airship/promenade
Code Issues Proposed changes
promenade/docs/source/configuration/kubernetes-network.rst
Mark Burnett ff3787c2ad Use HAProxy for apiserver discovery 
This removes the reliance on coredns for APIserver discovery, allowing
a simpler configuration that is compatible with corednx 1.0.x

Change-Id: Ia3b7b5627c16ec47af6b0d6d5e8dee2674e9b1ee
2018-02-08 14:30:35 -06:00

2.3 KiB
Raw Blame History

Kubernetes Network

Configuration for Kubernetes networking during bootstrapping and for the kubelet.

Sample Document

schema: promenade/KubernetesNetwork/v1
metadata:
  schema: metadata/Document/v1
  name: kubernetes-network
  layeringDefinition:
    abstract: false
    layer: site
data:
  dns:
    cluster_domain: cluster.local
    service_ip: 10.96.0.10
    bootstrap_validation_checks:
      - calico-etcd.kube-system.svc.cluster.local
      - kubernetes-etcd.kube-system.svc.cluster.local
      - kubernetes.default.svc.cluster.local
    upstream_servers:
      - 8.8.8.8
      - 8.8.4.4

  kubernetes:
    apiserver_port: 6443
    haproxy_port: 6553
    pod_cidr: 10.97.0.0/16
    service_cidr: 10.96.0.0/16
    service_ip: 10.96.0.1

  etcd:
    container_port: 2379
    haproxy_port: 2378

  hosts_entries:
    - ip: 192.168.77.1
      names:
        - registry

  proxy:
    url: http://proxy.example.com:8080
    additional_no_proxy:
      - 192.168.77.1

DNS

The data in the dns key is used for bootstrapping and kubelet configuration of cluster and host-level DNS, which is provided by coredns.

bootstrap_validation_checks

Domain names to resolve during the genesis and join processes for validation.

cluster_domain

The Kubernetes cluster domain. Used by the kubelet.

service_ip

The IP to use for cluster DNS. Used by the kubelet.

upstream_servers

Upstream DNS servers to be configured in /etc/resolv.conf.

Kubernetes

The kubernetes key contains:

apiserver_port

The port that the Kubernetes API server process will listen on on hosts where it runs.

haproxy_port

The port that HAProxy will listen on on each host. This port will be used by the kubelet and kube-proxy to find API servers in the cluster.

pod_cidr

The CIDR from which the Kubernetes Controller Manager assigns pod IPs.

service_cidr

The CIDR from which the Kubernetes Controller Manager assigns service IPs.

service_ip

The in-cluster Kubernetes service IP.