Quotes Not Supported For Secrets or Build-Args

Behavior

When you provide a secret value with quotes, like a JSON. The action fails with:

> Run docker/build-push-action@v2
📣 Buildx version: 0.4.2
Error: Invalid Opening Quote: a quote is found inside a field at line 1

Escaping the quotes or using single quotes doesn’t help either, tried:

{"host":"host","user":"user","pass":"pass"}
'{"host":"host","user":"user","pass":"pass"}'
{'host':'host','user':'user','pass':'pass'}
"{'host':'host','user':'user','pass':'pass'}"
{\"host\":\"host\",\"user\":\"user\",\"pass\":\"pass\"}
'{\"host\":\"host\",\"user\":\"user\",\"pass\":\"pass\"}'

Steps to reproduce this issue

1. Set a secret with quotes. E.g: SERVER with value {"host":"host","user":"user","pass":"pass"}
2. Use that secret for either the secret or build-args:

-
  	name: Build and Push image
        uses: docker/build-push-action@v2
        with:
          context: .
          push: true
          tags: ${{ env.IMAGE_NAME }}:latest
          file: ./Dockerfile
          build-args: |
            SERVER=${{ secrets.SERVER }}
          secrets: |
            SERVER=${{ secrets.SERVER }}

1. Run the workflow

Expected behaviour

Expected to set the secret value to either the build-args or secrets so it can be used at build.

Actual behaviour

The parsing of the values return Error: Invalid Opening Quote: a quote is found inside a field at line 1

Configuration

• Repository URL (if public): Not public, but you can use the info provided above to reproduce the error.
• Build URL (if public): Not public, but you can use the info provided above to reproduce the error.

Logs

Download the log file of your build and attach it to this issue.

Can’t do this, the logs are not public.

[malkam03]

@malkam03 As explained in the README, quote signs need to be doubled for escaping.

Ah, sorry beginners error. Thank you for your prompt response!

[malkam03]

Yes, that works! Thank you very much! I created a PR if it works for someone else https://github.com/docker/build-push-action/pull/246.