feat(global): add container exec support

api/exec.go

@@ -0,0 +1,24 @@
+package main
+
+import (
+	"golang.org/x/net/websocket"
+	"log"
+)
+
+// execContainer is used to create a websocket communication with an exec instance
+func (a *api) execContainer(ws *websocket.Conn) {
+	qry := ws.Request().URL.Query()
+	execID := qry.Get("id")
+
+	var host string
+	if a.endpoint.Scheme == "tcp" {
+		host = a.endpoint.Host
+	} else if a.endpoint.Scheme == "unix" {
+		host = a.endpoint.Path
+	}
+
+	if err := hijack(host, a.endpoint.Scheme, "POST", "/exec/"+execID+"/start", a.tlsConfig, true, ws, ws, ws, nil, nil); err != nil {
+		log.Fatalf("error during hijack: %s", err)
+		return
+	}
+}