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# kubernetes
s
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g
I’m not seeing it in our API docs for some reason, but each resource includes a 
.get
method that can be used to read resource state. Something like 
k8s.networking.v1.Ingress.get('existingResource', 'axiomdb/myIngress')
should do the trick
b
Thanks Levi, but i'm looking at the go api here
same for Ingress.go
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func GetIngressList(ctx *pulumi.Context,
	name string, id pulumi.IDInput, state *IngressListState, opts ...pulumi.ResourceOption) (*IngressList, error) {
What's the ID here, I created the ingress controller using helm charts so i don't have a resource that has an ID on it
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// helmchart for ALB
	albResource, err := helm.NewChart(ctx, fmt.Sprintf("axiom-alb-charts-%s", w.targetEnv), helm.ChartArgs{
		Chart:     pulumi.String("aws-alb-ingress-controller"),
		Namespace: pulumi.String(namespace),
		FetchArgs: helm.FetchArgs{
			Repo: pulumi.String("<http://storage.googleapis.com/kubernetes-charts-incubator>"),
		},
		Values: pulumi.Map{
			"clusterName": w.eksCluster.Name,
			"awsVpcID":    w.vpNetwork.ID(),
			"awsRegion":   pulumi.String(os.Getenv(PrimaryRegion)),
		},
	}, pulumi.Provider(k8sProvider))
	if err != nil {
		return err
	}

	/*for _, r := range albResource.Resources {
	}*/

	ingress, err := networking.GetIngress(ctx, fmt.Sprintf("axiom-alb-charts-%s", w.targetEnv), albResource.Resources.ID(), nil)
	if err != nil {
		return err
	}
g
The id is of the form 
[namespace]/name
, where name is the name of the actual k8s resource that you would see with 
kubectl get ing
b
So i tried this
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ingress, err := networking.GetIngress(ctx, "axiomdb-ingress", pulumi.IDInput(pulumi.ID(fmt.Sprintf("%s/axiomdb-ingress", namespace))), nil)
	if err != nil {
		return err
	}
	ctx.Export("axiomDBIngress", ingress.Kind)
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Type                                         Name                                               Plan       Info
     pulumi:pulumi:Stack                          staging-axiom-cloud                                           1 error
 ~   ├─ aws:ec2:RouteTable                        axiom-cloud-private-subnet-2-routetable-staging-g  update     [diff: ~routes]
 ~   ├─ aws:ec2:RouteTable                        axiom-cloud-private-subnet-3-routetable-staging-g  update     [diff: ~routes]
 ~   ├─ aws:ec2:RouteTable                        axiom-cloud-private-subnet-1-routetable-staging-g  update     [diff: ~routes]
     ├─ kubernetes:<http://helm.sh/v3:Chart|helm.sh/v3:Chart>               axiomdb-charts-staging-g                                      
     │  └─ kubernetes:extensions/v1beta1:Ingress  axiomdb/axiomdb-ingress                                       1 warning
     └─ kubernetes:<http://networking.k8s.io/v1:Ingress|networking.k8s.io/v1:Ingress>   axiomdb-ingress                                               1 error
 
Diagnostics:
  kubernetes:extensions/v1beta1:Ingress (axiomdb/axiomdb-ingress):
    warning: extensions/v1beta1/Ingress is deprecated by <http://networking.k8s.io/v1beta1/Ingress|networking.k8s.io/v1beta1/Ingress> and not supported by Kubernetes v1.20+ clusters.
 
  kubernetes:<http://networking.k8s.io/v1:Ingress|networking.k8s.io/v1:Ingress> (axiomdb-ingress):
    error: Preview failed: resource 'axiomdb/axiomdb-ingress' does not exist
 
  pulumi:pulumi:Stack (staging-axiom-cloud):
    error: preview failed
 

ronoc@gunther:~/source/watchly/service/cloud/aws/staging$ kubectl get ing -A
NAMESPACE   NAME              HOSTS   ADDRESS                                                                           PORTS   AGE
axiomdb     axiomdb-ingress   *       <http://internal-2fd8be7b-axiomdb-axiomdbin-0378-1435062635.eu-west-2.elb.amazonaws.com|internal-2fd8be7b-axiomdb-axiomdbin-0378-1435062635.eu-west-2.elb.amazonaws.com>   80      2d9h
ronoc@gunther:~/source/watchly/service/cloud/aws/staging$
I'm a being special 😄 ?
g
Oops, just realized you were trying to get a property of a resource from a Helm chart deployed with Pulumi (I initially thought you meant you had deployed it separately with the Helm CLI). You should be able to use the 
GetResource
method on the Chart to get that.
b
and that should have the endpoint ?
g
Yeah. You’ll have to cast it to the Ingress type to access it though. That method returns 
AnyOutput
b
So 
GetResource(gvk, name, namespace string)
=> GetResource("ingress", "axiomdb-ingress", "axiom")
?
Sorry i'm no K8s expert
g
gvk would be 
networking/v1/Ingress
b
Thanks Levi
g
And from the output you pasted, I think the namespace is 
axiomdb
b
yep, i'm finding this API pretty obtuse, it doesn't like this caste
r := ingressChart.GetResource("networking/v1/Ingress", "axiomdb-ingress", "axiomdb") if ing, ok := r.(networking.Ingress); ok { }
is that what you meant re casting ?
g
b
Thanks Levi
g
We really need to add this to the API docs at some point
b
Documentation, the never ending task.
😉 1
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ingressIP := ingressChart.GetResource("networking/v1/Ingress", "axiomdb-ingress", "axiomdb").
		Apply(func(r interface{}) (interface{}, error) {
			svc := r.(*networking.Ingress)
			return svc.Status.LoadBalancer.Ingress()[0].Hostname, nil
		})
	ctx.Export("ingressIP", ingressIP)
Going by the docs this should work
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<https://raw.githubusercontent.com/pulumi/pulumi-kubernetes/master/sdk/go/kubernetes/core/v1/pulumiTypes.go>
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Type                 Name                 Plan     Info
     pulumi:pulumi:Stack  staging-axiom-cloud           1 error; 2 messages
 
Diagnostics:
  pulumi:pulumi:Stack (staging-axiom-cloud):
    # <http://axicode.axiom.co/watchmakers/watchly/service/cloud/aws|axicode.axiom.co/watchmakers/watchly/service/cloud/aws>
    ../eks.go:175:34: svc.Status.LoadBalancer.Ingress undefined (type func() "<http://github.com/pulumi/pulumi-kubernetes/sdk/v2/go/kubernetes/core/v1|github.com/pulumi/pulumi-kubernetes/sdk/v2/go/kubernetes/core/v1>".LoadBalancerStatusPtrOutput has no field or method Ingress)
 
    error: an unhandled error occurred: program exited with non-zero exit code: 2
Apologies for the link to Raw but Github refuses to give me the nice view, the method call i'm trying to use in question is on line 12596
OK sorry I was using the API incorrectly,but here goes
here is my code
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ingressIP := ingressChart.GetResource("networking/v1/Ingress", "axiomdb-ingress", "axiomdb").
		Apply(func(r interface{}) (interface{}, error) {
			svc := r.(*networking.Ingress)
			return svc.Status.LoadBalancer().Ingress().Index(<http://pulumi.Int|pulumi.Int>(0)).Hostname, nil
		})
	ctx.Export("ingressIP", ingressIP)
Stacktrace
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panic: interface conversion: interface {} is nil, not *v1.Ingress
    goroutine 316 [running]:
    <http://axicode.axiom.co/watchmakers/watchly/service/cloud/aws.(*worker).buildEks.func1(0x0|axicode.axiom.co/watchmakers/watchly/service/cloud/aws.(*worker).buildEks.func1(0x0>, 0x0, 0x79715c0, 0xc00008aa80, 0xc000501c10, 0x4155f3)
    	/home/ronoc/source/watchly/service/cloud/aws/eks.go:174 +0x10a
    <http://github.com/pulumi/pulumi/sdk/v2/go/pulumi.(*OutputState).Apply.func1(0x909b940|github.com/pulumi/pulumi/sdk/v2/go/pulumi.(*OutputState).Apply.func1(0x909b940>, 0xc000056110, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
    	/home/ronoc/.axiom-dev/gopath/pkg/mod/github.com/pulumi/pulumi/sdk/v2@v2.9.2/go/pulumi/types.go:305 +0x39
    reflect.Value.call(0x7930160, 0xc0005bccd0, 0x13, 0x8f07e20, 0x4, 0xc000501f60, 0x2, 0x2, 0xc0003a4ed8, 0x494add, ...)
    	/home/ronoc/.axiom-dev/go/src/reflect/value.go:460 +0x5f6
    reflect.Value.Call(0x7930160, 0xc0005bccd0, 0x13, 0xc0003a4f60, 0x2, 0x2, 0x0, 0x0, 0x1)
    	/home/ronoc/.axiom-dev/go/src/reflect/value.go:321 +0xb4
    <http://github.com/pulumi/pulumi/sdk/v2/go/pulumi.(*OutputState).ApplyTWithContext.func1(0xc00044a5b0|github.com/pulumi/pulumi/sdk/v2/go/pulumi.(*OutputState).ApplyTWithContext.func1(0xc00044a5b0>, 0x909b940, 0xc000056110, 0x90f1860, 0xc00044a620, 0x7930160, 0xc0005bccd0, 0x13)
    	/home/ronoc/.axiom-dev/gopath/pkg/mod/github.com/pulumi/pulumi/sdk/v2@v2.9.2/go/pulumi/types.go:392 +0x23f
    created by <http://github.com/pulumi/pulumi/sdk/v2/go/pulumi.(*OutputState).ApplyTWithContext|github.com/pulumi/pulumi/sdk/v2/go/pulumi.(*OutputState).ApplyTWithContext>
    	/home/ronoc/.axiom-dev/gopath/pkg/mod/github.com/pulumi/pulumi/sdk/v2@v2.9.2/go/pulumi/types.go:380 +0x1e0
    exit status 2
Basically this
svc := r.(*networking.Ingress)
r is nil
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panic: interface conversion: interface {} is nil, not *v1.Ingress
    goroutine 316 [running]:
g
Can you try changing this line?
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ingressIP := ingressChart.GetResource("<http://networking.k8s.io/v1/Ingress|networking.k8s.io/v1/Ingress>", "axiomdb-ingress", "axiomdb").
It looks like the id field for the Go SDK is using the fully-qualified Group name (i.e., 
<http://networking.k8s.io|networking.k8s.io>
rather than 
networking
)
b
Same again
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error: an unhandled error occurred: program exited with non-zero exit code: 1
 
    panic: interface conversion: interface {} is nil, not *v1.Ingress
I deleted the chart, and tried to redeploy it to ensure it wasn't some stateful issue
same again
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