Documentation
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Index ¶
Constants ¶
This section is empty.
Variables ¶
var ( // A set of user-friendly descriptions for potentially supported // features that are known to the controller. This allows us to // generate better error messages when an "assumes" expression requests a // feature that is not included in the feature set supported by the // current model. UserFriendlyFeatureDescriptions = map[string]string{ "juju": "the version of Juju used by the model", "k8s-api": "the Kubernetes API lets charms query and manipulate the state of API objects in a Kubernetes cluster", } )
Functions ¶
func IsRequirementsNotSatisfiedError ¶
IsRequirementsNotSatisfiedError returns true if err is a RequirementsNotSatisfiedError.
Types ¶
type Feature ¶
type Feature struct {
// The name of the feature.
Name string
// A user-friendly description of what the feature provides.
Description string
// An optional semantic version for this feature. It can be left empty
// to signify that a particular feature is available without explicitly
// specifying a version
Version *version.Number
}
Feature identifies a particular piece of functionality provided by a Juju controller depending on the substrate associated with a particular model.
type FeatureSet ¶
type FeatureSet struct {
// contains filtered or unexported fields
}
FeatureSet describes a set of features supported by a particular model.
func (*FeatureSet) Add ¶
func (fs *FeatureSet) Add(features ...Feature)
Add a list of Features to the feature set. Duplicate feature entries will be ignored.
func (*FeatureSet) AsList ¶
func (fs *FeatureSet) AsList() []Feature
AsList returns the contents of this set as a list sorted by feature name.
func (FeatureSet) Get ¶
func (fs FeatureSet) Get(featName string) (Feature, bool)
Get a feature with the provide feature name. The method returns a boolean value to indicate if the feature was found.
func (*FeatureSet) Merge ¶
func (fs *FeatureSet) Merge(other FeatureSet)
Merge the features from other into this feature set.
func (FeatureSet) Satisfies ¶
func (fs FeatureSet) Satisfies(assumesExprTree *chassumes.ExpressionTree) error
Satisfies checks whether the feature set contents satisfy the provided "assumes" expression tree and returns an error otherwise.
type RequirementsNotSatisfiedError ¶
type RequirementsNotSatisfiedError struct {
// contains filtered or unexported fields
}
RequirementsNotSatisfiedError indicates that the set of features supported by a model cannot satisfy an "assumes" expression tree as specified in the charm metadata.
func (*RequirementsNotSatisfiedError) Error ¶
func (err *RequirementsNotSatisfiedError) Error() string
Error returns the error message associated with this error.
Source Files