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flag-registry.go
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flag-registry.go
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package cmd
import (
"github.com/spf13/pflag"
"github.com/spf13/viper"
"github.com/pydio/cells/common/log"
"github.com/pydio/cells/common/micro/broker/http"
"github.com/pydio/cells/common/micro/broker/nats"
"github.com/pydio/cells/common/micro/registry"
"github.com/pydio/cells/common/micro/transport/grpc"
cells_registry "github.com/pydio/cells/common/registry"
)
// addRegistryFlags registers necessary flags to connect to the registry
func addRegistryFlags(flags *pflag.FlagSet, hideAll ...bool) {
flags.String("registry", "nats", "Registry used to manage services (currently nats only)")
flags.String("registry_address", ":4222", "Registry connection address")
flags.String("registry_cluster_address", "", "Registry cluster address")
flags.String("registry_cluster_routes", "", "Registry cluster routes")
flags.String("broker", "nats", "Pub/sub service for events between services (currently nats only)")
flags.String("broker_address", ":4222", "Nats broker port")
flags.String("transport", "grpc", "Transport protocol for RPC")
flags.String("transport_address", ":4222", "Transport protocol port")
flags.MarkHidden("registry")
if len(hideAll) > 0 && hideAll[0] {
flags.MarkHidden("registry_address")
flags.MarkHidden("registry_cluster_address")
flags.MarkHidden("registry_cluster_routes")
flags.MarkHidden("broker")
flags.MarkHidden("broker_address")
flags.MarkHidden("transport")
flags.MarkHidden("transport_address")
}
}
// bindViperFlags visits all flags in FlagSet and bind their key to the corresponding viper variable
func bindViperFlags(flags *pflag.FlagSet, replaceKeys map[string]string) {
flags.VisitAll(func(flag *pflag.Flag) {
key := flag.Name
if replace, ok := replaceKeys[flag.Name]; ok {
key = replace
}
viper.BindPFlag(key, flag)
})
}
// handleRegistry looks up for "registry" key in viper and starts the registry
func handleRegistry() {
switch viper.Get("registry") {
case "nats":
registry.EnableNats()
// case "etcd":
// registry.EnableEtcd()
default:
log.Fatal("registry not supported - currently only nats is supported")
}
}
// handleBroker looks up for "broker" key in viper and starts the registry
func handleBroker() {
switch viper.Get("broker") {
case "nats":
nats.Enable()
case "http":
http.Enable()
default:
log.Fatal("broker not supported")
}
}
// handleTransport looks up for "transport" key in viper and starts the registry
func handleTransport() {
switch viper.Get("transport") {
case "grpc":
grpc.Enable()
default:
log.Fatal("transport not supported")
}
}
// initServices initializes the Cells internal registry (different from micro registry)
func initServices() {
cells_registry.Default.BeforeInit()
cells_registry.Init()
cells_registry.Default.AfterInit()
}