kubectl apply/create "unexcpected EOF"

Question

My kubectl can't read files and returns 'error: unexpected EOF' every time.

kubectl apply -f service.yaml
> error: unexpected EOF

I use a realy simple service.yaml like this, also this keeps happening on every file i try to read with kubectl:

apiVersion: v1
kind: Service
metadata:
  name: myapp
spec:
  selector:
    app: myapp
  ports:
  - protocol: TCP
    port: 80
    targetPort: 8090
  type: NodePort

Also the same error on kubectl create -f service.yaml and on cat service.yaml | kubectl apply -f -

Have removed+installed/updated/reinstalled it over gcloud:

gcloud version
>Google Cloud SDK 219.0.1
>core 2018.09.28
>docker-credential-gcr 
>gsutil 4.34
>kubectl 2018.09.17

also

kubectl version
Client Version: version.Info{Major:"1", Minor:"10", GitVersion:"v1.10.7", GitCommit:"0c38c362511b20a098d7cd855f1314dad92c2780", GitTreeState:"clean", BuildDate:"2018-08-20T10:09:03Z", GoVersion:"go1.9.3", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"9+", GitVersion:"v1.9.7-gke.6", GitCommit:"9b635efce81582e1da13b35a7aa539c0ccb32987", GitTreeState:"clean", BuildDate:"2018-08-16T21:33:47Z", GoVersion:"go1.9.3b4", Compiler:"gc", Platform:"linux/amd64"}

This may be not a bug in kubectl but on some other component in my system which is used by kubectl to read files. But i have no clue where to look for.

System Ubuntu 18.04.1 LTS, everything up to date

UPDATE: I checkd again with a -v8 option to debug

I1013 11:31:43.750810   17705 loader.go:357] Config loaded from file /home/arno/.kube/config
I1013 11:31:43.751750   17705 round_trippers.go:384] GET https://[clusterIP]/openapi/v2
I1013 11:31:43.751766   17705 round_trippers.go:391] Request Headers:
I1013 11:31:43.751772   17705 round_trippers.go:394]     Accept: application/[email protected]+protobuf
I1013 11:31:43.751778   17705 round_trippers.go:394]     User-Agent: kubectl/v1.10.7 (linux/amd64) kubernetes/0c38c36
I1013 11:31:44.653232   17705 round_trippers.go:409] Response Status: 404 Not Found in 901 milliseconds
I1013 11:31:44.653254   17705 round_trippers.go:412] Response Headers:
I1013 11:31:44.653263   17705 round_trippers.go:415]     Content-Type: application/json
I1013 11:31:44.653270   17705 round_trippers.go:415]     Content-Length: 524
I1013 11:31:44.653285   17705 round_trippers.go:415]     Date: Sat, 13 Oct 2018 09:31:44 GMT
I1013 11:31:44.653291   17705 round_trippers.go:415]     Audit-Id: e765ef72-8c26-4b67-9039-901efc147cba
I1013 11:31:44.654650   17705 request.go:874] Response Body: {
"paths": [
 "/apis",
 "/apis/",
 "/apis/apiextensions.k8s.io",
 "/apis/apiextensions.k8s.io/v1beta1",
 "/healthz",
 "/healthz/etcd",
 "/healthz/ping",
 "/healthz/poststarthook/generic-apiserver-start-informers",
 "/healthz/poststarthook/start-apiextensions-controllers",
 "/healthz/poststarthook/start-apiextensions-informers",
 "/metrics",
 "/swagger-2.0.0.json",
 "/swagger-2.0.0.pb-v1",
 "/swagger-2.0.0.pb-v1.gz",
 "/swagger.json",
 "/swaggerapi",
 "/version"
 ]
}
I1013 11:31:44.663105   17705 round_trippers.go:384] GET https://[clusterIP]/swagger-2.0.0.pb-v1
I1013 11:31:44.663130   17705 round_trippers.go:391] Request Headers:
I1013 11:31:44.663138   17705 round_trippers.go:394]     User-Agent: kubectl/v1.10.7 (linux/amd64) kubernetes/0c38c36
I1013 11:31:44.663144   17705 round_trippers.go:394]     Accept: application/json, */*
I1013 11:31:44.688907   17705 round_trippers.go:409] Response Status: 200 OK in 25 milliseconds
I1013 11:31:44.688928   17705 round_trippers.go:412] Response Headers:
I1013 11:31:44.688935   17705 round_trippers.go:415]     Date: Sat, 13 Oct 2018 09:31:44 GMT
I1013 11:31:44.688942   17705 round_trippers.go:415]     Etag: "629C2395D5FEDD5D2ED46FE7C691E126BE621789A85F507C44292E9B50E3285AEBBA55D242800C3C9B0A9258E64444CE3B55BD8E485788936DAE773C6548EA64"
I1013 11:31:44.688951   17705 round_trippers.go:415]     Last-Modified: Sun, 08 Jul 2018 16:39:40 GMT
I1013 11:31:44.688960   17705 round_trippers.go:415]     Vary: Accept-Encoding
I1013 11:31:44.688969   17705 round_trippers.go:415]     X-From-Cache: 1
I1013 11:31:44.688976   17705 round_trippers.go:415]     Accept-Ranges: bytes
I1013 11:31:44.688983   17705 round_trippers.go:415]     Content-Type: application/octet-stream
I1013 11:31:44.785113   17705 request.go:872] Response Body:
00000000  0a 03 32 2e 30 12 14 0a  0a 4b 75 62 65 72 6e 65  |..2.0....Kuberne|
00000010  74 65 73 12 06 76 31 2e  39 2e 37 42 d4 e0 5f 12  |tes..v1.9.7B.._.|
00000020  ca 02 0a 05 2f 61 70 69  2f 12 c0 02 12 bd 02 0a  |..../api/.......|
00000030  04 63 6f 72 65 1a 1a 67  65 74 20 61 76 61 69 6c  |.core..get avail|
00000040  61 62 6c 65 20 41 50 49  20 76 65 72 73 69 6f 6e  |able API version|
00000050  73 2a 12 67 65 74 43 6f  72 65 41 50 49 56 65 72  |s*.getCoreAPIVer|
00000060  73 69 6f 6e 73 32 10 61  70 70 6c 69 63 61 74 69  |sions2.applicati|
00000070  6f 6e 2f 6a 73 6f 6e 32  10 61 70 70 6c 69 63 61  |on/json2.applica|
00000080  74 69 6f 6e 2f 79 61 6d  6c 32 23 61 70 70 6c 69  |tion/yaml2#appli|
00000090  63 61 74 69 6f 6e 2f 76  6e 64 2e 6b 75 62 65 72  |cation/vnd.kuber|
000000a0  6e 65 74 65 73 2e 70 72  6f 74 6f 62 75 66 3a 10  |netes.protobuf:.|
000000b0  61 70 70 6c 69 63 61 74  69 6f 6e 2f 6a 73 6f 6e  |application/json|
000000c0  3a 10 61 70 70 6c 69 63  61 74 69 6f 6e 2f 79 61  |:.application/y [truncated 10504225 chars]
F1013 11:31:44.806007   17705 helpers.go:119] error: unexpected EOF

Answer 1

The part with the failed response was indicating a version mismatch:

I1013 11:31:43.751750   17705 round_trippers.go:384] GET https://[clusterIP]/openapi/v2
I1013 11:31:43.751766   17705 round_trippers.go:391] Request Headers:
I1013 11:31:43.751772   17705 round_trippers.go:394]     Accept: application/[email protected]+protobuf
I1013 11:31:43.751778   17705 round_trippers.go:394]     User-Agent: kubectl/v1.10.7 (linux/amd64) kubernetes/0c38c36
I1013 11:31:44.653232   17705 round_trippers.go:409] Response Status: 404 Not Found in 901 milliseconds

The google kubernetes cluster was on an older version, something like 1.9.x and my gcloud kubectl was 1.10.7. After updating the Cluster it works again.