1#!/usr/bin/env bash
2
3# Copyright 2016 The Kubernetes Authors.
4#
5# Licensed under the Apache License, Version 2.0 (the "License");
6# you may not use this file except in compliance with the License.
7# You may obtain a copy of the License at
8#
9# http://www.apache.org/licenses/LICENSE-2.0
10#
11# Unless required by applicable law or agreed to in writing, software
12# distributed under the License is distributed on an "AS IS" BASIS,
13# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14# See the License for the specific language governing permissions and
15# limitations under the License.
16
17# Returns the total number of Linux and Windows nodes in the cluster.
18#
19# Vars assumed:
20# NUM_NODES
21# NUM_WINDOWS_NODES
22function get-num-nodes {
23 echo "$((NUM_NODES + NUM_WINDOWS_NODES))"
24}
25
26# Vars assumed:
27# NUM_NODES
28# NUM_WINDOWS_NODES
29function get-master-size {
30 local suggested_master_size=2
31 if [[ "$(get-num-nodes)" -gt "10" ]]; then
32 suggested_master_size=4
33 fi
34 if [[ "$(get-num-nodes)" -gt "50" ]]; then
35 suggested_master_size=8
36 fi
37 if [[ "$(get-num-nodes)" -gt "100" ]]; then
38 suggested_master_size=16
39 fi
40 if [[ "$(get-num-nodes)" -gt "500" ]]; then
41 suggested_master_size=32
42 fi
43 echo "${suggested_master_size}"
44}
45
46# Vars assumed:
47# NUM_NODES
48# NUM_WINDOWS_NODES
49function get-master-root-disk-size() {
50 local suggested_master_root_disk_size="20GB"
51 if [[ "$(get-num-nodes)" -gt "500" ]]; then
52 suggested_master_root_disk_size="100GB"
53 fi
54 if [[ "$(get-num-nodes)" -gt "3000" ]]; then
55 suggested_master_root_disk_size="500GB"
56 fi
57 echo "${suggested_master_root_disk_size}"
58}
59
60# Vars assumed:
61# NUM_NODES
62# NUM_WINDOWS_NODES
63function get-master-disk-size() {
64 local suggested_master_disk_size="20GB"
65 if [[ "$(get-num-nodes)" -gt "500" ]]; then
66 suggested_master_disk_size="100GB"
67 fi
68 if [[ "$(get-num-nodes)" -gt "3000" ]]; then
69 suggested_master_disk_size="200GB"
70 fi
71 echo "${suggested_master_disk_size}"
72}
73
74function get-node-ip-range {
75 if [[ -n "${NODE_IP_RANGE:-}" ]]; then
76 echo "${NODE_IP_RANGE}"
77 return
78 fi
79 local suggested_range="10.40.0.0/22"
80 if [[ "$(get-num-nodes)" -gt 1000 ]]; then
81 suggested_range="10.40.0.0/21"
82 fi
83 if [[ "$(get-num-nodes)" -gt 2000 ]]; then
84 suggested_range="10.40.0.0/20"
85 fi
86 if [[ "$(get-num-nodes)" -gt 4000 ]]; then
87 suggested_range="10.40.0.0/19"
88 fi
89 echo "${suggested_range}"
90}
91
92function get-cluster-ip-range {
93 local suggested_range="10.64.0.0/14"
94 if [[ "$(get-num-nodes)" -gt 1000 ]]; then
95 suggested_range="10.64.0.0/13"
96 fi
97 if [[ "$(get-num-nodes)" -gt 2000 ]]; then
98 suggested_range="10.64.0.0/12"
99 fi
100 if [[ "$(get-num-nodes)" -gt 4000 ]]; then
101 suggested_range="10.64.0.0/11"
102 fi
103 echo "${suggested_range}"
104}
105
106# Calculate ip alias range based on max number of pods.
107# Let pow be the smallest integer which is bigger or equal to log2($1 * 2).
108# (32 - pow) will be returned.
109#
110# $1: The number of max pods limitation.
111function get-alias-range-size() {
112 for pow in {0..31}; do
113 if (( 1 << pow >= $1 * 2 )); then
114 echo $((32 - pow))
115 return 0
116 fi
117 done
118}
119# NOTE: Avoid giving nodes empty scopes, because kubelet needs a service account
120# in order to initialize properly.
121NODE_SCOPES="${NODE_SCOPES:-monitoring,logging-write,storage-ro}"
122
123# Below exported vars are used in cluster/gce/util.sh (or maybe somewhere else),
124# please remove those vars when not needed any more.
125
126# Root directory for Kubernetes files on Windows nodes.
127WINDOWS_K8S_DIR="C:\etc\kubernetes"
128# Directory where Kubernetes binaries will be installed on Windows nodes.
129export WINDOWS_NODE_DIR="${WINDOWS_K8S_DIR}\node\bin"
130# Directory where Kubernetes log files will be stored on Windows nodes.
131export WINDOWS_LOGS_DIR="${WINDOWS_K8S_DIR}\logs"
132# Directory where CNI binaries will be stored on Windows nodes.
133export WINDOWS_CNI_DIR="${WINDOWS_K8S_DIR}\cni"
134# Directory where CNI config files will be stored on Windows nodes.
135export WINDOWS_CNI_CONFIG_DIR="${WINDOWS_K8S_DIR}\cni\config"
136# CNI storage path for Windows nodes
137export WINDOWS_CNI_STORAGE_PATH="https://storage.googleapis.com/k8s-artifacts-cni/release"
138# CNI version for Windows nodes
139export WINDOWS_CNI_VERSION="v1.4.0"
140# Pod manifests directory for Windows nodes on Windows nodes.
141export WINDOWS_MANIFESTS_DIR="${WINDOWS_K8S_DIR}\manifests"
142# Directory where cert/key files will be stores on Windows nodes.
143export WINDOWS_PKI_DIR="${WINDOWS_K8S_DIR}\pki"
144# Location of the certificates file on Windows nodes.
145export WINDOWS_CA_FILE="${WINDOWS_PKI_DIR}\ca-certificates.crt"
146# Path for kubelet config file on Windows nodes.
147export WINDOWS_KUBELET_CONFIG_FILE="${WINDOWS_K8S_DIR}\kubelet-config.yaml"
148# Path for kubeconfig file on Windows nodes.
149export WINDOWS_KUBECONFIG_FILE="${WINDOWS_K8S_DIR}\kubelet.kubeconfig"
150# Path for bootstrap kubeconfig file on Windows nodes.
151export WINDOWS_BOOTSTRAP_KUBECONFIG_FILE="${WINDOWS_K8S_DIR}\kubelet.bootstrap-kubeconfig"
152# Path for kube-proxy kubeconfig file on Windows nodes.
153export WINDOWS_KUBEPROXY_KUBECONFIG_FILE="${WINDOWS_K8S_DIR}\kubeproxy.kubeconfig"
154# Path for kube-proxy kubeconfig file on Windows nodes.
155export WINDOWS_NODEPROBLEMDETECTOR_KUBECONFIG_FILE="${WINDOWS_K8S_DIR}\node-problem-detector.kubeconfig"
156# Pause container image for Windows container.
157export WINDOWS_INFRA_CONTAINER="registry.k8s.io/pause:3.9"
158# Storage Path for csi-proxy. csi-proxy only needs to be installed for Windows.
159export CSI_PROXY_STORAGE_PATH="https://storage.googleapis.com/gke-release/csi-proxy"
160# Version for csi-proxy
161export CSI_PROXY_VERSION="${CSI_PROXY_VERSION:-v1.1.1-gke.0}"
162# csi-proxy additional flags, there are additional flags that cannot be unset in k8s-node-setup.psm1
163export CSI_PROXY_FLAGS="${CSI_PROXY_FLAGS:-}"
164# Storage path for auth-provider-gcp binaries
165export AUTH_PROVIDER_GCP_STORAGE_PATH="${AUTH_PROVIDER_GCP_STORAGE_PATH:-https://storage.googleapis.com/gke-release/auth-provider-gcp}"
166# auth-provider-gcp version
167export AUTH_PROVIDER_GCP_VERSION="${AUTH_PROVIDER_GCP_VERSION:-v0.0.2-gke.4}"
168# Hash of auth-provider-gcp.exe binary
169export AUTH_PROVIDER_GCP_HASH_WINDOWS_AMD64="${AUTH_PROVIDER_GCP_HASH_WINDOWS_AMD64:-348af2c189d938e1a4fa5ac5c640d21e003da1f000abcd6fd7eef2acd0678638286e40703618758d4fdfe2cc4b90e920f0422128ec777c74054af9dd4405de12}"
170# Directory of kubelet image credential provider binary files on windows
171export AUTH_PROVIDER_GCP_LINUX_BIN_DIR="${AUTH_PROVIDER_GCP_LINUX_BIN_DIR:-/home/kubernetes/bin}"
172# Location of kubelet image credential provider config file on windows
173export AUTH_PROVIDER_GCP_LINUX_CONF_FILE="${AUTH_PROVIDER_GCP_LINUX_CONF_FILE:-/home/kubernetes/cri-auth-config.yaml}"
174# Directory of kubelet image credential provider binary files on windows
175export AUTH_PROVIDER_GCP_WINDOWS_BIN_DIR=${AUTH_PROVIDER_GCP_WINDOWS_BIN_DIR:-${WINDOWS_NODE_DIR}}
176# Location of kubelet image credential provider config file on windows
177export AUTH_PROVIDER_GCP_WINDOWS_CONF_FILE="${AUTH_PROVIDER_GCP_WINDOWS_CONF_FILE:-${WINDOWS_K8S_DIR}\cri-auth-config.yaml}"
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