How can I manage Docker cache in CircleCI?

How can I manage Docker cache in CircleCI?

You can manage Docker cache in CircleCI by using the docker executor and configuring caching in your .circleci/config.yml file.

What specific steps do I need to take to set up caching?

First, define a cache key in your config file. Then, specify the paths to cache, such as ~/.docker or your project’s build directories.

Can you give me an example of a config file with caching?

Sure! Here's a simple example:

version: 2.1
jobs:
  build:
    docker:
      - image: circleci/python:3.8
    steps:
      - checkout
      - setup_remote_docker:
          version: 20.10.7
          docker_layer_caching: true
      - run:
          name: Build
          command: docker build -t my-image .
      - save_cache:
          paths:
            - ~/.docker
          key: docker-cache-{{ .Branch }}