add NewServiceMetadata

README.md

@@ -1,13 +1,13 @@
-# plugis3-service
+# plugisservice
 
-plugis3-service is a package to write plugis3 services in Go.
+plugisservice is a package to write plugis3 services in Go.
 
 A Plugis3 service is a NATS micro service with some specific properties that must implement the `PlugisServiceIntf` interface.
 
 ## NATS Micro PlugisServiceIntf Integration
 
 For NATS services, see:
-- [Building a PlugisServiceIntf](https://docs.nats.io/using-nats/nex/getting-started/building-service)
+- [Building a Service](https://docs.nats.io/using-nats/nex/getting-started/building-service)
 - [NATS micro on Github](https://github.com/nats-io/nats.go/tree/main/micro)
 
 # Files

pkg/systeminfo/systeminfo.go

@@ -0,0 +1,44 @@
+package systeminfo
+
+import (
+	"fmt"
+	"github.com/telemac/goutils/net"
+	"os"
+	"runtime"
+)
+
+type SystemInfo struct {
+	Platform   string `json:"platform"` // ex: linux/amd64
+	Docker     bool   `json:"docker"`   // true if runnint in docker container
+	Hostname   string `json:"hostname"`
+	MacAddress string `json:"mac_address"`
+}
+
+func NewSystemInfo() (*SystemInfo, error) {
+	var systemInfo SystemInfo
+	err := systemInfo.Fill()
+	return &systemInfo, err
+}
+
+func (si *SystemInfo) Fill() error {
+	var err error
+	si.Platform = runtime.GOOS + "/" + runtime.GOARCH
+	si.Docker = isRunningInDockerContainer()
+	si.Hostname, err = os.Hostname()
+	if err != nil {
+		return fmt.Errorf("unable to get hostname: %v", err)
+	}
+	si.MacAddress, err = net.GetMACAddress()
+	if err != nil {
+		return fmt.Errorf("unable to get MAC address: %v", err)
+	}
+	return nil
+}
+
+// isRunningInDockerContainer
+func isRunningInDockerContainer() bool {
+	if _, err := os.Stat("/.dockerenv"); err == nil {
+		return true
+	}
+	return false
+}

plugis.go

@@ -13,7 +13,7 @@ import (
 	"github.com/telemac/goutils/net"
 	"github.com/telemac/goutils/task"
 
-	"github.com/go-viper/mapstructure/v2"
+	//"github.com/go-viper/mapstructure/v2"
 	"github.com/nats-io/nats.go"
 	"github.com/synadia-io/orbit.go/natsext"
 )
@@ -182,7 +182,7 @@ func isRunningInDockerContainer() bool {
 }
 
 // NewServiceMetadata creates and fills a ServiceMetadata structure
-func NewServiceMetadata(prefix string, startedAt time.Time) (Metadata, error) {
+func NewServiceMetadata(prefix string, startedAt time.Time) (*ServiceMetadata, error) {
 	var err error
 	var meta ServiceMetadata
 	meta.Prefix = prefix
@@ -201,8 +201,5 @@ func NewServiceMetadata(prefix string, startedAt time.Time) (Metadata, error) {
 		return nil, err
 	}
 
-	// Convert struct to map using mapstructure
-	var result Metadata
-	err = mapstructure.Decode(meta, &result)
-	return result, err
+	return &meta, nil
 }