How can I optimize my CircleCI configuration for faster builds?

How can I optimize my CircleCI configuration for faster builds?

To optimize your CircleCI configuration, consider using caching, parallelism, and reducing unnecessary steps.

What specific caching strategies should I implement?

You can cache dependencies, build artifacts, and Docker images to speed up your builds significantly.

How do I set up caching in my CircleCI config?

You can set up caching by using the save_cache and restore_cache keys in your .circleci/config.yml file.

Can you give me an example of a caching configuration?

Sure! Here's a simple example:

version: 2.1
jobs:
  build:
    docker:
      - image: circleci/python:3.8
    steps:
      - checkout
      - restore_cache:
          keys:
            - v1-dependencies-{{ checksum "requirements.txt" }}
      - run:
          name: Install dependencies
          command: pip install -r requirements.txt
      - save_cache:
          paths:
            - .venv
          key: v1-dependencies-{{ checksum "requirements.txt" }}