61 lines
2 KiB
Bash
61 lines
2 KiB
Bash
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#!/bin/bash
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# Copyright 2015 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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# This is an example script that creates etcd clusters.
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# Vitess requires a global cluster, as well as one for each cell.
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#
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# For automatic discovery, an etcd cluster can be bootstrapped from an
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# existing cluster. In this example, we use an externally-run discovery
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# service, but you can use your own. See the etcd docs for more:
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# https://github.com/coreos/etcd/blob/v2.0.13/Documentation/clustering.md
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set -e
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script_root=`dirname "${BASH_SOURCE}"`
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source $script_root/env.sh
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replicas=${ETCD_REPLICAS:-3}
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CELLS=${CELLS:-'test'}
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cells=`echo $CELLS | tr ',' ' '`
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for cell in 'global' $cells; do
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# Generate a discovery token.
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echo "Generating discovery token for $cell cell..."
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discovery=$(curl -sL https://discovery.etcd.io/new?size=$replicas)
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if [ -z "$discovery" ]; then
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echo "Failed to get etcd discovery token for cell '$cell'."
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exit 1
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fi
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# Create the client service, which will load-balance across all replicas.
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echo "Creating etcd service for $cell cell..."
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cat etcd-service-template.yaml | \
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sed -e "s/{{cell}}/$cell/g" | \
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$KUBECTL create -f -
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# Expand template variables
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sed_script=""
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for var in cell discovery replicas; do
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sed_script+="s,{{$var}},${!var},g;"
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done
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# Create the replication controller.
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echo "Creating etcd replicationcontroller for $cell cell..."
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cat etcd-controller-template.yaml | sed -e "$sed_script" | $KUBECTL create -f -
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done
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