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Sample project to call Kubernetes API of an Amazon EKS cluster from AWS Lambda

License: Apache License 2.0

Makefile 19.86% Go 80.14%

eks lambda

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mitchybawesome dalbhanj cmanikandan undeadops stafot kornelbicskei aavi raghujirao ashmanpan gopalsi zhangqiangpei sunholee0127

eksutil's Issues

runtime error, while cluster is found.

{
  "errorMessage": "runtime error: invalid memory address or nil pointer dereference",
  "errorType": "errorString",
  "stackTrace": [
    {
      "path": "lambda-eks-sample/vendor/github.com/aws/aws-lambda-go/lambda/function.go",
      "line": 27,
      "label": "(*Function).Invoke.func1"
    },
    {
      "path": "runtime/asm_amd64.s",
      "line": 573,
      "label": "call32"
    },
    {
      "path": "runtime/panic.go",
      "line": 502,
      "label": "gopanic"
    },
    {
      "path": "runtime/panic.go",
      "line": 63,
      "label": "panicmem"
    },
    {
      "path": "runtime/signal_unix.go",
      "line": 388,
      "label": "sigpanic"
    },
    {
      "path": "lambda-eks-sample/main.go",
      "line": 109,
      "label": "(*ClusterConfig).loadConfig"
    },
    {
      "path": "lambda-eks-sample/main.go",
      "line": 51,
      "label": "handler"
    },
    {
      "path": "runtime/asm_amd64.s",
      "line": 577,
      "label": "call512"
    },
    {
      "path": "reflect/value.go",
      "line": 447,
      "label": "Value.call"
    },
    {
      "path": "reflect/value.go",
      "line": 308,
      "label": "Value.Call"
    },
    {
      "path": "lambda-eks-sample/vendor/github.com/aws/aws-lambda-go/lambda/handler.go",
      "line": 111,
      "label": "newHandler.func1"
    },
    {
      "path": "lambda-eks-sample/vendor/github.com/aws/aws-lambda-go/lambda/handler.go",
      "line": 22,
      "label": "lambdaHandler.Invoke"
    },
    {
      "path": "lambda-eks-sample/vendor/github.com/aws/aws-lambda-go/lambda/function.go",
      "line": 59,
      "label": "(*Function).Invoke"
    },
    {
      "path": "runtime/asm_amd64.s",
      "line": 574,
      "label": "call64"
    },
    {
      "path": "reflect/value.go",
      "line": 447,
      "label": "Value.call"
    },
    {
      "path": "reflect/value.go",
      "line": 308,
      "label": "Value.Call"
    },
    {
      "path": "net/rpc/server.go",
      "line": 384,
      "label": "(*service).call"
    },
    {
      "path": "runtime/asm_amd64.s",
      "line": 2361,
      "label": "goexit"
    }
  ]
}

START RequestId: 4e8ecdc7-a548-11e8-9f64-250e268ae38f Version: $LATEST
time="2018-08-21T13:44:20Z" level=info msg="Looking up EKS cluster" cluster=xxx
time="2018-08-21T13:44:22Z" level=info msg="Found cluster" cluster=xxx
time="2018-08-21T13:44:22Z" level=debug msg="Cluster details" cluster="<nil>"
runtime error: invalid memory address or nil pointer dereference: errorString
[{"path":"lambda-eks-sample/vendor/github.com/aws/aws-lambda-go/lambda/function.go","line":27,"label":"(*Function).Invoke.func1"},{"path":"runtime/asm_amd64.s","line":573,"label":"call32"},{"path":"runtime/panic.go","line":502,"label":"gopanic"},{"path":"runtime/panic.go","line":63,"label":"panicmem"},{"path":"runtime/signal_unix.go","line":388,"label":"sigpanic"},{"path":"lambda-eks-sample/main.go","line":109,"label":"(*ClusterConfig).loadConfig"},{"path":"lambda-eks-sample/main.go","line":51,"label":"handler"},{"path":"runtime/asm_amd64.s","line":577,"label":"call512"},{"path":"reflect/value.go","line":447,"label":"Value.call"},{"path":"reflect/value.go","line":308,"label":"Value.Call"},{"path":"lambda-eks-sample/vendor/github.com/aws/aws-lambda-go/lambda/handler.go","line":111,"label":"newHandler.func1"},{"path":"lambda-eks-sample/vendor/github.com/aws/aws-lambda-go/lambda/handler.go","line":22,"label":"lambdaHandler.Invoke"},{"path":"lambda-eks-sample/vendor/github.com/aws/aws-lambda-go/lambda/function.go","line":59,"label":"(*Function).Invoke"},{"path":"runtime/asm_amd64.s","line":574,"label":"call64"},{"path":"reflect/value.go","line":447,"label":"Value.call"},{"path":"reflect/value.go","line":308,"label":"Value.Call"},{"path":"net/rpc/server.go","line":384,"label":"(*service).call"},{"path":"runtime/asm_amd64.s","line":2361,"label":"goexit"}]
END RequestId: 4e8ecdc7-a548-11e8-9f64-250e268ae38f
REPORT RequestId: 4e8ecdc7-a548-11e8-9f64-250e268ae38f	Duration: 1241.58 ms	Billed Duration: 1300 ms 	Memory Size: 128 MB	Max Memory Used: 44 MB	
runtime error: invalid memory address or nil pointer dereference
errorString

Getting the above errors while trying to run a test event.
The privileges of my role are proper I think, because I tested them outside of AWS lambda environment and work as expected.
Any idea if I misconfigured something?
Thanks, in advance.

github.com/kubernetes-sigs/aws-iam-authenticator parsing error

when i tried to go mod tidy i get this module error

github.com/chankh/eksutil/pkg/auth imports
	github.com/kubernetes-sigs/aws-iam-authenticator/pkg/token: github.com/kubernetes-sigs/[email protected]: parsing go.mod:
	module declares its path as: sigs.k8s.io/aws-iam-authenticator
	        but was required as: github.com/kubernetes-sigs/aws-iam-authenticator

I guess this library should change github.com/kubernetes-sigs/aws-iam-authenticator module path into sigs.k8s.io/aws-iam-authenticator

thank you.

Build fails.

Getting the following error upon build.

make all                                                                                                                                  2 ↵  18:34:25  production   () 
# lambda-eks-sample
./main.go:217:49: cannot use c.sts.(*"github.com/aws/aws-sdk-go/service/sts".STS) (type *"github.com/aws/aws-sdk-go/service/sts".STS) as type *"github.com/kubernetes-sigs/aws-iam-authenticator/vendor/github.com/aws/aws-sdk-go/service/sts".STS in argument to gen.GetWithSTS

Any ideas how to solve?
Thanks in advance.

Question for RBAC.

Is not really an issue as your sample works as described on documentation.
I just tried to decrease the RBAC level of my role so just be able to list pods on my default namespace.
My implementation uses a RBAC group which inherits permissions for a role (tried also with ClusterRole with same results) and a respective rolebinding. Same approach works in bash and this way achieved to have specific RBAC permissions for a specific iam role. But in our case fails with following message.

msg="Error listing pods" error="pods is forbidden: User \"lambdas\" cannot list pods at the cluster scope"

If you have any idea related to this problem, would be appreciated.
Thanks in advance.

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