d961190e6f
DNS horizontal autoscaling feature is turned on by default on gce. The corresponding env var is piped into almost all other cloud providers.
96 lines
3.6 KiB
Bash
Executable File
96 lines
3.6 KiB
Bash
Executable File
#!/bin/bash
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# Copyright 2014 The Kubernetes Authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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##########################################################
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#
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# Common parameters for Kubernetes
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#
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##########################################################
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# Default number of nodes to make. You can change this as needed
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NUM_NODES=3
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# Range of IPs assigned to pods
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NODE_IP_RANGES="10.244.0.0/16"
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# IPs used by Kubernetes master
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MASTER_IP_RANGE="${MASTER_IP_RANGE:-10.246.0.0/24}"
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# Range of IPs assigned by Kubernetes to services
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SERVICE_CLUSTER_IP_RANGE="10.244.240.0/20"
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##########################################################
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#
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# Advanced parameters for Kubernetes
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#
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##########################################################
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# The instance prefix is the beginning of the name given to each VM we create
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# If this is changed, you can have multiple kubernetes clusters per project
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# Note that even if you don't change it, each tenant/project can have its own
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# Kubernetes cluster
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INSTANCE_PREFIX=kubernetes
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# Name of the user used to configure the VM
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# We use cloud-init to create the user
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VM_USER=kube
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# SSH options for how we connect to the Kubernetes VMs
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# We set the user known hosts file to /dev/null because we are connecting to new VMs.
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# When working in an environment where there is a lot of VM churn, VM IP addresses
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# will be reused, and the ssh keys will be different. This prevents us from seeing error
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# due to this, and it will not save the SSH key to the known_hosts file, so users will
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# still have standard ssh security checks.
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SSH_OPTS="-oStrictHostKeyChecking=no -oUserKnownHostsFile=/dev/null -oLogLevel=ERROR -C"
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# Optional: Enable node logging.
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# Note: currently untested
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ENABLE_NODE_LOGGING=false
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LOGGING_DESTINATION=elasticsearch
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# Optional: When set to true, Elasticsearch and Kibana will be setup
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# Note: currently untested
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ENABLE_CLUSTER_LOGGING=false
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ELASTICSEARCH_LOGGING_REPLICAS=1
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# Optional: Cluster monitoring to setup as part of the cluster bring up:
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# none - No cluster monitoring setup
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# influxdb - Heapster, InfluxDB, and Grafana
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# google - Heapster, Google Cloud Monitoring, and Google Cloud Logging
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# Note: currently untested
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ENABLE_CLUSTER_MONITORING="${KUBE_ENABLE_CLUSTER_MONITORING:-influxdb}"
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# Optional: Install cluster DNS.
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ENABLE_CLUSTER_DNS="${KUBE_ENABLE_CLUSTER_DNS:-true}"
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DNS_SERVER_IP="10.244.240.240"
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DNS_DOMAIN="cluster.local"
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DNS_REPLICAS=1
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# Optional: Enable DNS horizontal autoscaler
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ENABLE_DNS_HORIZONTAL_AUTOSCALER="${KUBE_ENABLE_DNS_HORIZONTAL_AUTOSCALER:-false}"
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# Optional: Install Kubernetes UI
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ENABLE_CLUSTER_UI=true
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# We need to configure subject alternate names (SANs) for the master's certificate
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# we generate. While users will connect via the external IP, pods (like the UI)
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# will connect via the cluster IP, from the SERVICE_CLUSTER_IP_RANGE.
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# In addition to the extra SANS here, we'll also add one for for the service IP.
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MASTER_EXTRA_SANS="DNS:kubernetes,DNS:kubernetes.default,DNS:kubernetes.default.svc,DNS:kubernetes.default.svc.${DNS_DOMAIN}"
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# Optional: if set to true, kube-up will configure the cluster to run e2e tests.
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E2E_STORAGE_TEST_ENVIRONMENT=${KUBE_E2E_STORAGE_TEST_ENVIRONMENT:-false}
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