Hi all, I’m trying to publish my docker image with pants publish, however, I got this error:

14:25:36.73 [DEBUG] spawned local process as Some(35313) for Process { argv: ["/usr/local/bin/docker", "build", "--pull=False", "--tag", "us-docker.pkg.dev/xx/containers/text-alignment:latest", "--file", "text-alignment/Dockerfile", "."], env: {"DOCKER_CONFIG": "/Users/xx/.docker", "PATH": "/tmp/pants-sandbox-cPOlym/xx", "__UPSTREAM_IMAGE_IDS": ""}, working_directory: None, input_digests: InputDigests { complete: DirectoryDigest { digest: Digest { hash: Fingerprint<xx>, size_bytes: 243 }, tree: "Some(..)" }, nailgun: DirectoryDigest { digest: Digest { hash: Fingerprint<xx>, size_bytes: 0 }, tree: "Some(..)" }, input_files: DirectoryDigest { digest: Digest { hash: Fingerprint<xx>, size_bytes: 89 }, tree: "Some(..)" }, immutable_inputs: {RelativePath("xx"): DirectoryDigest { digest: Digest { hash: Fingerprint<xx>, size_bytes: 488 }, tree: "Some(..)" }}, use_nailgun: {} }, output_files: {}, output_directories: {}, timeout: None, execution_slot_variable: None, concurrency_available: 0, description: "Building docker image us-docker.pkg.dev/xx/containers/text-alignment:latest", level: Info, append_only_caches: {}, jdk_home: None, cache_scope: PerSession, execution_environment: ProcessExecutionEnvironment { name: None, platform: Linux_arm64, strategy: Local }, remote_cache_speculation_delay: 0ns }

stderr:
ERROR: unknown flag: --pull

can someone help me understand what’s the problem and how to fix it?

An error like that sounds like

/usr/local/bin/docker

doesn't support a flag pants expects. Pants is mostly a thin wrapper for running tools like that, but can have minimum versions of the tool, if there's new features required. For debugging this, you can look at that that docker binary, e.g. check

docker build --help

and see if

--pull

is listed, and maybe then look at

docker --version

too. In general, https://www.pantsbuild.org/docs/troubleshooting#debug-tip-inspect-the-sandbox-with---keep-sandboxes is great for investigating issues, by jumping into the sandbox and seeing/editing what pants ran

thanks! it turned out since I’m using a virtual machine, so the docker config was configured to read from my host machine. Updating the config path fixed the issue. thanks!