New test for postgresql pushmodel regression

[4N0body5]

Summary by Sourcery

Add a functional test that validates push-model attestation works correctly with a PostgreSQL-backed verifier and registrar, including regression coverage for column truncation errors.

Tests:

• Introduce a new BeakerLib-based functional test scenario that provisions PostgreSQL, configures Keylime for push-model attestation, and verifies successful agent attestation.
• Add regression verification ensuring no StringDataRightTruncation errors occur in the PostgreSQL verifier log when using push-model attestation.
• Include accompanying FMF metadata and PostgreSQL setup script for the new push-model-with-PostgreSQL functional test.

[sourcery-ai]

Reviewer's Guide

Adds a new functional test that validates Keylime push-model attestation works correctly when verifier and registrar use a PostgreSQL backend, and that a previous column-size regression does not reoccur.

File-Level Changes

Change	Details	Files
Introduce a Beakerlib-based functional test that configures PostgreSQL for Keylime verifier/registrar, runs push-model attestation, and asserts successful behavior without regression errors.	Set up PostgreSQL from a clean data directory, adjust pg_hba.conf for md5 auth, and initialize Keylime-specific databases via a setup SQL script Update Keylime verifier, registrar, and agent configuration to use PostgreSQL and push-model parameters including attestation/quote intervals and authentication flags Conditionally start TPM and IMA emulators when needed, then start verifier and registrar services and validate that expected PostgreSQL databases exist Enroll a push-model agent, add it via keylime_tenant with a runtime policy, wait for a PASS attestation status within a timeout, and assert absence of StringDataRightTruncation in verifier logs Implement cleanup steps to stop services/emulators, restore configs and files, and submit common logs	functional/push-model-attestation-with-postgresql-db/test.sh
Add test metadata and database setup SQL for the new PostgreSQL push-model attestation functional test.	Provide FMF metadata for the new functional test, integrating it into the test suite Define SQL to create and grant access to verifier and registrar PostgreSQL databases and users used by the test	functional/push-model-attestation-with-postgresql-db/main.fmf functional/push-model-attestation-with-postgresql-db/setup.psql

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