| version | Buildx version. (eg. v0.3.0) | no | — |
| driver | Sets the builder driver to be used | no | docker-container |
| driver-opts | List of additional driver-specific options. (eg. image=moby/buildkit:master) | no | — |
| buildkitd-flags | Flags for buildkitd daemon | no | --allow-insecure-entitlement security.insecure --allow-insecure-entitlement network.host |
| install | Sets up docker build command as an alias to docker buildx build | no | false |
| use | Switch to this builder instance | no | true |
| endpoint | Optional address for docker socket or context from `docker context ls` | no | — |
| platforms | Fixed platforms for current node. If not empty, values take priority over the detected ones | no | — |
| config | BuildKit config file | no | — |
| config-inline | Inline BuildKit config | no | — |
| append | Append additional nodes to the builder | no | — |
| cleanup | Cleanup temp files and remove builder at the end of a job | no | true |