No examples of `path` or `dockerfile` options

I’m working on a project that has multiple Dockerfiles, each of them in a separate directory. One of those is named api, so the dockerfile is in api/Dockerfile. I have the following in my workflow:

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v2
    - uses: docker/build-push-action@v1
      with:
        path: api
        username: companyusername
        password: companypassword
        repository: company/myproject/api
        registry: companyregistry
        tags: latest

I get the following error:

unable to prepare context: unable to evaluate symlinks in Dockerfile path: lstat /github/workspace/api/Dockerfile: no such file or directory

However, I see the checkout action logging the following:

Initializing the repository
  /usr/bin/git init /home/runner/work/myproject/myproject

From the documentation it is unclear that I should be using some variable to determine /home/runner/work/myproject/myproject instead of /github/workspace/. What am I doing wrong?

I also tried using dockerfile:, but also with the same results: always relative to /github/workspace.

[yordis]

I have the following

name: "Release"

on:
  push:
    branches:
      - "production"

jobs:
  publish_docker_image:
    runs-on: ubuntu-latest
    name: Publish docker image
    steps:
      - name: Checkout
        uses: actions/checkout@v1
      - name: Publish image
        uses: docker/build-push-action@v1
        with:
          registry: docker.pkg.github.com
          username: $GITHUB_ACTOR
          password: ${{ secrets.GITHUB_TOKEN }}
          repository: org/repo/name
          tag_with_ref: true
          tag_with_sha: true

And it works.

Make sure you have a Dockerfile in the root of the project, double-check that.

[guumaster]

We have this same issue in our workflow. And I think the documentation is not entirely clear. If you have to specify a context path, be sure to add a step with the check out action.

# This Checkout is necessary when using a context in docker/build-push-action
- name: Checkout
  uses: actions/checkout@v2
....
- uses: docker/build-push-action@v2
  with:
    context: ./path/to/context
    file: ./path/to/context/Dockerfile
    tags: docker/image/name:latest