CI: Allow additional ops file for docker start-bosh

[selzoc]

Also, revert the gcp-internal-dns-ops file to only use gcp internal DNS.

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: ASSERTIVE

Plan: Pro

Run ID: 0c0505c8-2219-4148-9f74-12c4fec451b2

📥 Commits

Reviewing files that changed from the base of the PR and between 7f26d11 and 8072d61.

📒 Files selected for processing (2)

• ci/dockerfiles/docker-cpi/gcp-internal-dns-ops.yml
• ci/dockerfiles/docker-cpi/start-bosh.sh

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Walkthrough

This pull request makes two independent updates to the BOSH CI infrastructure. The first change modifies the GCP DNS configuration to use only the internal DNS server (169.254.169.254), removing the external Google DNS entry (8.8.8.8). The second change extends the BOSH director deployment script to support injecting additional ops files through the ADDITIONAL_DIRECTOR_OPS_FILES environment variable, enabling more flexible deployment configurations without script modifications.

Suggested reviewers

• aramprice

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch docker-cpi-additional-ops

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