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options.go
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options.go
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package consul
import (
"context"
"time"
consul "github.com/hashicorp/consul/api"
"github.com/micro/go-micro/registry"
)
// Connect specifies services should be registered as Consul Connect services
func Connect() registry.Option {
return func(o *registry.Options) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, "consul_connect", true)
}
}
func Config(c *consul.Config) registry.Option {
return func(o *registry.Options) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, "consul_config", c)
}
}
// AllowStale sets whether any Consul server (non-leader) can service
// a read. This allows for lower latency and higher throughput
// at the cost of potentially stale data.
// Works similar to Consul DNS Config option [1].
// Defaults to true.
//
// [1] https://www.consul.io/docs/agent/options.html#allow_stale
//
func AllowStale(v bool) registry.Option {
return func(o *registry.Options) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, "consul_allow_stale", v)
}
}
// QueryOptions specifies the QueryOptions to be used when calling
// Consul. See `Consul API` for more information [1].
//
// [1] https://godoc.org/github.com/hashicorp/consul/api#QueryOptions
//
func QueryOptions(q *consul.QueryOptions) registry.Option {
return func(o *registry.Options) {
if q == nil {
return
}
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, "consul_query_options", q)
}
}
//
// TCPCheck will tell the service provider to check the service address
// and port every `t` interval. It will enabled only if `t` is greater than 0.
// See `TCP + Interval` for more information [1].
//
// [1] https://www.consul.io/docs/agent/checks.html
//
func TCPCheck(t time.Duration) registry.Option {
return func(o *registry.Options) {
if t <= time.Duration(0) {
return
}
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, "consul_tcp_check", t)
}
}