exit with :1

### Describe the bug
I am trying portable kubevious on mac os and I got the following error:

[2021-06-28 23:24:14.895 +0000] ERROR (Context/1 on 0a69aca058db):
msg: {}
[Backend::_exitHandler] event: exit
[Backend::_exitHandler] cleanup
[Backend::_exitHandler] exiting with: 1

### To Reproduce
Steps to reproduce the behavior:
1- mac os big sur 11.4
2- docker desktop version

Client:
Cloud integration: 1.0.17
Version: 20.10.7
API version: 1.41
Go version: go1.16.4
Git commit: f0df350
Built: Wed Jun 2 11:56:22 2021
OS/Arch: darwin/amd64
Context: desktop-linux
Experimental: true

Server: Docker Engine - Community
Engine:
Version: 20.10.7
API version: 1.41 (minimum version 1.12)
Go version: go1.13.15
Git commit: b0f5bc3
Built: Wed Jun 2 11:54:58 2021
OS/Arch: linux/amd64
Experimental: false
containerd:
Version: 1.4.6
GitCommit: d71fcd7d8303cbf684402823e425e9dd2e99285d
runc:
Version: 1.0.0-rc95
GitCommit: b9ee9c6314599f1b4a7f497e1f1f856fe433d3b7
docker-init:
Version: 0.19.0
GitCommit: de40ad0

### Expected behavior
expect portable container up and running

### Screenshots

### Environment Details:
- Kubernetes Distribution/Version [e.g. GKE v1.13.12-gke.25, OpenShift 4.3]
- Local OS
- Browser [e.g. chrome, safari]
- Version [e.g. v0.7]

### Additional context
Add any other context about the problem here.

Start by reproducing the portable container failure on macOS with Docker Desktop and inspect the logged Backend::_exitHandler entry point. The issue is complete when the portable container starts and remains running without exiting with status 1.

Written by the indexing model from the issue text.