These script will create a certificate authority and use that CA to create certificates and keys for the admin user and any nodes that belong to the cluster.
The script does not create a certificate authority which is password protected, which is not a good thing. So do not use the script directly in anything that goes in production. Instead, use the scripts as inspiration for creating a CA, admin certificates and node certificates.
OpenSSL has to be installed on the computer for this to work.
Before running the commands below, in the order they are listen. Edit each file so that subject prefix, expire data, key size and hosts are correct.
See the comments in the script for how to write the subject prefix.
SUBJECT_PREFIX=""
CERTIFICATE_EXPIRE_IN=
CERTIFICATE_KEY_SIZE=
HOSTS=""
After edit of the script, run it and directories/files will be created.
sh create_ca_and_admin_certificates.sh
sh create_all_opensearch_nodes_certificates.sh
sh create_all_dashboards_certificates.sh
sh create_all_logstash_certificates.sh