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Showing content from https://github.com/ksonnet/ksonnet/issues/445 below:

max stack frames exceeded · Issue #445 · ksonnet/ksonnet · GitHub

This repository was archived by the owner on Sep 9, 2020. It is now read-only.

This repository was archived by the owner on Sep 9, 2020. It is now read-only.

Is this a BUG REPORT or FEATURE REQUEST?: BUG REPORT

/kind bug

What happened:
ks diff panics when I have an annotation set which uses a param.

Depending if the following line is present in my component.jsonnet, ks diff will panic:

      "service.beta.kubernetes.io/aws-load-balancer-ssl-cert": params.sslCert,

See below:

$ ks diff local:prod local:dev
ERROR unable to read /Users/jsuen/ws/ksonnet-examples/ks-stackframe-bug/environments/prod/main.jsonnet: RUNTIME ERROR: max stack frames exceeded.
	<builtin>	builtin function <operator+>
	<std>:1153:24-25	thunk from <function <anonymous>>
	<builtin>	builtin function <objectFieldsEx>
	/Users/jsuen/ws/ksonnet-examples/ks-stackframe-bug/environments/prod/params.libsonnet:12:54-92	object <anonymous>
	<builtin>	builtin function <flatMap>
	<builtin>	builtin function <$objectFlatMerge>
	<builtin>	builtin function <operator+>
	<std>:1153:24-25	thunk from <function <anonymous>>
	<builtin>	builtin function <objectFieldsEx>
	/Users/jsuen/ws/ksonnet-examples/ks-stackframe-bug/environments/prod/params.libsonnet:12:54-92	object <anonymous>
	...
	<builtin>	builtin function <$objectFlatMerge>
	<builtin>	builtin function <operator+>
	<std>:1153:24-25	thunk from <function <anonymous>>
	<builtin>	builtin function <objectFieldsEx>
	/Users/jsuen/ws/ksonnet-examples/ks-stackframe-bug/environments/prod/params.libsonnet:12:54-92	object <anonymous>
	<builtin>	builtin function <flatMap>
	<builtin>	builtin function <$objectFlatMerge>
	/Users/jsuen/ws/ksonnet-examples/ks-stackframe-bug/components/my-service.jsonnet:1:16-57	thunk <params> from <$>
	/Users/jsuen/ws/ksonnet-examples/ks-stackframe-bug/components/my-service.jsonnet:10:64-70	object <anonymous>
	During manifestation

$ cat components/my-service.jsonnet
local params = std.extVar("__ksonnet/params").components["my-service"];
{
  "kind": "Service",
  "apiVersion": "v1",
  "metadata": {
    "name": "my-service",
    "annotations": {
      "service.beta.kubernetes.io/aws-load-balancer-ssl-ports": "443",
      "service.beta.kubernetes.io/aws-load-balancer-backend-protocol": "https",
      "service.beta.kubernetes.io/aws-load-balancer-ssl-cert": params.sslCert,
    }
  },
  "spec": {
    "selector": {
      "app": "my-service"
    },
    "ports": [
      {
        "name": "https",
        "port": 443,
        "protocol": "TCP"
      }
    ],
    "type": "LoadBalancer",
  }

$ cat components/params.libsonnet
{
  global: {
    // User-defined global parameters; accessible to all component and environments, Ex:
    // replicas: 4,
  },
  components: {
    // NOTE: the values here are the default values, used only in the e2e/qa environments.
    // The prod environment overrides these values in environments/prod/params.libsonnet
    "my-service": {
      sslCert: "arn:aws:acm:us-west-2:111111111111:certificate/11111111-11111-1111-1111-1111111111",
    },
  },
}

What you expected to happen:
I should be able to diff two local environments

How to reproduce it (as minimally and precisely as possible):

I created a repo with a ksonnet app which can reproduce this here:
https://github.com/jessesuen/ksonnet-examples/tree/master/ks-stackframe-bug

Environment:

• ksonnet version (use ks version):
  Ksonnet built from tip of master earlier today

$ ks version
ksonnet version: 0.10.0-alpha.1
jsonnet version: v0.10.0
client-go version: 1.8

• Kubernetes version (use kubectl version):
  This shouldn't matter

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