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kubernetes's Issues

kube2consul docker image

following the theme of #4 and #10, we'd like to see the kube2consul docker image built and pushed into a public repository as part of the CI pipeline for this fork.

Binary packaging

Upstream compiles and releases binaries. I'd like to see this fork to do the same, in order to migrate Mantl from hyperkube/podmaster to the current documented HA setup.

To migrate the control plane, I'll need at least

  • kube-apiserver
  • kube-controller-manager
  • kube-scheduler
  • kubectl

etcd-servers flag is misused

In Mantl, we use

--etcd-servers=http://127.0.0.1:8500

I assume that this is the Consul address, since this fork uses Consul for storage. Since consul /= etcd, there should be another option, possibly --consul-servers.

kube2consul: update service names so that consul returns valid dns names

Currently, we get service names registered like cluster-local/svc/default/frontend and while consul dns will happily resolve cluster-local/svc/default/frontend.service.consul, it's not a valid dns name and many tools/apis won’t work with it. kube2consul should generate service names that result in valid dns names.

API server reports storage error

The API server is logging this error:

I0718 12:13:14.820477       1 consul.go:241] Storage Error: <nil>, key: registry/services/endpoints/default/kubernetes
I0718 12:13:17.931427       1 consul.go:241] Storage Error: <nil>, key: registry/minions/lb-kubeworker-001
I0718 12:13:19.728024       1 consul.go:241] Storage Error: <nil>, key: registry/minions/lb-kubeworker-002
W0718 12:13:24.830956       1 controller.go:312] Resetting endpoints for master service "kubernetes" to kind:"" apiVersion:"" 
I0718 12:13:24.893052       1 consul.go:241] Storage Error: <nil>, key: registry/services/endpoints/default/kubernetes
I0718 12:13:27.968906       1 consul.go:241] Storage Error: <nil>, key: registry/minions/lb-kubeworker-001
I0718 12:13:29.757710       1 consul.go:241] Storage Error: <nil>, key: registry/minions/lb-kubeworker-002

When I use consul-cli to check out that key, it works:

[root@lb-control-01 ~]# consul-cli kv-read registry/minions/lb-kubeworker-002
{"kind":"Node","apiVersion":"v1","metadata":{"name":"lb-kubeworker-002","selfLink":"/api/v1/nodes/lb-kubeworker-002","uid":"a746cc9b-4cda-11e6-8752-04012f09f701","creationTimestamp":"2016-07-18T11:27:47Z","labels":{"beta.kubernetes.io/arch":"amd64","beta.kubernetes.io/os":"linux","kubernetes.io/hostname":"lb-kubeworker-002"}},"spec":{"externalID":"lb-kubeworker-002"},"status":{"capacity":{"alpha.kubernetes.io/nvidia-gpu":"0","cpu":"2","memory":"3882448Ki","pods":"110"},"allocatable":{"alpha.kubernetes.io/nvidia-gpu":"0","cpu":"2","memory":"3882448Ki","pods":"110"},"conditions":[{"type":"OutOfDisk","status":"False","lastHeartbeatTime":"2016-07-18T12:13:39Z","lastTransitionTime":"2016-07-18T11:27:47Z","reason":"KubeletHasSufficientDisk","message":"kubelet has sufficient disk space available"},{"type":"Ready","status":"True","lastHeartbeatTime":"2016-07-18T12:13:39Z","lastTransitionTime":"2016-07-18T11:27:47Z","reason":"KubeletReady","message":"kubelet is posting ready status"}],"addresses":[{"type":"LegacyHostIP","address":"139.59.159.78"},{"type":"InternalIP","address":"139.59.159.78"}],"daemonEndpoints":{"kubeletEndpoint":{"Port":10250}},"nodeInfo":{"machineID":"e3715d5076f54310a857957070af9f0b","systemUUID":"E3715D50-76F5-4310-A857-957070AF9F0B","bootID":"32c225f8-1985-4ebf-9e97-72b20e9bb497","kernelVersion":"3.10.0-327.22.2.el7.x86_64","osImage":"CentOS Linux 7 (Core)","containerRuntimeVersion":"docker://1.11.2","kubeletVersion":"v1.3.0-alpha.1.1977+a1e79e91b9fb6a","kubeProxyVersion":"v1.3.0-alpha.1.1977+a1e79e91b9fb6a","operatingSystem":"linux","architecture":"amd64"},"images":[{"names":["gcr.io/google_containers/pause-amd64:3.0"],"sizeBytes":746888},{"names":["ciscocloud/nginx-consul:2.0"],"sizeBytes":23773593},{"names":["calico/node:v0.19.0"],"sizeBytes":91984482},{"names":["gcr.io/google_containers/kubernetes-dashboard-amd64:v1.0.1"],"sizeBytes":44090031},{"names":["skynetservices/skydns:2.5.3a"],"sizeBytes":18864800}]}}

What's going on?

Travis CI build?

We should have automated builds of this in drone or travis. This should also include the hypercube docker container push to a repository.

Consul leader electon failures cause pods to be allocated but uncreated

Short and sweet:

[root@lb-control-01 ~]# kubectl logs kube-apiserver-lb-control-01 | grep dash
I0721 13:25:14.377336       1 consul.go:241] Storage Error: Unexpected response code: 500, key: registry/controllers/kube-system/kubernetes-dashboard
I0721 13:25:14.544939       1 consul.go:241] Storage Error: Unexpected response code: 500 (rpc error: No cluster leader), key: registry/controllers/kube-system/kubernetes-dashboard

The pod wasn't created:

[root@lb-control-01 ~]# kubectl get pods -a --all-namespaces
NAMESPACE     NAME                                    READY     STATUS    RESTARTS   AGE
kube-system   kube-apiserver-lb-control-01            1/1       Running   1          13m
kube-system   kube-apiserver-lb-control-02            1/1       Running   0          13m
kube-system   kube-apiserver-lb-control-03            1/1       Running   0          13m
kube-system   kube-controller-manager-lb-control-02   1/1       Running   0          14m
kube-system   kube-podmaster-lb-control-01            2/2       Running   0          13m
kube-system   kube-podmaster-lb-control-02            2/2       Running   0          13m
kube-system   kube-podmaster-lb-control-03            2/2       Running   0          14m
kube-system   kube-proxy-lb-control-01                1/1       Running   0          13m
kube-system   kube-proxy-lb-control-02                1/1       Running   0          13m
kube-system   kube-proxy-lb-control-03                1/1       Running   0          13m
kube-system   kube-proxy-lb-kubeworker-001            1/1       Running   0          13m
kube-system   kube-proxy-lb-kubeworker-002            1/1       Running   0          14m
kube-system   kube-scheduler-lb-control-02            1/1       Running   0          14m
kube-system   kube2consul-lb-control-01               1/1       Running   0          12m
kube-system   kube2consul-lb-control-02               1/1       Running   0          14m
kube-system   kube2consul-lb-control-03               1/1       Running   0          14m

But I can't create a new one:

[root@lb-control-01 ~]# kubectl create -f /etc/kubernetes/manifests/kubernetes-das>
Error from server: replicationcontrollers "kubernetes-dashboard" already exists
Error from server: Service "kubernetes-dashboard" is invalid: spec.ports[0].nodePort: Invalid value: 30000: provided port is already allocated

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