deploy.json

{
    "kind": "Deployment",
    "apiVersion": "apps/v1",
    "metadata": {
        "name": "jjo-nginx",
        "creationTimestamp": null,
        "labels": {
            "app": "jjo-nginx"
        }
    },
    "spec": {
        "replicas": 1,
        "selector": {
            "matchLabels": {
                "app": "jjo-nginx"
            }
        },
        "template": {
            "metadata": {
                "creationTimestamp": null,
                "labels": {
                    "app": "jjo-nginx"
                }
            },
            "spec": {
                "containers": [
                    {
                        "name": "nginx",
                        "image": "nginx",
                        "resources": {}
                    }
                ]
            }
        },
        "strategy": {}
    },
    "status": {}
}

kube.libsonnet

{
  namespace:: 'default',

  object(apiVersion, kind, name):: {
    kind: kind,
    apiVersion: apiVersion,
    metadata: {
      name: name,
      labels: {
        'app.kubernetes.io/name': name,
        assert std.objectHas(self, "team"): "team label must be specified",
      },
    },
  },
  Resources(cpu, mem):: {
    requests: {
      cpu: cpu,
      memory: mem,
    },
    limits: {
      cpu: cpu,
      memory: mem,
    },
  },

  Deploy(name, image):: $.object('apps/v1', 'Deployment', name) {
    metadata+: {
      namespace: $.namespace,
      labels+: {
        app: name,
      },
    },
    spec: {
      replicas: 1,
      selector: {
        matchLabels: {
          app: name,
        },
      },
      template: {
        metadata: {
          labels: {
            app: name,
          },
        },
        spec: {
          containers_:: {
            default: {
              name: name,
              image: image,
              resources: {},
            },
          },
          containers: [self.containers_[k] for k in std.objectFields(self.containers_)],
        },
      },
      strategy: {},
    },
    status: {},
  },
  Service(name):: {
  },
}

stack.jsonnet

local kube = import "kube.libsonnet";

//std.manifestYamlStream([
kube.Deploy('jjo-nginx', 'nginx') {
  metadata+: {
    labels+: {
      team: 'sre',
    },
  },
  spec+: {
    replicas: 3,
    template+: {
      spec+: {
        //containers[0]+: { resources: kube.Resources(1, '10Mi'),
        containers_+: {
          default+: {
            resources+: kube.Resources(1, '10Mi'),
          },
        },
      },
    },
  },
}
//  kube.Deploy('foo-bar', 'node-exporter'),
//])