jumpaku/openssl-docker repository overview

docker run -it -v $(pwd):/workdir jumpaku/openssl-docker bash

docker-compose run openssl bash

version: '3'

services: 
    openssl:
        image: 'jumpaku/openssl-docker'
        volumes: 
            - './certificates/:/workdir/'

CERT_PATH=/workdir
SERVER_NAME=example.com

openssl req -new -newkey rsa:2048 -nodes -out "$CERT_PATH/ca_csr.pem" -keyout "$CERT_PATH/ca_privkey.pem" -subj="/C=JP"
openssl req -x509 -key "$CERT_PATH/ca_privkey.pem" -in "$CERT_PATH/ca_csr.pem" -out "$CERT_PATH/ca_cert.pem" -days 356

openssl req -new -newkey rsa:2048 -nodes -out "$CERT_PATH/csr.pem" -keyout "$CERT_PATH/privkey.pem" -subj="/CN=$SERVER_NAME"
SERIAL="0x$(echo -n $SERVER_NAME | openssl sha256 | awk '{print $2}')"
openssl x509 -req -CA "$CERT_PATH/ca_cert.pem" -CAkey "$CERT_PATH/ca_privkey.pem" -set_serial "$SERIAL" -in "$CERT_PATH/csr.pem" -out "$CERT_PATH/cert.pem" -days 365