test: add e2e for Fortanix CSI provider

[kiran-kannur]

/kind feature
/kind test

What this PR does / why we need it:
This PR adds an e2e Bats test suite for the new Fortanix Secret Store CSI Provider integration.

The test covers:

• Installation of the Fortanix CSI provider using the upstream deployment manifest
• Validation of SecretProviderClass creation referencing Fortanix DSM
• Verification that secrets from Fortanix DSM are mounted successfully into a test pod
• Basic cleanup and teardown steps to ensure the provider, SecretProviderClass, and API key secret are deleted cleanly after test completion

These tests are modeled after existing provider test suites (e.g., AWS, Azure, Vault) and ensure compatibility of the Fortanix provider with the secrets-store-csi-driver e2e test harness.

Which issue(s) this PR fixes:
Fixes #

Is this a chart or deployment yaml update?
No, this PR only adds test files under test/bats/ to include Fortanix provider validation.

Special notes for your reviewer:

• The Fortanix provider manifest is referenced from its official GitHub repository.
• Tests require the following environment variables to be set prior to execution:
  • FORTANIX_API_KEY
  • FORTANIX_DSM_ENDPOINT
  • FORTANIX_TEST_SECRET_NAME
• Verified against Kubernetes v1.30 and secrets-store-csi-driver v1.4.1.

TODOs:

• Added new Fortanix provider e2e test
• Verified successful run on kind/minikube
• Update provider documentation with test instructions
• (optional) Integrate into CI test matrix once provider image is public

[k8s-ci-robot]

@kiran-kannur: The label(s) kind/test cannot be applied, because the repository doesn't have them.

In response to this:

/kind feature
/kind test

What this PR does / why we need it:
This PR adds an end-to-end Bats test suite for the new Fortanix Secret Store CSI Provider integration.

The test covers:

• Installation of the Fortanix CSI provider using the upstream deployment manifest
• Validation of SecretProviderClass creation referencing Fortanix DSM
• Verification that secrets from Fortanix DSM are mounted successfully into a test pod
• Basic cleanup and teardown steps to ensure the provider, SecretProviderClass, and API key secret are deleted cleanly after test completion

These tests are modeled after existing provider test suites (e.g., AWS, Azure, Vault) and ensure compatibility of the Fortanix provider with the secrets-store-csi-driver e2e test harness.

Which issue(s) this PR fixes:
Fixes #

Is this a chart or deployment yaml update?
No — this PR only adds test files under test/bats/ to include Fortanix provider validation.

Special notes for your reviewer:

• The Fortanix provider manifest is referenced from its official GitHub repository.
• Tests require the following environment variables to be set prior to execution:
• FORTANIX_API_KEY
• FORTANIX_DSM_ENDPOINT
• FORTANIX_TEST_SECRET_NAME
• The tests are designed to be self-contained and skip gracefully if these environment variables are not defined.
• Verified against Kubernetes v1.30 and secrets-store-csi-driver v1.4.1.

TODOs:

• Added new Fortanix provider e2e test
• Verified successful run on kind/minikube
• Update provider documentation with test instructions
• (optional) Integrate into CI test matrix once provider image is public

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: kiran-kannur / name: Kiran Kannur (0ab6ba7)

[k8s-ci-robot]

Welcome @kiran-kannur!

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[k8s-ci-robot]

Hi @kiran-kannur. Thanks for your PR.

I'm waiting for a github.com member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: kiran-kannur
Once this PR has been reviewed and has the lgtm label, please assign ritazh for approval. For more information see the Code Review Process.

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[aramase]

@kiran-kannur Please open a PR in test-infra, similar to kubernetes/test-infra#32573, to add an optional job so these tests can be validated.

Also, please sign the CLA.

[aramase]

/retitle test: add e2e for Fortanix CSI provider
/triage accepted