CI vs CD Pipeline Stages
Design a small subsystem that relies on CI vs CD Pipeline Stages. Outline components, data flow, failure modes, and metrics.
Answers use simple, clear English.
Quick interview answer
Use CI vs CD Pipeline Stages as the core idea. Example shape: PR → CI checks; merge to main → deploy staging; manual approval → prod canary..
Detailed answer
Use CI vs CD Pipeline Stages as the core idea. Example shape: PR → CI checks; merge to main → deploy staging; manual approval → prod canary.. Watch for: Flaky tests erode trust; long pipelines slow delivery.. Measure success via latency/error/saturation. Core: CI: build, unit/integration test, lint, security scan on every commit/PR. CD: deploy to staging/prod with approvals, progressive delivery. Separate build once, promote same artifact across envs. Real-time example: PR → CI checks; merge to main → deploy staging; manual approval → prod canary. Pros: Fast feedback; reproducible artifacts. Cons: Flaky tests erode trust; long pipelines slow delivery. Common mistakes: Building different artifacts per environment; skipping tests on main. Best practices: Immutable artifacts; fail fast; cache deps; parallelize jobs. Audience level: Mid-level.
Full explanation
CI: build, unit/integration test, lint, security scan on every commit/PR. CD: deploy to staging/prod with approvals, progressive delivery. Separate build once, promote same artifact across envs.
Real example & use case
PR → CI checks; merge to main → deploy staging; manual approval → prod canary.
Pros & cons
Pros: Fast feedback; reproducible artifacts. Cons: Flaky tests erode trust; long pipelines slow delivery.
Common mistakes
Building different artifacts per environment; skipping tests on main.
Best practices
Immutable artifacts; fail fast; cache deps; parallelize jobs.
Follow-up questions
- How would you test CI vs CD Pipeline Stages?
- What metrics prove CI vs CD Pipeline Stages is healthy in prod?
- How does CI vs CD Pipeline Stages change at 10× traffic?