[BUG] opensearch-3.2.0-1.x86_64 rpm installation is successful even when post install scripts fail.

[KrisBuytaert]

Describe the bug

The opensearch rpm installation fails to start with a default config, and throws a confusing error.

The default error is : Caused by: org.opensearch.OpenSearchException: No SSL configuration found
While what actually happened is the following.

I tried installing the rpm while not setting the env OPENSEARCH_INITIAL_ADMIN_PASSWORD= variable.

Related component

No response

To Reproduce

install the rpm on a vanilla Almalinux 9.6 system.

• rpm -vih opensearch-3.2.0-linux-x64.rpm
  try starting the service
• systemctl start opensearch
  OpenSearch fails to start

The stacktrace documents a Caused by: org.opensearch.OpenSearchException: No SSL configuration found

Expected behavior

• Option 0: The opensearch installation fails with a clear postinstal error that the environment variable was not set.
• Option 1: Opensearch starts with a default password
• Option 2: Opensearch starts with a random generated password it places in a documented (and verbose) location.
• Option 3: Opensearch fails to start with a clear pointer to the documentation that explains the environment variable needs to be set, rather than a related SSL error.

Options that require setting the environment parameter are my least preferred one as one of the default expectations of an RPM package is that it works out of the box with no additional configuration , thus not having to set an environment variable this way.

Additional Details

The POSTIN script that does

sh /usr/share/opensearch/plugins/opensearch-security/tools/install_demo_configuration.sh -y -i -s > /var/log/opensearch/install_demo_configuration.log 2>&1 || (echo "ERROR: Something went wrong during demo configuration installation. Please see the logs in /var/log/opensearch/install_demo_configuration.log" && exit 1)

Doesn't actually seem to catch the missing environment variable as an error.

[peterzhuamazon]

Hi @KrisBuytaert ,

Thanks for reporting.

Could you give a complete list of commands you are running,
what OS,
and what logs you are seeing?

We will try to reproduce and see if this can be resolved in a latter version.

Also you need an env var if this is your first time install OpenSearch with deb or rpm:
https://docs.opensearch.org/latest/install-and-configure/install-opensearch/rpm/#install-opensearch-from-a-package
Could you try it out here?

Thanks.