Google Professional Cloud Developer Question 264
Select 3Google Cloud PlatformYou are working on a CI/CD pipeline for a microservices-based application deployed on Google Kubernetes Engine (GKE). The application build process is taking too long due to multiple redundant steps and inefficient caching in your Docker builds. Which of the following actions can you take to optimize the build time and ensure faster feedback during development?
- A
Leverage Docker’s multi-stage builds to reduce the size of the final image and avoid unnecessary intermediate build steps.
- B
Use a Cloud Build trigger to rebuild all application components, regardless of changes, to ensure consistency.
- C
Cache dependencies in Cloud Build by specifying the
--cacheoption in your Dockerfile and reusing layers wherever possible. - D
Implement smaller, service-specific build pipelines instead of a single monolithic build pipeline for the entire application.
- E
Disable build caching entirely to ensure a clean build every time and avoid any potential issues from cached layers.
Show answer and explanation
Correct answers: A, C, D
Explanation
To optimize build times in a CI/CD pipeline for a microservices application, it is important to focus on techniques like leveraging Docker’s multi-stage builds, caching dependencies, and creating service-specific pipelines. These strategies help reduce redundant steps and target the builds to only what has changed, ensuring faster feedback and efficient resource usage.
- A. Correct.
Using Docker’s multi-stage builds allows you to optimize the build process by only including what is necessary in the final image, reducing size and build time.
- B. Incorrect.
Rebuilding all components regardless of changes is inefficient and negates the benefits of targeted builds, leading to longer build times.
- C. Correct.
Caching dependencies and reusing Docker layers significantly reduces build time by avoiding redundant steps during each build.
- D. Correct.
Breaking down the build pipeline into smaller, service-specific pipelines allows for targeted builds, improving efficiency and reducing overall build time.
- E. Incorrect.
Disabling build caching increases build time as the same tasks are repeated unnecessarily, which is counterproductive to optimization.