func (s *ConfigSuite) TestCoerceForStorage(c *gc.C) {
cfg := newTestConfig(c, testing.Attrs{
"resource-tags": "a=b c=d"})
tags, ok := cfg.ResourceTags()
c.Assert(ok, jc.IsTrue)
expectedTags := map[string]string{"a": "b", "c": "d"}
c.Assert(tags, gc.DeepEquals, expectedTags)
tagsStr := config.CoerceForStorage(cfg.AllAttrs())["resource-tags"].(string)
tagItems := strings.Split(tagsStr, " ")
tagsMap := make(map[string]string)
for _, kv := range tagItems {
parts := strings.Split(kv, "=")
tagsMap[parts[0]] = parts[1]
}
c.Assert(tagsMap, gc.DeepEquals, expectedTags)
}
func (s *ModelConfigSuite) TestUpdateModelConfigCoerce(c *gc.C) {
attrs := map[string]interface{}{
"resource-tags": map[string]string{"a": "b", "c": "d"},
}
err := s.State.UpdateModelConfig(attrs, nil, nil)
c.Assert(err, jc.ErrorIsNil)
modelSettings, err := s.State.ReadSettings(state.SettingsC, state.ModelGlobalKey)
c.Assert(err, jc.ErrorIsNil)
expectedTags := map[string]string{"a": "b", "c": "d"}
tagsStr := config.CoerceForStorage(modelSettings.Map())["resource-tags"].(string)
tagItems := strings.Split(tagsStr, " ")
tagsMap := make(map[string]string)
for _, kv := range tagItems {
parts := strings.Split(kv, "=")
tagsMap[parts[0]] = parts[1]
}
c.Assert(tagsMap, gc.DeepEquals, expectedTags)
cfg, err := s.State.ModelConfig()
c.Assert(err, jc.ErrorIsNil)
c.Assert(cfg.AllAttrs()["resource-tags"], gc.DeepEquals, expectedTags)
}
// UpdateModelConfig adds, updates or removes attributes in the current
// configuration of the model with the provided updateAttrs and
// removeAttrs.
func (st *State) UpdateModelConfig(updateAttrs map[string]interface{}, removeAttrs []string, additionalValidation ValidateConfigFunc) error {
if len(updateAttrs)+len(removeAttrs) == 0 {
return nil
}
if len(removeAttrs) > 0 {
var removed []string
if updateAttrs == nil {
updateAttrs = make(map[string]interface{})
}
// For each removed attribute, pick up any inherited value
// and if there's one, use that.
inherited, err := st.inheritedConfigAttributes()
if err != nil {
return errors.Trace(err)
}
for _, attr := range removeAttrs {
// We we are updating an attribute, that takes
// precedence over removing.
if _, ok := updateAttrs[attr]; ok {
continue
}
if val, ok := inherited[attr]; ok {
updateAttrs[attr] = val
} else {
removed = append(removed, attr)
}
}
removeAttrs = removed
}
// TODO(axw) 2013-12-6 #1167616
// Ensure that the settings on disk have not changed
// underneath us. The settings changes are actually
// applied as a delta to what's on disk; if there has
// been a concurrent update, the change may not be what
// the user asked for.
modelSettings, err := readSettings(st, settingsC, modelGlobalKey)
if err != nil {
return errors.Trace(err)
}
// Get the existing model config from state.
oldConfig, err := st.ModelConfig()
if err != nil {
return errors.Trace(err)
}
if additionalValidation != nil {
err = additionalValidation(updateAttrs, removeAttrs, oldConfig)
if err != nil {
return errors.Trace(err)
}
}
validCfg, err := st.buildAndValidateModelConfig(updateAttrs, removeAttrs, oldConfig)
if err != nil {
return errors.Trace(err)
}
validAttrs := validCfg.AllAttrs()
for k := range oldConfig.AllAttrs() {
if _, ok := validAttrs[k]; !ok {
modelSettings.Delete(k)
}
}
// Some values require marshalling before storage.
validAttrs = config.CoerceForStorage(validAttrs)
modelSettings.Update(validAttrs)
_, ops := modelSettings.settingsUpdateOps()
return modelSettings.write(ops)
}
// 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
}