52 lines
1.4 KiB
Go
52 lines
1.4 KiB
Go
package zk
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import "github.com/go-kit/kit/log"
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// Registrar registers service instance liveness information to ZooKeeper.
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type Registrar struct {
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client Client
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service Service
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logger log.Logger
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}
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// Service holds the root path, service name and instance identifying data you
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// want to publish to ZooKeeper.
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type Service struct {
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Path string // discovery namespace, example: /myorganization/myplatform/
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Name string // service name, example: addscv
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Data []byte // instance data to store for discovery, example: 10.0.2.10:80
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node string // Client will record the ephemeral node name so we can deregister
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}
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// NewRegistrar returns a ZooKeeper Registrar acting on the provided catalog
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// registration.
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func NewRegistrar(client Client, service Service, logger log.Logger) *Registrar {
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return &Registrar{
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client: client,
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service: service,
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logger: log.NewContext(logger).With(
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"service", service.Name,
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"path", service.Path,
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"data", string(service.Data),
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),
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}
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}
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// Register implements sd.Registrar interface.
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func (r *Registrar) Register() {
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if err := r.client.Register(&r.service); err != nil {
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r.logger.Log("err", err)
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} else {
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r.logger.Log("action", "register")
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}
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}
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// Deregister implements sd.Registrar interface.
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func (r *Registrar) Deregister() {
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if err := r.client.Deregister(&r.service); err != nil {
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r.logger.Log("err", err)
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} else {
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r.logger.Log("action", "deregister")
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}
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}
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