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main.go
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main.go
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package main
import (
"bytes"
"encoding/json"
"flag"
"fmt"
"io"
"log"
"net/http"
"time"
)
type RenderStreamLayersResponse struct {
Status struct {
Code int `json:"code"`
Message string `json:"message"`
Details []struct {
TypeURL string `json:"type_url"`
Value string `json:"value"`
} `json:"details"`
} `json:"status"`
Result []struct {
UID string `json:"uid"`
Name string `json:"name"`
} `json:"result"`
}
type RenderStreamLayerStatusResponse struct {
Status struct {
Code int `json:"code"`
Message string `json:"message"`
Details []struct {
TypeURL string `json:"type_url"`
Value string `json:"value"`
} `json:"details"`
} `json:"status"`
Result struct {
Reference struct {
TNow float64 `json:"tNow"`
} `json:"reference"`
Workload struct {
UID string `json:"uid"`
Name string `json:"name"`
Instances []struct {
MachineUID string `json:"machineUid"`
MachineName string `json:"machineName"`
State string `json:"state"`
HealthMessage string `json:"healthMessage"`
HealthDetails string `json:"healthDetails"`
} `json:"instances"`
} `json:"workload"`
Streams []struct {
UID string `json:"uid"`
Name string `json:"name"`
SourceMachine string `json:"sourceMachine"`
ReceiverMachine string `json:"receiverMachine"`
Status struct {
SubscriptionWanted bool `json:"subscriptionWanted"`
SubscribeSuccessful bool `json:"subscribeSuccessful"`
TLastDropped float64 `json:"tLastDropped"`
TLastError float64 `json:"tLastError"`
LastErrorMessage string `json:"lastErrorMessage"`
} `json:"status"`
StatusString string `json:"statusString"`
} `json:"streams"`
AssetErrors []string `json:"assetErrors"`
} `json:"result"`
}
type RenderStreamRestartLayerRequest struct {
Layers []struct {
Uid string `json:"uid"`
Name string `json:"name"`
} `json:"layers"`
}
type RenderStreamReader struct {
server string
}
func (r *RenderStreamReader) GetRenderStreamLayerByName(name string) (string, error) {
res, err := http.Get(fmt.Sprintf("http://%s/api/session/renderstream/layers", r.server))
if err != nil {
return "", err
}
defer res.Body.Close()
var response RenderStreamLayersResponse
b, err := io.ReadAll(res.Body)
if err != nil {
return "", err
}
err = json.Unmarshal(b, &response)
if err != nil {
return "", err
}
for _, layer := range response.Result {
if layer.Name == name {
return layer.UID, nil
}
}
return "", fmt.Errorf("layer not found")
}
func (r *RenderStreamReader) GetLayerStatus(layerUID string) (string, error) {
res, err := http.Get(fmt.Sprintf("http://%s/api/session/renderstream/layerstatus?uid=%s", r.server, layerUID))
if err != nil {
return "", err
}
defer res.Body.Close()
var response RenderStreamLayerStatusResponse
b, err := io.ReadAll(res.Body)
if err != nil {
return "", err
}
err = json.Unmarshal(b, &response)
if err != nil {
return "", err
}
if len(response.Result.Workload.Instances) == 0 {
return "stopped", nil
}
return response.Result.Workload.Instances[0].State, nil
}
func (r *RenderStreamReader) RestartRenderStreamLayer(layerUID string, name string) error {
body := RenderStreamRestartLayerRequest{
Layers: []struct {
Uid string `json:"uid"`
Name string `json:"name"`
}{
{
Uid: layerUID,
Name: name,
},
},
}
data, err := json.Marshal(body)
if err != nil {
return err
}
reader := bytes.NewReader(data)
resp, err := http.Post(fmt.Sprintf("http://%s/api/session/renderstream/startlayers", r.server), "application/json", reader)
if err != nil {
return err
}
defer resp.Body.Close()
data, err = io.ReadAll(resp.Body)
if err != nil {
return err
}
response := struct {
Status struct {
Code int `json:"code"`
Message string `json:"message"`
Details []struct {
TypeURL string `json:"type_url"`
Value string `json:"value"`
} `json:"details"`
} `json:"status"`
}{}
err = json.Unmarshal(data, &response)
if err != nil {
return err
}
return nil
}
func main() {
server := flag.String("server", "localhost", "The server to connect to")
layer := flag.String("layer", "Rs", "The layer to restart")
timeout := flag.Int("timeout", 5, "The timeout in seconds")
flag.Parse()
if server == nil || layer == nil || timeout == nil {
log.Println("Invalid arguments")
return
}
reader := RenderStreamReader{
server: *server,
}
layerUID, err := reader.GetRenderStreamLayerByName(*layer)
if err != nil {
log.Printf("Error Getting Layers: %s", err)
return
}
for {
status, err := reader.GetLayerStatus(layerUID)
if err != nil {
log.Printf("Error Getting Status: %s\n", err)
return
}
if status == "RUNNING" || status == "LAUNCHING" || status == "READY" || status == "STARTING" {
log.Printf("Layer is %s, waiting 5 seconds\n", status)
time.Sleep(time.Duration(*timeout) * time.Second)
continue
}
err = reader.RestartRenderStreamLayer(layerUID, *layer)
if err != nil {
fmt.Println(err)
return
}
log.Println("Layer restarted")
time.Sleep(time.Duration(*timeout) * time.Second)
}
}