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feat: Add simple logs viewer for targets/results
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,106 @@ | ||
| package webui | ||
|
|
||
| import ( | ||
| "bufio" | ||
| "encoding/json" | ||
| "github.com/gin-gonic/gin" | ||
| "io" | ||
| corev1 "k8s.io/api/core/v1" | ||
| "k8s.io/apimachinery/pkg/api/errors" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "net/http" | ||
| "nhooyr.io/websocket" | ||
| ) | ||
|
|
||
| func (s *CommandResultsServer) logsHandler(gctx *gin.Context) { | ||
| args := struct { | ||
| KluctlDeploymentParam | ||
| ReconcileId string `form:"reconcileId"` | ||
| }{} | ||
| err := gctx.BindQuery(&args) | ||
| if err != nil { | ||
| _ = gctx.AbortWithError(http.StatusBadRequest, err) | ||
| return | ||
| } | ||
|
|
||
| conn, err := acceptWebsocket(gctx) | ||
| if err != nil { | ||
| return | ||
| } | ||
| defer conn.Close(websocket.StatusInternalError, "the sky is falling") | ||
|
|
||
| ctx := conn.CloseRead(gctx) | ||
|
|
||
| controllerNamespace := "kluctl-system" | ||
| pods, err := s.serverCoreV1Client.Pods(controllerNamespace).List(s.ctx, metav1.ListOptions{ | ||
| LabelSelector: "control-plane=kluctl-controller", | ||
| }) | ||
| if err != nil { | ||
| _ = gctx.AbortWithError(http.StatusBadRequest, err) | ||
| return | ||
| } | ||
|
|
||
| var streams []io.ReadCloser | ||
| defer func() { | ||
| for _, s := range streams { | ||
| _ = s.Close() | ||
| } | ||
| }() | ||
|
|
||
| lineCh := make(chan string) | ||
|
|
||
| for _, pod := range pods.Items { | ||
| since := int64(60 * 5) | ||
| rc, err := s.serverCoreV1Client.Pods("kluctl-system").GetLogs(pod.Name, &corev1.PodLogOptions{ | ||
| Follow: true, | ||
| SinceSeconds: &since, | ||
| }).Stream(s.ctx) | ||
| if err != nil { | ||
| if errors.IsNotFound(err) { | ||
| continue | ||
| } | ||
| _ = gctx.AbortWithError(http.StatusBadRequest, err) | ||
| return | ||
| } | ||
| streams = append(streams, rc) | ||
| } | ||
|
|
||
| for _, s := range streams { | ||
| s := s | ||
| go func() { | ||
| sc := bufio.NewScanner(s) | ||
| for sc.Scan() { | ||
| l := sc.Text() | ||
| lineCh <- l | ||
| } | ||
| }() | ||
| } | ||
|
|
||
| for l := range lineCh { | ||
| var j map[string]any | ||
| err = json.Unmarshal([]byte(l), &j) | ||
| if err != nil { | ||
| continue | ||
| } | ||
|
|
||
| name := j["name"] | ||
| namespace := j["namespace"] | ||
|
|
||
| if args.Name != "" && name != args.Name { | ||
| continue | ||
| } | ||
| if args.Namespace != "" && namespace != args.Namespace { | ||
| continue | ||
| } | ||
|
|
||
| rid := j["reconcileID"] | ||
| if args.ReconcileId != "" && rid != args.ReconcileId { | ||
| continue | ||
| } | ||
|
|
||
| err = conn.Write(ctx, websocket.MessageText, []byte(l)) | ||
| if err != nil { | ||
| return | ||
| } | ||
| } | ||
| } |
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