89 lines
2.8 KiB
Bash
89 lines
2.8 KiB
Bash
#!/bin/bash
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# Author: Smana smainklh@gmail.com
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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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set -o errexit
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set -o pipefail
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usage()
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{
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cat << EOF
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Create self signed certificates
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Usage : $(basename $0) -f <config> [-d <ssldir>]
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-h | --help : Show this message
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-f | --config : Openssl configuration file
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-d | --ssldir : Directory where the certificates will be installed
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-c | --cadir : Directory where the existing CA is located
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ex :
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$(basename $0) -f openssl.conf -d /srv/ssl
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EOF
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}
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# Options parsing
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while (($#)); do
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case "$1" in
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-h | --help) usage; exit 0;;
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-f | --config) CONFIG=${2}; shift 2;;
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-d | --ssldir) SSLDIR="${2}"; shift 2;;
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-c | --cadir) CADIR="${2}"; shift 2;;
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*)
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usage
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echo "ERROR : Unknown option"
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exit 3
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;;
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esac
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done
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if [ -z ${CONFIG} ]; then
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echo "ERROR: the openssl configuration file is missing. option -f"
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exit 1
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fi
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if [ -z ${SSLDIR} ]; then
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SSLDIR="/etc/calico/certs"
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fi
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tmpdir=$(mktemp -d /tmp/calico_typha_certs.XXXXXX)
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trap 'rm -rf "${tmpdir}"' EXIT
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cd "${tmpdir}"
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mkdir -p ${SSLDIR} ${CADIR}
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# Root CA
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if [ -e "$CADIR/ca.key" ]; then
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# Reuse existing CA
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cp $CADIR/{ca.crt,ca.key} .
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else
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openssl genrsa -out ca.key 2048 > /dev/null 2>&1
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openssl req -x509 -new -nodes -key ca.key -days 3650 -out ca.crt -subj "/CN=calico-typha-ca" > /dev/null 2>&1
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fi
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# Typha server
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openssl genrsa -out typha-server.key 2048 > /dev/null 2>&1
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openssl req -new -key typha-server.key -out typha-server.csr -subj "/CN=typha-server" -config ${CONFIG} > /dev/null 2>&1
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openssl x509 -req -in typha-server.csr -CA ca.crt -CAkey ca.key -CAcreateserial -out typha-server.crt -days 3650 -extensions ssl_client -extfile ${CONFIG} > /dev/null 2>&1
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# Typha client
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openssl genrsa -out typha-client.key 2048 > /dev/null 2>&1
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openssl req -new -key typha-client.key -out typha-client.csr -subj "/CN=typha-client" -config ${CONFIG} > /dev/null 2>&1
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openssl x509 -req -in typha-client.csr -CA ca.crt -CAkey ca.key -CAcreateserial -out typha-client.crt -days 3650 -extensions ssl_client -extfile ${CONFIG} > /dev/null 2>&1
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# Install certs
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if [ -e "$CADIR/ca.key" ]; then
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# No pass existing CA
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rm -f ca.crt ca.key
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fi
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mv {*.crt,*.key} ${SSLDIR}/
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