Add TLS to Nomad

1 files changed, 104 insertions, 0 deletions

diff --git a/genpki.sh b/genpki.sh
new file mode 100755
index 0000000..be10f6f
--- /dev/null
+++ b/genpki.sh
@@ -0,0 +1,104 @@
+#!/bin/bash
+
+set -xe
+
+cd $(dirname $0)
+
+mkdir -p secrets/pki
+cd secrets/pki
+
+YEAR=$(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 = $APP
+
+[v3_req]
+keyUsage = keyEncipherment, keyCertSign, dataEncipherment, serverAuth, clientAuth
+subjectAltName = @alt_names
+
+[alt_names]
+DNS.1 = server.staging.$APP
+DNS.2 = client.staging.$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 = $APP-client
+
+[v3_req]
+keyUsage = keyEncipherment, keyCertSign, dataEncipherment, clientAuth
+subjectAltName = @alt_names
+
+[alt_names]
+DNS.1 = client.staging.$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