Segfault whilst trying to edit nodes from Mac

[dwelch2344]

Bringing over from Slack

Running:
kops 1.6.2
kubectl 1.6.6 client
kube 1.6.2 server
go version go1.8 darwin/amd64 & go version go1.9 darwin/amd64

Using cluster from kubectl context: shii-cho.hexly.tech

panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x1b4489a]

goroutine 1 [running]:
k8s.io/kops/vendor/github.com/aws/aws-sdk-go/aws/session.(*Session).Copy(0x0, 0x0, 0x0, 0x0, 0x404ac00)
	/private/tmp/kops-20170727-59580-9i6r3d/kops-1.7.0/src/k8s.io/kops/vendor/github.com/aws/aws-sdk-go/aws/session/session.go:370 +0x3a
k8s.io/kops/vendor/github.com/aws/aws-sdk-go/aws/session.(*Session).clientConfigWithErr(0x0, 0x400e563, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
	/private/tmp/kops-20170727-59580-9i6r3d/kops-1.7.0/src/k8s.io/kops/vendor/github.com/aws/aws-sdk-go/aws/session/session.go:391 +0x98
k8s.io/kops/vendor/github.com/aws/aws-sdk-go/aws/session.(*Session).ClientConfig(0x0, 0x400e563, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
	/private/tmp/kops-20170727-59580-9i6r3d/kops-1.7.0/src/k8s.io/kops/vendor/github.com/aws/aws-sdk-go/aws/session/session.go:385 +0xb2
k8s.io/kops/vendor/github.com/aws/aws-sdk-go/service/ec2.New(0x5962a00, 0x0, 0x0, 0x0, 0x0, 0xc420b0e800)
	/private/tmp/kops-20170727-59580-9i6r3d/kops-1.7.0/src/k8s.io/kops/vendor/github.com/aws/aws-sdk-go/service/ec2/service.go:48 +0x88
k8s.io/kops/util/pkg/vfs.bruteforceBucketLocation(0xc420aeed70, 0xc42000eaa0, 0x46, 0xc4205f95b8, 0x2)
	/private/tmp/kops-20170727-59580-9i6r3d/kops-1.7.0/src/k8s.io/kops/util/pkg/vfs/s3context.go:183 +0xdb
k8s.io/kops/util/pkg/vfs.(*S3Context).getRegionForBucket(0xc42040da80, 0xc420010116, 0x1c, 0x0, 0x0, 0x0, 0x0)
	/private/tmp/kops-20170727-59580-9i6r3d/kops-1.7.0/src/k8s.io/kops/util/pkg/vfs/s3context.go:142 +0x7b4
k8s.io/kops/util/pkg/vfs.(*S3Path).client(0xc420aed280, 0x400dbee, 0x1, 0xc4205f96e8)
	/private/tmp/kops-20170727-59580-9i6r3d/kops-1.7.0/src/k8s.io/kops/util/pkg/vfs/s3fs.go:278 +0xbd
k8s.io/kops/util/pkg/vfs.(*S3Path).ReadFile(0xc420aed280, 0x0, 0x0, 0x0, 0x0, 0x0)
	/private/tmp/kops-20170727-59580-9i6r3d/kops-1.7.0/src/k8s.io/kops/util/pkg/vfs/s3fs.go:168 +0x7c
k8s.io/kops/pkg/client/simple/vfsclientset.(*commonVFS).readConfig(0xc420adb630, 0x59955e0, 0xc420aed280, 0x2, 0x59955e0, 0xc420aed280, 0x7)
	/private/tmp/kops-20170727-59580-9i6r3d/kops-1.7.0/src/k8s.io/kops/pkg/client/simple/vfsclientset/commonvfs.go:117 +0x49
k8s.io/kops/pkg/client/simple/vfsclientset.(*ClusterVFS).find(0xc420adb630, 0xc420ad02e0, 0x13, 0x1db99e7, 0x59955e0, 0xc420aed240)
	/private/tmp/kops-20170727-59580-9i6r3d/kops-1.7.0/src/k8s.io/kops/pkg/client/simple/vfsclientset/cluster.go:169 +0x104
k8s.io/kops/pkg/client/simple/vfsclientset.(*ClusterVFS).Get(0xc420adb630, 0xc420ad02e0, 0x13, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
	/private/tmp/kops-20170727-59580-9i6r3d/kops-1.7.0/src/k8s.io/kops/pkg/client/simple/vfsclientset/cluster.go:54 +0xb4
k8s.io/kops/pkg/client/simple/vfsclientset.(*VFSClientset).GetCluster(0xc420aeed50, 0xc420ad02e0, 0x13, 0x0, 0x0, 0xc4205f99e0)
	/private/tmp/kops-20170727-59580-9i6r3d/kops-1.7.0/src/k8s.io/kops/pkg/client/simple/vfsclientset/clientset.go:42 +0x82
main.GetCluster(0xc420a24e40, 0xc420ad02e0, 0x13, 0x35c07ed, 0x5973480, 0xc4205f9ac8)
	/private/tmp/kops-20170727-59580-9i6r3d/kops-1.7.0/src/k8s.io/kops/cmd/kops/root.go:289 +0x92
main.(*RootCmd).Cluster(0x5af4580, 0x10, 0x10, 0x39d5220)
	/private/tmp/kops-20170727-59580-9i6r3d/kops-1.7.0/src/k8s.io/kops/cmd/kops/root.go:276 +0xb5
main.RunEditInstanceGroup(0xc420a24e40, 0xc42028fb00, 0xc4201cdf10, 0x1, 0x1, 0x5971b80, 0xc42000e018, 0x5b295e0, 0x0, 0x0)
	/private/tmp/kops-20170727-59580-9i6r3d/kops-1.7.0/src/k8s.io/kops/cmd/kops/edit_instancegroup.go:90 +0x94
main.NewCmdEditInstanceGroup.func1(0xc42028fb00, 0xc4201cdf10, 0x1, 0x1)
	/private/tmp/kops-20170727-59580-9i6r3d/kops-1.7.0/src/k8s.io/kops/cmd/kops/edit_instancegroup.go:70 +0x77
k8s.io/kops/vendor/github.com/spf13/cobra.(*Command).execute(0xc42028fb00, 0xc4201cdee0, 0x1, 0x1, 0xc42028fb00, 0xc4201cdee0)
	/private/tmp/kops-20170727-59580-9i6r3d/kops-1.7.0/src/k8s.io/kops/vendor/github.com/spf13/cobra/command.go:603 +0x22b
k8s.io/kops/vendor/github.com/spf13/cobra.(*Command).ExecuteC(0x5af9060, 0x38c2f00, 0x0, 0x0)
	/private/tmp/kops-20170727-59580-9i6r3d/kops-1.7.0/src/k8s.io/kops/vendor/github.com/spf13/cobra/command.go:689 +0x339
k8s.io/kops/vendor/github.com/spf13/cobra.(*Command).Execute(0x5af9060, 0x5b295e0, 0x0)
	/private/tmp/kops-20170727-59580-9i6r3d/kops-1.7.0/src/k8s.io/kops/vendor/github.com/spf13/cobra/command.go:648 +0x2b
main.Execute()
	/private/tmp/kops-20170727-59580-9i6r3d/kops-1.7.0/src/k8s.io/kops/cmd/kops/root.go:98 +0x9b
main.main()
	/private/tmp/kops-20170727-59580-9i6r3d/kops-1.7.0/src/k8s.io/kops/cmd/kops/main.go:25 +0x20```

[chrislovecnm]

Closing as I think this is fixed