Build from Dockerfile in subdirectory

I’d like to build the Dockerfile in following path apis/report-api/Dockerfile and push to amazon-ecr. But COPY command in Dockerfile fails because it needs to run from the sub directory. I’ve tried setting working-directory option but its saying: Unexpected value ‘working-directory’. Maven build is working fine, how can build docker image and push?

Here’s files in my project structure:

pom.xml (root pom)
apis/report-api/pom.xml (sub pom)
apis/report-api/Dockerfile
apis/report-api/target/report-api-v1.war (war artifact is created after maven build)

Here’s the apis/report-api/Dockerfile

FROM openjdk:8-jre-alpine

RUN addgroup -S spring && adduser -S spring -G spring
USER spring:spring
RUN mkdir -p /home/spring
WORKDIR /home/spring
COPY target/*.war app.war

EXPOSE 8080
ENTRYPOINT java $JAVA_OPTS -Dfile.encoding=UTF-8 -jar app.war

Here’s the action yml file:

jobs:
  path-context:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2

      - name: Set up JDK 1.8
        uses: actions/setup-java@v1
        with:
          java-version: 1.8

      - name: Maven clean & install
        run: mvn clean install

      - name: Login to ECR
        uses: docker/login-action@v1
        with:
          registry: xxx.dkr.ecr.ap-southeast-1.amazonaws.com/xxx
          username: ${{ secrets.AWS_ACCESS_KEY_ID }}
          password: ${{ secrets.AWS_SECRET_ACCESS_KEY }}

      - name: Set up docker buildx
        uses: docker/setup-buildx-action@v1

      - name: Build and push docker image
        uses: docker/build-push-action@v2
        working-directory: apis/report-api/
        with:
          context: .
          file: ./Dockerfile
          platforms: linux/amd64
          push: true
          tags: |
            repo:${{ github.sha }}
            repo:latest

[chymz]

OK actually, on my side, I had to duplicate context for Dockerfile path:

- name: Build & push image
  uses: docker/build-push-action@v2
    with:
      context: ./build/front
      file: ./build/front/Dockerfile

[digz6666]

@digz6666 Do you have a link to your repo?

Its private repo. I’ll make a small public repo and tell you later 😃