open-nomad/api/scaling.go

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package api
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const (
// ScalingPolicyTypeHorizontal indicates a policy that does horizontal scaling.
ScalingPolicyTypeHorizontal = "horizontal"
)
// Scaling is used to query scaling-related API endpoints
type Scaling struct {
client *Client
}
// Scaling returns a handle on the scaling endpoints.
func (c *Client) Scaling() *Scaling {
return &Scaling{client: c}
}
func (s *Scaling) ListPolicies(q *QueryOptions) ([]*ScalingPolicyListStub, *QueryMeta, error) {
var resp []*ScalingPolicyListStub
qm, err := s.client.query("/v1/scaling/policies", &resp, q)
if err != nil {
return nil, nil, err
}
return resp, qm, nil
}
func (s *Scaling) GetPolicy(id string, q *QueryOptions) (*ScalingPolicy, *QueryMeta, error) {
var policy ScalingPolicy
qm, err := s.client.query("/v1/scaling/policy/"+id, &policy, q)
if err != nil {
return nil, nil, err
}
return &policy, qm, nil
}
func (p *ScalingPolicy) Canonicalize(taskGroupCount int) {
if p.Enabled == nil {
p.Enabled = boolToPtr(true)
}
if p.Min == nil {
var m int64 = int64(taskGroupCount)
p.Min = &m
}
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if p.Type == "" {
p.Type = ScalingPolicyTypeHorizontal
}
}
// ScalingRequest is the payload for a generic scaling action
type ScalingRequest struct {
Count *int64
Target map[string]string
Message string
Error bool
Meta map[string]interface{}
WriteRequest
// this is effectively a job update, so we need the ability to override policy.
PolicyOverride bool
}
// ScalingPolicy is the user-specified API object for an autoscaling policy
type ScalingPolicy struct {
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/* fields set by user in HCL config */
Min *int64 `hcl:"min,optional"`
Max *int64 `hcl:"max,optional"`
Policy map[string]interface{} `hcl:"policy,block"`
Enabled *bool `hcl:"enabled,optional"`
Type string `hcl:"type,optional"`
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/* fields set by server */
ID string
Namespace string
Target map[string]string
CreateIndex uint64
ModifyIndex uint64
}
// ScalingPolicyListStub is used to return a subset of scaling policy information
// for the scaling policy list
type ScalingPolicyListStub struct {
ID string
Enabled bool
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Type string
Target map[string]string
CreateIndex uint64
ModifyIndex uint64
}
// JobScaleStatusResponse is used to return information about job scaling status
type JobScaleStatusResponse struct {
JobID string
Namespace string
JobCreateIndex uint64
JobModifyIndex uint64
JobStopped bool
TaskGroups map[string]TaskGroupScaleStatus
}
type TaskGroupScaleStatus struct {
Desired int
Placed int
Running int
Healthy int
Unhealthy int
Events []ScalingEvent
}
type ScalingEvent struct {
Count *int64
PreviousCount int64
Error bool
Message string
Meta map[string]interface{}
EvalID *string
Time uint64
CreateIndex uint64
}