Add server address args in cert-gen.sh

Author: haohanyang

scripts/cert-gen.sh

@@ -3,20 +3,23 @@
 
 set -e
 
+# Read server address from command line args
+SERVER_ADDR=${1:-localhost}
+
 mkdir -p certs
 
 # Generate a Certificate Authority (CA)
 openssl genrsa -out certs/ca.key 4096
-openssl req -x509 -new -nodes -key certs/ca.key -sha256 -days 365 -out certs/ca.pem -subj "/CN=localhost"
+openssl req -x509 -new -nodes -key certs/ca.key -sha256 -days 365 -out certs/ca.pem -subj "/CN=${SERVER_ADDR}"
 
 
 # Generate a Server Key and Certificate Signing Request (CSR)
 # Passphrase is set to 123
 openssl genrsa -out certs/mongodb.key -passout pass:123 4096
-openssl req -new -key certs/mongodb.key -out certs/mongodb.csr -subj "/CN=localhost"
+openssl req -new -key certs/mongodb.key -out certs/mongodb.csr -subj "/CN=${SERVER_ADDR}"
 
 # Sign the Server Certificate with the CA
-openssl x509 -req -extfile <(printf "subjectAltName=DNS:localhost") -in certs/mongodb.csr -CA certs/ca.pem -CAkey certs/ca.key -CAcreateserial -out certs/mongodb.crt -days 365 -sha256
+openssl x509 -req -extfile <(printf "subjectAltName=DNS:${SERVER_ADDR}") -in certs/mongodb.csr -CA certs/ca.pem -CAkey certs/ca.key -CAcreateserial -out certs/mongodb.crt -days 365 -sha256
 
 # Combine Server Key and Certificate
 cat certs/mongodb.key certs/mongodb.crt > certs/mongodb.pem