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Add a script for generating CA signed certs, and a client cert. #1388
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#!/bin/bash | ||
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# Copyright 2014 Google Inc. All rights reserved. | ||
# | ||
# 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. | ||
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set -o errexit | ||
set -o nounset | ||
set -o pipefail | ||
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cert_ip=$1 | ||
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# TODO: Add support for discovery on other providers? | ||
if [ "$cert_ip" == "_use_gce_external_ip_" ]; then | ||
cert_ip=$(curl -s -H Metadata-Flavor:Google http://metadata.google.internal./computeMetadata/v1/instance/network-interfaces/0/access-configs/0/external-ip) | ||
fi | ||
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tmpdir=$(mktemp -d --tmpdir kubernetes_cacert.XXXXXX) | ||
trap 'rm -rf "${tmpdir}"' EXIT | ||
cd "${tmpdir}" | ||
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# TODO: For now, this is a patched repo that makes subject-alt-name work, when the fix is upstream | ||
# move back to the upstream easyrsa | ||
curl -L -J -O https://github.com/brendandburns/easy-rsa/archive/master.tar.gz > /dev/null 2>&1 | ||
tar xzf easy-rsa-master.tar.gz > /dev/null 2>&1 | ||
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cd easy-rsa-master/easyrsa3 | ||
./easyrsa init-pki > /dev/null 2>&1 | ||
./easyrsa --batch build-ca nopass > /dev/null 2>&1 | ||
./easyrsa --subject-alt-name=IP:$cert_ip build-server-full kubernetes-master nopass > /dev/null 2>&1 | ||
./easyrsa build-client-full kubecfg nopass > /dev/null 2>&1 | ||
cp pki/issued/kubernetes-master.crt /usr/share/nginx/server.cert > /dev/null 2>&1 | ||
cp pki/private/kubernetes-master.key /usr/share/nginx/server.key > /dev/null 2>&1 | ||
cp pki/ca.crt /usr/share/nginx/ca.crt | ||
cp pki/issued/kubecfg.crt /usr/share/nginx/kubecfg.crt | ||
cp pki/private/kubecfg.key /usr/share/nginx/kubecfg.key | ||
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To prevent the script of going on in the present of errors I always recommend starting with:
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done.