Quick Start: Migrating from Search Guard 53 and before

This chapter describes how to quickly migrate legacy Search Guard configuration to the new structure. This is useful for testing - possibly as a preparatory step for updating a production cluster.

Note: If you need to update a production cluster with only minimal outage, refer to the corresponding guide.

Prerequisites

In order to perform the migration, you need the following:

The file sg_config.yml from the existing Elasticsearch setup.
Sometimes, sg_config.yml references further files, such as PEM files. You need these as well.
If you are also using Kibana, you need the file kibana.yml from the config directory of the existing Kibana setup.
A system to run the test setup. This can a remote system or your local computer.
You need to download the sgctl tool. It does not require any special installation, just copy it to a suitable place and execute it.

Migrating the configuration

Open a shell and perform the following steps:

Create a work directly
Call sgctl migrate-config /path/to/legacy/sg_config.yml /path/to/legacy/kibana.yml -o /path/to/your/work/directory. Be sure to specify the correct paths to the files sg_config.yml and kibana.yml. If you are using Elasticsearch 7.11 or newer, additionally specify the option --target-platform es711. If you are not using Kibana, just omit the path to kibana.yml.
sgctl will now create new configuration files and print additional information to the console. Carefully review the printed information and the produced configuration.
The new Search Guard version requires that users who shall be allowed to log into Kibana have a certain privilege. If your users are mapped to the role SGS_KIBANA_USER (which was already a recommended practice before), the users will automatically have that privilege. If your users are not mapped to the role, you need to edit your role mapping accordingly.
Start your Elasticsearch test instance and upload the newly generated config files using sgctl. These will be sg_authc.yml and - depending on the configuration - a couple of further files.
Copy the new kibana.yml to the config directory of the Kibana test instance and start Kibana.

Testing the configuration

Elasticsearch

If you are using password-based authentication, just open https://your-cluster.example.com:9200/_searchguard/authinfo in your favorite web browser.

If you are experiencing issues, you can switch on debug mode. For this, either edit sg_authc.yml, add debug: true to the top level and upload the file using sgctl. Alternatively, just use this command:

$ ./sgctl.sh set authc debug --true

You can then open the URL https://your-cluster.example.com:9200/_searchguard/auth/debug to see detailed information on what is going on during the login process.

Note: This mode might reveal sensitive data. Only use this mode on test clusters. Do not forget to switch the debug mode off before going into production.

More on this: Debugging the authc configuration.

Kibana

For testing the configuration, just open the Kibana test instance in your favorite web browser.

You can also enable a debug mode for Kibana. Use the following command:

$ ./sgctl.sh set frontend_config debug --true

When debug mode is active, again open Kibana in your browser and try to log in. If you encounter a login failure, you should see more detailed information about the login process.

More more details refer to the Troubleshooting section.

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