108 lines
3.6 KiB
Go
108 lines
3.6 KiB
Go
package pwd
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import (
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"io"
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"time"
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"github.com/play-with-docker/play-with-docker/docker"
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"github.com/play-with-docker/play-with-docker/event"
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"github.com/play-with-docker/play-with-docker/provider"
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"github.com/play-with-docker/play-with-docker/pwd/types"
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"github.com/play-with-docker/play-with-docker/storage"
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"github.com/prometheus/client_golang/prometheus"
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)
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var (
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sessionsGauge = prometheus.NewGauge(prometheus.GaugeOpts{
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Name: "sessions",
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Help: "Sessions",
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})
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clientsGauge = prometheus.NewGauge(prometheus.GaugeOpts{
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Name: "clients",
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Help: "Clients",
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})
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instancesGauge = prometheus.NewGauge(prometheus.GaugeOpts{
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Name: "instances",
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Help: "Instances",
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})
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latencyHistogramVec = prometheus.NewHistogramVec(prometheus.HistogramOpts{
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Name: "pwd_action_duration_ms",
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Help: "How long it took to process a specific action, in a specific host",
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Buckets: []float64{300, 1200, 5000},
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}, []string{"action"})
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)
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func observeAction(action string, start time.Time) {
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latencyHistogramVec.WithLabelValues(action).Observe(float64(time.Since(start).Nanoseconds()) / 1000000)
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}
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func init() {
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prometheus.MustRegister(sessionsGauge)
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prometheus.MustRegister(clientsGauge)
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prometheus.MustRegister(instancesGauge)
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prometheus.MustRegister(latencyHistogramVec)
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}
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type pwd struct {
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sessionProvider provider.SessionProvider
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tasks SchedulerApi
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event event.EventApi
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storage storage.StorageApi
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clientCount int32
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}
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type PWDApi interface {
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SessionNew(duration time.Duration, stack string, stackName, imageName string) (*types.Session, error)
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SessionClose(session *types.Session) error
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SessionGetSmallestViewPort(session *types.Session) types.ViewPort
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SessionDeployStack(session *types.Session) error
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SessionGet(id string) *types.Session
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SessionSetup(session *types.Session, conf SessionSetupConf) error
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InstanceNew(session *types.Session, conf InstanceConfig) (*types.Instance, error)
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InstanceResizeTerminal(instance *types.Instance, cols, rows uint) error
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InstanceAttachTerminal(instance *types.Instance) error
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InstanceUploadFromUrl(instance *types.Instance, fileName, dest, url string) error
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InstanceUploadFromReader(instance *types.Instance, fileName, dest string, reader io.Reader) error
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InstanceGet(session *types.Session, name string) *types.Instance
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// TODO remove this function when we add the session prefix to the PWD url
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InstanceFindByIP(ip string) *types.Instance
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InstanceFindByAlias(sessionPrefix, alias string) *types.Instance
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InstanceFindByIPAndSession(sessionPrefix, ip string) *types.Instance
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InstanceDelete(session *types.Session, instance *types.Instance) error
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InstanceWriteToTerminal(sessionId, instanceName string, data string)
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InstanceAllowedImages() []string
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InstanceExec(instance *types.Instance, cmd []string) (int, error)
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ClientNew(id string, session *types.Session) *types.Client
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ClientResizeViewPort(client *types.Client, cols, rows uint)
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ClientClose(client *types.Client)
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ClientCount() int
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}
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func NewPWD(sp provider.SessionProvider, t SchedulerApi, e event.EventApi, s storage.StorageApi) *pwd {
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return &pwd{sessionProvider: sp, tasks: t, event: e, storage: s}
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}
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func (p *pwd) docker(sessionId string) docker.DockerApi {
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d, err := p.sessionProvider.GetDocker(sessionId)
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if err != nil {
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panic("Should not have got here. Session always need to be validated before calling this.")
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}
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return d
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}
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func (p *pwd) setGauges() {
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s, _ := p.storage.SessionCount()
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ses := float64(s)
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i, _ := p.storage.InstanceCount()
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ins := float64(i)
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c := p.ClientCount()
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cli := float64(c)
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clientsGauge.Set(cli)
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instancesGauge.Set(ins)
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sessionsGauge.Set(ses)
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}
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