NGINX deployment with agent fails - looking for protocol keyword

Kubernetes log error message:

"failed to create typed patch object: .spec.template.spec.containers[name="nginx"].ports: element 0: associative list with keys has an element that omits key field "protocol" (and doesn't have default value)"

• Added the agent to existing Kubernetes cluster via project at https://gitlab.com/ENKI-portal/gke-enki-gitlab-agent
• Added NGINX manifest file example for testing
• NGINX does not deploy. Agent issues the move error message.

Full log entry:

{
  "insertId": "fypts6yu7sdzxcbp",
  "jsonPayload": {
    "name": "nginx-deployment",
    "type": "apply",
    "timestamp": "2021-09-09T18:06:25Z",
    "kind": "Deployment",
    "group": "apps",
    "eventType": "resourceFailed",
    "namespace": "gitlab-kubernetes-agent",
    "error": "failed to create typed patch object: .spec.template.spec.containers[name=\"nginx\"].ports: element 0: associative list with keys has an element that omits key field \"protocol\" (and doesn't have default value)"
  },
  "resource": {
    "type": "k8s_container",
    "labels": {
      "cluster_name": "enkiserver",
      "pod_name": "gitlab-agent-795865567c-s4rrw",
      "namespace_name": "gitlab-kubernetes-agent",
      "container_name": "agent",
      "location": "us-west1-a",
      "project_id": "pelagic-script-244221"
    }
  },
  "timestamp": "2021-09-09T18:06:25.500858703Z",
  "severity": "ERROR",
  "labels": {
    "k8s-pod/app": "gitlab-agent",
    "compute.googleapis.com/resource_name": "gke-enkiserver-default-pool-5035d795-i081",
    "k8s-pod/pod-template-hash": "795865567c"
  },
  "logName": "projects/pelagic-script-244221/logs/stderr",
  "receiveTimestamp": "2021-09-09T18:06:27.826947869Z"
}