in the

pulumi-eks

if i have defined a

NodeAmiId

, but change that later, but i want existing clusters to ignore that. I would use pulumi.ignoreChanges, but it doesnt seem to work. ive tried all these

pulumi.IgnoreChanges([]string{"nodeAmiId", "imageId", "NodeAmiId", "nodeGroupOptions.amiId", "launchTemplate.imageId"})

But it still wants to change

~ aws:ec2/launchTemplate:LaunchTemplate: (update)
                [id=lt-091964d05fd3c43a2]
                [urn=urn:pulumi:euc3::aws-cluster-0-stage::fiveten:eksspotcluster:EksSpotClusterComponent$eks:index:Cluster$aws:ec2/launchTemplate:LaunchTemplate::cluster-0-stage-3-eks-cluster-launchTemplate]
                [provider=urn:pulumi:euc3::aws-cluster-0-stage::pulumi:providers:aws::default_6_66_1::361cbfc3-4b21-41dc-98c2-ff7641c55608]
              ~ imageId: "ami-08637badb83cf6722" => "ami-09cf35b5ff1dee8ed"

ignoreChanges

behaves differently for component resources:

The

ignoreChanges

resource option does not apply to inputs to component resources. If

ignoreChanges

is passed to a component resource, it is up to that component’s implementation to decide what if anything it will do.

So you'd have to figure out if the resource options you provide are passed down to the launch template, and how exactly that happens. You can see the implementation of

Cluster

here: https://github.com/pulumi/pulumi-eks/blob/master/nodejs/eks/cluster/cluster.ts

hm, that file is not the same as this file https://github.com/pulumi/pulumi-eks/blob/master/sdk/go/eks/cluster.go ? or is it

No, it's not the same. What you link is the SDK, and I linked the implementation. Your file just contains the Go interface.

so the implementation is always typescript?

You can use the

transforms

resource option on the component to set the

ignoreChanges

on the launch template: https://www.pulumi.com/docs/iac/concepts/options/transforms/

It's not always TypeScript, I think. I've never looked into the precise mechanics of how it works, but there's something called https://www.pulumi.com/crosscode/, in particular https://github.com/pulumi/pulumi/tree/master/pkg/codegen, that allows to translate between languages. Packages like

pulumi-eks

are usually implemented in one language, and then made available in all others.

And yes, the awsx, apigateway and eks component providers are using Node.js and you can interact with them using your favorite language. Usually the repos have a root level directory called

sdk

that houses the sdks and then the actual provider implementation is in a different directory (but there's no common patterns for that). Kilian is right that for eks it's the

nodejs

directory

seems this worked nice

func(_ context.Context, args *pulumi.ResourceTransformArgs) *pulumi.ResourceTransformResult {
		if args.Type == "aws:ec2/launchTemplate:LaunchTemplate" {
			args.Opts.IgnoreChanges = append(args.Opts.IgnoreChanges, "imageId")
			return &pulumi.ResourceTransformResult{
				Props: args.Props,
				Opts:  args.Opts,
			}
		}
		return nil
	}