
		modelUUID, args.Owner, args.Owner, args.Owner.Name(), st.NowToTheSecond(), permission.AdminAccess,
	)
	ops := []txn.Op{
		createStatusOp(st, modelGlobalKey, modelStatusDoc),
		createConstraintsOp(st, modelGlobalKey, args.Constraints),
	}
	// Inc ref count for hosted models.
	if controllerModelUUID != modelUUID {
		ops = append(ops, incHostedModelCountOp())
	}

	// Create the default storage pools for the model.
	defaultStoragePoolsOps, err := st.createDefaultStoragePoolsOps(args.StorageProviderRegistry)
	if err != nil {
		return nil, errors.Trace(err)
	}
	ops = append(ops, defaultStoragePoolsOps...)

	// Create the final map of config attributes for the model.
	// If we have ControllerInheritedConfig passed in, that means state
	// is being initialised and there won't be any config sources
	// in state.
	var configSources []modelConfigSource
	if inherited != nil {
		configSources = []modelConfigSource{
			{
				name: config.JujuDefaultSource,
				sourceFunc: modelConfigSourceFunc(func() (attrValues, error) {
					return config.ConfigDefaults(), nil
				})},
			{
				name: config.JujuControllerSource,
				sourceFunc: modelConfigSourceFunc(func() (attrValues, error) {
					return inherited.ControllerConfig, nil
				})},
			{
				name: config.JujuRegionSource,
				sourceFunc: modelConfigSourceFunc(func() (attrValues, error) {
					// We return the values specific to this region for this model.
					return attrValues(inherited.RegionConfig[args.CloudRegion]), nil
				})},
		}
	} else {
		rspec := &environs.RegionSpec{Cloud: args.CloudName, Region: args.CloudRegion}
		configSources = modelConfigSources(st, rspec)
	}
	modelCfg, err := composeModelConfigAttributes(args.Config.AllAttrs(), configSources...)
	if err != nil {
		return nil, errors.Trace(err)
	}
	// Some values require marshalling before storage.
	modelCfg = config.CoerceForStorage(modelCfg)
	ops = append(ops,
		createSettingsOp(settingsC, modelGlobalKey, modelCfg),
		createModelEntityRefsOp(modelUUID),
		createModelOp(
			args.Owner,
			args.Config.Name(),
			modelUUID, controllerUUID,
			args.CloudName, args.CloudRegion, args.CloudCredential,
			args.MigrationMode,
		),
		createUniqueOwnerModelNameOp(args.Owner, args.Config.Name()),
	)
	ops = append(ops, modelUserOps...)
	return ops, nil
}
Esempio n. 9
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// 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) {
	if err := c.parseConstraints(ctx); err != nil {
		return err
	}
	if c.BootstrapImage != "" {
		if c.BootstrapSeries == "" {
			return errors.Errorf("--bootstrap-image must be used with --bootstrap-series")
		}
		cons, err := constraints.Merge(c.Constraints, c.BootstrapConstraints)
		if err != nil {
			return errors.Trace(err)
		}
		if !cons.HasArch() {
			return errors.Errorf("--bootstrap-image must be used with --bootstrap-constraints, specifying architecture")
		}
	}
	if c.interactive {
		if err := c.runInteractive(ctx); err != nil {
			return errors.Trace(err)
		}
		// now run normal bootstrap using info gained above.
	}
	if c.showClouds {
		return printClouds(ctx, c.ClientStore())
	}
	if c.showRegionsForCloud != "" {
		return printCloudRegions(ctx, c.showRegionsForCloud)
	}

	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 := bootstrapFuncs.CloudRegionDetector(provider)
		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"))
		}
		var cloudEndpoint string
		regions, err := detector.DetectRegions()
		if errors.IsNotFound(err) {
			// It's not an error to have no regions. If the
			// provider does not support regions, then we
			// reinterpret the supplied region name as the
			// cloud's endpoint. This enables the user to
			// supply, for example, maas/<IP> or manual/<IP>.
			if c.Region != "" {
				ctx.Verbosef("interpreting %q as the cloud endpoint", c.Region)
				cloudEndpoint = c.Region
				c.Region = ""
			}
		} else if err != nil {
			return errors.Annotatef(err,
				"detecting regions for %q cloud provider",
				c.Cloud,
			)
		}
		schemas := provider.CredentialSchemas()
		authTypes := make([]jujucloud.AuthType, 0, len(schemas))
		for authType := range schemas {
			authTypes = append(authTypes, authType)
		}
		// Since we are iterating over a map, lets sort the authTypes so
		// they are always in a consistent order.
		sort.Sort(jujucloud.AuthTypes(authTypes))
		cloud = &jujucloud.Cloud{
			Type:      c.Cloud,
			AuthTypes: authTypes,
			Endpoint:  cloudEndpoint,
			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)
	}

	provider, err := environs.Provider(cloud.Type)
	if err != nil {
		return errors.Trace(err)
	}
	// Custom clouds may not have explicitly declared support for any auth-
	// types, in which case we'll assume that they support everything that
	// the provider supports.
	if len(cloud.AuthTypes) == 0 {
		for authType := range provider.CredentialSchemas() {
			cloud.AuthTypes = append(cloud.AuthTypes, authType)
		}
	}

	// Get the credentials and region name.
	store := c.ClientStore()
	var detectedCredentialName string
	credential, credentialName, regionName, err := modelcmd.GetCredentials(
		ctx, store, modelcmd.GetCredentialsParams{
			Cloud:          *cloud,
			CloudName:      c.Cloud,
			CloudRegion:    c.Region,
			CredentialName: c.CredentialName,
		},
	)
	if errors.Cause(err) == modelcmd.ErrMultipleCredentials {
		return ambiguousCredentialError
	}
	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 ambiguousDetectedCredentialError
		} else if err != nil {
			return errors.Trace(err)
		}
		// We have one credential so extract it from the map.
		var oneCredential jujucloud.Credential
		for detectedCredentialName, oneCredential = range detected.AuthCredentials {
		}
		credential = &oneCredential
		regionName = c.Region
		if regionName == "" {
			regionName = detected.DefaultRegion
		}
		logger.Debugf(
			"authenticating with region %q and credential %q (%v)",
			regionName, detectedCredentialName, credential.Label,
		)
		logger.Tracef("credential: %v", credential)
	} else if err != nil {
		return errors.Trace(err)
	}

	region, err := getRegion(cloud, c.Cloud, regionName)
	if err != nil {
		fmt.Fprintf(ctx.GetStderr(),
			"%s\n\nSpecify an alternative region, or try %q.",
			err, "juju update-clouds",
		)
		return cmd.ErrSilent
	}

	controllerModelUUID, err := utils.NewUUID()
	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 a model config, and split out any controller
	// and bootstrap config attributes.
	modelConfigAttrs := map[string]interface{}{
		"type":         cloud.Type,
		"name":         bootstrap.ControllerModelName,
		config.UUIDKey: controllerModelUUID.String(),
	}
	userConfigAttrs, err := c.config.ReadAttrs(ctx)
	if err != nil {
		return errors.Trace(err)
	}

	// The provider may define some custom attributes specific
	// to the provider. These will be added to the model config.
	providerAttrs := make(map[string]interface{})
	if ps, ok := provider.(config.ConfigSchemaSource); ok {
		for attr := range ps.ConfigSchema() {
			if v, ok := userConfigAttrs[attr]; ok {
				providerAttrs[attr] = v
			}
		}
		fields := schema.FieldMap(ps.ConfigSchema(), ps.ConfigDefaults())
		if coercedAttrs, err := fields.Coerce(providerAttrs, nil); err != nil {
			return errors.Annotatef(err, "invalid attribute value(s) for %v cloud", cloud.Type)
		} else {
			providerAttrs = coercedAttrs.(map[string]interface{})
		}
	}
	logger.Debugf("provider attrs: %v", providerAttrs)
	for k, v := range userConfigAttrs {
		modelConfigAttrs[k] = v
	}
	// Provider specific attributes are either already specified in model
	// config (but may have been coerced), or were not present. Either way,
	// copy them in.
	for k, v := range providerAttrs {
		modelConfigAttrs[k] = v
	}
	bootstrapConfigAttrs := make(map[string]interface{})
	controllerConfigAttrs := make(map[string]interface{})
	// Based on the attribute names in clouds.yaml, create
	// a map of shared config for all models on this cloud.
	inheritedControllerAttrs := make(map[string]interface{})
	for k, v := range cloud.Config {
		switch {
		case bootstrap.IsBootstrapAttribute(k):
			bootstrapConfigAttrs[k] = v
			continue
		case controller.ControllerOnlyAttribute(k):
			controllerConfigAttrs[k] = v
			continue
		}
		inheritedControllerAttrs[k] = v
	}
	for k, v := range modelConfigAttrs {
		switch {
		case bootstrap.IsBootstrapAttribute(k):
			bootstrapConfigAttrs[k] = v
			delete(modelConfigAttrs, k)
		case controller.ControllerOnlyAttribute(k):
			controllerConfigAttrs[k] = v
			delete(modelConfigAttrs, k)
		}
	}
	bootstrapConfig, err := bootstrap.NewConfig(bootstrapConfigAttrs)
	if err != nil {
		return errors.Annotate(err, "constructing bootstrap config")
	}
	controllerConfig, err := controller.NewConfig(
		controllerUUID.String(), bootstrapConfig.CACert, controllerConfigAttrs,
	)
	if err != nil {
		return errors.Annotate(err, "constructing controller config")
	}
	if err := common.FinalizeAuthorizedKeys(ctx, modelConfigAttrs); err != nil {
		return errors.Annotate(err, "finalizing authorized-keys")
	}
	logger.Debugf("preparing controller with config: %v", modelConfigAttrs)

	// Read existing current controller so we can clean up on error.
	var oldCurrentController string
	oldCurrentController, err = store.CurrentController()
	if errors.IsNotFound(err) {
		oldCurrentController = ""
	} else if err != nil {
		return errors.Annotate(err, "error reading current controller")
	}

	defer func() {
		if resultErr == nil || errors.IsAlreadyExists(resultErr) {
			return
		}
		if oldCurrentController != "" {
			if err := store.SetCurrentController(oldCurrentController); err != nil {
				logger.Errorf(
					"cannot reset current controller to %q: %v",
					oldCurrentController, err,
				)
			}
		}
		if err := store.RemoveController(c.controllerName); err != nil {
			logger.Errorf(
				"cannot destroy newly created controller %q details: %v",
				c.controllerName, err,
			)
		}
	}()

	bootstrapModelConfig := make(map[string]interface{})
	for k, v := range inheritedControllerAttrs {
		bootstrapModelConfig[k] = v
	}
	for k, v := range modelConfigAttrs {
		bootstrapModelConfig[k] = v
	}
	// Add in any default attribute values if not already
	// specified, making the recorded bootstrap config
	// immutable to changes in Juju.
	for k, v := range config.ConfigDefaults() {
		if _, ok := bootstrapModelConfig[k]; !ok {
			bootstrapModelConfig[k] = v
		}
	}

	environ, err := bootstrapPrepare(
		modelcmd.BootstrapContext(ctx), store,
		bootstrap.PrepareParams{
			ModelConfig:      bootstrapModelConfig,
			ControllerConfig: controllerConfig,
			ControllerName:   c.controllerName,
			Cloud: environs.CloudSpec{
				Type:             cloud.Type,
				Name:             c.Cloud,
				Region:           region.Name,
				Endpoint:         region.Endpoint,
				IdentityEndpoint: region.IdentityEndpoint,
				StorageEndpoint:  region.StorageEndpoint,
				Credential:       credential,
			},
			CredentialName: credentialName,
			AdminSecret:    bootstrapConfig.AdminSecret,
		},
	)
	if err != nil {
		return errors.Trace(err)
	}

	// Set the current model to the initial hosted model.
	if err := store.UpdateModel(c.controllerName, c.hostedModelName, jujuclient.ModelDetails{
		hostedModelUUID.String(),
	}); err != nil {
		return errors.Trace(err)
	}
	if err := store.SetCurrentModel(c.controllerName, c.hostedModelName); err != nil {
		return errors.Trace(err)
	}

	// Set the current controller so "juju status" can be run while
	// bootstrapping is underway.
	if err := store.SetCurrentController(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 {
				ctx.Infof(`
bootstrap failed but --keep-broken was specified so resources are not being destroyed.
When you have finished diagnosing the problem, remember to clean up the failed controller.
See `[1:] + "`juju kill-controller`" + `.`)
			} 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(),
	}
	for k, v := range inheritedControllerAttrs {
		hostedModelConfig[k] = v
	}

	// 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.
	controllerModelConfigAttrs := environ.Config().AllAttrs()
	for k, v := range userConfigAttrs {
		if _, ok := controllerModelConfigAttrs[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.AuthorizedKeysKey)
	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()
	}

	if credentialName == "" {
		// credentialName will be empty if the credential was detected.
		// We must supply a name for the credential in the database,
		// so choose one.
		credentialName = detectedCredentialName
	}

	err = bootstrapFuncs.Bootstrap(modelcmd.BootstrapContext(ctx), environ, bootstrap.BootstrapParams{
		ModelConstraints:          c.Constraints,
		BootstrapConstraints:      bootstrapConstraints,
		BootstrapSeries:           c.BootstrapSeries,
		BootstrapImage:            c.BootstrapImage,
		Placement:                 c.Placement,
		BuildAgent:                c.BuildAgent,
		BuildAgentTarball:         sync.BuildAgentTarball,
		AgentVersion:              c.AgentVersion,
		MetadataDir:               metadataDir,
		Cloud:                     *cloud,
		CloudName:                 c.Cloud,
		CloudRegion:               region.Name,
		CloudCredential:           credential,
		CloudCredentialName:       credentialName,
		ControllerConfig:          controllerConfig,
		ControllerInheritedConfig: inheritedControllerAttrs,
		RegionInheritedConfig:     cloud.RegionConfig,
		HostedModelConfig:         hostedModelConfig,
		GUIDataSourceBaseURL:      guiDataSourceBaseURL,
		AdminSecret:               bootstrapConfig.AdminSecret,
		CAPrivateKey:              bootstrapConfig.CAPrivateKey,
		DialOpts: environs.BootstrapDialOpts{
			Timeout:        bootstrapConfig.BootstrapTimeout,
			RetryDelay:     bootstrapConfig.BootstrapRetryDelay,
			AddressesDelay: bootstrapConfig.BootstrapAddressesDelay,
		},
	})
	if err != nil {
		return errors.Annotate(err, "failed to bootstrap model")
	}

	if err := c.SetModelName(modelcmd.JoinModelName(c.controllerName, c.hostedModelName)); err != nil {
		return errors.Trace(err)
	}

	agentVersion := jujuversion.Current
	if c.AgentVersion != nil {
		agentVersion = *c.AgentVersion
	}
	err = common.SetBootstrapEndpointAddress(c.ClientStore(), c.controllerName, agentVersion, controllerConfig.APIPort(), 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 waitForAgentInitialisation(ctx, &c.ModelCommandBase, c.controllerName, c.hostedModelName)
}