Initial version

Project structure, api, discovery service, docker.

internal/application/application.go

@@ -0,0 +1,42 @@
+package application
+
+import (
+	"context"
+	"fmt"
+	"sync"
+
+	"go.uber.org/zap"
+
+	"git.derfenix.pro/fenix/astontest/pkg/discovery"
+)
+
+type Application struct {
+	discoverySet discovery.DiscoverySet
+	log          *zap.Logger
+}
+
+func NewApplication(cfg *Config, log *zap.Logger) (*Application, error) {
+	discoveryOpts := []discovery.Option{discovery.WithBroadcastInterval(cfg.BroadcastInterval)}
+
+	if cfg.Debug {
+		discoveryOpts = append(discoveryOpts, discovery.WithDebug())
+	}
+
+	set, err := discovery.NewDiscoverySet(log.Named("discovery"), cfg.DiscoveryPort, discoveryOpts...)
+	if err != nil {
+		return nil, fmt.Errorf("new discovery set: %w", err)
+
+	}
+
+	return &Application{
+		discoverySet: set,
+		log:          log,
+	}, nil
+}
+
+func (a *Application) Start(ctx context.Context, wg *sync.WaitGroup) {
+	wg.Add(len(a.discoverySet))
+	for _, discover := range a.discoverySet {
+		go discover.Start(ctx, wg)
+	}
+}

internal/application/config.go

@@ -0,0 +1,25 @@
+package application
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/sethvargo/go-envconfig"
+)
+
+type Config struct {
+	Debug             bool          `env:"DEBUG"`
+	DiscoveryPort     uint16        `env:"DISCOVERY_PORT,default=4321"`
+	BroadcastInterval time.Duration `env:"BROADCAST_INTERVAL,default=5s"`
+}
+
+func NewConfig(ctx context.Context) (Config, error) {
+	cfg := Config{}
+
+	if err := envconfig.Process(ctx, &cfg); err != nil {
+		return Config{}, fmt.Errorf("process envs: %w", err)
+	}
+
+	return cfg, nil
+}