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detangles reconciler and pool manager
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,183 @@ | ||
| package launch | ||
|
|
||
| import ( | ||
| "github.com/sapcc/kubernikus/pkg/api/models" | ||
| "github.com/sapcc/kubernikus/pkg/apis/kubernikus/v1" | ||
| "github.com/sapcc/kubernikus/pkg/client/openstack" | ||
| "github.com/sapcc/kubernikus/pkg/controller/config" | ||
| "github.com/sapcc/kubernikus/pkg/controller/metrics" | ||
| "github.com/sapcc/kubernikus/pkg/templates" | ||
|
|
||
| "github.com/go-kit/kit/log" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| ) | ||
|
|
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| type PoolManager interface { | ||
| GetStatus() (*PoolStatus, error) | ||
| SetStatus(*PoolStatus) error | ||
| CreateNode() (string, error) | ||
| DeleteNode(string) error | ||
| } | ||
|
|
||
| type PoolStatus struct { | ||
| Nodes []string | ||
| Running int | ||
| Starting int | ||
| Stopping int | ||
| Needed int | ||
| UnNeeded int | ||
| } | ||
|
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| type ConcretePoolManager struct { | ||
| config.Clients | ||
|
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| Kluster *v1.Kluster | ||
| Pool *models.NodePool | ||
| Logger log.Logger | ||
| } | ||
|
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| func (lr *LaunchReconciler) newPoolManager(kluster *v1.Kluster, pool *models.NodePool) PoolManager { | ||
| logger := log.With(lr.Logger, | ||
| "kluster", kluster.Spec.Name, | ||
| "project", kluster.Account(), | ||
| "pool", pool.Name) | ||
|
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||
| var pm PoolManager | ||
| pm = &ConcretePoolManager{lr.Clients, kluster, pool, logger} | ||
| pm = &EventingPoolManager{pm, kluster, lr.Recorder} | ||
| pm = &LoggingPoolManager{pm, logger} | ||
| pm = &InstrumentingPoolManager{pm, | ||
| metrics.LaunchOperationsLatency, | ||
| metrics.LaunchOperationsTotal, | ||
| metrics.LaunchSuccessfulOperationsTotal, | ||
| metrics.LaunchFailedOperationsTotal, | ||
| } | ||
|
|
||
| return pm | ||
| } | ||
|
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| func (cpm *ConcretePoolManager) GetStatus() (status *PoolStatus, err error) { | ||
| status = &PoolStatus{} | ||
| nodes, err := cpm.Clients.Openstack.GetNodes(cpm.Kluster, cpm.Pool) | ||
| if err != nil { | ||
| return status, err | ||
| } | ||
|
|
||
| return &PoolStatus{ | ||
| Nodes: cpm.nodeIDs(nodes), | ||
| Running: cpm.running(nodes), | ||
| Starting: cpm.starting(nodes), | ||
| Stopping: cpm.stopping(nodes), | ||
| Needed: cpm.needed(nodes), | ||
| UnNeeded: cpm.unNeeded(nodes), | ||
| }, nil | ||
| } | ||
|
|
||
| func (cpm *ConcretePoolManager) SetStatus(status *PoolStatus) error { | ||
| newInfo := models.NodePoolInfo{ | ||
| Name: cpm.Pool.Name, | ||
| Size: cpm.Pool.Size, | ||
| Running: int64(status.Running + status.Starting), | ||
| Healthy: int64(status.Running), | ||
| Schedulable: int64(status.Running), | ||
| } | ||
|
|
||
| copy, err := cpm.Clients.Kubernikus.Kubernikus().Klusters(cpm.Kluster.Namespace).Get(cpm.Kluster.Name, metav1.GetOptions{}) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| for i, curInfo := range copy.Status.NodePools { | ||
| if curInfo.Name == newInfo.Name { | ||
| if curInfo == newInfo { | ||
| return nil | ||
| } | ||
|
|
||
| copy.Status.NodePools[i] = newInfo | ||
| _, err = cpm.Clients.Kubernikus.Kubernikus().Klusters(copy.Namespace).Update(copy) | ||
| return err | ||
| } | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
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| func (cpm *ConcretePoolManager) CreateNode() (id string, err error) { | ||
| secret, err := cpm.Clients.Kubernetes.CoreV1().Secrets(cpm.Kluster.Namespace).Get(cpm.Kluster.GetName(), metav1.GetOptions{}) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
|
|
||
| userdata, err := templates.Ignition.GenerateNode(cpm.Kluster, secret) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
|
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||
| id, err = cpm.Clients.Openstack.CreateNode(cpm.Kluster, cpm.Pool, userdata) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
|
|
||
| return id, nil | ||
| } | ||
|
|
||
| func (cpm *ConcretePoolManager) DeleteNode(id string) (err error) { | ||
| if err = cpm.Clients.Openstack.DeleteNode(cpm.Kluster, id); err != nil { | ||
| return err | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func (cpm *ConcretePoolManager) nodeIDs(nodes []openstack.Node) []string { | ||
| result := []string{} | ||
| for _, n := range nodes { | ||
| result = append(result, n.ID) | ||
| } | ||
| return result | ||
| } | ||
|
|
||
| func (cpm *ConcretePoolManager) starting(nodes []openstack.Node) int { | ||
| var count int = 0 | ||
| for _, n := range nodes { | ||
| if n.Starting() { | ||
| count = count + 1 | ||
| } | ||
| } | ||
| return count | ||
| } | ||
|
|
||
| func (cpm *ConcretePoolManager) stopping(nodes []openstack.Node) int { | ||
| var count int = 0 | ||
| for _, n := range nodes { | ||
| if n.Stopping() { | ||
| count = count + 1 | ||
| } | ||
| } | ||
| return count | ||
| } | ||
|
|
||
| func (cpm *ConcretePoolManager) running(nodes []openstack.Node) int { | ||
| var count int = 0 | ||
| for _, n := range nodes { | ||
| if n.Running() { | ||
| count = count + 1 | ||
| } | ||
| } | ||
| return count | ||
| } | ||
|
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||
| func (cpm *ConcretePoolManager) needed(nodes []openstack.Node) int { | ||
| needed := int(cpm.Pool.Size) - cpm.running(nodes) - cpm.starting(nodes) | ||
| if needed < 0 { | ||
| return 0 | ||
| } | ||
| return needed | ||
| } | ||
|
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| func (cpm ConcretePoolManager) unNeeded(nodes []openstack.Node) int { | ||
| unneeded := cpm.running(nodes) + cpm.starting(nodes) - int(cpm.Pool.Size) | ||
| if unneeded < 0 { | ||
| return 0 | ||
| } | ||
| return unneeded | ||
| } |