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| openstackgerrit | Alexey Perevalov proposed openstack/kuryr-kubernetes master: Use non local port for CNI Daemon https://review.opendev.org/660152 | 05:51 |
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| openstackgerrit | Nayan Deshmukh proposed openstack/kuryr-kubernetes master: [WIP] Implement batching for port create requests https://review.opendev.org/660274 | 07:58 |
| aperevalov | hi | 07:58 |
| aperevalov | how did you manage to user ClusterIP from user pod created by kuryr-kubernetes. | 08:02 |
| aperevalov | ? | 08:15 |
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| dulek | aperevalov: I don't understand the question, can you elaborate? | 09:09 |
| aperevalov | yes, you can see you cluster ip by kubectl get all. There will be cluster ip, it uses in incluster config (https://kubernetes.io/docs/tasks/access-application-cluster/access-cluster/#accessing-the-api-from-a-pod). kube-proxy is responsible for creating iptables rules, dnat and masquarading to be able to access cluster ip from user pod. | 09:13 |
| aperevalov | for example kuryr-controller connects to k8s api by ip, kube-apiserver is listening. But there is another way, if you are in the user pod in pod subnet, this way is using kube-apiserver by service ip address in pod subnet (and service port). | 09:19 |
| aperevalov | official k8s python client names this was as incluster config. It reads environment variables KUBERNETES_SERVICE_HOST and KUBERNETES_SERVICE_PORT_HTTPS and tries to connect there. | 09:22 |
| dulek | aperevalov: Ah, okay! So in case of Kuryr we expect the deployment tool to create the LB. | 10:20 |
| dulek | For the kubernetes API service. | 10:20 |
| dulek | And DevStack does it. | 10:20 |
| dulek | You should have those env vars inside the pod. | 10:20 |
| dulek | And K8s API should be accessible through `curl https://kubernetes.default` if you have `enable_service coredns` in local.con f. | 10:21 |
| dulek | In case of non-DevStack deployments it's up to installer - e.g. in OpenShift it's openshift-ansible that configures this. | 10:21 |
| aperevalov | dulek, thank you. I'l take a look into devstack installation. | 10:24 |
| dulek | aperevalov: https://github.com/openstack/kuryr-kubernetes/blob/master/devstack/plugin.sh#L215-L262 | 10:26 |
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