Pipeline upload failed without details

[muhlba91]

I have a simple pipeline like this:

Buildkite::Builder.pipeline do
  command do
    label "echo"
    command "true"
  end
end

Upon execution I receive the error:

 gusto/buildkite-builder:3.0.0 buildkite-builder run alt 

+++ 🧰 �[38;5;48mBuildkite Builder�[0m ─ �[33m.buildkite/pipelines/alt�[0m

�[38;5;102m

Processing �[0m�[38;5;48mBuildkite::Builder::Extensions::Use�[0m

�[38;5;48m└──�[0m�[38;5;102m Finished in 0.0 seconds�[0m

�[38;5;102m

Processing �[0m�[38;5;48mBuildkite::Builder::Extensions::Lib�[0m

�[38;5;48m└──�[0m�[38;5;102m Finished in 0.0 seconds�[0m

�[38;5;102m

Processing �[0m�[38;5;48mBuildkite::Builder::Extensions::Env�[0m

�[38;5;48m└──�[0m�[38;5;102m Finished in 0.0 seconds�[0m

�[38;5;102m

Processing �[0m�[38;5;48mBuildkite::Builder::Extensions::Notify�[0m

�[38;5;48m└──�[0m�[38;5;102m Finished in 0.0 seconds�[0m

�[38;5;102m

Processing �[0m�[38;5;48mBuildkite::Builder::Extensions::Steps�[0m

�[38;5;48m└──�[0m�[38;5;102m Finished in 0.0 seconds�[0m

�[38;5;48m

Done (0.01 seconds)�[0m

+++ :pipeline: Uploading pipeline

Pipeline upload failed, saving as artifact…

�[31m🚨 Error: The command exited with status 1�[0m
^^^ +++
^^^ +++
user command error: The plugin docker command hook exited with status 1

Unfortunately, I do not get any other information on the error. Any ideas on how to solve that?

[technicalpickles]

As the code is right now, it looks like we are calling system which wouldn't include output of the command:

buildkite-builder/lib/buildkite/pipelines/command.rb

Lines 45 to 47 in 685a90d

	def run
	system(*to_a)
	end

buildkite-builder/lib/buildkite/builder/pipeline.rb

Lines 55 to 59 in 685a90d

	unless Buildkite::Pipelines::Command.pipeline(:upload, file.path)
	logger.info "Pipeline upload failed, saving as artifact…"
	Buildkite::Pipelines::Command.artifact!(:upload, file.path)
	abort
	end

I suspect this would need to be changed to get more details about what failed. It seems it should save the pipeline.yml as a n artifact so you can review. With that, it should be possible to download and then use buildkite-agent pipeline upload <path/to/yaml> to see if it has any clues.

[muhlba91]

thanks for the hint!
unfortunately, it also doesn‘t upload the artifact.

EDIT: i tried to execute buildkite-agent pipeline upload <CHILD_PIPELINE> whereas CHILD_PIPELINE refers to a file containing the output of running the builder with preview. this worked without problems and the child pipeline got executed.

[muhlba91]

issue solved - i was running the agent in docker and didn't expose the buildkite-agent binary correctly!

[technicalpickles]

Nice! I made an issue to figure out better debugging output #65