Documentation
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Index ¶
- Variables
- func CreateTag(instanceId, tagKey, tagValue string) error
- func DetachInstance(asName, instanceId string) error
- func FilterInstancesByTag(asInstances []*autoscaling.Instance, tag string) ([]*ec2.Instance, error)
- func GetTags(instanceId string) ([]*ec2.TagDescription, error)
- func PutMetricData(metricName string, value float64) error
- func RemoveTag(instanceId, tagKey string) error
- func ScaleAS(name string, desired int) error
- func TerminateInstance(instanceId string) error
- type ASMeta
Constants ¶
This section is empty.
Variables ¶
View Source
var (
ErrNoInstancesGive = errors.New("no instances given")
)
Functions ¶
func DetachInstance ¶
func FilterInstancesByTag ¶
given a []autoscaling.Instance and a tag-key, filter instances that have the given tag-key and return a []ec2.Instance or an error
func PutMetricData ¶
func TerminateInstance ¶
Terminate the given instance
Types ¶
type ASMeta ¶
type ASMeta struct {
MinSize, MaxSize int // stored as "MinSize" and "MaxSize" of the AS
MinFree, MaxFree int // stored as tags "min-free" and "max-free"
Instances []*autoscaling.Instance // list of *all* instances
Healthy []*autoscaling.Instance // list of instances that are InService and Healthy
}
Instead of maintaing these values as constants, we use the AS itself to store them.
This prevents a situation in where the environments (i.e. dev and alpha) don't agree on the constant values and their watchdogs induce flapping on the shared AS.
Source Files
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