Wrong output when port is missing

[ngtuna]

The current convert function is not working correctly. When port is missing, objects are converted in init state.

$ cat docker-compose.yml.tuna 
web:
  image: tuna/docker-counter23
  environment:
    - version=1.0
  links:
    - redis
redis:
  image: redis:3.0
  ports:
    - "6379"

$ kompose convert --file docker-compose.yml.tuna
WARN[0000] [web] Service cannot be created because of missing port. 
INFO[0000] file "web-deployment.json" created           
INFO[0000] file "redis-deployment.json" created         
INFO[0000] file "redis-service.json" created   

$ cat web-deployment.json 
{
  "kind": "Deployment",
  "apiVersion": "extensions/v1beta1",
  "metadata": {
    "name": "web",
    "creationTimestamp": null
  },
  "spec": {
    "replicas": 1,
    "template": {
      "metadata": {
        "creationTimestamp": null
      },
      "spec": {
        "volumes": null,
        "containers": [
          {
            "name": "web",
            "image": "tuna/docker-counter23",
            "resources": {},
            "imagePullPolicy": ""
          }
        ],
        "serviceAccountName": ""
      }
    },
    "strategy": {}
  },
  "status": {}
}

environment is missing in the deployment web.

The problem came from this line:
https://github.com/skippbox/kompose/blob/master/pkg/transformer/kubernetes/kubernetes.go#L243

If ports not provided in configuration we will not make service, but we will also not update objects.