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Update information about network sizes

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Miouge1 2018-01-26 15:13:21 +01:00 committed by Maxime Guyot
parent ac66e98ae9
commit 240d4193ae
2 changed files with 12 additions and 1 deletions
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docs/large-deployments.md
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@ -34,6 +34,9 @@ For a large scaled deployments, consider the following configuration changes:
``kube_controller_pod_eviction_timeout`` for better Kubernetes reliability.
Check out [Kubernetes Reliability](kubernetes-reliability.md)
* Tune network prefix sizes. Those are ``kube_network_node_prefix``,
``kube_service_addresses`` and ``kube_pods_subnet``.
* Add calico-rr nodes if you are deploying with Calico or Canal. Nodes recover
from host/network interruption much quicker with calico-rr. Note that
calico-rr role must be on a host without kube-master or kube-node role (but

10
roles/kubespray-defaults/defaults/main.yaml
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@ -99,7 +99,15 @@ kube_pods_subnet: 10.233.64.0/18
# internal network node size allocation (optional). This is the size allocated
# to each node on your network. With these defaults you should have
# room for 4096 nodes with 254 pods per node.
# room for 64 nodes with 254 pods per node.
# Example: Up to 256 nodes, 100 pods per node (/16 network):
# - kube_service_addresses: 10.233.0.0/17
# - kube_pods_subnet: 10.233.128.0/17
# - kube_network_node_prefix: 25
# Example: Up to 4096 nodes, 100 pods per node (/12 network):
# - kube_service_addresses: 10.192.0.0/13
# - kube_pods_subnet: 10.200.0.0/13
# - kube_network_node_prefix: 25
kube_network_node_prefix: 24
# The virtual cluster IP, real host IPs and ports the API Server will be