| #!/usr/bin/env bash |
| |
| # Copyright 2016 The Kubernetes Authors. |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| # Vars assumed: |
| # NUM_NODES |
| function get-master-size { |
| local suggested_master_size=1 |
| if [[ "${NUM_NODES}" -gt "5" ]]; then |
| suggested_master_size=2 |
| fi |
| if [[ "${NUM_NODES}" -gt "10" ]]; then |
| suggested_master_size=4 |
| fi |
| if [[ "${NUM_NODES}" -gt "100" ]]; then |
| suggested_master_size=8 |
| fi |
| if [[ "${NUM_NODES}" -gt "250" ]]; then |
| suggested_master_size=16 |
| fi |
| if [[ "${NUM_NODES}" -gt "500" ]]; then |
| suggested_master_size=32 |
| fi |
| if [[ "${NUM_NODES}" -gt "3000" ]]; then |
| suggested_master_size=64 |
| fi |
| echo "${suggested_master_size}" |
| } |
| |
| # Vars assumed: |
| # NUM_NODES |
| function get-master-root-disk-size() { |
| local suggested_master_root_disk_size="20GB" |
| if [[ "${NUM_NODES}" -gt "1000" ]]; then |
| suggested_master_root_disk_size="50GB" |
| fi |
| if [[ "${NUM_NODES}" -gt "2000" ]]; then |
| suggested_master_root_disk_size="100GB" |
| fi |
| echo "${suggested_master_root_disk_size}" |
| } |
| |
| # Vars assumed: |
| # NUM_NODES |
| function get-master-disk-size() { |
| local suggested_master_disk_size="20GB" |
| if [[ "${NUM_NODES}" -gt "1000" ]]; then |
| suggested_master_disk_size="100GB" |
| fi |
| if [[ "${NUM_NODES}" -gt "2000" ]]; then |
| suggested_master_disk_size="200GB" |
| fi |
| echo "${suggested_master_disk_size}" |
| } |
| |
| function get-node-ip-range { |
| if [[ -n "${NODE_IP_RANGE:-}" ]]; then |
| >&2 echo "Using user provided NODE_IP_RANGE: ${NODE_IP_RANGE}" |
| echo "${NODE_IP_RANGE}" |
| return |
| fi |
| local suggested_range="10.40.0.0/22" |
| if [[ "${NUM_NODES}" -gt 1000 ]]; then |
| suggested_range="10.40.0.0/21" |
| fi |
| if [[ "${NUM_NODES}" -gt 2000 ]]; then |
| suggested_range="10.40.0.0/20" |
| fi |
| if [[ "${NUM_NODES}" -gt 4000 ]]; then |
| suggested_range="10.40.0.0/19" |
| fi |
| echo "${suggested_range}" |
| } |
| |
| function get-cluster-ip-range { |
| local suggested_range="10.64.0.0/14" |
| if [[ "${NUM_NODES}" -gt 1000 ]]; then |
| suggested_range="10.64.0.0/13" |
| fi |
| if [[ "${NUM_NODES}" -gt 2000 ]]; then |
| suggested_range="10.64.0.0/12" |
| fi |
| if [[ "${NUM_NODES}" -gt 4000 ]]; then |
| suggested_range="10.64.0.0/11" |
| fi |
| echo "${suggested_range}" |
| } |
| |
| # Calculate ip alias range based on max number of pods. |
| # Let pow be the smallest integer which is bigger or equal to log2($1 * 2). |
| # (32 - pow) will be returned. |
| # |
| # $1: The number of max pods limitation. |
| function get-alias-range-size() { |
| for pow in {0..31}; do |
| if (( 1 << $pow >= $1 * 2 )); then |
| echo $((32 - pow)) |
| return 0 |
| fi |
| done |
| } |
| # NOTE: Avoid giving nodes empty scopes, because kubelet needs a service account |
| # in order to initialize properly. |
| NODE_SCOPES="${NODE_SCOPES:-monitoring,logging-write,storage-ro}" |
