From e9a294fd9c6f94cbbf3cd75ac9bb020226a4438d Mon Sep 17 00:00:00 2001
From: Matthew Mosesohn <mmosesohn@mirantis.com>
Date: Thu, 23 Mar 2017 12:11:30 +0300
Subject: [PATCH] Significantly reduce memory requirements
Canal runs more pods and upgrades need a bit of extra
room to load new pods in and get the old ones out.
---
roles/dnsmasq/defaults/main.yml | 2 +-
roles/kubernetes/master/defaults/main.yml | 6 +++---
roles/kubernetes/master/tasks/pre-upgrade.yml | 2 +-
roles/kubernetes/node/defaults/main.yml | 2 +-
roles/network_plugin/canal/defaults/main.yml | 6 +++---
5 files changed, 9 insertions(+), 9 deletions(-)
diff --git a/roles/dnsmasq/defaults/main.yml b/roles/dnsmasq/defaults/main.yml
index 21d051ded..58b1b7f1d 100644
--- a/roles/dnsmasq/defaults/main.yml
+++ b/roles/dnsmasq/defaults/main.yml
@@ -24,7 +24,7 @@ dnsmasq_image_tag: "{{ dnsmasq_version }}"
# Limits for dnsmasq/kubedns apps
dns_cpu_limit: 100m
dns_memory_limit: 170Mi
-dns_cpu_requests: 70m
+dns_cpu_requests: 40m
dns_memory_requests: 50Mi
# Autoscaler parameters
diff --git a/roles/kubernetes/master/defaults/main.yml b/roles/kubernetes/master/defaults/main.yml
index 2fd307801..9b6e3eff4 100644
--- a/roles/kubernetes/master/defaults/main.yml
+++ b/roles/kubernetes/master/defaults/main.yml
@@ -19,7 +19,7 @@ kube_apiserver_storage_backend: etcd3
# Limits for kube components
kube_controller_memory_limit: 512M
kube_controller_cpu_limit: 250m
-kube_controller_memory_requests: 170M
+kube_controller_memory_requests: 100M
kube_controller_cpu_requests: 100m
kube_controller_node_monitor_grace_period: 40s
kube_controller_node_monitor_period: 5s
@@ -27,11 +27,11 @@ kube_controller_pod_eviction_timeout: 5m0s
kube_scheduler_memory_limit: 512M
kube_scheduler_cpu_limit: 250m
kube_scheduler_memory_requests: 170M
-kube_scheduler_cpu_requests: 100m
+kube_scheduler_cpu_requests: 80m
kube_apiserver_memory_limit: 2000M
kube_apiserver_cpu_limit: 800m
kube_apiserver_memory_requests: 256M
-kube_apiserver_cpu_requests: 300m
+kube_apiserver_cpu_requests: 100m
## Enable/Disable Kube API Server Authentication Methods
diff --git a/roles/kubernetes/master/tasks/pre-upgrade.yml b/roles/kubernetes/master/tasks/pre-upgrade.yml
index adafe80ae..948b944c5 100644
--- a/roles/kubernetes/master/tasks/pre-upgrade.yml
+++ b/roles/kubernetes/master/tasks/pre-upgrade.yml
@@ -38,7 +38,7 @@
environment:
ETCDCTL_API: 2
register: old_data_exists
- delegate_to: "{{groups['kube-master'][0]}}"
+ delegate_to: "{{groups['etcd'][0]}}"
when: kube_apiserver_storage_backend == "etcd3"
failed_when: false
diff --git a/roles/kubernetes/node/defaults/main.yml b/roles/kubernetes/node/defaults/main.yml
index e29847a39..b4ca13d12 100644
--- a/roles/kubernetes/node/defaults/main.yml
+++ b/roles/kubernetes/node/defaults/main.yml
@@ -21,7 +21,7 @@ kube_proxy_cpu_requests: 150m
nginx_memory_limit: 512M
nginx_cpu_limit: 300m
nginx_memory_requests: 32M
-nginx_cpu_requests: 50m
+nginx_cpu_requests: 25m
# kube_api_runtime_config:
# - extensions/v1beta1/daemonsets=true
diff --git a/roles/network_plugin/canal/defaults/main.yml b/roles/network_plugin/canal/defaults/main.yml
index f82ff831e..d4018db4d 100644
--- a/roles/network_plugin/canal/defaults/main.yml
+++ b/roles/network_plugin/canal/defaults/main.yml
@@ -21,13 +21,13 @@ canal_policy_dir: /etc/kubernetes/policy
calico_node_memory_limit: 500M
calico_node_cpu_limit: 200m
calico_node_memory_requests: 64M
-calico_node_cpu_requests: 100m
+calico_node_cpu_requests: 50m
flannel_memory_limit: 500M
flannel_cpu_limit: 200m
flannel_memory_requests: 64M
-flannel_cpu_requests: 100m
+flannel_cpu_requests: 50m
calicoctl_memory_limit: 170M
calicoctl_cpu_limit: 100m
calicoctl_memory_requests: 32M
-calicoctl_cpu_requests: 50m
+calicoctl_cpu_requests: 25m
--
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