wallies/openssl repository overview

docker build -t wallies/openssl --build-arg OPENSSL_VERSION=1.1.0 .

docker run --rm -it --name openssl \
  -v $(pwd):/certs \
  wallies/openssl \
  openssl ecparam -list_curves

docker run --rm -it --name openssl \
  -v $(pwd)/certs:/certs \
  wallies/openssl \
  openssl ecparam -out /certs/ec_key.pem \
  -name secp521r1 -noout -genkey

docker run --rm -it --name openssl \
  -v $(pwd)/certs:/certs \
  -e ALT_NAME="DNS:xip.io,DNS:127.0.0.1.xip.io" \
  wallies/openssl \
  openssl req -new -key /certs/ec_key.pem \
  -sha256 -nodes -outform pem -reqexts SAN \
  -subj "/C=UK/ST=London/L=London/O=xip/OU=IT/CN=xip.io" \
  -out /certs/ecc.csr

ec_key.pem
ecc.csr