I have a very basic image that runs a
yarn command when built (see below). Locally, this creates the node_modules directory and populates it with the appropriate packages. That said, the ‘Checkout code’ step in my CircleCI build seems to be overwriting everything, ultimately removing the node_modules directory. As such, subsequent commands such as
yarn jest fail with a ‘command not found’ error. Am I misunderstanding something? It doesn’t make sense that I would have to run
yarn in a subsequent step if the image itself ran that command at build time. Note: I’ve redacted the image name for privacy.
FROM myimage COPY package.json yarn.lock ./ RUN yarn
version: 2 jobs: build: docker: - image: myimage steps: - checkout - run: name: Run Jest command: yarn jest
Any help is much appreciated, thanks!