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#!/bin/bash
set -xe
# Enter proper cluster subdirectory
cd $(dirname $0)
CLUSTER="$1"
if [ ! -d "cluster/$CLUSTER" ]; then
echo "Usage: $0 <cluster name>"
echo "The cluster name must be the name of a subdirectory of cluster/"
exit 1
fi
cd cluster/$CLUSTER
mkdir -p secrets/pki
cd secrets/pki
# Do actual stuff
YEAR=$(date +%Y)
for APP in consul nomad; do
# 1. Create certificate authority
if [ ! -f $APP-ca.key ]; then
echo "Generating $APP CA keys..."
#openssl genpkey -algorithm ED25519 -out $APP-ca.key
openssl genrsa -out $APP-ca.key 4096
openssl req -x509 -new -nodes -key $APP-ca.key -sha256 -days 3650 -out $APP-ca.crt -subj "/C=FR/O=Deuxfleurs/CN=$APP"
fi
CERT="${APP}${YEAR}"
# 2. Create and sign certificates for inter-node communication
if [ ! -f $CERT.crt ]; then
echo "Generating $CERT agent keys..."
if [ ! -f $CERT.key ]; then
#openssl genpkey -algorithm ED25519 -out $CERT.key
openssl genrsa -out $CERT.key 4096
fi
openssl req -new -sha256 -key $CERT.key \
-subj "/C=FR/O=Deuxfleurs/CN=$APP" \
-out $CERT.csr
openssl req -in $CERT.csr -noout -text
openssl x509 -req -in $CERT.csr \
-extensions v3_req \
-extfile <(cat <<EOF
[req]
distinguished_name = req_distinguished_name
req_extensions = v3_req
prompt = no
[req_distinguished_name]
C = FR
O = Deuxfleurs
CN = $APP
[v3_req]
keyUsage = keyEncipherment, keyCertSign, dataEncipherment
extendedKeyUsage = serverAuth, clientAuth
subjectAltName = @alt_names
[alt_names]
DNS.1 = server.$CLUSTER.$APP
DNS.2 = client.$CLUSTER.$APP
DNS.3 = localhost
DNS.4 = 127.0.0.1
EOF
) \
-CA $APP-ca.crt -CAkey $APP-ca.key -CAcreateserial \
-out $CERT.crt -days 700
rm $CERT.csr
fi
# 3. Create client-only certificate used for the CLI
if [ ! -f $CERT-client.crt ]; then
echo "Generating $CERT client keys..."
if [ ! -f $CERT-client.key ]; then
#openssl genpkey -algorithm ED25519 -out $CERT-client.key
openssl genrsa -out $CERT-client.key 4096
fi
openssl req -new -sha256 -key $CERT-client.key \
-subj "/C=FR/O=Deuxfleurs/CN=$APP-client" \
-out $CERT-client.csr
openssl req -in $CERT-client.csr -noout -text
openssl x509 -req -in $CERT-client.csr \
-extensions v3_req \
-extfile <(cat <<EOF
[req]
distinguished_name = req_distinguished_name
req_extensions = v3_req
prompt = no
[req_distinguished_name]
C = FR
O = Deuxfleurs
CN = $APP-client
[v3_req]
keyUsage = keyEncipherment, keyCertSign, dataEncipherment
extendedKeyUsage = clientAuth
subjectAltName = @alt_names
[alt_names]
DNS.1 = client.$CLUSTER.$APP
EOF
) \
-CA $APP-ca.crt -CAkey $APP-ca.key -CAcreateserial \
-out $CERT-client.crt -days 700
rm $CERT-client.csr
fi
#if [ ! -f $CERT-client.p12 ]; then
# openssl pkcs12 -export -out $CERT-client.p12 \
# -in $APP-ca.pem -in $CERT-client.crt -inkey $CERT-client.key
#fi
done
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