These files are generated with the following command:
mkdir -p {str(tmp_path)}/tls
openssl genrsa -out {str(tmp_path)}/tls/ca.key 4096
openssl req \
-x509 -new -nodes -sha256 \
-key {str(tmp_path)}/tls/ca.key \
-days 3650 \
-subj '/O=Redis Test/CN=Certificate Authority' \
-out {str(tmp_path)}/tls/ca.crt
openssl genrsa -out {str(tmp_path)}/tls/redis.key 2048
openssl req \
-new -sha256 \
-key {str(tmp_path)}/tls/redis.key \
-subj '/O=Redis Test/CN=Server' | \
openssl x509 \
-req -sha256 \
-CA {str(tmp_path)}/tls/ca.crt \
-CAkey {str(tmp_path)}/tls/ca.key \
-CAserial {str(tmp_path)}/tls/ca.txt \
-CAcreateserial \
-days 3650 \
-out {str(tmp_path)}/tls/redis.crt
openssl dhparam -out {str(tmp_path)}/tls/redis.dh 2048
See https://github.com/ray-project/ray/pull/40378/ for more details