How can I integrate Dockerfile with CircleCI executor?

How can I integrate Dockerfile with CircleCI executor?

To integrate a Dockerfile with CircleCI, you need to define a job in your config.yml that uses the Docker executor.

What should my config.yml look like for this integration?

Your config.yml should specify the Docker image and include steps to build and test your application using the Dockerfile.

Can you provide a sample config.yml for a Node.js application?

Sure! Here's a basic example:

version: 2.1
executors:
  docker-executor:
    docker:
      - image: circleci/node:latest
jobs:
  build:
    executor: docker-executor
    steps:
      - checkout
      - run:
          name: Build
          command: docker build -t my-app .
      - run:
          name: Test
          command: docker run my-app npm test
workflows:
  version: 2
  build:
    jobs:
      - build

What if I need to use multiple services in my CircleCI job?

You can define additional services in your config.yml under the services key. For example, to use a database, you can add a service for PostgreSQL.