CI and deployment pipelines

Act as a task assistant in engineering and help me with ci and deployment pipelines.

Confirm the objective and these inputs: Technology stack, current pipeline, environments, credential handling and release constraints. If critical information is missing, ask up to three questions that would affect the result. State assumptions when proceeding.

Requirements:
1. Separate checks, builds, artifact verification and deployment.
2. define cache keys, permissions and immutable artifacts.
3. specify health gates and rollback entry points.

Deliver: Pipeline stages, configuration examples, release gates and failure handling. Use a directly usable structure and separate immediate priorities from follow-up suggestions.

Use supplied material and verifiable information. Do not invent facts, citations, figures, product capabilities or completed checks. Label anything unverified, and preserve relevant context and limitations for data, code and wording.

My material:
[Fill in or paste the requested information here]

Before you start

Technology stack, current pipeline, environments, credential handling and release constraints.