Cannot consume created files in docker build

[rupert160]

I have a single step that creates some files and attempts to pull these into a docker container using `docker build`

my `bitibucket-pipeline.yml` file is:

pipelines:
  default:
    - step:
      name: certificates
      oidc: true
      image:
        name: 242011367797.dkr.ecr.ap-southeast-2.amazonaws.com/datallama/bitbucket_pipeline:0.3
        aws:
          oidc-role: arn:aws:iam::242011367797:role/dl_ecr_admin
      script:
        - bash ui/fixcerts.sh --pipeline
        - ls ${BITBUCKET_CLONE_DIR}
        - find "$(pwd -P)/certs" -name "server*"
- docker build --tag 242011367797.dkr.ecr.ap-southeast-2.amazonaws.com/datallama/test/dlmvp_657/ui:${BITBUCKET_BUILD_NUMBER} /opt/atlassian/pipelines/agent/build/ui
services:
- docker

and the `ui/Dockerfile` is:

FROM httpd:2.4.41 AS uiinit
COPY certs/server.crt /usr/local/apache2/conf/server.crt
EXPOSE 80 443
CMD ["httpd-foreground"]

the full path to the certs/server.crt file is: /opt/atlassian/pipelines/agent/build/certs/server.crt

and the error I get for the build is on the `COPY` statement where the server.crt cannot be picked up from /var/lib/docker/165536.165536/tmp/buildkit-mount3275278172/certs: no such file or directory

I've also tried using artifacts and i have also failed to consume files in docker builds.

pipelines:
  default:
    - step:
        name: certificates
        oidc: true
        image:
          name: 242011367797.dkr.ecr.ap-southeast-2.amazonaws.com/datallama/bitbucket_pipeline:0.3
          aws:
            oidc-role: arn:aws:iam::242011367797:role/dl_ecr_admin
        script:
          - bash ui/fixcerts.sh --pipeline
          - ls certs
        artifacts:
          - certs/**
    - step:
      name: build
      oidc: true
      image:
        name: 242011367797.dkr.ecr.ap-southeast-2.amazonaws.com/datallama/bitbucket_pipeline:0.3
        aws:
          oidc-role: arn:aws:iam::242011367797:role/dl_ecr_admin
      script:
        - cd $BITBUCKET_CLONE_DIR && pwd && find "$(pwd -P)" -name "server*" && cd -
        - find "$(pwd -P)/certs" -name "server*"
        - docker build --tag 242011367797.dkr.ecr.ap-southeast-2.amazonaws.com/datallama/test/dlmvp_657/ui:${BITBUCKET_BUILD_NUMBER} /opt/atlassian/pipelines/agent/build/ui
      services:
        - docker

However this fails for the same reason:/var/lib/docker/165536.165536/tmp/buildkit-mount1013567659/certs: no such file or directory

 Is there a special context I need to use for passing files to bulid containers? How can I COPY files in a `docker build` command?

[rupert160]

I had a relative directory issue, placing the `certs` directory within the `ui` directory made the build relative to `docker build` command whist it was visible to the pipeline, it wasn't visible to docker.