Container Infrastructure Management Service for OpenStack
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#!/bin/sh
# Copyright 2014 The Kubernetes Authors 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.
set -o errexit
set -o nounset
set -o pipefail
. /etc/sysconfig/heat-params
if [ "$TLS_DISABLED" == "True" ]; then
exit 0
fi
cert_dir=/srv/kubernetes
cert_conf_dir=${cert_dir}/conf
cert_group=root
mkdir -p "$cert_dir"
mkdir -p "$cert_conf_dir"
CA_CERT=$cert_dir/ca.crt
CLIENT_CERT=$cert_dir/client.crt
CLIENT_CSR=$cert_dir/client.csr
CLIENT_KEY=$cert_dir/client.key
#Get a token by user credentials and trust
auth_json=$(cat << EOF
{
"auth": {
"identity": {
"methods": [
"password"
],
"password": {
"user": {
"id": "$TRUSTEE_USER_ID",
"password": "$TRUSTEE_PASSWORD"
}
}
},
"scope": {
"OS-TRUST:trust": {
"id": "$TRUST_ID"
}
}
}
}
EOF
)
#trust is introduced in Keystone v3 version
AUTH_URL=${AUTH_URL/v2.0/v3}
USER_TOKEN=`curl -s -i -X POST -H "Content-Type: application/json" -d "$auth_json" \
$AUTH_URL/auth/tokens | grep X-Subject-Token | awk '{print $2}'`
# Get CA certificate for this bay
curl -X GET \
-H "X-Auth-Token: $USER_TOKEN" \
$MAGNUM_URL/certificates/$BAY_UUID | python -c 'import sys, json; print json.load(sys.stdin)["pem"]' > $CA_CERT
# Create config for client's csr
cat > ${cert_conf_dir}/client.conf <<EOF
[req]
distinguished_name = req_distinguished_name
req_extensions = req_ext
prompt = no
[req_distinguished_name]
CN = kubernetes.invalid
[req_ext]
keyUsage=critical,digitalSignature,keyEncipherment
extendedKeyUsage=clientAuth
subjectAltName=dirName:kubelet,dirName:kubeproxy
[kubelet]
CN=kubelet
[kubeproxy]
CN=kube-proxy
EOF
# Generate client's private key and csr
openssl genrsa -out "${CLIENT_KEY}" 4096
chmod 400 "${CLIENT_KEY}"
openssl req -new -days 1000 \
-key "${CLIENT_KEY}" \
-out "${CLIENT_CSR}" \
-reqexts req_ext \
-config "${cert_conf_dir}/client.conf"
# Send csr to Magnum to have it signed
csr_req=$(python -c "import json; fp = open('${CLIENT_CSR}'); print json.dumps({'bay_uuid': '$BAY_UUID', 'csr': fp.read()}); fp.close()")
curl -X POST \
-H "X-Auth-Token: $USER_TOKEN" \
-H "Content-Type: application/json" \
-d "$csr_req" \
$MAGNUM_URL/certificates | python -c 'import sys, json; print json.load(sys.stdin)["pem"]' > ${CLIENT_CERT}
chmod 500 "${cert_dir}"
chown -R kube:kube "${cert_dir}"
sed -i '
s|CA_CERT|'"$CA_CERT"'|
s|CLIENT_CERT|'"$CLIENT_CERT"'|
s|CLIENT_KEY|'"$CLIENT_KEY"'|
' /srv/kubernetes/kubeconfig.yaml