refactor docker api code, deps upgrade

internal/api/v1/dockerapi/containers.go

@@ -4,14 +4,9 @@ import (
 	"context"
 	"net/http"
 	"sort"
-	"time"
 
-	"github.com/coder/websocket"
-	"github.com/coder/websocket/wsjson"
 	"github.com/docker/docker/api/types/container"
 	"github.com/yusing/go-proxy/internal/gperr"
-	"github.com/yusing/go-proxy/internal/net/gphttp/gpwebsocket"
-	"github.com/yusing/go-proxy/internal/net/gphttp/httpheaders"
 )
 
 type Container struct {
@@ -23,30 +18,10 @@ type Container struct {
 }
 
 func Containers(w http.ResponseWriter, r *http.Request) {
-	if httpheaders.IsWebsocket(r.Header) {
-		gpwebsocket.Periodic(w, r, 5*time.Second, func(conn *websocket.Conn) error {
-			containers, err := listContainers(r.Context())
-			if err != nil {
-				return err
-			}
-			return wsjson.Write(r.Context(), conn, containers)
-		})
-	} else {
-		containers, err := listContainers(r.Context())
-		handleResult(w, err, containers)
-	}
+	serveHTTP[Container, []Container](w, r, GetContainers)
 }
 
-func listContainers(ctx context.Context) ([]Container, error) {
-	ctx, cancel := context.WithTimeout(ctx, reqTimeout)
-	defer cancel()
-
-	dockerClients, err := getDockerClients()
-	if err != nil {
-		return nil, err
-	}
-	defer closeAllClients(dockerClients)
-
+func GetContainers(ctx context.Context, dockerClients DockerClients) ([]Container, gperr.Error) {
 	errs := gperr.NewBuilder("failed to get containers")
 	containers := make([]Container, 0)
 	for server, dockerClient := range dockerClients {