faas-cli might be incompatible for docker versions 23.0.0 and above

[NikhilSharmaWe]

Expected Behaviour

faas-cli up -f pydict.yml works fine and builds an image

Current Behaviour

• But for docker versions 23.0.0 or above the faas-cli up command shows this error:

Errors received during build:
- [pydict] received non-zero exit code from build, error: failed to fetch metadata: fork/exec /usr/local/lib/docker/cli-plugins/docker-buildx: no such file or directory

ERROR: BuildKit is enabled but the buildx component is missing or broken.
       Install the buildx component to build images with BuildKit:
       https://docs.docker.com/go/buildx/ 

• Build works fine when docker version 20.10.24 is used.

List All Possible Solutions and Workarounds

• The issue is probably because of the changes made in docker 23.0.0 release regarding the docker build: https://docs.docker.com/engine/release-notes/23.0/#new
• So I think we can tackle this issue by setting env var DOCKER_BUILDKIT to 0 when docker version is 23.0.0 or above

  Which Solution Do You Recommend?

Steps to Reproduce (for bugs)

Can reproduce the issue by trying to build image through openfaas with docker release version 23.0.0 or above.

Context

Your Environment

• FaaS-CLI version ( Full output from: faas-cli version ): 0.16.3
• Docker version ( Full output from: docker version ): 23.0.4 (when error occurs)
• Are you using Docker Swarm (FaaS-swarm ) or Kubernetes (FaaS-netes)? Kubernetes
• Operating System and version (e.g. Linux, Windows, MacOS): wsl: Ubuntu 20.04.5 LTS
• Link to your project or a code example to reproduce issue:

[alexellis]

We'll take a look at this, thank you for sharing.

I'm not sure if you could run docker buildx uninstall?

[alexellis]

Could you make a suggestion in Which Solution Do You Recommend?

Note that faas-cli publish requires DOCKER_BUILDKIT=1