README
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NodesMonitor controller tests example
This example shows how to unit test the relevant behaviors of a sample controller, NodesMonitorController.
Its main duty is counting the nodes in the cluster, by honoring the configuration specified by the user in the
NodesMonitor custom resource.
Different resources could be used to count different kind of nodes. The user can specify a label filter to select
which nodes must be counted, and an alert threshold value. Every time the number of nodes crosses the threshold,
a new ThresholdExceeded condition is appended in the related resource.
It's also possible to turn on/off the monitoring activity by setting the Active field.
Documentation
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Index ¶
Constants ¶
This section is empty.
Variables ¶
View Source
var ( // GroupVersion is group version used to register these objects GroupVersion = schema.GroupVersion{Group: "NodesMonitor", Version: "v1"} // SchemeBuilder is used to add go types to the GroupVersionKind scheme SchemeBuilder = &scheme.Builder{GroupVersion: GroupVersion} // AddToScheme adds the types in this group-version to the given scheme. AddToScheme = SchemeBuilder.AddToScheme )
Functions ¶
This section is empty.
Types ¶
type NodesMonitor ¶
type NodesMonitor struct {
v1.TypeMeta `json:",inline"`
v1.ObjectMeta `json:"metadata,omitempty"`
Spec NodesMonitorSpec `json:"spec,omitempty"`
Status NodesMonitorStatus `json:"status,omitempty"`
}
func (*NodesMonitor) DeepCopy ¶
func (in *NodesMonitor) DeepCopy() *NodesMonitor
func (*NodesMonitor) DeepCopyInto ¶
func (in *NodesMonitor) DeepCopyInto(out *NodesMonitor)
func (*NodesMonitor) DeepCopyObject ¶
func (in *NodesMonitor) DeepCopyObject() runtime.Object
func (*NodesMonitor) GetObjectKind ¶
func (in *NodesMonitor) GetObjectKind() schema.ObjectKind
type NodesMonitorController ¶
type NodesMonitorSpec ¶
type NodesMonitorSpec struct {
// Active indicates whether the monitor must be enabled or not.
Active bool `json:"active"`
// AlertThreshold specifies the threshold for triggering an alert.
AlertThreshold int `json:"alertThreshold"`
// NodeLabelFilter selects only nodes with the specified label name
// (value is ignored).
NodeLabelFilter string `json:"nodeLabelFilter,omitempty"`
}
type NodesMonitorStatus ¶
type NodesMonitorStatus struct {
// The current number of nodes found.
NumNodes int `json:"numNodes"`
// If the current resource is active or not.
Active bool `json:"active"`
// History of the threshold changes.
Conditions []v1.Condition `json:"conditions,omitempty"`
}
func (*NodesMonitorStatus) AddThresholdExceededCondition ¶
func (nms *NodesMonitorStatus) AddThresholdExceededCondition(thresholdExceeded bool)
func (*NodesMonitorStatus) DeepCopy ¶
func (in *NodesMonitorStatus) DeepCopy() *NodesMonitorStatus
func (*NodesMonitorStatus) GetLatestCondition ¶
func (nms *NodesMonitorStatus) GetLatestCondition() *v1.Condition
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