Enable debugger support for containers (#399)

Author: jankeromnes

lib/docker.js

@@ -192,7 +192,10 @@ exports.runContainer = function (parameters, callback) {
     const options = {
       Image: image,
       ExposedPorts: {},
-      HostConfig: { PortBindings: {} }
+      HostConfig: {
+        CapAdd: ['SYS_PTRACE'],
+        PortBindings: {},
+      }
     };
 
     for (const port in ports) {